rename MIT to 1x2uC for preonic

I was missing the KC_BSLS from my Dvorak layer, so I needed to add it back in.

Makefile

@@ -67,7 +67,7 @@ $(eval $(call NEXT_PATH_ELEMENT))
 # It's really a very simple if else chain, if you squint enough,
 # but the makefile syntax makes it very verbose.
 # If we are in a subfolder of keyboards
-# 
+#
 # *** No longer needed **
 #
 # ifeq ($(CURRENT_PATH_ELEMENT),keyboards)
@@ -307,11 +307,6 @@ define PARSE_KEYBOARD
     KEYBOARD_FOLDER_PATH_3 := $$(patsubst %/,%,$$(dir $$(KEYBOARD_FOLDER_PATH_2)))
     KEYBOARD_FOLDER_PATH_4 := $$(patsubst %/,%,$$(dir $$(KEYBOARD_FOLDER_PATH_3)))
     KEYBOARD_FOLDER_PATH_5 := $$(patsubst %/,%,$$(dir $$(KEYBOARD_FOLDER_PATH_4)))
-    KEYBOARD_FOLDER_1 := $$(notdir $$(KEYBOARD_FOLDER_PATH_1))
-    KEYBOARD_FOLDER_2 := $$(notdir $$(KEYBOARD_FOLDER_PATH_2))
-    KEYBOARD_FOLDER_3 := $$(notdir $$(KEYBOARD_FOLDER_PATH_3))
-    KEYBOARD_FOLDER_4 := $$(notdir $$(KEYBOARD_FOLDER_PATH_4))
-    KEYBOARD_FOLDER_5 := $$(notdir $$(KEYBOARD_FOLDER_PATH_5))
 
     KEYMAPS :=
     # get a list of all keymaps
@@ -325,35 +320,35 @@ define PARSE_KEYBOARD
         $$(KEYBOARD_FOLDER_3) $$(KEYBOARD_FOLDER_4) $$(KEYBOARD_FOLDER_5), $$(KEYMAPS)))
 
     KEYBOARD_LAYOUTS :=
-    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_5)/rules.mk)","")
+    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_5)/rules.mk)","")
       LAYOUTS :=
-      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_5)/rules.mk)
+      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_5)/rules.mk)
       KEYBOARD_LAYOUTS := $$(sort $$(LAYOUTS) $$(KEYBOARD_LAYOUTS))
     endif
-    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_4)/rules.mk)","")
+    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_4)/rules.mk)","")
       LAYOUTS :=
-      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_4)/rules.mk)
+      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_4)/rules.mk)
       KEYBOARD_LAYOUTS := $$(sort $$(LAYOUTS) $$(KEYBOARD_LAYOUTS))
     endif
-    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_3)/rules.mk)","")
+    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_3)/rules.mk)","")
       LAYOUTS :=
-      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_3)/rules.mk)
+      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_3)/rules.mk)
       KEYBOARD_LAYOUTS := $$(sort $$(LAYOUTS) $$(KEYBOARD_LAYOUTS))
     endif
-    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_2)/rules.mk)","")
+    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_2)/rules.mk)","")
       LAYOUTS :=
-      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_2)/rules.mk)
+      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_2)/rules.mk)
       KEYBOARD_LAYOUTS := $$(sort $$(LAYOUTS) $$(KEYBOARD_LAYOUTS))
     endif
-    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_1)/rules.mk)","")
+    ifneq ("$$(wildcard $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_1)/rules.mk)","")
       LAYOUTS :=
-      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_1)/rules.mk)
+      $$(eval include $(ROOT_DIR)/keyboards/$$(KEYBOARD_FOLDER_PATH_1)/rules.mk)
       KEYBOARD_LAYOUTS := $$(sort $$(LAYOUTS) $$(KEYBOARD_LAYOUTS))
     endif
 
     LAYOUT_KEYMAPS :=
     $$(foreach LAYOUT,$$(KEYBOARD_LAYOUTS),$$(eval LAYOUT_KEYMAPS += $$(notdir $$(patsubst %/.,%,$$(wildcard $(ROOT_DIR)/layouts/*/$$(LAYOUT)/*/.)))))
-    
+
     KEYMAPS := $$(sort $$(KEYMAPS) $$(LAYOUT_KEYMAPS))
 
     # if the rule after removing the start of it is empty (we haven't specified a kemap or target)

common.mk

@@ -3,16 +3,16 @@ include message.mk
 # Directory common source files exist
 TOP_DIR = .
 TMK_DIR = tmk_core
-TMK_PATH = $(TOP_DIR)/$(TMK_DIR)
-LIB_PATH = $(TOP_DIR)/lib
+TMK_PATH = $(TMK_DIR)
+LIB_PATH = lib
 
 QUANTUM_DIR = quantum
-QUANTUM_PATH = $(TOP_DIR)/$(QUANTUM_DIR)
+QUANTUM_PATH = $(QUANTUM_DIR)
 
 DRIVER_DIR = drivers
-DRIVER_PATH = $(TOP_DIR)/$(DRIVER_DIR)
+DRIVER_PATH = $(DRIVER_DIR)
 
-BUILD_DIR := $(TOP_DIR)/.build
+BUILD_DIR := .build
 
 COMMON_VPATH := $(TOP_DIR)
 COMMON_VPATH += $(TMK_PATH)
@@ -21,4 +21,5 @@ COMMON_VPATH += $(QUANTUM_PATH)/keymap_extras
 COMMON_VPATH += $(QUANTUM_PATH)/audio
 COMMON_VPATH += $(QUANTUM_PATH)/process_keycode
 COMMON_VPATH += $(QUANTUM_PATH)/api
-COMMON_VPATH += $(DRIVER_PATH)
+COMMON_VPATH += $(QUANTUM_PATH)/split_common
+COMMON_VPATH += $(DRIVER_PATH)

common_features.mk

@@ -197,6 +197,12 @@ ifeq ($(strip $(USB_HID_ENABLE)), yes)
     include $(TMK_DIR)/protocol/usb_hid.mk
 endif
 
+
+ifeq ($(strip $(HD44780_ENABLE)), yes)
+    SRC += drivers/avr/hd44780.c
+	OPT_DEFS += -DHD44780_ENABLE
+endif
+
 QUANTUM_SRC:= \
     $(QUANTUM_DIR)/quantum.c \
     $(QUANTUM_DIR)/keymap_common.c \
@@ -204,5 +210,17 @@ QUANTUM_SRC:= \
     $(QUANTUM_DIR)/process_keycode/process_leader.c
 
 ifndef CUSTOM_MATRIX
-    QUANTUM_SRC += $(QUANTUM_DIR)/matrix.c
+    ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
+        QUANTUM_SRC += $(QUANTUM_DIR)/split_common/matrix.c
+    else
+        QUANTUM_SRC += $(QUANTUM_DIR)/matrix.c
+    endif
+endif
+
+ifeq ($(strip $(SPLIT_KEYBOARD)), yes)
+    OPT_DEFS += -DSPLIT_KEYBOARD
+    QUANTUM_SRC += $(QUANTUM_DIR)/split_common/split_flags.c \
+                $(QUANTUM_DIR)/split_common/split_util.c \
+                $(QUANTUM_DIR)/split_common/i2c.c \
+                $(QUANTUM_DIR)/split_common/serial.c  
 endif

docs/_sidebar.md

@@ -55,18 +55,22 @@
   * [Userspace](feature_userspace.md)
 
 * [Keycodes](keycodes.md)
-  * [Backlight](feature_backlight.md#backlight-keycodes)
   * [Basic](keycodes_basic.md)
+  * [Quantum](quantum_keycodes.md)
+  * [Audio](feature_audio.md#audio-keycodes)
+  * [Backlight](feature_backlight.md#backlight-keycodes)
   * [Bluetooth](feature_bluetooth.md#bluetooth-keycodes)
   * [Bootmagic](feature_bootmagic.md#bootmagic-keycodes)
   * [Layer Switching](feature_advanced_keycodes.md#switching-and-toggling-layers)
   * [Mod+Key](feature_advanced_keycodes.md#modifier-keys)
   * [Mod Tap](feature_advanced_keycodes.md#mod-tap)
+  * [Mouse Keys](feature_mouse_keys.md#mapping-mouse-actions-to-keyboard-keys)
   * [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys)
-  * [Quantum](quantum_keycodes.md)
   * [RGB Light](feature_rgblight.md#rgblight-keycodes)
+  * [RGB Matrix](feature_rgb_matrix.md#keycodes)
   * [Shifted Keys](feature_advanced_keycodes.md#shifted-keycodes)
   * [Stenography](feature_stenography.md#keycode-reference)
+  * [Swap Hands](feature_swap_hands.md#swap-keycodes)
   * [Thermal Printer](feature_thermal_printer.md#thermal-printer-keycodes)
   * [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
 

docs/_summary.md

@@ -43,7 +43,9 @@
   * [Pointing Device](feature_pointing_device.md)
   * [PS/2 Mouse](feature_ps2_mouse.md)
   * [RGB Lighting](feature_rgblight.md)
-  * [Space Cadet](feature_space_cadet.md)
+  * [RGB Matrix](feature_rgb_matrix.md)
+  * [Space Cadet Shift](feature_space_cadet.md)
+  * [Space Cadet Shift Enter](feature_space_shift_cadet.md)
   * [Stenography](feature_stenography.md)
   * [Swap Hands](feature_swap_hands.md)
   * [Tap Dance](feature_tap_dance.md)
@@ -53,18 +55,22 @@
   * [Userspace](feature_userspace.md)
 
 * [Keycodes](keycodes.md)
-  * [Backlight](feature_backlight.md#backlight-keycodes)
   * [Basic](keycodes_basic.md)
+  * [Quantum](quantum_keycodes.md)
+  * [Audio](feature_audio.md#audio-keycodes)
+  * [Backlight](feature_backlight.md#backlight-keycodes)
   * [Bluetooth](feature_bluetooth.md#bluetooth-keycodes)
   * [Bootmagic](feature_bootmagic.md#bootmagic-keycodes)
   * [Layer Switching](feature_advanced_keycodes.md#switching-and-toggling-layers)
   * [Mod+Key](feature_advanced_keycodes.md#modifier-keys)
   * [Mod Tap](feature_advanced_keycodes.md#mod-tap)
+  * [Mouse Keys](feature_mouse_keys.md#mapping-mouse-actions-to-keyboard-keys)
   * [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys)
-  * [Quantum](quantum_keycodes.md)
   * [RGB Light](feature_rgblight.md#rgblight-keycodes)
+  * [RGB Matrix](feature_rgb_matrix.md#keycodes)
   * [Shifted Keys](feature_advanced_keycodes.md#shifted-keycodes)
   * [Stenography](feature_stenography.md#keycode-reference)
+  * [Swap Hands](feature_swap_hands.md#swap-keycodes)
   * [Thermal Printer](feature_thermal_printer.md#thermal-printer-keycodes)
   * [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
 

docs/config_options.md

@@ -126,14 +126,18 @@ If you define these options you will enable the associated feature, which may in
   * how long before a tap becomes a hold, if set above 500, a key tapped during the tapping term will turn it into a hold too
 * `#define RETRO_TAPPING`
   * tap anyway, even after TAPPING_TERM, if there was no other key interruption between press and release
+  * See [Retro Tapping](feature_advanced_keycodes.md#retro-tapping) for details
 * `#define TAPPING_TOGGLE 2`
   * how many taps before triggering the toggle
 * `#define PERMISSIVE_HOLD`
   * makes tap and hold keys work better for fast typers who don't want tapping term set above 500
+  * See [Permissive Hold](feature_advanced_keycodes.md#permissive-hold) for details
 * `#define IGNORE_MOD_TAP_INTERRUPT`
   * makes it possible to do rolling combos (zx) with keys that convert to other keys on hold
+  * See [Mod tap interrupt](feature_advanced_keycodes.md#mod-tap-interrupt) for details
 * `#define TAPPING_FORCE_HOLD`
   * makes it possible to use a dual role key as modifier shortly after having been tapped
+  * See [Hold after tap](feature_advanced_keycodes.md#hold-after-tap)
 * `#define LEADER_TIMEOUT 300`
   * how long before the leader key times out
 * `#define ONESHOT_TIMEOUT 300`
@@ -175,6 +179,16 @@ If you define these options you will enable the associated feature, which may in
 * `#define MOUSEKEY_MAX_SPEED 7`
 * `#define MOUSEKEY_WHEEL_DELAY 0`
 
+## Split Keyboard Options
+
+Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk
+
+* `#define SPLIT_HAND_PIN B7`
+  * For using high/low pin to determine handedness, low = right hand, high = left hand. Replace 'B7' with the pin you are using. This is optional and you can still use the EEHANDS method or MASTER_LEFT / MASTER_RIGHT defines like the stock Let's Split uses.
+  
+* `#define USE_I2C`
+  * For using I2C instead of Serial (defaults to serial)
+
 # The `rules.mk` File
 
 This is a [make](https://www.gnu.org/software/make/manual/make.html) file that is included by the top-level `Makefile`. It is used to set some information about the MCU that we will be compiling for as well as enabling and disabling certain features.
@@ -228,3 +242,5 @@ Use these to enable or disable building certain features. The more you have enab
   * Unicode
 * `BLUETOOTH_ENABLE`
   * Enable Bluetooth with the Adafruit EZ-Key HID
+* `SPLIT_KEYBOARD`
+  * Enables split keyboard support (dual MCU like the let's split and bakingpy's boards) and includes all necessary files located at quantum/split_common

docs/feature_advanced_keycodes.md

@@ -203,3 +203,9 @@ With default settings, `a` will be sent on the first release, then `a` will be s
 With `TAPPING_FORCE_HOLD`, the second press will be interpreted as a Shift, allowing to use it as a modifier shortly after having used it as a tap.
 
 !> `TAPPING_FORCE_HOLD` will break anything that uses tapping toggles (Such as the `TT` layer keycode, and the One Shot Tapping Toggle).
+
+# Retro Tapping
+
+When you hold a dual function key, and haven't pressed anything when you release the key, normally nothing happens.  However, if you enable this, if you release the key without pressing another key, it will send the original key, even if it is outside of the tapping term. 
+
+For instance, if you're using `LT(2, KC_SPACE)`, if you hold the key, don't hit anything else and then release it, normally, nothing happens. But with `RETRO_TAPPING` defined in your `config.h`, it will send `KC_SPACE`. 

docs/feature_audio.md

@@ -3,6 +3,7 @@
 Your keyboard can make sounds! If you've got a Planck, Preonic, or basically any AVR keyboard that allows access to certain PWM-capable pins, you can hook up a simple speaker and make it beep. You can use those beeps to indicate layer transitions, modifiers, special keys, or just to play some funky 8bit tunes.
 
 Up to two simultaneous audio voices are supported, one driven by timer 1 and another driven by timer 3.  The following pins can be defined as audio outputs in config.h:
+
 Timer 1:
 `#define B5_AUDIO`
 `#define B6_AUDIO`
@@ -58,6 +59,13 @@ PLAY_LOOP(my_song);
 
 It's advised that you wrap all audio features in `#ifdef AUDIO_ENABLE` / `#endif` to avoid causing problems when audio isn't built into the keyboard.
 
+The available keycodes for audio are: 
+
+* `AU_ON` - Turn audio mode on
+* `AU_OFF` - Turn audio mode off
+* `AU_TOG` - Toggle audio mode
+
+
 ## Music Mode
 
 The music mode maps your columns to a chromatic scale, and your rows to octaves. This works best with ortholinear keyboards, but can be made to work with others. All keycodes less than `0xFF` get blocked, so you won't type while playing notes - if you have special keys/mods, those will still work. A work-around for this is to jump to a different layer with KC_NOs before (or after) enabling music mode.
@@ -145,6 +153,23 @@ You can configure the default, min and max frequencies, the stepping and built i
 
 This is still a WIP, but check out `quantum/keymap_midi.c` to see what's happening. Enable from the Makefile.
 
+
+## Audio Keycodes
+
+|Key             |Aliases  |Description                       |
+|----------------|---------|----------------------------------|
+|`AU_ON`         |         |Audio mode on                     |
+|`AU_OFF`        |         |Audio mode off                    |
+|`AU_TOG`        |         |Toggles Audio mode                |
+|`CLICKY_TOGGLE` |`CK_TOGG`|Toggles Audio clicky mode         |
+|`CLICKY_UP`     |`CK_UP`  |Increases frequency of the clicks |
+|`CLICKY_DOWN`   |`CK_DOWN`|Decreases frequency of the clicks |
+|`CLICKY_RESET`  |`CK_RST` |Resets frequency to default       |
+|`MU_ON`         |         |Turns on Music Mode               |
+|`MU_OFF`        |         |Turns off Music Mode              |
+|`MU_TOG`        |         |Toggles Music Mode                |
+|`MU_MOD`        |         |Cycles through the music modes    |
+
 <!-- FIXME: this formatting needs work
 
 ## Audio

docs/feature_hd44780.md

@@ -0,0 +1,56 @@
+# HD44780 LCD Displays
+
+This is an integration of Peter Fleury's LCD library. This page will explain the basics. [For in depth documentation visit his page.](http://homepage.hispeed.ch/peterfleury/doxygen/avr-gcc-libraries/group__pfleury__lcd.html)
+
+You can enable support for HD44780 Displays by setting the `HD44780_ENABLE` flag in your keyboards `rules.mk` to yes. This will use about 400 KB of extra space.
+
+## Configuration
+
+You will need to configure the pins used by your display and its number of lines and collumn in your keyboards `config.h`.
+
+Uncomment the section labled HD44780 and change the parameters as needed.
+````
+/*
+ * HD44780 LCD Display Configuration
+ */
+
+#define LCD_LINES           2     //< number of visible lines of the display
+#define LCD_DISP_LENGTH    16     //< visibles characters per line of the display
+#define LCD_IO_MODE      1            //< 0: memory mapped mode, 1: IO port mode
+#if LCD_IO_MODE
+#define LCD_PORT         PORTB        //< port for the LCD lines
+#define LCD_DATA0_PORT   LCD_PORT     //< port for 4bit data bit 0
+#define LCD_DATA1_PORT   LCD_PORT     //< port for 4bit data bit 1
+#define LCD_DATA2_PORT   LCD_PORT     //< port for 4bit data bit 2
+#define LCD_DATA3_PORT   LCD_PORT     //< port for 4bit data bit 3
+#define LCD_DATA0_PIN    4            //< pin for 4bit data bit 0
+#define LCD_DATA1_PIN    5            //< pin for 4bit data bit 1
+#define LCD_DATA2_PIN    6            //< pin for 4bit data bit 2 
+#define LCD_DATA3_PIN    7            //< pin for 4bit data bit 3
+#define LCD_RS_PORT      LCD_PORT     //< port for RS line        
+#define LCD_RS_PIN       3            //< pin  for RS line        
+#define LCD_RW_PORT      LCD_PORT     //< port for RW line        
+#define LCD_RW_PIN       2            //< pin  for RW line        
+#define LCD_E_PORT       LCD_PORT     //< port for Enable line     
+#define LCD_E_PIN        1            //< pin  for Enable line    
+#endif
+````
+
+Should you need to configure other properties you can copy them from `quantum/hd44780.h` and set them in your `config.h`
+
+## Usage 
+
+To initialize your display call lcd_init() with one of these parameters:
+````
+LCD_DISP_OFF             : display off
+LCD_DISP_ON              : display on, cursor off
+LCD_DISP_ON_CURSOR       : display on, cursor on
+LCD_DISP_ON_CURSOR_BLINK : display on, cursor on flashing 
+````
+This is best done in your keyboards `matrix_init_kb` or your keymaps `matrix_init_user`.  
+It is advised to clear the display before use.  
+To do so call `lcd_clrsrc()`.
+
+To now print something to your Display you first call `lcd_gotoxy(column, line)`. To go to the start of the first line you would call `lcd_gotoxy(0, 0)` and then print a string with `lcd_puts("example string")`.
+
+There are more posible methods to control the display. [For in depth documentation please visit the linked page.](http://homepage.hispeed.ch/peterfleury/doxygen/avr-gcc-libraries/group__pfleury__lcd.html)

docs/feature_userspace.md

@@ -31,6 +31,20 @@ The reason for this, is that `<name>.h` won't be added in time to add settings (
 
 So you should use the `config.h` for QMK settings, and the `<name>.h` file for user or keymap specific settings.
 
+`/users/<name>/rules.mk` will be included in the build _after_ the `rules.mk` from your keymap. This allows you to have features in your userspace `rules.mk` that depend on individual QMK features that may or may not be available on a specific keyboard. For example, if you have RGB control features shared between all your keyboards that support RGB lighting, you can `define RGB_ENABLE` in your keymap `rules.mk` and then check for the variable in your userspace `rules.mk` like this:
+```make
+ifdef RGB_ENABLE
+    # Include my fancy rgb functions source here
+endif
+```
+Because of this, any time you turn on QMK features in your `users/<name>/rules.mk`, you should conditionally enable them only if the flag isn't already defined, like this:
+```make
+ifndef TAP_DANCE_ENABLE
+    TAP_DANCE_ENABLE = yes
+endif
+```
+This will ensure that you can explicitly turn off features for an individual keymap.
+
 ## Readme
 
 Please include authorship (your name, github username, email), and optionally [a license that's GPL compatible](https://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses).
@@ -122,4 +136,4 @@ By default the userspace used will be the same as the keymap name. In some situa
 
 ```
 USER_NAME := mylayout
-```
+```

docs/features.md

@@ -9,6 +9,7 @@ QMK has a staggering number of features for building your keyboard. It can take
 * [Backlight](feature_backlight.md) - LED lighting support for your keyboard.
 * [Bootmagic](feature_bootmagic.md) - Adjust the behavior of your keyboard using hotkeys.
 * [Dynamic Macros](feature_dynamic_macros.md) - Record and playback macros from the keyboard itself.
+* [HD44780 LCD Display](feature_hd44780.md) - Support for LCD character displays using the HD44780 standard.
 * [Key Lock](feature_key_lock.md) - Lock a key in the "down" state.
 * [Layouts](feature_layouts.md) - Use one keymap with any keyboard that supports your layout.
 * [Leader Key](feature_leader_key.md) - Tap the leader key followed by a sequence to trigger custom behavior.

docs/getting_started_github.md

@@ -19,8 +19,7 @@ And be sure to select "HTTPS", and select the link and copy it:
 From here, enter `git clone ` into the command line, and then paste your link:
 
 ```
-**[terminal]
-**[prompt you@computer]**[path ~]**[delimiter  $ ]**[command git clone https://github.com/whoeveryouare/qmk_firmware.git]
+user@computer:~$ git clone https://github.com/whoeveryouare/qmk_firmware.git
 Cloning into 'qmk_firmware'...
 remote: Counting objects: 46625, done.
 remote: Compressing objects: 100% (2/2), done.
@@ -33,13 +32,12 @@ Checking out files: 100% (2799/2799), done.
 You now have your QMK fork on your local machine, and you can add your keymap, compile it and flash it to your board. Once you're happy with your changes, you can add, commit, and push them to your fork like this:
 
 ```
-**[terminal]
-**[prompt you@computer]**[path ~/qmk_firmware]**[delimiter  $ ]**[command git add .]
-**[prompt you@computer]**[path ~/qmk_firmware]**[delimiter  $ ]**[command git commit -m "adding my keymap"]
+user@computer:~$ git add .
+user@computer:~$ git commit -m "adding my keymap"
 [master cccb1608] adding my keymap
  1 file changed, 1 insertion(+)
  create mode 100644 keyboards/planck/keymaps/mine/keymap.c
-**[prompt you@computer]**[path ~/qmk_firmware]**[delimiter  $ ]**[command git push]
+user@computer:~$ git push
 Counting objects: 1, done.
 Delta compression using up to 4 threads.
 Compressing objects: 100% (1/1), done.

docs/getting_started_introduction.md

@@ -6,12 +6,16 @@ This page attempts to explain the basic information you need to know to work wit
 
 QMK is a fork of [Jun Wako](https://github.com/tmk)'s [tmk_keyboard](https://github.com/tmk/tmk_keyboard) project. The original TMK code, with modifications, can be found in the `tmk` folder. The QMK additions to the project may be found in the `quantum` folder. Keyboard projects may be found in the `handwired` and `keyboard` folders.
 
+### Userspace Structure
+
+Within the folder `users` is a directory for each user. This is a place for users to put code that they might use between keyboards. See the docs for [Userspace feature](feature_userspace.md) for more information.
+
 ### Keyboard Project Structure
 
 Within the folder `keyboards` and its subfolder `handwired` is a directory for each keyboard project, for example `qmk_firmware/keyboards/clueboard`. Within it you'll find the following structure:
 
 * `keymaps/`: Different keymaps that can be built
-* `rules.mk`: The file that sets the default "make" options. Do not edit this file directly, instead use a keymap specific `Makefile`
+* `rules.mk`: The file that sets the default "make" options. Do not edit this file directly, instead use a keymap specific `rules.mk`.
 * `config.h`: The file that sets the default compile time options. Do not edit this file directly, instead use a keymap specific `config.h`.
 
 ### Keymap Structure
@@ -25,23 +29,26 @@ In every keymap folder, the following files may be found. Only `keymap.c` is req
 
 # The `config.h` File
 
-There are 2 `config.h` locations:
+There are 3 possible `config.h` locations:
 
 * keyboard (`/keyboards/<keyboard>/config.h`)
+* userspace (`/users/<user>/config.h`)
 * keymap (`/keyboards/<keyboard>/keymaps/<keymap>/config.h`)
 
-If the keymap `config.h` exists, that file is included by the build system and the keyboard `config.h` is not included. If you wish to override settings in your keymap's `config.h` you will need to include some glue code:
+The build system automatically picks up the config files in the above order. If you wish to override any setting set by a previous `config.h` you will need to first include some boilerplate code for the settings you wish to change.
 
 ```
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "config_common.h"
+#pragma once
 ```
 
-If you want to override a setting from the parent `config.h` file, you need to `#undef` and then `#define` the setting again, like this:
+Then to override a setting from the previous `config.h` file you must `#undef` and then `#define` the setting again.
 
-```c
+The boilerplate code and setting look like this together:
+
+```
+#pragma once
+
+// overrides go here!
 #undef MY_SETTING
 #define MY_SETTING 4
 ```

docs/getting_started_make_guide.md

@@ -133,6 +133,10 @@ This consumes about 5390 bytes.
 
 This enables [key lock](feature_key_lock.md). This consumes an additional 260 bytes.
 
+`SPLIT_KEYBOARD`
+
+This enables split keyboard support (dual MCU like the let's split and bakingpy's boards) and includes all necessary files located at quantum/split_common
+
 ## Customizing Makefile Options on a Per-Keymap Basis
 
 If your keymap directory has a file called `rules.mk` any options you set in that file will take precedence over other `rules.mk` options for your particular keyboard.

docs/keycodes.md

@@ -191,27 +191,6 @@ This is a reference only. Each group of keys links to the page documenting their
 |`KC_NO`                |                    |Ignore this key (NOOP)                         |
 |`KC_TRANSPARENT`       |`KC_TRNS`           |Use the next lowest non-transparent key        |
 
-## [Mouse Keys](feature_mouse_keys.md)
-
-|Key             |Aliases  |Description                |
-|----------------|---------|---------------------------|
-|`KC_MS_UP`      |`KC_MS_U`|Mouse Cursor Up            |
-|`KC_MS_DOWN`    |`KC_MS_D`|Mouse Cursor Down          |
-|`KC_MS_LEFT`    |`KC_MS_L`|Mouse Cursor Left          |
-|`KC_MS_RIGHT`   |`KC_MS_R`|Mouse Cursor Right         |
-|`KC_MS_BTN1`    |`KC_BTN1`|Mouse Button 1             |
-|`KC_MS_BTN2`    |`KC_BTN2`|Mouse Button 2             |
-|`KC_MS_BTN3`    |`KC_BTN3`|Mouse Button 3             |
-|`KC_MS_BTN4`    |`KC_BTN4`|Mouse Button 4             |
-|`KC_MS_BTN5`    |`KC_BTN5`|Mouse Button 5             |
-|`KC_MS_WH_UP`   |`KC_WH_U`|Mouse Wheel Up             |
-|`KC_MS_WH_DOWN` |`KC_WH_D`|Mouse Wheel Down           |
-|`KC_MS_WH_LEFT` |`KC_WH_L`|Mouse Wheel Left           |
-|`KC_MS_WH_RIGHT`|`KC_WH_R`|Mouse Wheel Right          |
-|`KC_MS_ACCEL0`  |`KC_ACL0`|Set mouse acceleration to 0|
-|`KC_MS_ACCEL1`  |`KC_ACL1`|Set mouse acceleration to 1|
-|`KC_MS_ACCEL2`  |`KC_ACL2`|Set mouse acceleration to 2|
-
 ## [Quantum Keycodes](quantum_keycodes.md#qmk-keycodes)
 
 |Key          |Aliases    |Description                                                          |
@@ -227,6 +206,36 @@ This is a reference only. Each group of keys links to the page documenting their
 |`M(n)`       |           |Call macro `n`                                                       |
 |`MACROTAP(n)`|           |Macro-tap `n` idk FIXME                                              |
 
+## [Audio Keys](feature_audio.md)
+
+|Key             |Aliases  |Description                       |
+|----------------|---------|----------------------------------|
+|`AU_ON`         |         |Audio mode on                     |
+|`AU_OFF`        |         |Audio mode off                    |
+|`AU_TOG`        |         |Toggles Audio mode                |
+|`CLICKY_TOGGLE` |`CK_TOGG`|Toggles Audio clicky mode         |
+|`CLICKY_UP`     |`CK_UP`  |Increases frequency of the clicks |
+|`CLICKY_DOWN`   |`CK_DOWN`|Decreases frequency of the clicks |
+|`CLICKY_RESET`  |`CK_RST` |Resets frequency to default       |
+|`MU_ON`         |         |Turns on Music Mode               |
+|`MU_OFF`        |         |Turns off Music Mode              |
+|`MU_TOG`        |         |Toggles Music Mode                |
+|`MU_MOD`        |         |Cycles through the music modes    |
+
+
+
+## [Backlighting](feature_backlight.md)
+
+|Key      |Description                               |
+|---------|------------------------------------------|
+|`BL_TOGG`|Turn the backlight on or off              |
+|`BL_STEP`|Cycle through backlight levels            |
+|`BL_ON`  |Set the backlight to max brightness       |
+|`BL_OFF` |Turn the backlight off                    |
+|`BL_INC` |Increase the backlight level              |
+|`BL_DEC` |Decrease the backlight level              |
+|`BL_BRTG`|Toggle backlight breathing                |
+
 ## [Bootmagic](feature_bootmagic.md)
 
 |Key                               |Aliases  |Description                         |
@@ -251,17 +260,88 @@ This is a reference only. Each group of keys links to the page documenting their
 |`MAGIC_UNSWAP_ALT_GUI`            |`AG_NORM`|Unswap Alt and GUI on both sides    |
 |`MAGIC_TOGGLE_NKRO`               |         |Turn NKRO on or off                 |
 
-## [Backlighting](feature_backlight.md)
+## [Bluetooth](feature_bluetooth.md)
 
-|Key      |Description                               |
-|---------|------------------------------------------|
-|`BL_TOGG`|Turn the backlight on or off              |
-|`BL_STEP`|Cycle through backlight levels            |
-|`BL_ON`  |Set the backlight to max brightness       |
-|`BL_OFF` |Turn the backlight off                    |
-|`BL_INC` |Increase the backlight level              |
-|`BL_DEC` |Decrease the backlight level              |
-|`BL_BRTG`|Toggle backlight breathing                |
+|Key       |Description                                   |
+|----------|----------------------------------------------|
+|`OUT_AUTO`|Automatically switch between USB and Bluetooth|
+|`OUT_USB` |USB only                                      |
+|`OUT_BT`  |Bluetooth only                                |
+
+
+## [Layer Switching](feature_advanced_keycodes.md# Switching and Toggling Layers)
+
+|Key         |Description                                                               |
+|-----------------|---------------------------------------------------------------------|
+|`DF(layer)`      |Switches the default layer                                           |
+|`MO(layer)`      |Momentarily activates layer, switches off when you let go            |
+|`LM(layer, mod)` |As `MO(layer)` but with `mod` active                                 |
+|`LT(layer, kc)`  |Momentarily activates layer if held, sends kc if tapped              |
+|`TG(layer)`      |Toggles the layer (enables it if no active, and vise versa)          |
+|`TO(layer)`      |Activates layer and deactivates all other layers                     |
+|`TT(layer)`      |Momentarily activates layer if held, toggles it if tapped repeatedly |
+
+## [Mouse Keys](feature_mouse_keys.md)
+
+|Key             |Aliases  |Description                |
+|----------------|---------|---------------------------|
+|`KC_MS_UP`      |`KC_MS_U`|Mouse Cursor Up            |
+|`KC_MS_DOWN`    |`KC_MS_D`|Mouse Cursor Down          |
+|`KC_MS_LEFT`    |`KC_MS_L`|Mouse Cursor Left          |
+|`KC_MS_RIGHT`   |`KC_MS_R`|Mouse Cursor Right         |
+|`KC_MS_BTN1`    |`KC_BTN1`|Mouse Button 1             |
+|`KC_MS_BTN2`    |`KC_BTN2`|Mouse Button 2             |
+|`KC_MS_BTN3`    |`KC_BTN3`|Mouse Button 3             |
+|`KC_MS_BTN4`    |`KC_BTN4`|Mouse Button 4             |
+|`KC_MS_BTN5`    |`KC_BTN5`|Mouse Button 5             |
+|`KC_MS_WH_UP`   |`KC_WH_U`|Mouse Wheel Up             |
+|`KC_MS_WH_DOWN` |`KC_WH_D`|Mouse Wheel Down           |
+|`KC_MS_WH_LEFT` |`KC_WH_L`|Mouse Wheel Left           |
+|`KC_MS_WH_RIGHT`|`KC_WH_R`|Mouse Wheel Right          |
+|`KC_MS_ACCEL0`  |`KC_ACL0`|Set mouse acceleration to 0|
+|`KC_MS_ACCEL1`  |`KC_ACL1`|Set mouse acceleration to 1|
+|`KC_MS_ACCEL2`  |`KC_ACL2`|Set mouse acceleration to 2|
+
+## [Modifiers](feature_advanced_keycodes.md#modifier-keys)
+
+|Key       |Aliases               |Description                                         |
+|----------|----------            |----------------------------------------------------|
+|`KC_HYPR` |                      |Hold Left Control, Shift, Alt and GUI               |
+|`KC_MEH`  |                      |Hold Left Control, Shift and Alt                    |
+|`LCTL(kc)`|                      |Hold Left Control and press `kc`                    |
+|`LSFT(kc)`|`S(kc)`               |Hold Left Shift and press `kc`                      |
+|`LALT(kc)`|                      |Hold Left Alt and press `kc`                        |
+|`LGUI(kc)`|`LCMD(kc)`, `LWIN(kc)`|Hold Left GUI and press `kc`                        |
+|`RCTL(kc)`|                      |Hold Right Control and press `kc`                   |
+|`RSFT(kc)`|                      |Hold Right Shift and press `kc`                     |
+|`RALT(kc)`|                      |Hold Right Alt and press `kc`                       |
+|`RGUI(kc)`|`RCMD(kc)`, `LWIN(kc)`|Hold Right GUI and press `kc`                       |
+|`HYPR(kc)`|                      |Hold Left Control, Shift, Alt and GUI and press `kc`|
+|`MEH(kc)` |                      |Hold Left Control, Shift and Alt and press `kc`     |
+|`LCAG(kc)`|                      |Hold Left Control, Alt and GUI and press `kc`       |
+|`ALTG(kc)`|                      |Hold Right Control and Alt and press `kc`           |
+|`SGUI(kc)`|`SCMD(kc)`, `SWIN(kc)`|Hold Left Shift and GUI and press `kc`              |
+|`LCA(kc)` |                      |Hold Left Control and Alt and press `kc`            |
+
+## [Mod-Tap Keys](feature_advanced_keycodes.md#mod-tap)
+
+|Key         |Aliases                                |Description                                            |
+|------------|---------------------------------------|-------------------------------------------------------|
+|`LCTL_T(kc)`|`CTL_T(kc)`                            |Left Control when held, `kc` when tapped               |
+|`RCTL_T(kc)`|                                       |Right Control when held, `kc` when tapped              |
+|`LSFT_T(kc)`|`SFT_T(kc)`                            |Left Shift when held, `kc` when tapped                 |
+|`RSFT_T(kc)`|                                       |Right Shift when held, `kc` when tapped                |
+|`LALT_T(kc)`|`ALT_T(kc)`                            |Left Alt when held, `kc` when tapped                   |
+|`RALT_T(kc)`|`ALGR_T(kc)`                           |Right Alt when held, `kc` when tapped                  |
+|`LGUI_T(kc)`|`LCMD_T(kc)`, `RWIN_T(kc)`, `GUI_T(kc)`|Left GUI when held, `kc` when tapped                   |
+|`RGUI_T(kc)`|`RCMD_T(kc)`, `RWIN_T(kc)`             |Right GUI when held, `kc` when tapped                  |
+|`C_S_T(kc)` |                                       |Left Control and Shift when held, `kc` when tapped     |
+|`MEH_T(kc)` |                                       |Left Control, Shift and Alt when held, `kc` when tapped|
+|`LCAG_T(kc)`|                                       |Left Control, Alt and GUI when held, `kc` when tapped  |
+|`RCAG_T(kc)`|                                       |Right Control, Alt and GUI when held, `kc` when tapped |
+|`ALL_T(kc)` |                                       |Left Control, Shift, Alt and GUI when held, `kc` when tapped - more info [here](http://brettterpstra.com/2012/12/08/a-useful-caps-lock-key/)|
+|`SCMD_T(kc)`|`SWIN_T(kc)`                           |Left Shift and GUI when held, `kc` when tapped         |
+|`LCA_T(kc)` |                                       |Left Control and Alt when held, `kc` when tapped       |
 
 ## [RGB Lighting](feature_rgblight.md)
 
@@ -309,55 +389,6 @@ This is a reference only. Each group of keys links to the page documenting their
 |`PRINT_ON` |Start printing everything the user types|
 |`PRINT_OFF`|Stop printing everything the user types |
 
-## [Bluetooth](feature_bluetooth.md)
-
-|Key       |Description                                   |
-|----------|----------------------------------------------|
-|`OUT_AUTO`|Automatically switch between USB and Bluetooth|
-|`OUT_USB` |USB only                                      |
-|`OUT_BT`  |Bluetooth only                                |
-
-## [Modifiers](quantum_keycodes.md#modifiers)
-
-|Key       |Aliases               |Description                                         |
-|----------|----------            |----------------------------------------------------|
-|`KC_HYPR` |                      |Hold Left Control, Shift, Alt and GUI               |
-|`KC_MEH`  |                      |Hold Left Control, Shift and Alt                    |
-|`LCTL(kc)`|                      |Hold Left Control and press `kc`                    |
-|`LSFT(kc)`|`S(kc)`               |Hold Left Shift and press `kc`                      |
-|`LALT(kc)`|                      |Hold Left Alt and press `kc`                        |
-|`LGUI(kc)`|`LCMD(kc)`, `LWIN(kc)`|Hold Left GUI and press `kc`                        |
-|`RCTL(kc)`|                      |Hold Right Control and press `kc`                   |
-|`RSFT(kc)`|                      |Hold Right Shift and press `kc`                     |
-|`RALT(kc)`|                      |Hold Right Alt and press `kc`                       |
-|`RGUI(kc)`|`RCMD(kc)`, `LWIN(kc)`|Hold Right GUI and press `kc`                       |
-|`HYPR(kc)`|                      |Hold Left Control, Shift, Alt and GUI and press `kc`|
-|`MEH(kc)` |                      |Hold Left Control, Shift and Alt and press `kc`     |
-|`LCAG(kc)`|                      |Hold Left Control, Alt and GUI and press `kc`       |
-|`ALTG(kc)`|                      |Hold Right Control and Alt and press `kc`           |
-|`SGUI(kc)`|`SCMD(kc)`, `SWIN(kc)`|Hold Left Shift and GUI and press `kc`              |
-|`LCA(kc)` |                      |Hold Left Control and Alt and press `kc`            |
-
-## [Mod-Tap Keys](quantum_keycodes.md#mod-tap-keys)
-
-|Key         |Aliases                                |Description                                            |
-|------------|---------------------------------------|-------------------------------------------------------|
-|`LCTL_T(kc)`|`CTL_T(kc)`                            |Left Control when held, `kc` when tapped               |
-|`RCTL_T(kc)`|                                       |Right Control when held, `kc` when tapped              |
-|`LSFT_T(kc)`|`SFT_T(kc)`                            |Left Shift when held, `kc` when tapped                 |
-|`RSFT_T(kc)`|                                       |Right Shift when held, `kc` when tapped                |
-|`LALT_T(kc)`|`ALT_T(kc)`                            |Left Alt when held, `kc` when tapped                   |
-|`RALT_T(kc)`|`ALGR_T(kc)`                           |Right Alt when held, `kc` when tapped                  |
-|`LGUI_T(kc)`|`LCMD_T(kc)`, `RWIN_T(kc)`, `GUI_T(kc)`|Left GUI when held, `kc` when tapped                   |
-|`RGUI_T(kc)`|`RCMD_T(kc)`, `RWIN_T(kc)`             |Right GUI when held, `kc` when tapped                  |
-|`C_S_T(kc)` |                                       |Left Control and Shift when held, `kc` when tapped     |
-|`MEH_T(kc)` |                                       |Left Control, Shift and Alt when held, `kc` when tapped|
-|`LCAG_T(kc)`|                                       |Left Control, Alt and GUI when held, `kc` when tapped  |
-|`RCAG_T(kc)`|                                       |Right Control, Alt and GUI when held, `kc` when tapped |
-|`ALL_T(kc)` |                                       |Left Control, Shift, Alt and GUI when held, `kc` when tapped - more info [here](http://brettterpstra.com/2012/12/08/a-useful-caps-lock-key/)|
-|`SCMD_T(kc)`|`SWIN_T(kc)`                           |Left Shift and GUI when held, `kc` when tapped         |
-|`LCA_T(kc)` |                                       |Left Control and Alt when held, `kc` when tapped       |
-
 ## [US ANSI Shifted Keys](keycodes_us_ansi_shifted.md)
 
 |Key                     |Aliases           |Description        |
@@ -396,19 +427,13 @@ This is a reference only. Each group of keys links to the page documenting their
 |`TT(layer)`     |Normally acts like MO unless it's tapped multiple times, which toggles `layer` on |
 |`LM(layer, mod)`|Momentarily turn on `layer` (like MO) with `mod` active as well.                  |
 
-## [One Shot Keys](quantum_keycodes.md#one-shot-keys)
+## [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys)
 
 |Key         |Description                       |
 |------------|----------------------------------|
 |`OSM(mod)`  |Hold `mod` for one keypress       |
 |`OSL(layer)`|Switch to `layer` for one keypress|
 
-## [Unicode Support](feature_unicode.md)
-
-|Key         |Aliases|                                                 |
-|------------|-------|-------------------------------------------------|
-|`UNICODE(n)`|`UC(n)`|Send Unicode character `n`                       |
-|`X(n)`      |       |Send Unicode character `n` via a different method|
 
 ## [Swap Hands](feature_swap_hands.md)
 
@@ -421,3 +446,9 @@ This is a reference only. Each group of keys links to the page documenting their
 |`SH_MOFF`  |Momentarily turns off swap.                                              |
 |`SH_TG`    |Toggles swap on and off with every key press.                            |
 |`SH_TT`    |Toggles with a tap; momentary when held.                                 |
+## [Unicode Support](feature_unicode.md)
+
+|Key         |Aliases|                                                 |
+|------------|-------|-------------------------------------------------|
+|`UNICODE(n)`|`UC(n)`|Send Unicode character `n`                       |
+|`X(n)`      |       |Send Unicode character `n` via a different method|

docs/newbs.md

@@ -1,4 +1,4 @@
-# The Compelete Newbs Guide To QMK
+# The Complete Newbs Guide To QMK
 
 QMK is a powerful Open Source firmware for your mechanical keyboard. You can use QMK to customize your keyboard in ways both simple and powerful. People of all skill levels, from complete newbie to master programmer, have successfully used QMK to customize their keyboard. This guide will help you do the same, no matter your skill level.
 
@@ -12,5 +12,7 @@ There are 4 main sections to this guide:
 * [Building Your First Firmware](newbs_building_firmware.md)
 * [Flashing Firmware](newbs_flashing.md)
 * [Testing and Debugging](newbs_testing_debugging.md)
+* [Learn More with these Resources](newbs_learn_more_resources.md)
 
 This guide is focused on helping someone who has never compiled software before. It makes choices and recommendations based on that viewpoint. There are alternative methods for many of these procedures, and we support most of those alternatives. If you have any doubt about how to accomplish a task you can [ask us for guidance](getting_started_getting_help.md).
+

docs/newbs_learn_more_resources.md

@@ -0,0 +1,13 @@
+# Learning Resources
+These resources are aimed at giving new members in the qmk community more understanding to the information provided in the newbs docs.
+
+Git resources:
+*
+*[Great General Tutorial](https://www.codecademy.com/learn/learn-git)
+*[Git Game To Learn From Examples](https://learngitbranching.js.org/)
+*[Git Resources to Learn More About Github](getting_started_github.md)
+*[Git Resources Aimed Specificly toward QMK](contributing.md)
+
+
+Command Line resources:
+*[Good General Tutorial on Command Line](https://www.codecademy.com/learn/learn-the-command-line)

drivers/avr/hd44780.c

@@ -0,0 +1,592 @@
+/****************************************************************************
+ Title:     HD44780U LCD library
+ Author:    Peter Fleury <pfleury@gmx.ch>  http://tinyurl.com/peterfleury
+ License:   GNU General Public License Version 3
+ File:	    $Id: lcd.c,v 1.15.2.2 2015/01/17 12:16:05 peter Exp $
+ Software:  AVR-GCC 3.3 
+ Target:    any AVR device, memory mapped mode only for AT90S4414/8515/Mega
+
+ DESCRIPTION
+       Basic routines for interfacing a HD44780U-based text lcd display
+
+       Originally based on Volker Oth's lcd library,
+       changed lcd_init(), added additional constants for lcd_command(),
+       added 4-bit I/O mode, improved and optimized code.
+
+       Library can be operated in memory mapped mode (LCD_IO_MODE=0) or in 
+       4-bit IO port mode (LCD_IO_MODE=1). 8-bit IO port mode not supported.
+       
+       Memory mapped mode compatible with Kanda STK200, but supports also
+       generation of R/W signal through A8 address line.
+
+ USAGE
+       See the C include lcd.h file for a description of each function
+       
+*****************************************************************************/
+#include <inttypes.h>
+#include <avr/io.h>
+#include <avr/pgmspace.h>
+#include <util/delay.h>
+#include "hd44780.h"
+
+/* 
+** constants/macros 
+*/
+#define DDR(x) (*(&x - 1))      /* address of data direction register of port x */
+#if defined(__AVR_ATmega64__) || defined(__AVR_ATmega128__)
+    /* on ATmega64/128 PINF is on port 0x00 and not 0x60 */
+    #define PIN(x) ( &PORTF==&(x) ? _SFR_IO8(0x00) : (*(&x - 2)) )
+#else
+	#define PIN(x) (*(&x - 2))    /* address of input register of port x          */
+#endif
+
+
+#if LCD_IO_MODE
+#define lcd_e_delay()   _delay_us(LCD_DELAY_ENABLE_PULSE)
+#define lcd_e_high()    LCD_E_PORT  |=  _BV(LCD_E_PIN);
+#define lcd_e_low()     LCD_E_PORT  &= ~_BV(LCD_E_PIN);
+#define lcd_e_toggle()  toggle_e()
+#define lcd_rw_high()   LCD_RW_PORT |=  _BV(LCD_RW_PIN)
+#define lcd_rw_low()    LCD_RW_PORT &= ~_BV(LCD_RW_PIN)
+#define lcd_rs_high()   LCD_RS_PORT |=  _BV(LCD_RS_PIN)
+#define lcd_rs_low()    LCD_RS_PORT &= ~_BV(LCD_RS_PIN)
+#endif
+
+#if LCD_IO_MODE
+#if LCD_LINES==1
+#define LCD_FUNCTION_DEFAULT    LCD_FUNCTION_4BIT_1LINE 
+#else
+#define LCD_FUNCTION_DEFAULT    LCD_FUNCTION_4BIT_2LINES 
+#endif
+#else
+#if LCD_LINES==1
+#define LCD_FUNCTION_DEFAULT    LCD_FUNCTION_8BIT_1LINE
+#else
+#define LCD_FUNCTION_DEFAULT    LCD_FUNCTION_8BIT_2LINES
+#endif
+#endif
+
+#if LCD_CONTROLLER_KS0073
+#if LCD_LINES==4
+
+#define KS0073_EXTENDED_FUNCTION_REGISTER_ON  0x2C   /* |0|010|1100 4-bit mode, extension-bit RE = 1 */
+#define KS0073_EXTENDED_FUNCTION_REGISTER_OFF 0x28   /* |0|010|1000 4-bit mode, extension-bit RE = 0 */
+#define KS0073_4LINES_MODE                    0x09   /* |0|000|1001 4 lines mode */
+
+#endif
+#endif
+
+/* 
+** function prototypes 
+*/
+#if LCD_IO_MODE
+static void toggle_e(void);
+#endif
+
+/*
+** local functions
+*/
+
+
+/************************************************************************* 
+delay for a minimum of <us> microseconds
+the number of loops is calculated at compile-time from MCU clock frequency
+*************************************************************************/
+#define delay(us)  _delay_us(us) 
+
+
+#if LCD_IO_MODE
+/* toggle Enable Pin to initiate write */
+static void toggle_e(void)
+{
+    lcd_e_high();
+    lcd_e_delay();
+    lcd_e_low();
+}
+#endif
+
+
+/*************************************************************************
+Low-level function to write byte to LCD controller
+Input:    data   byte to write to LCD
+          rs     1: write data    
+                 0: write instruction
+Returns:  none
+*************************************************************************/
+#if LCD_IO_MODE
+static void lcd_write(uint8_t data,uint8_t rs) 
+{
+    unsigned char dataBits ;
+
+
+    if (rs) {        /* write data        (RS=1, RW=0) */
+       lcd_rs_high();
+    } else {         /* write instruction (RS=0, RW=0) */
+       lcd_rs_low();
+    }
+    lcd_rw_low();    /* RW=0  write mode      */
+
+    if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
+      && (LCD_DATA0_PIN == 0) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )
+    {
+        /* configure data pins as output */
+        DDR(LCD_DATA0_PORT) |= 0x0F;
+
+        /* output high nibble first */
+        dataBits = LCD_DATA0_PORT & 0xF0;
+        LCD_DATA0_PORT = dataBits |((data>>4)&0x0F);
+        lcd_e_toggle();
+
+        /* output low nibble */
+        LCD_DATA0_PORT = dataBits | (data&0x0F);
+        lcd_e_toggle();
+
+        /* all data pins high (inactive) */
+        LCD_DATA0_PORT = dataBits | 0x0F;
+    }
+    else
+    {
+        /* configure data pins as output */
+        DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN);
+        DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN);
+        DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN);
+        DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN);
+        
+        /* output high nibble first */
+        LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);
+        LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);
+        LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);
+        LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);
+    	if(data & 0x80) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
+    	if(data & 0x40) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
+    	if(data & 0x20) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
+    	if(data & 0x10) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);   
+        lcd_e_toggle();
+        
+        /* output low nibble */
+        LCD_DATA3_PORT &= ~_BV(LCD_DATA3_PIN);
+        LCD_DATA2_PORT &= ~_BV(LCD_DATA2_PIN);
+        LCD_DATA1_PORT &= ~_BV(LCD_DATA1_PIN);
+        LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);
+    	if(data & 0x08) LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
+    	if(data & 0x04) LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
+    	if(data & 0x02) LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
+    	if(data & 0x01) LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);
+        lcd_e_toggle();        
+        
+        /* all data pins high (inactive) */
+        LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);
+        LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);
+        LCD_DATA2_PORT |= _BV(LCD_DATA2_PIN);
+        LCD_DATA3_PORT |= _BV(LCD_DATA3_PIN);
+    }
+}
+#else
+#define lcd_write(d,rs) if (rs) *(volatile uint8_t*)(LCD_IO_DATA) = d; else *(volatile uint8_t*)(LCD_IO_FUNCTION) = d;
+/* rs==0 -> write instruction to LCD_IO_FUNCTION */
+/* rs==1 -> write data to LCD_IO_DATA */
+#endif
+
+
+/*************************************************************************
+Low-level function to read byte from LCD controller
+Input:    rs     1: read data    
+                 0: read busy flag / address counter
+Returns:  byte read from LCD controller
+*************************************************************************/
+#if LCD_IO_MODE
+static uint8_t lcd_read(uint8_t rs) 
+{
+    uint8_t data;
+    
+    
+    if (rs)
+        lcd_rs_high();                       /* RS=1: read data      */
+    else
+        lcd_rs_low();                        /* RS=0: read busy flag */
+    lcd_rw_high();                           /* RW=1  read mode      */
+    
+    if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
+      && ( LCD_DATA0_PIN == 0 )&& (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )
+    {
+        DDR(LCD_DATA0_PORT) &= 0xF0;         /* configure data pins as input */
+        
+        lcd_e_high();
+        lcd_e_delay();        
+        data = PIN(LCD_DATA0_PORT) << 4;     /* read high nibble first */
+        lcd_e_low();
+        
+        lcd_e_delay();                       /* Enable 500ns low       */
+        
+        lcd_e_high();
+        lcd_e_delay();
+        data |= PIN(LCD_DATA0_PORT)&0x0F;    /* read low nibble        */
+        lcd_e_low();
+    }
+    else
+    {
+        /* configure data pins as input */
+        DDR(LCD_DATA0_PORT) &= ~_BV(LCD_DATA0_PIN);
+        DDR(LCD_DATA1_PORT) &= ~_BV(LCD_DATA1_PIN);
+        DDR(LCD_DATA2_PORT) &= ~_BV(LCD_DATA2_PIN);
+        DDR(LCD_DATA3_PORT) &= ~_BV(LCD_DATA3_PIN);
+                
+        /* read high nibble first */
+        lcd_e_high();
+        lcd_e_delay();        
+        data = 0;
+        if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x10;
+        if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x20;
+        if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x40;
+        if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x80;
+        lcd_e_low();
+
+        lcd_e_delay();                       /* Enable 500ns low       */
+    
+        /* read low nibble */    
+        lcd_e_high();
+        lcd_e_delay();
+        if ( PIN(LCD_DATA0_PORT) & _BV(LCD_DATA0_PIN) ) data |= 0x01;
+        if ( PIN(LCD_DATA1_PORT) & _BV(LCD_DATA1_PIN) ) data |= 0x02;
+        if ( PIN(LCD_DATA2_PORT) & _BV(LCD_DATA2_PIN) ) data |= 0x04;
+        if ( PIN(LCD_DATA3_PORT) & _BV(LCD_DATA3_PIN) ) data |= 0x08;        
+        lcd_e_low();
+    }
+    return data;
+}
+#else
+#define lcd_read(rs) (rs) ? *(volatile uint8_t*)(LCD_IO_DATA+LCD_IO_READ) : *(volatile uint8_t*)(LCD_IO_FUNCTION+LCD_IO_READ)
+/* rs==0 -> read instruction from LCD_IO_FUNCTION */
+/* rs==1 -> read data from LCD_IO_DATA */
+#endif
+
+
+/*************************************************************************
+loops while lcd is busy, returns address counter
+*************************************************************************/
+static uint8_t lcd_waitbusy(void)
+
+{
+    register uint8_t c;
+    
+    /* wait until busy flag is cleared */
+    while ( (c=lcd_read(0)) & (1<<LCD_BUSY)) {}
+    
+    /* the address counter is updated 4us after the busy flag is cleared */
+    delay(LCD_DELAY_BUSY_FLAG);
+
+    /* now read the address counter */
+    return (lcd_read(0));  // return address counter
+    
+}/* lcd_waitbusy */
+
+
+/*************************************************************************
+Move cursor to the start of next line or to the first line if the cursor 
+is already on the last line.
+*************************************************************************/
+static inline void lcd_newline(uint8_t pos)
+{
+    register uint8_t addressCounter;
+
+
+#if LCD_LINES==1
+    addressCounter = 0;
+#endif
+#if LCD_LINES==2
+    if ( pos < (LCD_START_LINE2) )
+        addressCounter = LCD_START_LINE2;
+    else
+        addressCounter = LCD_START_LINE1;
+#endif
+#if LCD_LINES==4
+#if KS0073_4LINES_MODE
+    if ( pos < LCD_START_LINE2 )
+        addressCounter = LCD_START_LINE2;
+    else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE3) )
+        addressCounter = LCD_START_LINE3;
+    else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE4) )
+        addressCounter = LCD_START_LINE4;
+    else 
+        addressCounter = LCD_START_LINE1;
+#else
+    if ( pos < LCD_START_LINE3 )
+        addressCounter = LCD_START_LINE2;
+    else if ( (pos >= LCD_START_LINE2) && (pos < LCD_START_LINE4) )
+        addressCounter = LCD_START_LINE3;
+    else if ( (pos >= LCD_START_LINE3) && (pos < LCD_START_LINE2) )
+        addressCounter = LCD_START_LINE4;
+    else 
+        addressCounter = LCD_START_LINE1;
+#endif
+#endif
+    lcd_command((1<<LCD_DDRAM)+addressCounter);
+
+}/* lcd_newline */
+
+
+/*
+** PUBLIC FUNCTIONS 
+*/
+
+/*************************************************************************
+Send LCD controller instruction command
+Input:   instruction to send to LCD controller, see HD44780 data sheet
+Returns: none
+*************************************************************************/
+void lcd_command(uint8_t cmd)
+{
+    lcd_waitbusy();
+    lcd_write(cmd,0);
+}
+
+
+/*************************************************************************
+Send data byte to LCD controller 
+Input:   data to send to LCD controller, see HD44780 data sheet
+Returns: none
+*************************************************************************/
+void lcd_data(uint8_t data)
+{
+    lcd_waitbusy();
+    lcd_write(data,1);
+}
+
+
+
+/*************************************************************************
+Set cursor to specified position
+Input:    x  horizontal position  (0: left most position)
+          y  vertical position    (0: first line)
+Returns:  none
+*************************************************************************/
+void lcd_gotoxy(uint8_t x, uint8_t y)
+{
+#if LCD_LINES==1
+    lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+#endif
+#if LCD_LINES==2
+    if ( y==0 ) 
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+    else
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
+#endif
+#if LCD_LINES==4
+    if ( y==0 )
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE1+x);
+    else if ( y==1)
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE2+x);
+    else if ( y==2)
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE3+x);
+    else /* y==3 */
+        lcd_command((1<<LCD_DDRAM)+LCD_START_LINE4+x);
+#endif
+
+}/* lcd_gotoxy */
+
+
+/*************************************************************************
+*************************************************************************/
+int lcd_getxy(void)
+{
+    return lcd_waitbusy();
+}
+
+
+/*************************************************************************
+Clear display and set cursor to home position
+*************************************************************************/
+void lcd_clrscr(void)
+{
+    lcd_command(1<<LCD_CLR);
+}
+
+
+/*************************************************************************
+Set cursor to home position
+*************************************************************************/
+void lcd_home(void)
+{
+    lcd_command(1<<LCD_HOME);
+}
+
+
+/*************************************************************************
+Display character at current cursor position 
+Input:    character to be displayed                                       
+Returns:  none
+*************************************************************************/
+void lcd_putc(char c)
+{
+    uint8_t pos;
+
+
+    pos = lcd_waitbusy();   // read busy-flag and address counter
+    if (c=='\n')
+    {
+        lcd_newline(pos);
+    }
+    else
+    {
+#if LCD_WRAP_LINES==1
+#if LCD_LINES==1
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#elif LCD_LINES==2
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);    
+        }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ){
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#elif LCD_LINES==4
+        if ( pos == LCD_START_LINE1+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE2,0);    
+        }else if ( pos == LCD_START_LINE2+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE3,0);
+        }else if ( pos == LCD_START_LINE3+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE4,0);
+        }else if ( pos == LCD_START_LINE4+LCD_DISP_LENGTH ) {
+            lcd_write((1<<LCD_DDRAM)+LCD_START_LINE1,0);
+        }
+#endif
+        lcd_waitbusy();
+#endif
+        lcd_write(c, 1);
+    }
+
+}/* lcd_putc */
+
+
+/*************************************************************************
+Display string without auto linefeed 
+Input:    string to be displayed
+Returns:  none
+*************************************************************************/
+void lcd_puts(const char *s)
+/* print string on lcd (no auto linefeed) */
+{
+    register char c;
+
+    while ( (c = *s++) ) {
+        lcd_putc(c);
+    }
+
+}/* lcd_puts */
+
+
+/*************************************************************************
+Display string from program memory without auto linefeed 
+Input:     string from program memory be be displayed                                        
+Returns:   none
+*************************************************************************/
+void lcd_puts_p(const char *progmem_s)
+/* print string from program memory on lcd (no auto linefeed) */
+{
+    register char c;
+
+    while ( (c = pgm_read_byte(progmem_s++)) ) {
+        lcd_putc(c);
+    }
+
+}/* lcd_puts_p */
+
+
+/*************************************************************************
+Initialize display and select type of cursor 
+Input:    dispAttr LCD_DISP_OFF            display off
+                   LCD_DISP_ON             display on, cursor off
+                   LCD_DISP_ON_CURSOR      display on, cursor on
+                   LCD_DISP_CURSOR_BLINK   display on, cursor on flashing
+Returns:  none
+*************************************************************************/
+void lcd_init(uint8_t dispAttr)
+{
+#if LCD_IO_MODE
+    /*
+     *  Initialize LCD to 4 bit I/O mode
+     */
+     
+    if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
+      && ( &LCD_RS_PORT == &LCD_DATA0_PORT) && ( &LCD_RW_PORT == &LCD_DATA0_PORT) && (&LCD_E_PORT == &LCD_DATA0_PORT)
+      && (LCD_DATA0_PIN == 0 ) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) 
+      && (LCD_RS_PIN == 4 ) && (LCD_RW_PIN == 5) && (LCD_E_PIN == 6 ) )
+    {
+        /* configure all port bits as output (all LCD lines on same port) */
+        DDR(LCD_DATA0_PORT) |= 0x7F;
+    }
+    else if ( ( &LCD_DATA0_PORT == &LCD_DATA1_PORT) && ( &LCD_DATA1_PORT == &LCD_DATA2_PORT ) && ( &LCD_DATA2_PORT == &LCD_DATA3_PORT )
+           && (LCD_DATA0_PIN == 0 ) && (LCD_DATA1_PIN == 1) && (LCD_DATA2_PIN == 2) && (LCD_DATA3_PIN == 3) )
+    {
+        /* configure all port bits as output (all LCD data lines on same port, but control lines on different ports) */
+        DDR(LCD_DATA0_PORT) |= 0x0F;
+        DDR(LCD_RS_PORT)    |= _BV(LCD_RS_PIN);
+        DDR(LCD_RW_PORT)    |= _BV(LCD_RW_PIN);
+        DDR(LCD_E_PORT)     |= _BV(LCD_E_PIN);
+    }
+    else
+    {
+        /* configure all port bits as output (LCD data and control lines on different ports */
+        DDR(LCD_RS_PORT)    |= _BV(LCD_RS_PIN);
+        DDR(LCD_RW_PORT)    |= _BV(LCD_RW_PIN);
+        DDR(LCD_E_PORT)     |= _BV(LCD_E_PIN);
+        DDR(LCD_DATA0_PORT) |= _BV(LCD_DATA0_PIN);
+        DDR(LCD_DATA1_PORT) |= _BV(LCD_DATA1_PIN);
+        DDR(LCD_DATA2_PORT) |= _BV(LCD_DATA2_PIN);
+        DDR(LCD_DATA3_PORT) |= _BV(LCD_DATA3_PIN);
+    }
+    delay(LCD_DELAY_BOOTUP);             /* wait 16ms or more after power-on       */
+    
+    /* initial write to lcd is 8bit */
+    LCD_DATA1_PORT |= _BV(LCD_DATA1_PIN);    // LCD_FUNCTION>>4;
+    LCD_DATA0_PORT |= _BV(LCD_DATA0_PIN);    // LCD_FUNCTION_8BIT>>4;
+    lcd_e_toggle();
+    delay(LCD_DELAY_INIT);               /* delay, busy flag can't be checked here */
+   
+    /* repeat last command */ 
+    lcd_e_toggle();      
+    delay(LCD_DELAY_INIT_REP);           /* delay, busy flag can't be checked here */
+    
+    /* repeat last command a third time */
+    lcd_e_toggle();      
+    delay(LCD_DELAY_INIT_REP);           /* delay, busy flag can't be checked here */
+
+    /* now configure for 4bit mode */
+    LCD_DATA0_PORT &= ~_BV(LCD_DATA0_PIN);   // LCD_FUNCTION_4BIT_1LINE>>4
+    lcd_e_toggle();
+    delay(LCD_DELAY_INIT_4BIT);          /* some displays need this additional delay */
+    
+    /* from now the LCD only accepts 4 bit I/O, we can use lcd_command() */    
+#else
+    /*
+     * Initialize LCD to 8 bit memory mapped mode
+     */
+    
+    /* enable external SRAM (memory mapped lcd) and one wait state */        
+    MCUCR = _BV(SRE) | _BV(SRW);
+
+    /* reset LCD */
+    delay(LCD_DELAY_BOOTUP);                    /* wait 16ms after power-on     */
+    lcd_write(LCD_FUNCTION_8BIT_1LINE,0);   /* function set: 8bit interface */                   
+    delay(LCD_DELAY_INIT);                      /* wait 5ms                     */
+    lcd_write(LCD_FUNCTION_8BIT_1LINE,0);   /* function set: 8bit interface */                 
+    delay(LCD_DELAY_INIT_REP);                  /* wait 64us                    */
+    lcd_write(LCD_FUNCTION_8BIT_1LINE,0);   /* function set: 8bit interface */                
+    delay(LCD_DELAY_INIT_REP);                  /* wait 64us                    */
+#endif
+
+#if KS0073_4LINES_MODE
+    /* Display with KS0073 controller requires special commands for enabling 4 line mode */
+	lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_ON);
+	lcd_command(KS0073_4LINES_MODE);
+	lcd_command(KS0073_EXTENDED_FUNCTION_REGISTER_OFF);
+#else
+    lcd_command(LCD_FUNCTION_DEFAULT);      /* function set: display lines  */
+#endif
+    lcd_command(LCD_DISP_OFF);              /* display off                  */
+    lcd_clrscr();                           /* display clear                */ 
+    lcd_command(LCD_MODE_DEFAULT);          /* set entry mode               */
+    lcd_command(dispAttr);                  /* display/cursor control       */
+
+}/* lcd_init */
+

drivers/avr/hd44780.h

@@ -0,0 +1,371 @@
+#ifndef LCD_H
+#define LCD_H
+/*************************************************************************
+ Title	:   C include file for the HD44780U LCD library (lcd.c)
+ Author:    Peter Fleury <pfleury@gmx.ch>  http://tinyurl.com/peterfleury
+ License:   GNU General Public License Version 3
+ File:	    $Id: lcd.h,v 1.14.2.4 2015/01/20 17:16:07 peter Exp $
+ Software:  AVR-GCC 4.x
+ Hardware:  any AVR device, memory mapped mode only for AVR with 
+            memory mapped interface (AT90S8515/ATmega8515/ATmega128)
+***************************************************************************/
+
+/**
+ @mainpage
+ Collection of libraries for AVR-GCC
+ @author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury
+ @copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
+ 
+ @file
+ @defgroup pfleury_lcd LCD library <lcd.h>
+ @code #include <lcd.h> @endcode
+ 
+ @brief Basic routines for interfacing a HD44780U-based character LCD display
+
+ LCD character displays can be found in many devices, like espresso machines, laser printers. 
+ The Hitachi HD44780 controller and its compatible controllers like Samsung KS0066U have become an industry standard for these types of displays. 
+ 
+ This library allows easy interfacing with a HD44780 compatible display and can be
+ operated in memory mapped mode (LCD_IO_MODE defined as 0 in the include file lcd.h.) or in 
+ 4-bit IO port mode (LCD_IO_MODE defined as 1). 8-bit IO port mode is not supported.
+
+ Memory mapped mode is compatible with old Kanda STK200 starter kit, but also supports
+ generation of R/W signal through A8 address line.
+
+ @see The chapter <a href=" http://homepage.hispeed.ch/peterfleury/avr-lcd44780.html" target="_blank">Interfacing a HD44780 Based LCD to an AVR</a>
+      on my home page, which shows example circuits how to connect an LCD to an AVR controller. 
+
+ @author Peter Fleury pfleury@gmx.ch http://tinyurl.com/peterfleury
+ 
+ @version   2.0
+ 
+ @copyright (C) 2015 Peter Fleury, GNU General Public License Version 3
+  
+*/
+
+#include <inttypes.h>
+#include <avr/pgmspace.h>
+
+#if (__GNUC__ * 100 + __GNUC_MINOR__) < 405
+#error "This library requires AVR-GCC 4.5 or later, update to newer AVR-GCC compiler !"
+#endif
+
+
+/**@{*/
+
+/*
+ * LCD and target specific definitions below can be defined in a separate include file with name lcd_definitions.h instead modifying this file 
+ * by adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile
+ * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
+ */
+#ifdef _LCD_DEFINITIONS_FILE
+#include "lcd_definitions.h"
+#endif
+
+
+/**
+ * @name  Definition for LCD controller type
+ * Use 0 for HD44780 controller, change to 1 for displays with KS0073 controller.
+ */
+#ifndef LCD_CONTROLLER_KS0073 
+#define LCD_CONTROLLER_KS0073 0  /**< Use 0 for HD44780 controller, 1 for KS0073 controller */
+#endif
+
+/** 
+ * @name  Definitions for Display Size 
+ * Change these definitions to adapt setting to your display
+ *
+ * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by 
+ * adding -D_LCD_DEFINITIONS_FILE to the CDEFS section in the Makefile.
+ * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
+ *
+ */
+#ifndef LCD_LINES
+#define LCD_LINES           2     /**< number of visible lines of the display */
+#endif
+#ifndef LCD_DISP_LENGTH
+#define LCD_DISP_LENGTH    16     /**< visibles characters per line of the display */
+#endif
+#ifndef LCD_LINE_LENGTH
+#define LCD_LINE_LENGTH  0x40     /**< internal line length of the display    */
+#endif
+#ifndef LCD_START_LINE1
+#define LCD_START_LINE1  0x00     /**< DDRAM address of first char of line 1 */
+#endif
+#ifndef LCD_START_LINE2
+#define LCD_START_LINE2  0x40     /**< DDRAM address of first char of line 2 */
+#endif
+#ifndef LCD_START_LINE3
+#define LCD_START_LINE3  0x14     /**< DDRAM address of first char of line 3 */
+#endif
+#ifndef LCD_START_LINE4
+#define LCD_START_LINE4  0x54     /**< DDRAM address of first char of line 4 */
+#endif
+#ifndef LCD_WRAP_LINES
+#define LCD_WRAP_LINES      0     /**< 0: no wrap, 1: wrap at end of visibile line */
+#endif
+
+
+/**
+ * @name Definitions for 4-bit IO mode
+ *
+ * The four LCD data lines and the three control lines RS, RW, E can be on the 
+ * same port or on different ports. 
+ * Change LCD_RS_PORT, LCD_RW_PORT, LCD_E_PORT if you want the control lines on
+ * different ports. 
+ *
+ * Normally the four data lines should be mapped to bit 0..3 on one port, but it
+ * is possible to connect these data lines in different order or even on different
+ * ports by adapting the LCD_DATAx_PORT and LCD_DATAx_PIN definitions.
+ *
+ * Adjust these definitions to your target.\n 
+ * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by 
+ * adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile.
+ * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
+ *  
+ */
+#define LCD_IO_MODE      1            /**< 0: memory mapped mode, 1: IO port mode */
+
+#if LCD_IO_MODE
+
+#ifndef LCD_PORT
+#define LCD_PORT         PORTA        /**< port for the LCD lines   */
+#endif
+#ifndef LCD_DATA0_PORT
+#define LCD_DATA0_PORT   LCD_PORT     /**< port for 4bit data bit 0 */
+#endif
+#ifndef LCD_DATA1_PORT
+#define LCD_DATA1_PORT   LCD_PORT     /**< port for 4bit data bit 1 */
+#endif
+#ifndef LCD_DATA2_PORT
+#define LCD_DATA2_PORT   LCD_PORT     /**< port for 4bit data bit 2 */
+#endif
+#ifndef LCD_DATA3_PORT
+#define LCD_DATA3_PORT   LCD_PORT     /**< port for 4bit data bit 3 */
+#endif
+#ifndef LCD_DATA0_PIN
+#define LCD_DATA0_PIN    4            /**< pin for 4bit data bit 0  */
+#endif
+#ifndef LCD_DATA1_PIN
+#define LCD_DATA1_PIN    5            /**< pin for 4bit data bit 1  */
+#endif
+#ifndef LCD_DATA2_PIN
+#define LCD_DATA2_PIN    6            /**< pin for 4bit data bit 2  */
+#endif
+#ifndef LCD_DATA3_PIN
+#define LCD_DATA3_PIN    7            /**< pin for 4bit data bit 3  */
+#endif
+#ifndef LCD_RS_PORT
+#define LCD_RS_PORT      LCD_PORT     /**< port for RS line         */
+#endif
+#ifndef LCD_RS_PIN
+#define LCD_RS_PIN       3            /**< pin  for RS line         */
+#endif
+#ifndef LCD_RW_PORT
+#define LCD_RW_PORT      LCD_PORT     /**< port for RW line         */
+#endif
+#ifndef LCD_RW_PIN
+#define LCD_RW_PIN       2            /**< pin  for RW line         */
+#endif
+#ifndef LCD_E_PORT
+#define LCD_E_PORT       LCD_PORT     /**< port for Enable line     */
+#endif
+#ifndef LCD_E_PIN
+#define LCD_E_PIN        1            /**< pin  for Enable line     */
+#endif
+
+#elif defined(__AVR_AT90S4414__) || defined(__AVR_AT90S8515__) || defined(__AVR_ATmega64__) || \
+      defined(__AVR_ATmega8515__)|| defined(__AVR_ATmega103__) || defined(__AVR_ATmega128__) || \
+      defined(__AVR_ATmega161__) || defined(__AVR_ATmega162__)
+/*
+ * memory mapped mode is only supported when the device has an external data memory interface
+ */
+#define LCD_IO_DATA      0xC000    /* A15=E=1, A14=RS=1                 */
+#define LCD_IO_FUNCTION  0x8000    /* A15=E=1, A14=RS=0                 */
+#define LCD_IO_READ      0x0100    /* A8 =R/W=1 (R/W: 1=Read, 0=Write   */
+
+#else
+#error "external data memory interface not available for this device, use 4-bit IO port mode"
+
+#endif
+
+
+/**
+ * @name Definitions of delays
+ * Used to calculate delay timers.
+ * Adapt the F_CPU define in the Makefile to the clock frequency in Hz of your target
+ *
+ * These delay times can be adjusted, if some displays require different delays.\n 
+ * These definitions can be defined in a separate include file \b lcd_definitions.h instead modifying this file by 
+ * adding \b -D_LCD_DEFINITIONS_FILE to the \b CDEFS section in the Makefile.
+ * All definitions added to the file lcd_definitions.h will override the default definitions from lcd.h
+ */
+#ifndef LCD_DELAY_BOOTUP
+#define LCD_DELAY_BOOTUP   16000      /**< delay in micro seconds after power-on  */
+#endif
+#ifndef LCD_DELAY_INIT
+#define LCD_DELAY_INIT      5000      /**< delay in micro seconds after initialization command sent  */
+#endif
+#ifndef LCD_DELAY_INIT_REP
+#define LCD_DELAY_INIT_REP    64      /**< delay in micro seconds after initialization command repeated */
+#endif
+#ifndef LCD_DELAY_INIT_4BIT
+#define LCD_DELAY_INIT_4BIT   64      /**< delay in micro seconds after setting 4-bit mode */ 
+#endif
+#ifndef LCD_DELAY_BUSY_FLAG
+#define LCD_DELAY_BUSY_FLAG    4      /**< time in micro seconds the address counter is updated after busy flag is cleared */
+#endif
+#ifndef LCD_DELAY_ENABLE_PULSE
+#define LCD_DELAY_ENABLE_PULSE 1      /**< enable signal pulse width in micro seconds */
+#endif
+
+
+/**
+ * @name Definitions for LCD command instructions
+ * The constants define the various LCD controller instructions which can be passed to the 
+ * function lcd_command(), see HD44780 data sheet for a complete description.
+ */
+
+/* instruction register bit positions, see HD44780U data sheet */
+#define LCD_CLR               0      /* DB0: clear display                  */
+#define LCD_HOME              1      /* DB1: return to home position        */
+#define LCD_ENTRY_MODE        2      /* DB2: set entry mode                 */
+#define LCD_ENTRY_INC         1      /*   DB1: 1=increment, 0=decrement     */
+#define LCD_ENTRY_SHIFT       0      /*   DB2: 1=display shift on           */
+#define LCD_ON                3      /* DB3: turn lcd/cursor on             */
+#define LCD_ON_DISPLAY        2      /*   DB2: turn display on              */
+#define LCD_ON_CURSOR         1      /*   DB1: turn cursor on               */
+#define LCD_ON_BLINK          0      /*     DB0: blinking cursor ?          */
+#define LCD_MOVE              4      /* DB4: move cursor/display            */
+#define LCD_MOVE_DISP         3      /*   DB3: move display (0-> cursor) ?  */
+#define LCD_MOVE_RIGHT        2      /*   DB2: move right (0-> left) ?      */
+#define LCD_FUNCTION          5      /* DB5: function set                   */
+#define LCD_FUNCTION_8BIT     4      /*   DB4: set 8BIT mode (0->4BIT mode) */
+#define LCD_FUNCTION_2LINES   3      /*   DB3: two lines (0->one line)      */
+#define LCD_FUNCTION_10DOTS   2      /*   DB2: 5x10 font (0->5x7 font)      */
+#define LCD_CGRAM             6      /* DB6: set CG RAM address             */
+#define LCD_DDRAM             7      /* DB7: set DD RAM address             */
+#define LCD_BUSY              7      /* DB7: LCD is busy                    */
+
+/* set entry mode: display shift on/off, dec/inc cursor move direction */
+#define LCD_ENTRY_DEC            0x04   /* display shift off, dec cursor move dir */
+#define LCD_ENTRY_DEC_SHIFT      0x05   /* display shift on,  dec cursor move dir */
+#define LCD_ENTRY_INC_           0x06   /* display shift off, inc cursor move dir */
+#define LCD_ENTRY_INC_SHIFT      0x07   /* display shift on,  inc cursor move dir */
+
+/* display on/off, cursor on/off, blinking char at cursor position */
+#define LCD_DISP_OFF             0x08   /* display off                            */
+#define LCD_DISP_ON              0x0C   /* display on, cursor off                 */
+#define LCD_DISP_ON_BLINK        0x0D   /* display on, cursor off, blink char     */
+#define LCD_DISP_ON_CURSOR       0x0E   /* display on, cursor on                  */
+#define LCD_DISP_ON_CURSOR_BLINK 0x0F   /* display on, cursor on, blink char      */
+
+/* move cursor/shift display */
+#define LCD_MOVE_CURSOR_LEFT     0x10   /* move cursor left  (decrement)          */
+#define LCD_MOVE_CURSOR_RIGHT    0x14   /* move cursor right (increment)          */
+#define LCD_MOVE_DISP_LEFT       0x18   /* shift display left                     */
+#define LCD_MOVE_DISP_RIGHT      0x1C   /* shift display right                    */
+
+/* function set: set interface data length and number of display lines */
+#define LCD_FUNCTION_4BIT_1LINE  0x20   /* 4-bit interface, single line, 5x7 dots */
+#define LCD_FUNCTION_4BIT_2LINES 0x28   /* 4-bit interface, dual line,   5x7 dots */
+#define LCD_FUNCTION_8BIT_1LINE  0x30   /* 8-bit interface, single line, 5x7 dots */
+#define LCD_FUNCTION_8BIT_2LINES 0x38   /* 8-bit interface, dual line,   5x7 dots */
+
+
+#define LCD_MODE_DEFAULT     ((1<<LCD_ENTRY_MODE) | (1<<LCD_ENTRY_INC) )
+
+
+
+/** 
+ *  @name Functions
+ */
+
+
+/**
+ @brief    Initialize display and select type of cursor
+ @param    dispAttr \b LCD_DISP_OFF display off\n
+                    \b LCD_DISP_ON display on, cursor off\n
+                    \b LCD_DISP_ON_CURSOR display on, cursor on\n
+                    \b LCD_DISP_ON_CURSOR_BLINK display on, cursor on flashing             
+ @return  none
+*/
+extern void lcd_init(uint8_t dispAttr);
+
+
+/**
+ @brief    Clear display and set cursor to home position
+ @return   none
+*/
+extern void lcd_clrscr(void);
+
+
+/**
+ @brief    Set cursor to home position
+ @return   none
+*/
+extern void lcd_home(void);
+
+
+/**
+ @brief    Set cursor to specified position
+ 
+ @param    x horizontal position\n (0: left most position)
+ @param    y vertical position\n   (0: first line)
+ @return   none
+*/
+extern void lcd_gotoxy(uint8_t x, uint8_t y);
+
+
+/**
+ @brief    Display character at current cursor position
+ @param    c character to be displayed                                       
+ @return   none
+*/
+extern void lcd_putc(char c);
+
+
+/**
+ @brief    Display string without auto linefeed
+ @param    s string to be displayed                                        
+ @return   none
+*/
+extern void lcd_puts(const char *s);
+
+
+/**
+ @brief    Display string from program memory without auto linefeed
+ @param    progmem_s string from program memory be be displayed                                        
+ @return   none
+ @see      lcd_puts_P
+*/
+extern void lcd_puts_p(const char *progmem_s);
+
+
+/**
+ @brief    Send LCD controller instruction command
+ @param    cmd instruction to send to LCD controller, see HD44780 data sheet
+ @return   none
+*/
+extern void lcd_command(uint8_t cmd);
+
+
+/**
+ @brief    Send data byte to LCD controller 
+ 
+ Similar to lcd_putc(), but without interpreting LF
+ @param    data byte to send to LCD controller, see HD44780 data sheet
+ @return   none
+*/
+extern void lcd_data(uint8_t data);
+
+
+/**
+ @brief macros for automatically storing string constant in program memory
+*/
+#define lcd_puts_P(__s)         lcd_puts_p(PSTR(__s))
+
+/**@}*/
+
+#endif //LCD_H
+

drivers/avr/i2c_master.c

@@ -15,15 +15,15 @@
 void i2c_init(void)
 {
   TWSR = 0;     /* no prescaler */
-	TWBR = (uint8_t)TWBR_val;
+  TWBR = (uint8_t)TWBR_val;
 }
 
 i2c_status_t i2c_start(uint8_t address, uint16_t timeout)
 {
-	// reset TWI control register
-	TWCR = 0;
-	// transmit START condition
-	TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
+  // reset TWI control register
+  TWCR = 0;
+  // transmit START condition
+  TWCR = (1<<TWINT) | (1<<TWSTA) | (1<<TWEN);
 
   uint16_t timeout_timer = timer_read();
   while( !(TWCR & (1<<TWINT)) ) {
@@ -32,13 +32,13 @@ i2c_status_t i2c_start(uint8_t address, uint16_t timeout)
     }
   }
 
-	// check if the start condition was successfully transmitted
-	if(((TW_STATUS & 0xF8) != TW_START) && ((TW_STATUS & 0xF8) != TW_REP_START)){ return I2C_STATUS_ERROR; }
+  // check if the start condition was successfully transmitted
+  if(((TW_STATUS & 0xF8) != TW_START) && ((TW_STATUS & 0xF8) != TW_REP_START)){ return I2C_STATUS_ERROR; }
 
-	// load slave address into data register
-	TWDR = address;
-	// start transmission of address
-	TWCR = (1<<TWINT) | (1<<TWEN);
+  // load slave address into data register
+  TWDR = address;
+  // start transmission of address
+  TWCR = (1<<TWINT) | (1<<TWEN);
 
   timeout_timer = timer_read();
   while( !(TWCR & (1<<TWINT)) ) {
@@ -47,19 +47,19 @@ i2c_status_t i2c_start(uint8_t address, uint16_t timeout)
     }
   }
 
-	// check if the device has acknowledged the READ / WRITE mode
-	uint8_t twst = TW_STATUS & 0xF8;
-	if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return I2C_STATUS_ERROR;
+  // check if the device has acknowledged the READ / WRITE mode
+  uint8_t twst = TW_STATUS & 0xF8;
+  if ( (twst != TW_MT_SLA_ACK) && (twst != TW_MR_SLA_ACK) ) return I2C_STATUS_ERROR;
 
-	return I2C_STATUS_SUCCESS;
+  return I2C_STATUS_SUCCESS;
 }
 
 i2c_status_t i2c_write(uint8_t data, uint16_t timeout)
 {
-	// load data into data register
-	TWDR = data;
-	// start transmission of data
-	TWCR = (1<<TWINT) | (1<<TWEN);
+  // load data into data register
+  TWDR = data;
+  // start transmission of data
+  TWCR = (1<<TWINT) | (1<<TWEN);
 
   uint16_t timeout_timer = timer_read();
   while( !(TWCR & (1<<TWINT)) ) {
@@ -68,16 +68,16 @@ i2c_status_t i2c_write(uint8_t data, uint16_t timeout)
     }
   }
 
-	if( (TW_STATUS & 0xF8) != TW_MT_DATA_ACK ){ return I2C_STATUS_ERROR; }
+  if( (TW_STATUS & 0xF8) != TW_MT_DATA_ACK ){ return I2C_STATUS_ERROR; }
 
-	return I2C_STATUS_SUCCESS;
+  return I2C_STATUS_SUCCESS;
 }
 
 int16_t i2c_read_ack(uint16_t timeout)
 {
 
-	// start TWI module and acknowledge data after reception
-	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
+  // start TWI module and acknowledge data after reception
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWEA);
 
   uint16_t timeout_timer = timer_read();
   while( !(TWCR & (1<<TWINT)) ) {
@@ -86,15 +86,15 @@ int16_t i2c_read_ack(uint16_t timeout)
     }
   }
 
-	// return received data from TWDR
-	return TWDR;
+  // return received data from TWDR
+  return TWDR;
 }
 
 int16_t i2c_read_nack(uint16_t timeout)
 {
 
-	// start receiving without acknowledging reception
-	TWCR = (1<<TWINT) | (1<<TWEN);
+  // start receiving without acknowledging reception
+  TWCR = (1<<TWINT) | (1<<TWEN);
 
   uint16_t timeout_timer = timer_read();
   while( !(TWCR & (1<<TWINT)) ) {
@@ -103,39 +103,39 @@ int16_t i2c_read_nack(uint16_t timeout)
     }
   }
 
-	// return received data from TWDR
-	return TWDR;
+  // return received data from TWDR
+  return TWDR;
 }
 
 i2c_status_t i2c_transmit(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout)
 {
   i2c_status_t status = i2c_start(address | I2C_WRITE, timeout);
-	if (status) return status;
-
-	for (uint16_t i = 0; i < length; i++) {
-		status = i2c_write(data[i], timeout);
-    if (status) return status;
-	}
-
-	status = i2c_stop(timeout);
   if (status) return status;
 
-	return I2C_STATUS_SUCCESS;
+  for (uint16_t i = 0; i < length; i++) {
+    status = i2c_write(data[i], timeout);
+    if (status) return status;
+  }
+
+  status = i2c_stop(timeout);
+  if (status) return status;
+
+  return I2C_STATUS_SUCCESS;
 }
 
 i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16_t timeout)
 {
   i2c_status_t status = i2c_start(address | I2C_READ, timeout);
-	if (status) return status;
+  if (status) return status;
 
-	for (uint16_t i = 0; i < (length-1); i++) {
+  for (uint16_t i = 0; i < (length-1); i++) {
     status = i2c_read_ack(timeout);
     if (status >= 0) {
       data[i] = status;
     } else {
       return status;
     }
-	}
+  }
 
   status = i2c_read_nack(timeout);
   if (status >= 0 ) {
@@ -147,47 +147,47 @@ i2c_status_t i2c_receive(uint8_t address, uint8_t* data, uint16_t length, uint16
   status = i2c_stop(timeout);
   if (status) return status;
 
-	return I2C_STATUS_SUCCESS;
+  return I2C_STATUS_SUCCESS;
 }
 
 i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout)
 {
   i2c_status_t status = i2c_start(devaddr | 0x00, timeout);
-	if (status) return status;
-
-	status = i2c_write(regaddr, timeout);
   if (status) return status;
 
-	for (uint16_t i = 0; i < length; i++) {
+  status = i2c_write(regaddr, timeout);
+  if (status) return status;
+
+  for (uint16_t i = 0; i < length; i++) {
     status = i2c_write(data[i], timeout);
-		if (status) return status;
-	}
+    if (status) return status;
+  }
 
-	status = i2c_stop(timeout);
+  status = i2c_stop(timeout);
   if (status) return status;
 
-	return I2C_STATUS_SUCCESS;
+  return I2C_STATUS_SUCCESS;
 }
 
 i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout)
 {
   i2c_status_t status = i2c_start(devaddr, timeout);
-	if (status) return status;
+  if (status) return status;
 
   status = i2c_write(regaddr, timeout);
   if (status) return status;
 
   status = i2c_start(devaddr | 0x01, timeout);
-	if (status) return status;
+  if (status) return status;
 
-	for (uint16_t i = 0; i < (length-1); i++) {
-		status = i2c_read_ack(timeout);
+  for (uint16_t i = 0; i < (length-1); i++) {
+    status = i2c_read_ack(timeout);
     if (status >= 0) {
       data[i] = status;
     } else {
       return status;
     }
-	}
+  }
 
   status = i2c_read_nack(timeout);
   if (status >= 0 ) {
@@ -199,13 +199,13 @@ i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16
   status = i2c_stop(timeout);
   if (status) return status;
 
-	return I2C_STATUS_SUCCESS;
+  return I2C_STATUS_SUCCESS;
 }
 
 i2c_status_t i2c_stop(uint16_t timeout)
 {
-	// transmit STOP condition
-	TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+  // transmit STOP condition
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
 
   uint16_t timeout_timer = timer_read();
   while(TWCR & (1<<TWSTO)) {
@@ -215,4 +215,4 @@ i2c_status_t i2c_stop(uint16_t timeout)
   }
 
   return I2C_STATUS_SUCCESS;
-}
+}

drivers/avr/i2c_master.h

@@ -28,4 +28,4 @@ i2c_status_t i2c_writeReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint1
 i2c_status_t i2c_readReg(uint8_t devaddr, uint8_t regaddr, uint8_t* data, uint16_t length, uint16_t timeout);
 i2c_status_t i2c_stop(uint16_t timeout);
 
-#endif // I2C_MASTER_H
+#endif // I2C_MASTER_H

drivers/avr/i2c_slave.c

@@ -0,0 +1,68 @@
+/* Library made by: g4lvanix
+ * Github repository: https://github.com/g4lvanix/I2C-slave-lib
+ */
+
+#include <avr/io.h>
+#include <util/twi.h>
+#include <avr/interrupt.h>
+#include <stdbool.h>
+
+#include "i2c_slave.h"
+
+void i2c_init(uint8_t address){
+    // load address into TWI address register
+    TWAR = (address << 1);
+    // set the TWCR to enable address matching and enable TWI, clear TWINT, enable TWI interrupt
+    TWCR = (1 << TWIE) | (1 << TWEA) | (1 << TWINT) | (1 << TWEN);
+}
+
+void i2c_stop(void){
+    // clear acknowledge and enable bits
+    TWCR &= ~((1 << TWEA) | (1 << TWEN));
+}
+
+ISR(TWI_vect){
+    uint8_t ack = 1;
+    // temporary stores the received data
+    //uint8_t data;
+    
+    switch(TW_STATUS){
+        case TW_SR_SLA_ACK:
+            // The device is now a slave receiver
+            slave_has_register_set = false;
+            break;
+
+        case TW_SR_DATA_ACK:
+            // This device is a slave receiver and has received data
+            // First byte is the location then the bytes will be writen in buffer with auto-incriment
+            if(!slave_has_register_set){
+                buffer_address = TWDR;
+
+                if (buffer_address >= RX_BUFFER_SIZE){ // address out of bounds dont ack
+                    ack = 0;
+                    buffer_address = 0;
+                }
+                slave_has_register_set = true; // address has been receaved now fill in buffer
+            } else {
+                rxbuffer[buffer_address] = TWDR;
+                buffer_address++;
+            }
+            break;
+
+        case TW_ST_SLA_ACK:
+        case TW_ST_DATA_ACK:
+            // This device is a slave transmitter and master has requested data
+            TWDR = txbuffer[buffer_address];
+            buffer_address++;
+            break;
+
+        case TW_BUS_ERROR:
+            // We got an error, reset i2c
+            TWCR = 0;
+        default:
+            break;
+    }
+
+    // Reset i2c state mahcine to be ready for next interrupt
+    TWCR |= (1 << TWIE) | (1 << TWINT) | (ack << TWEA) | (1 << TWEN);
+}

drivers/avr/i2c_slave.h

@@ -0,0 +1,23 @@
+/* Library made by: g4lvanix
+ * Github repository: https://github.com/g4lvanix/I2C-slave-lib
+
+ Info: Inititate the library by giving the required address.
+       Read or write to the necessary buffer according to the opperation.
+ */
+
+#ifndef I2C_SLAVE_H
+#define I2C_SLAVE_H
+
+#define TX_BUFFER_SIZE 30
+#define RX_BUFFER_SIZE 30
+
+volatile uint8_t buffer_address;
+static volatile bool slave_has_register_set = false;
+volatile uint8_t txbuffer[TX_BUFFER_SIZE];
+volatile uint8_t rxbuffer[RX_BUFFER_SIZE];
+
+void i2c_init(uint8_t address);
+void i2c_stop(void);
+ISR(TWI_vect);
+
+#endif // I2C_SLAVE_H

keyboards/bfo9000/keymaps/andylikescandy6x18/config.h

@@ -0,0 +1,43 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+
+ #define PERMISSIVE_HOLD
+
+ #define PREVENT_STUCK_MODIFIERS
+
+
+#endif

keyboards/bfo9000/keymaps/andylikescandy6x18/keymap.c

@@ -0,0 +1,87 @@
+#include QMK_KEYBOARD_H
+
+#include "action_layer.h"
+
+
+
+#define _BASE 0
+#define _QWERTY 1
+#define _RAISE 2
+#define _NAVIGATION 3
+
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+//Switch Layouts
+#define SWBASE M(_BASE)
+#define SWQWERTY M(_QWERTY)
+
+// layer access
+#define RSESPC LT( 2, KC_SPC)
+#define NAVSPC LT( 3, KC_SPC)
+
+// Key Combos
+#define CTRLSFT LCTL(KC_LSFT)
+#define CTLALTSFT LALT(LCTL(KC_LSFT))
+#define CTLALTDEL LALT(LCTL(KC_DEL))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+[_BASE] = LAYOUT( \
+    CTLALTSFT,  KC_F1,    KC_F2,    KC_F3,   KC_F4,    KC_F5,         KC_F6,          KC_F7,            KC_F8,        KC_F9,          KC_F10,     KC_F11,             KC_F12,  KC_PSCREEN,  KC_PAUSE,   KC_CAPS,    KC_INSERT,      KC_EQL,     \
+    KC_GRV,     KC_1,     KC_2,     KC_3,    KC_4,     KC_5,          KC_HOME,        KC_NUMLOCK,       KC_KP_SLASH,  KC_KP_ASTERISK, KC_LBRC,    KC_RBRC,              KC_6,    KC_7,        KC_8,       KC_9,       KC_0,           KC_MINS,   \
+    KC_TAB,     KC_Q,     KC_W,     KC_F,    KC_P,     KC_G,          KC_END,         KC_P7,            KC_P8,        KC_P9,          KC_PMNS,    KC_PGUP,              KC_J,    KC_L,        KC_U,       KC_Y,       KC_SCLN,        KC_BSPC,         \
+    KC_ESC,     KC_A,     KC_R,     KC_S,    KC_T,     KC_D,          KC_DEL,         KC_P4,            KC_P5,        KC_P6,          KC_PPLS,    KC_PGDN,              KC_H,    KC_N,        KC_E,       KC_I,       KC_O,           KC_QUOT,          \
+    KC_LSFT,    KC_Z,     KC_X,     KC_C,    KC_V,     KC_B,          SFT_T(KC_ENT),  KC_P1,            KC_P2,        KC_P3,          KC_UP,      KC_BSLASH,            KC_K,    KC_M,        KC_COMM,    KC_DOT,     KC_SLSH,        SFT_T(KC_ENT),      \
+    KC_LCTL,    CTRLSFT,  KC_LGUI,  KC_LALT, RSESPC,   NAVSPC,        KC_LCTL,        KC_P0,            KC_PDOT,      KC_LEFT,        KC_DOWN,    KC_RGHT,              NAVSPC,  RSESPC,      KC_RALT,    KC_RGUI,    KC_APPLICATION, KC_RCTL       \
+),
+[_QWERTY] = LAYOUT( \
+    CTLALTSFT,  KC_F1,    KC_F2,    KC_F3,   KC_F4,    KC_F5,         KC_F6,          KC_F7,            KC_F8,        KC_F9,          KC_F10,     KC_F11,               KC_F12,  KC_PSCREEN,  KC_PAUSE,   KC_CAPS,    KC_INSERT,      KC_EQL,     \
+    KC_GRV,     KC_1,     KC_2,     KC_3,    KC_4,     KC_5,          KC_HOME,        KC_NUMLOCK,       KC_KP_SLASH,  KC_KP_ASTERISK, KC_LBRC,    KC_RBRC,              KC_6,    KC_7,        KC_8,       KC_9,       KC_0,           KC_MINS,   \
+    KC_TAB,     KC_Q,     KC_W,     KC_E,    KC_R,     KC_T,          KC_END,         KC_P7,            KC_P8,        KC_P9,          KC_PMNS,    KC_PGUP,              KC_Y,    KC_U,        KC_I,       KC_O,       KC_P,        KC_BSPC,         \
+    KC_ESC,     KC_A,     KC_S,     KC_D,    KC_F,     KC_G,          KC_DEL,         KC_P4,            KC_P5,        KC_P6,          KC_PPLS,    KC_PGDN,              KC_H,    KC_J,        KC_K,       KC_L,       KC_SCLN,           KC_QUOT,          \
+    KC_LSFT,    KC_Z,     KC_X,     KC_C,    KC_V,     KC_B,          SFT_T(KC_ENT),  KC_P1,            KC_P2,        KC_P3,          KC_UP,      KC_BSLASH,            KC_N,    KC_M,        KC_COMM,    KC_DOT,     KC_SLSH,        SFT_T(KC_ENT),      \
+    KC_LCTL,    CTRLSFT,  KC_LGUI,  KC_LALT, RSESPC,   NAVSPC,        KC_LCTL,        KC_P0,            KC_PDOT,      KC_LEFT,        KC_DOWN,    KC_RGHT,              NAVSPC,  RSESPC,      KC_RALT,    KC_RGUI,    KC_APPLICATION, KC_RCTL       \
+),
+[_RAISE] = LAYOUT( \
+    CTLALTDEL,  SWBASE,     SWQWERTY,   XXXXXXX,    XXXXXXX,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,   XXXXXXX,    XXXXXXX,                   XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    \
+    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,   XXXXXXX,    XXXXXXX,                   XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    _______,    _______,    \
+    _______,    KC_EXLM,    KC_AT,      KC_HASH,    KC_DLR,         KC_PERC,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,   _______,    LCTL(KC_PGUP),             KC_CIRC,    KC_AMPR,    KC_ASTR,    KC_LPRN,    KC_RPRN,    _______,        \
+    KC_DEL,     KC_1,       KC_2,       KC_3,       KC_4,           KC_5,       XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,   _______,    LCTL(KC_PGDN),             KC_6,       KC_7,       KC_8,       KC_9,       KC_0,       _______,      \
+    _______,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        XXXXXXX,    _______,      XXXXXXX,    XXXXXXX,    XXXXXXX,   _______,    LSFT(KC_BSLASH),           XXXXXXX,    _______,    _______,    _______,    _______,    _______,    \
+    _______,    _______,    _______,    _______,    _______,        _______,    _______,      _______,    _______,    _______,   _______,    _______,                   _______,    _______,    _______,    _______,    _______,    _______    \
+),
+[_NAVIGATION] = LAYOUT( \
+    CTLALTDEL,  SWBASE,     SWQWERTY,   XXXXXXX,    XXXXXXX,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,   XXXXXXX,                   XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        \
+    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,   XXXXXXX,                   XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,    _______,        \
+    _______,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,    _______,   LCTL(KC_PGUP),             XXXXXXX,    KC_HOME,    KC_PGDN,    KC_PGUP,    KC_END,     _______,       \
+    KC_DEL,     _______,    XXXXXXX,    KC_LSFT,    KC_LCTL,        XXXXXXX,    XXXXXXX,      XXXXXXX,    XXXXXXX,    XXXXXXX,    _______,   LCTL(KC_PGDN),             XXXXXXX,    KC_LEFT,    KC_DOWN,    KC_UP,      KC_RIGHT,   _______,        \
+    _______,    XXXXXXX,    XXXXXXX,    XXXXXXX,    XXXXXXX,        XXXXXXX,    _______,      XXXXXXX,    XXXXXXX,    XXXXXXX,    _______,   LSFT(KC_BSLASH),           XXXXXXX,    XXXXXXX,    _______,    _______,    _______,    _______,        \
+    _______,    _______,    _______,    _______,    _______,        _______,    _______,      _______,    _______,    _______,    _______,   _______,                   _______,    _______,    _______,    _______,    _______,    _______      \
+)
+
+
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+      switch(id) {
+        case _BASE:
+          if (record->event.pressed) {
+            persistent_default_layer_set(1UL<<_BASE);
+          }
+          break;
+        case _QWERTY:
+          if (record->event.pressed) {
+            persistent_default_layer_set(1UL<<_QWERTY);
+          }
+          break;
+      }
+    return MACRO_NONE;
+};

keyboards/dc01/arrow/arrow.c

@@ -0,0 +1,43 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "arrow.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+	led_set_user(usb_led);
+}

keyboards/dc01/arrow/arrow.h

@@ -0,0 +1,41 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef ARROW_H
+#define ARROW_H
+
+#include "quantum.h"
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+#define LAYOUT_ALL( \
+    K00, K01, K02, \
+    K10, K11, K12, \
+                   \
+         K31,      \
+    K40, K41, K42  \
+) \
+{ \
+    { K00, K01, K02 }, \
+    { K10, K11, K12 }, \
+    { XXX, XXX, XXX }, \
+    { XXX, K31, XXX }, \
+    { K40, K41, K42 }  \
+}
+
+#endif

keyboards/dc01/arrow/config.h

@@ -0,0 +1,151 @@
+/*
+Copyright 2018 Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1012
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Mechboards
+#define PRODUCT         DC01 Arrow
+#define DESCRIPTION     Arrow cluster of DC01 keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 3
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS { B0, C7, C6, B6, B4 }
+#define MATRIX_COL_PINS { F0, B7, D2 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+//#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 1

keyboards/dc01/arrow/keymaps/default/keymap.c

@@ -0,0 +1,42 @@
+/* Copyright 2018 REPLACE_WITH_YOUR_NAME
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ALL( /* Base */
+    KC_INS,  KC_HOME,  KC_PGUP, \
+    KC_DEL,  KC_END,   KC_PGDN, \
+                                \
+             KC_UP,             \
+    KC_LEFT, KC_DOWN,  KC_RIGHT \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}
+
+void led_set_user(uint8_t usb_led) {
+
+}

keyboards/dc01/arrow/keymaps/default/readme.md

@@ -0,0 +1,3 @@
+# The default ANSI keymap for DC01 Arrow cluster
+
+When using the arrow module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/arrow/matrix.c

@@ -0,0 +1,404 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stdint.h>
+#include <stdbool.h>
+#if defined(__AVR__)
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#endif
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "timer.h"
+#include "i2c_slave.h"
+#include "lufa.h"
+
+#define SLAVE_I2C_ADDRESS 0x23
+
+/* Set 0 if debouncing isn't needed */
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+#ifdef MATRIX_MASKED
+    extern const matrix_row_t matrix_mask[];
+#endif
+
+#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+void matrix_init(void) {
+
+    // initialize row and col
+#if (DIODE_DIRECTION == COL2ROW)
+    unselect_rows();
+    init_cols();
+#elif (DIODE_DIRECTION == ROW2COL)
+    unselect_cols();
+    init_rows();
+#endif
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+#if (DIODE_DIRECTION == COL2ROW)
+
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+
+#       else
+            read_cols_on_row(matrix, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix, current_col);
+#       endif
+
+    }
+
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+            debouncing = false;
+        }
+#   endif
+        
+        if (USB_DeviceState != DEVICE_STATE_Configured){
+            txbuffer[1] = 0x55;
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++){
+                txbuffer[i+2] = matrix[i]; //send matrix over i2c
+            }
+        }
+    
+    matrix_scan_quantum();
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+#if (DEBOUNCING_DELAY > 0)
+    if (debouncing) return false;
+#endif
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
+    // switch blocker installed and the switch is always pressed.
+#ifdef MATRIX_MASKED
+    return matrix[row] & matrix_mask[row];
+#else
+    return matrix[row];
+#endif
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
+
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif
+
+//this replases tmk code
+void matrix_setup(void){
+    
+    if (USB_DeviceState != DEVICE_STATE_Configured){
+        i2c_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
+        sei(); //enable interupts
+    }
+}

keyboards/dc01/arrow/readme.md

@@ -0,0 +1,15 @@
+# DC01 Arrow Cluster
+
+![DC01 Arrow Cluster](https://i.imgur.com/PTn0sp8.jpg)
+
+A hotpluggable four part keyboard which comes together with magnets and pogo pins! This is the arrow cluster
+
+Keyboard Maintainer: [Yiancar](https://github.com/yiancar)  
+Hardware Supported: Runs on an atmega32u4  
+Hardware Availability: [Mechboards](https://mechboards.co.uk/)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make dc01/arrow:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/dc01/arrow/rules.mk

@@ -0,0 +1,74 @@
+SRC += matrix.c \
+       ../../../drivers/avr/i2c_slave.c
+
+# MCU name
+#MCU = at90usb1286
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs (+400)
+NO_USB_STARTUP_CHECK = yes  # Disable initialization only when usb is plugged in
+CUSTOM_MATRIX = yes         # Use custom matrix

keyboards/dc01/left/config.h

@@ -0,0 +1,152 @@
+/*
+Copyright 2018 Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1010
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Mechboards
+#define PRODUCT         DC01 Left
+#define DESCRIPTION     Left half of DC01 keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 21
+#define MATRIX_COLS_SCANNED 6
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS { B6, B5, B4, D7, D6 }
+#define MATRIX_COL_PINS { F4, F1, F0, F7, F6, F5 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+//#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 1

keyboards/dc01/left/i2c.c

@@ -0,0 +1,159 @@
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+
+  // easier way, but will wait slightly longer
+  // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+  // no prescaler
+  TWSR = 0;
+  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+  // Check datasheets for more info.
+  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+//          1 => error
+uint8_t i2c_master_start(uint8_t address) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+  i2c_delay();
+
+  // check that we started successfully
+  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+    return 1;
+
+  TWDR = address;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+    return 1; // slave did not acknowledge
+  else
+    return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+//         1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+  TWDR = data;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  // check if the slave acknowledged us
+  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+  i2c_delay();
+  return TWDR;
+}
+
+void i2c_reset_state(void) {
+  TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+  TWAR = address << 0; // slave i2c address
+  // TWEN  - twi enable
+  // TWEA  - enable address acknowledgement
+  // TWINT - twi interrupt flag
+  // TWIE  - enable the twi interrupt
+  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+  uint8_t ack = 1;
+  switch(TW_STATUS) {
+    case TW_SR_SLA_ACK:
+      // this device has been addressed as a slave receiver
+      slave_has_register_set = false;
+      break;
+
+    case TW_SR_DATA_ACK:
+      // this device has received data as a slave receiver
+      // The first byte that we receive in this transaction sets the location
+      // of the read/write location of the slaves memory that it exposes over
+      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
+      // slave_buffer_pos after each write.
+      if(!slave_has_register_set) {
+        slave_buffer_pos = TWDR;
+        // don't acknowledge the master if this memory loctaion is out of bounds
+        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+          ack = 0;
+          slave_buffer_pos = 0;
+        }
+        slave_has_register_set = true;
+      } else {
+        i2c_slave_buffer[slave_buffer_pos] = TWDR;
+        BUFFER_POS_INC();
+      }
+      break;
+
+    case TW_ST_SLA_ACK:
+    case TW_ST_DATA_ACK:
+      // master has addressed this device as a slave transmitter and is
+      // requesting data.
+      TWDR = i2c_slave_buffer[slave_buffer_pos];
+      BUFFER_POS_INC();
+      break;
+
+    case TW_BUS_ERROR: // something went wrong, reset twi state
+      TWCR = 0;
+    default:
+      break;
+  }
+  // Reset everything, so we are ready for the next TWI interrupt
+  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}

keyboards/dc01/left/i2c.h

@@ -0,0 +1,31 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK  400000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+#endif

keyboards/dc01/left/keymaps/default/keymap.c

@@ -0,0 +1,38 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ANSI( /* Base */
+  KC_ESC,    KC_1,   KC_2,   KC_3,   KC_4,   KC_5, KC_6,       KC_7, KC_8,    KC_9,   KC_0,    KC_MINS, KC_EQL,  KC_BSPC,    KC_INS,  KC_HOME,  KC_PGUP,    KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,  \
+  KC_TAB,    KC_Q,   KC_W,   KC_E,   KC_R,   KC_T,       KC_Y, KC_U, KC_I,    KC_O,   KC_P,    KC_LBRC, KC_RBRC, KC_BSLS,    KC_DEL,  KC_END,   KC_PGDN,    KC_P7,    KC_P8,    KC_P9,    KC_PPLS,  \
+  KC_CAPS,   KC_A,   KC_S,   KC_D,   KC_F,   KC_G,       KC_H, KC_J, KC_K,    KC_L,   KC_SCLN, KC_QUOT,          KC_ENT,                                    KC_P4,    KC_P5,    KC_P6,    KC_NO,    \
+  KC_LSFT,   KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,       KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH,                   KC_RSFT,             KC_UP,                KC_P1,    KC_P2,    KC_P3,              \
+  KC_LCTL,   KC_LGUI,  KC_LALT,  KC_SPC,                 KC_SPC,    KC_SPC,    KC_RALT,    KC_RGUI,     KC_RGUI, KC_RCTL,    KC_LEFT, KC_DOWN,  KC_RIGHT,   KC_P0,    KC_NO,    KC_PDOT,  KC_PENT   \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/dc01/left/keymaps/default/readme.md

@@ -0,0 +1,9 @@
+# The default ANSI keymap for DC01 Left
+
+The keymap looks like a full layout keymap.
+
+This is because the left part of the keyboard acts as the masterm coordinating all four part.
+
+When using the keyboard to connect the other three parts, this keymap overwrites the individual keymaps of the single modules.
+
+When using a module individually, the keymap of that module will take effect.

keyboards/dc01/left/left.c

@@ -0,0 +1,43 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "left.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+	led_set_user(usb_led);
+}

keyboards/dc01/left/left.h

@@ -0,0 +1,41 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef LEFT_H
+#define LEFT_H
+
+#include "quantum.h"
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+#define LAYOUT_ANSI( \
+    K00, K01, K02, K03, K04, K05, K45,        K07, K08, K09, K0A, K0B, K0C, K0D,   K0E, K0F, K0G,   K0H, K0J, K0K, K0L, \
+    K10, K11, K12, K13, K14, K15,        K16, K17, K18, K19, K1A, K1B, K1C, K1D,   K1E, K1F, K1G,   K1H, K1J, K1K, K1L, \
+    K20, K21, K22, K23, K24, K25,        K26, K27, K28, K29, K2A, K2B,      K2D,                    K2H, K2J, K2K, K2L, \
+    K30, K31, K32, K33, K34, K35,        K36, K37, K38, K39, K3A,           K3D,        K3F,        K3H, K3J, K3K,      \
+    K40, K41, K42, K43,                  K46, K47, K48, K49, K4A, K4B,             K4E, K4F, K4G,   K4H, K4J, K4K, K4L  \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05,   XXX, K07, K08, K09, K0A, K0B, K0C, K0D,   K0E, K0F, K0G,   K0H, K0J, K0K, K0L }, \
+    { K10, K11, K12, K13, K14, K15,   K16, K17, K18, K19, K1A, K1B, K1C, K1D,   K1E, K1F, K1G,   K1H, K1J, K1K, K1L }, \
+    { K20, K21, K22, K23, K24, K25,   K26, K27, K28, K29, K2A, K2B, XXX, K2D,   XXX, XXX, XXX,   K2H, K2J, K2K, K2L }, \
+    { K30, K31, K32, K33, K34, K35,   K36, K37, K38, K39, K3A, XXX, XXX, K3D,   XXX, K3F, XXX,   K3H, K3J, K3K, XXX }, \
+    { K40, K41, K42, K43, XXX, K45,   K46, K47, K48, K49, K4A, K4B, XXX, XXX,   K4E, K4F, K4G,   K4H, K4J, K4K, K4L }  \
+}
+
+#endif

keyboards/dc01/left/matrix.c

@@ -0,0 +1,479 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stdint.h>
+#include <stdbool.h>
+#if defined(__AVR__)
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#endif
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "timer.h"
+#include "i2c_master.h"
+
+#define SLAVE_I2C_ADDRESS_RIGHT 0x19
+#define SLAVE_I2C_ADDRESS_NUMPAD 0x21
+#define SLAVE_I2C_ADDRESS_ARROW 0x23
+
+#define ERROR_DISCONNECT_COUNT 5
+static uint8_t error_count_right = 0;
+static uint8_t error_count_numpad = 0;
+static uint8_t error_count_arrow = 0;
+
+/* Set 0 if debouncing isn't needed */
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+#ifdef MATRIX_MASKED
+    extern const matrix_row_t matrix_mask[];
+#endif
+
+#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS_SCANNED] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+
+i2c_status_t i2c_transaction(uint8_t address, uint32_t mask, uint8_t col_offset);
+//uint8_t i2c_transaction_numpad(void);
+//uint8_t i2c_transaction_arrow(void);
+
+//this replases tmk code
+void matrix_setup(void){
+    i2c_init();
+}
+
+void matrix_init(void) {
+
+    // initialize row and col
+#if (DIODE_DIRECTION == COL2ROW)
+    unselect_rows();
+    init_cols();
+#elif (DIODE_DIRECTION == ROW2COL)
+    unselect_cols();
+    init_rows();
+#endif
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+    
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+
+#       else
+            read_cols_on_row(matrix, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix, current_col);
+#       endif
+
+    }
+
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+            debouncing = false;
+        }
+#   endif
+        
+    if (i2c_transaction(SLAVE_I2C_ADDRESS_RIGHT, 0x3F, 0)){ //error has occured for main right half
+        error_count_right++;
+        if (error_count_right > ERROR_DISCONNECT_COUNT){ //disconnect half
+            for (uint8_t i = 0; i < MATRIX_ROWS ; i++) {
+                matrix[i] &= 0x3F; //mask bits to keep
+            }
+        }
+    }else{ //no error
+        error_count_right = 0;
+    }
+    
+    if (i2c_transaction(SLAVE_I2C_ADDRESS_ARROW, 0X3FFF, 8)){ //error has occured for arrow cluster
+        error_count_arrow++;
+        if (error_count_arrow > ERROR_DISCONNECT_COUNT){ //disconnect arrow cluster
+            for (uint8_t i = 0; i < MATRIX_ROWS ; i++) {
+                matrix[i] &= 0x3FFF; //mask bits to keep
+            }
+        }
+    }else{ //no error
+        error_count_arrow = 0;
+    }
+
+    if (i2c_transaction(SLAVE_I2C_ADDRESS_NUMPAD, 0x1FFFF, 11)){ //error has occured for numpad
+        error_count_numpad++;
+        if (error_count_numpad > ERROR_DISCONNECT_COUNT){ //disconnect numpad
+            for (uint8_t i = 0; i < MATRIX_ROWS ; i++) {
+                matrix[i] &= 0x1FFFF; //mask bits to keep
+            }
+        }
+    }else{ //no error
+        error_count_numpad = 0;
+    }
+
+    matrix_scan_quantum();
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+#if (DEBOUNCING_DELAY > 0)
+    if (debouncing) return false;
+#endif
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
+    // switch blocker installed and the switch is always pressed.
+#ifdef MATRIX_MASKED
+    return matrix[row] & matrix_mask[row];
+#else
+    return matrix[row];
+#endif
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
+
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS_SCANNED; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS_SCANNED; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS_SCANNED; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif
+
+// Complete rows from other modules over i2c
+i2c_status_t i2c_transaction(uint8_t address, uint32_t mask, uint8_t col_offset) {
+    i2c_status_t err = i2c_start((address << 1) | I2C_WRITE, 10);
+    if (err) return err;
+    i2c_write(0x01, 10);
+    if (err) return err;
+
+    i2c_start((address << 1) | I2C_READ, 10);
+    if (err) return err;
+
+    err = i2c_read_ack(10);
+    if (err == 0x55) { //synchronization byte
+
+    for (uint8_t i = 0; i < MATRIX_ROWS-1 ; i++) { //assemble slave matrix in main matrix
+        matrix[i] &= mask; //mask bits to keep
+        err = i2c_read_ack(10);
+        if (err >= 0) {
+            matrix[i] |= ((uint32_t)err << (MATRIX_COLS_SCANNED + col_offset)); //add new bits at the end
+        } else {
+             return err;
+        }
+      }
+    //last read request must be followed by a NACK
+    matrix[MATRIX_ROWS - 1] &= mask; //mask bits to keep
+    err = i2c_read_nack(10);
+    if (err >= 0) {
+        matrix[MATRIX_ROWS - 1] |= ((uint32_t)err << (MATRIX_COLS_SCANNED + col_offset)); //add new bits at the end
+        } else {
+            return err;
+        }
+    } else {
+        i2c_stop(10);
+        return 1;
+    }
+
+    i2c_stop(10);
+    if (err) return err;
+
+    return 0;
+}

keyboards/dc01/left/readme.md

@@ -0,0 +1,15 @@
+# DC01 Left Half
+
+![DC01 Left Half](https://i.imgur.com/PTn0sp8.jpg)
+
+A hotpluggable four part keyboard which comes together with magnets and pogo pins! This is the left part that also acts as the master.
+
+Keyboard Maintainer: [Yiancar](https://github.com/yiancar)  
+Hardware Supported: Runs on an atmega32u4  
+Hardware Availability: [Mechboards](https://mechboards.co.uk/)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make dc01/left:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/dc01/left/rules.mk

@@ -0,0 +1,73 @@
+SRC += matrix.c \
+      ../../../drivers/avr/i2c_master.c
+
+# MCU name
+#MCU = at90usb1286
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs (+400)
+CUSTOM_MATRIX = yes         # Use custom matrix

keyboards/dc01/numpad/config.h

@@ -0,0 +1,151 @@
+/*
+Copyright 2018 Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1013
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Mechboards
+#define PRODUCT         DC01 Numpad
+#define DESCRIPTION     Numpad of DC01 keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 4
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS { B0, E6, D6, D7, B4 }
+#define MATRIX_COL_PINS { F0, B7, D2, D3 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+//#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 1

keyboards/dc01/numpad/keymaps/default/keymap.c

@@ -0,0 +1,53 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_numpad_5x4(
+    TG(1),   KC_PSLS, KC_PAST, KC_PMNS, \
+    KC_P7,   KC_P8,   KC_P9,            \
+    KC_P4,   KC_P5,   KC_P6,   KC_PPLS, \
+    KC_P1,   KC_P2,   KC_P3,            \
+      KC_P0,          KC_PDOT, KC_PENT  \
+  ),
+
+  [1] = LAYOUT_numpad_5x4(
+    _______, _______, _______, _______, \
+    KC_HOME, KC_UP,   KC_PGUP,          \
+    KC_LEFT, XXXXXXX, KC_RGHT, _______, \
+    KC_END,  KC_DOWN, KC_PGDN,          \
+      KC_INS,         KC_DEL,  _______  \
+  ),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}
+
+void led_set_user(uint8_t usb_led) {
+
+}

keyboards/dc01/numpad/keymaps/default/readme.md

@@ -0,0 +1,3 @@
+# The default keymap for DC01 Numpad
+
+When using the numpad module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/numpad/keymaps/ortho_5x4/keymap.c

@@ -0,0 +1,65 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+enum custom_keycodes {
+    KC_P00 = SAFE_RANGE
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [0] = LAYOUT_ortho_5x4(
+    TG(1),   KC_PSLS, KC_PAST, KC_PMNS, \
+    KC_P7,   KC_P8,   KC_P9,   KC_PPLS, \
+    KC_P4,   KC_P5,   KC_P6,   KC_PPLS, \
+    KC_P1,   KC_P2,   KC_P3,   KC_PENT, \
+    KC_P0,   KC_P00,  KC_PDOT, KC_PENT  \
+  ),
+
+  [1] = LAYOUT_ortho_5x4(
+    _______, _______, _______, _______, \
+    KC_HOME, KC_UP,   KC_PGUP, _______, \
+    KC_LEFT, XXXXXXX, KC_RGHT, _______, \
+    KC_END,  KC_DOWN, KC_PGDN, _______, \
+    KC_INS,  XXXXXXX, KC_DEL,  _______  \
+  ),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+    if (record->event.pressed) {
+        switch(keycode) {
+            case KC_P00:
+                // types Numpad 0 twice
+                SEND_STRING(SS_TAP(X_KP_0) SS_TAP(X_KP_0));
+                return false;
+        }
+    }
+    return true;
+};
+
+void led_set_user(uint8_t usb_led) {
+
+}

keyboards/dc01/numpad/keymaps/ortho_5x4/readme.md

@@ -0,0 +1,3 @@
+# The orthopad keymap for DC01 Numpad
+
+When using the numpad module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/numpad/matrix.c

@@ -0,0 +1,404 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stdint.h>
+#include <stdbool.h>
+#if defined(__AVR__)
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#endif
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "timer.h"
+#include "i2c_slave.h"
+#include "lufa.h"
+
+#define SLAVE_I2C_ADDRESS 0x21
+
+/* Set 0 if debouncing isn't needed */
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+#ifdef MATRIX_MASKED
+    extern const matrix_row_t matrix_mask[];
+#endif
+
+#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+void matrix_init(void) {
+
+    // initialize row and col
+#if (DIODE_DIRECTION == COL2ROW)
+    unselect_rows();
+    init_cols();
+#elif (DIODE_DIRECTION == ROW2COL)
+    unselect_cols();
+    init_rows();
+#endif
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+#if (DIODE_DIRECTION == COL2ROW)
+
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+
+#       else
+            read_cols_on_row(matrix, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix, current_col);
+#       endif
+
+    }
+
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+            debouncing = false;
+        }
+#   endif
+        
+        if (USB_DeviceState != DEVICE_STATE_Configured){
+            txbuffer[1] = 0x55;
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++){
+                txbuffer[i+2] = matrix[i]; //send matrix over i2c
+            }
+        }
+    
+    matrix_scan_quantum();
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+#if (DEBOUNCING_DELAY > 0)
+    if (debouncing) return false;
+#endif
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
+    // switch blocker installed and the switch is always pressed.
+#ifdef MATRIX_MASKED
+    return matrix[row] & matrix_mask[row];
+#else
+    return matrix[row];
+#endif
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
+
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif
+
+//this replases tmk code
+void matrix_setup(void){
+    
+    if (USB_DeviceState != DEVICE_STATE_Configured){
+        i2c_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
+        sei(); //enable interupts
+    }
+}

keyboards/dc01/numpad/numpad.c

@@ -0,0 +1,43 @@
+/* Copyright 2018 REPLACE_WITH_YOUR_NAME
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "numpad.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+	led_set_user(usb_led);
+}

keyboards/dc01/numpad/numpad.h

@@ -0,0 +1,56 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef NUMPAD_H
+#define NUMPAD_H
+
+#include "quantum.h"
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+#define LAYOUT_numpad_5x4( \
+    K00, K01, K02, K03, \
+    K10, K11, K12, K13, \
+    K20, K21, K22,      \
+    K30, K31, K32,      \
+    K40,      K42, K43  \
+) \
+{ \
+    { K00, K01, K02, K03 }, \
+    { K10, K11, K12, K13 }, \
+    { K20, K21, K22, XXX }, \
+    { K30, K31, K32, XXX }, \
+    { K40, XXX, K42, K43 }  \
+}
+
+#define LAYOUT_ortho_5x4( \
+    K00, K01, K02, K03, \
+    K10, K11, K12, K13, \
+    K20, K21, K22, K23, \
+    K30, K31, K32, K33, \
+    K40, K41, K42, K43  \
+) \
+{ \
+    { K00, K01, K02, K03 }, \
+    { K10, K11, K12, K13 }, \
+    { K20, K21, K22, K23 }, \
+    { K30, K31, K32, K33 }, \
+    { K40, K41, K42, K43 }  \
+}
+
+#endif

keyboards/dc01/numpad/readme.md

@@ -0,0 +1,15 @@
+# DC01 Numpad
+
+![DC01 Numpad](https://i.imgur.com/PTn0sp8.jpg)
+
+A hotpluggable four part keyboard which comes together with magnets and pogo pins! This is the numpad
+
+Keyboard Maintainer: [Yiancar](https://github.com/yiancar)  
+Hardware Supported: Runs on an atmega32u4  
+Hardware Availability: [Mechboards](https://mechboards.co.uk/)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make dc01/numpad:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/dc01/numpad/rules.mk

@@ -0,0 +1,74 @@
+SRC += matrix.c \
+       ../../../drivers/avr/i2c_slave.c
+
+# MCU name
+#MCU = at90usb1286
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no      # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no 		# Enable support for HD44780 based LCDs (+400)
+NO_USB_STARTUP_CHECK = yes  # Disable initialization only when usb is plugged in
+CUSTOM_MATRIX = yes         # Use custom matrix

keyboards/dc01/right/config.h

@@ -0,0 +1,151 @@
+/*
+Copyright 2018 Yiancar
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x1011
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Mechboards
+#define PRODUCT         DC01 Right
+#define DESCRIPTION     Right half of DC01 keyboard
+
+/* key matrix size */
+#define MATRIX_ROWS 5
+#define MATRIX_COLS 8
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS { C7, C6, B6, B5, B4 }
+#define MATRIX_COL_PINS { F1, E6, F6, F5, F4, D4, D6, D7 }
+#define UNUSED_PINS
+
+/* COL2ROW, ROW2COL, or CUSTOM_MATRIX */
+#define DIODE_DIRECTION COL2ROW
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCING_DELAY 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * Magic Key Options
+ *
+ * Magic keys are hotkey commands that allow control over firmware functions of
+ * the keyboard. They are best used in combination with the HID Listen program,
+ * found here: https://www.pjrc.com/teensy/hid_listen.html
+ *
+ * The options below allow the magic key functionality to be changed. This is
+ * useful if your keyboard/keypad is missing keys and you want magic key support.
+ *
+ */
+
+/* key combination for magic key command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+/*
+ * MIDI options
+ */
+
+/* Prevent use of disabled MIDI features in the keymap */
+//#define MIDI_ENABLE_STRICT 1
+
+/* enable basic MIDI features:
+   - MIDI notes can be sent when in Music mode is on
+*/
+//#define MIDI_BASIC
+
+/* enable advanced MIDI features:
+   - MIDI notes can be added to the keymap
+   - Octave shift and transpose
+   - Virtual sustain, portamento, and modulation wheel
+   - etc.
+*/
+//#define MIDI_ADVANCED
+
+/* override number of MIDI tone keycodes (each octave adds 12 keycodes and allocates 12 bytes) */
+//#define MIDI_TONE_KEYCODE_OCTAVES 1

keyboards/dc01/right/keymaps/default/keymap.c

@@ -0,0 +1,38 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ANSI( /* Base */
+            KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL, KC_BSPC, \
+    KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,KC_BSLS, \
+    KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,KC_QUOT,         KC_ENT,  \
+    KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH,                 KC_RSFT, \
+    KC_SPC,    KC_SPC,     KC_RALT, KC_RGUI,     KC_RGUI,    KC_RCTL  \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/dc01/right/keymaps/default/readme.md

@@ -0,0 +1,3 @@
+# The default ANSI keymap for DC01 Right
+
+When using the right module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/right/keymaps/hhkb_ansi/keymap.c

@@ -0,0 +1,46 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_HHKB_ANSI( /* Base */
+            KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL, KC_BSLS, KC_GRV, \
+    KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,KC_BSPC,         \
+    KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,KC_QUOT,         KC_ENT,          \
+    KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH,         KC_RSFT,MO(1),           \
+    KC_SPC,    KC_SPC,     KC_RALT, KC_RGUI,     KC_RGUI,    KC_RCTL          \
+),
+
+[1] = LAYOUT_HHKB_ANSI(
+            KC_F7,    KC_F8,    KC_F9,    KC_F10,   KC_F11,   KC_F12,   KC_INS,   KC_DEL, \
+    KC_TRNS,KC_TRNS,  KC_PSCR,  KC_SLCK,  KC_PAUS,  KC_UP,    KC_TRNS,  KC_BSPC,          \
+    KC_PAST,KC_PSLS,  KC_HOME,  KC_PGUP,  KC_LEFT,  KC_RGHT,            KC_PENT,          \
+    KC_PPLS,KC_PMNS,  KC_END,   KC_PGDN,  KC_DOWN,            KC_TRNS,  KC_TRNS,          \
+    KC_TRNS,    KC_TRNS,     KC_TRNS, KC_TRNS,     KC_TRNS,             KC_TRNS,          \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/dc01/right/keymaps/hhkb_ansi/readme.md

@@ -0,0 +1,3 @@
+# The default HHKB ANSI keymap for DC01 Right
+
+When using the right module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/right/keymaps/hhkb_iso/keymap.c

@@ -0,0 +1,46 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_HHKB_ISO( /* Base */
+            KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL, KC_BSLS, KC_BSPC, \
+    KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,                  \
+    KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,KC_QUOT, KC_NUHS,KC_ENT,           \
+    KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH,         KC_RSFT,MO(1),            \
+    KC_SPC,    KC_SPC,     KC_RALT, KC_RGUI,     KC_RGUI,    KC_RCTL           \
+),
+
+[1] = LAYOUT_HHKB_ISO(
+            KC_F7,    KC_F8,    KC_F9,    KC_F10,   KC_F11,   KC_F12,   KC_INS,   KC_DEL, \
+    KC_TRNS,KC_TRNS,  KC_PSCR,  KC_SLCK,  KC_PAUS,  KC_UP,    KC_TRNS,                    \
+    KC_PAST,KC_PSLS,  KC_HOME,  KC_PGUP,  KC_LEFT,  KC_RGHT,  KC_TRNS,  KC_PENT,          \
+    KC_PPLS,KC_PMNS,  KC_END,   KC_PGDN,  KC_DOWN,            KC_TRNS,  KC_TRNS,          \
+    KC_TRNS,    KC_TRNS,     KC_TRNS, KC_TRNS,     KC_TRNS,             KC_TRNS,          \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/dc01/right/keymaps/hhkb_iso/readme.md

@@ -0,0 +1,3 @@
+# The default HHKB ISO keymap for DC01 Right
+
+When using the right module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/right/keymaps/iso/keymap.c

@@ -0,0 +1,38 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ISO( /* Base */
+            KC_7,   KC_8,   KC_9,   KC_0,   KC_MINS, KC_EQL, KC_BSPC, \
+    KC_Y,   KC_U,   KC_I,   KC_O,   KC_P,   KC_LBRC, KC_RBRC,         \
+    KC_H,   KC_J,   KC_K,   KC_L,   KC_SCLN,KC_QUOT, KC_NUHS,KC_ENT,  \
+    KC_N,   KC_M,   KC_COMM,KC_DOT, KC_SLSH,                 KC_RSFT, \
+    KC_SPC,    KC_SPC,     KC_RALT, KC_RGUI,     KC_RGUI,    KC_RCTL  \
+),
+};
+
+void matrix_init_user(void) {
+
+}
+
+void matrix_scan_user(void) {
+
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  return true;
+}

keyboards/dc01/right/keymaps/iso/readme.md

@@ -0,0 +1,3 @@
+# The default ISO keymap for DC01 Right
+
+When using the right module individually, this keymap will take effect. When using the keyboard as a whole please edit the keymap of the left module.

keyboards/dc01/right/matrix.c

@@ -0,0 +1,404 @@
+/*
+Copyright 2012 Jun Wako
+Copyright 2014 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+#include <stdint.h>
+#include <stdbool.h>
+#if defined(__AVR__)
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#endif
+#include "wait.h"
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "timer.h"
+#include "i2c_slave.h"
+#include "lufa.h"
+
+#define SLAVE_I2C_ADDRESS 0x19
+
+/* Set 0 if debouncing isn't needed */
+
+#ifndef DEBOUNCING_DELAY
+#   define DEBOUNCING_DELAY 5
+#endif
+
+#if (DEBOUNCING_DELAY > 0)
+    static uint16_t debouncing_time;
+    static bool debouncing = false;
+#endif
+
+#if (MATRIX_COLS <= 8)
+#    define print_matrix_header()  print("\nr/c 01234567\n")
+#    define print_matrix_row(row)  print_bin_reverse8(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop(matrix[i])
+#    define ROW_SHIFTER ((uint8_t)1)
+#elif (MATRIX_COLS <= 16)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse16(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop16(matrix[i])
+#    define ROW_SHIFTER ((uint16_t)1)
+#elif (MATRIX_COLS <= 32)
+#    define print_matrix_header()  print("\nr/c 0123456789ABCDEF0123456789ABCDEF\n")
+#    define print_matrix_row(row)  print_bin_reverse32(matrix_get_row(row))
+#    define matrix_bitpop(i)       bitpop32(matrix[i])
+#    define ROW_SHIFTER  ((uint32_t)1)
+#endif
+
+#ifdef MATRIX_MASKED
+    extern const matrix_row_t matrix_mask[];
+#endif
+
+#if (DIODE_DIRECTION == ROW2COL) || (DIODE_DIRECTION == COL2ROW)
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+#endif
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+    static void init_cols(void);
+    static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row);
+    static void unselect_rows(void);
+    static void select_row(uint8_t row);
+    static void unselect_row(uint8_t row);
+#elif (DIODE_DIRECTION == ROW2COL)
+    static void init_rows(void);
+    static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col);
+    static void unselect_cols(void);
+    static void unselect_col(uint8_t col);
+    static void select_col(uint8_t col);
+#endif
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void) {
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void) {
+    return MATRIX_COLS;
+}
+
+void matrix_init(void) {
+
+    // initialize row and col
+#if (DIODE_DIRECTION == COL2ROW)
+    unselect_rows();
+    init_cols();
+#elif (DIODE_DIRECTION == ROW2COL)
+    unselect_cols();
+    init_rows();
+#endif
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    matrix_init_quantum();
+}
+
+uint8_t matrix_scan(void)
+{
+#if (DIODE_DIRECTION == COL2ROW)
+
+    // Set row, read cols
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_cols_on_row(matrix_debouncing, current_row);
+
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+
+#       else
+            read_cols_on_row(matrix, current_row);
+#       endif
+
+    }
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+    // Set col, read rows
+    for (uint8_t current_col = 0; current_col < MATRIX_COLS; current_col++) {
+#       if (DEBOUNCING_DELAY > 0)
+            bool matrix_changed = read_rows_on_col(matrix_debouncing, current_col);
+            if (matrix_changed) {
+                debouncing = true;
+                debouncing_time = timer_read();
+            }
+#       else
+             read_rows_on_col(matrix, current_col);
+#       endif
+
+    }
+
+#endif
+
+#   if (DEBOUNCING_DELAY > 0)
+        if (debouncing && (timer_elapsed(debouncing_time) > DEBOUNCING_DELAY)) {
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+                matrix[i] = matrix_debouncing[i];
+            }
+            debouncing = false;
+        }
+#   endif
+        
+        if (USB_DeviceState != DEVICE_STATE_Configured){
+            txbuffer[1] = 0x55;
+            for (uint8_t i = 0; i < MATRIX_ROWS; i++){
+                txbuffer[i+2] = matrix[i]; //send matrix over i2c
+            }
+        }
+    
+    matrix_scan_quantum();
+    return 1;
+}
+
+bool matrix_is_modified(void)
+{
+#if (DEBOUNCING_DELAY > 0)
+    if (debouncing) return false;
+#endif
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    // Matrix mask lets you disable switches in the returned matrix data. For example, if you have a
+    // switch blocker installed and the switch is always pressed.
+#ifdef MATRIX_MASKED
+    return matrix[row] & matrix_mask[row];
+#else
+    return matrix[row];
+#endif
+}
+
+void matrix_print(void)
+{
+    print_matrix_header();
+
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        print_matrix_row(row);
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += matrix_bitpop(i);
+    }
+    return count;
+}
+
+
+
+#if (DIODE_DIRECTION == COL2ROW)
+
+static void init_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_cols_on_row(matrix_row_t current_matrix[], uint8_t current_row)
+{
+    // Store last value of row prior to reading
+    matrix_row_t last_row_value = current_matrix[current_row];
+
+    // Clear data in matrix row
+    current_matrix[current_row] = 0;
+
+    // Select row and wait for row selecton to stabilize
+    select_row(current_row);
+    wait_us(30);
+
+    // For each col...
+    for(uint8_t col_index = 0; col_index < MATRIX_COLS; col_index++) {
+
+        // Select the col pin to read (active low)
+        uint8_t pin = col_pins[col_index];
+        uint8_t pin_state = (_SFR_IO8(pin >> 4) & _BV(pin & 0xF));
+
+        // Populate the matrix row with the state of the col pin
+        current_matrix[current_row] |=  pin_state ? 0 : (ROW_SHIFTER << col_index);
+    }
+
+    // Unselect row
+    unselect_row(current_row);
+
+    return (last_row_value != current_matrix[current_row]);
+}
+
+static void select_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_row(uint8_t row)
+{
+    uint8_t pin = row_pins[row];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#elif (DIODE_DIRECTION == ROW2COL)
+
+static void init_rows(void)
+{
+    for(uint8_t x = 0; x < MATRIX_ROWS; x++) {
+        uint8_t pin = row_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+static bool read_rows_on_col(matrix_row_t current_matrix[], uint8_t current_col)
+{
+    bool matrix_changed = false;
+
+    // Select col and wait for col selecton to stabilize
+    select_col(current_col);
+    wait_us(30);
+
+    // For each row...
+    for(uint8_t row_index = 0; row_index < MATRIX_ROWS; row_index++)
+    {
+
+        // Store last value of row prior to reading
+        matrix_row_t last_row_value = current_matrix[row_index];
+
+        // Check row pin state
+        if ((_SFR_IO8(row_pins[row_index] >> 4) & _BV(row_pins[row_index] & 0xF)) == 0)
+        {
+            // Pin LO, set col bit
+            current_matrix[row_index] |= (ROW_SHIFTER << current_col);
+        }
+        else
+        {
+            // Pin HI, clear col bit
+            current_matrix[row_index] &= ~(ROW_SHIFTER << current_col);
+        }
+
+        // Determine if the matrix changed state
+        if ((last_row_value != current_matrix[row_index]) && !(matrix_changed))
+        {
+            matrix_changed = true;
+        }
+    }
+
+    // Unselect col
+    unselect_col(current_col);
+
+    return matrix_changed;
+}
+
+static void select_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) |=  _BV(pin & 0xF); // OUT
+    _SFR_IO8((pin >> 4) + 2) &= ~_BV(pin & 0xF); // LOW
+}
+
+static void unselect_col(uint8_t col)
+{
+    uint8_t pin = col_pins[col];
+    _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+    _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+}
+
+static void unselect_cols(void)
+{
+    for(uint8_t x = 0; x < MATRIX_COLS; x++) {
+        uint8_t pin = col_pins[x];
+        _SFR_IO8((pin >> 4) + 1) &= ~_BV(pin & 0xF); // IN
+        _SFR_IO8((pin >> 4) + 2) |=  _BV(pin & 0xF); // HI
+    }
+}
+
+#endif
+
+//this replases tmk code
+void matrix_setup(void){
+    
+    if (USB_DeviceState != DEVICE_STATE_Configured){
+        i2c_init(SLAVE_I2C_ADDRESS); //setup address of slave i2c
+        sei(); //enable interupts
+    }
+}

keyboards/dc01/right/readme.md

@@ -0,0 +1,15 @@
+# DC01 Right Half
+
+![DC01 Right Half](https://i.imgur.com/PTn0sp8.jpg)
+
+A hotpluggable four part keyboard which comes together with magnets and pogo pins! This is the right part
+
+Keyboard Maintainer: [Yiancar](https://github.com/yiancar)  
+Hardware Supported: Runs on an atmega32u4  
+Hardware Availability: [Mechboards](https://mechboards.co.uk/)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make dc01/right:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.

keyboards/dc01/right/right.c

@@ -0,0 +1,43 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#include "right.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+
+	matrix_init_user();
+}
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+
+	matrix_scan_user();
+}
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	// put your per-action keyboard code here
+	// runs for every action, just before processing by the firmware
+
+	return process_record_user(keycode, record);
+}
+
+void led_set_kb(uint8_t usb_led) {
+	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
+
+	led_set_user(usb_led);
+}

keyboards/dc01/right/right.h

@@ -0,0 +1,86 @@
+/* Copyright 2018 Yiancar
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef RIGHT_H
+#define RIGHT_H
+
+#include "quantum.h"
+
+#define XXX KC_NO
+
+// This a shortcut to help you visually see your layout.
+// The first section contains all of the arguments
+// The second converts the arguments into a two-dimensional array
+#define LAYOUT_ANSI( \
+         K01, K02, K03, K04, K05, K06, K07, \
+    K10, K11, K12, K13, K14, K15, K16, K17, \
+    K20, K21, K22, K23, K24, K25,      K27, \
+    K30, K31, K32, K33, K34,           K37, \
+    K40, K41, K42, K43, K44, K45            \
+) \
+{ \
+    { XXX, K01, K02, K03, K04, K05, K06, K07 }, \
+    { K10, K11, K12, K13, K14, K15, K16, K17 }, \
+    { K20, K21, K22, K23, K24, K25, XXX, K27 }, \
+    { K30, K31, K32, K33, K34, XXX, XXX, K37 }, \
+    { K40, K41, K42, K43, K44, K45, XXX, XXX }  \
+}
+
+#define LAYOUT_ISO( \
+         K01, K02, K03, K04, K05, K06, K07, \
+    K10, K11, K12, K13, K14, K15, K16,      \
+    K20, K21, K22, K23, K24, K25, K26, K27, \
+    K30, K31, K32, K33, K34,           K37, \
+    K40, K41, K42, K43, K44, K45            \
+) \
+{ \
+    { XXX, K01, K02, K03, K04, K05, K06, K07 }, \
+    { K10, K11, K12, K13, K14, K15, K16, XXX }, \
+    { K20, K21, K22, K23, K24, K25, K26, K27 }, \
+    { K30, K31, K32, K33, K34, XXX, XXX, K37 }, \
+    { K40, K41, K42, K43, K44, K45, XXX, XXX }  \
+}
+
+#define LAYOUT_HHKB_ANSI( \
+         K01, K02, K03, K04, K05, K06, K07, K00, \
+    K10, K11, K12, K13, K14, K15, K16, K17,      \
+    K20, K21, K22, K23, K24, K25,      K27,      \
+    K30, K31, K32, K33, K34,      K36, K37,      \
+    K40, K41, K42, K43, K44, K45                 \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07 }, \
+    { K10, K11, K12, K13, K14, K15, K16, K17 }, \
+    { K20, K21, K22, K23, K24, K25, XXX, K27 }, \
+    { K30, K31, K32, K33, K34, XXX, K36, K37 }, \
+    { K40, K41, K42, K43, K44, K45, XXX, XXX }  \
+}
+
+#define LAYOUT_HHKB_ISO( \
+         K01, K02, K03, K04, K05, K06, K07, K00, \
+    K10, K11, K12, K13, K14, K15, K16,           \
+    K20, K21, K22, K23, K24, K25, K26, K27,      \
+    K30, K31, K32, K33, K34,      K36, K37,      \
+    K40, K41, K42, K43, K44, K45                 \
+) \
+{ \
+    { K00, K01, K02, K03, K04, K05, K06, K07 }, \
+    { K10, K11, K12, K13, K14, K15, K16, XXX }, \
+    { K20, K21, K22, K23, K24, K25, K26, K27 }, \
+    { K30, K31, K32, K33, K34, XXX, K36, K37 }, \
+    { K40, K41, K42, K43, K44, K45, XXX, XXX }  \
+}
+
+#endif

keyboards/dc01/right/rules.mk

@@ -0,0 +1,74 @@
+SRC += matrix.c \
+       ../../../drivers/avr/i2c_slave.c
+
+# MCU name
+#MCU = at90usb1286
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no         # Commands for debug and configuration
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = yes           # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality on B7 by default
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+AUDIO_ENABLE = no           # Audio output on port C6
+FAUXCLICKY_ENABLE = no      # Use buzzer to emulate clicky switches
+HD44780_ENABLE = no         # Enable support for HD44780 based LCDs (+400)
+NO_USB_STARTUP_CHECK = yes  # Disable initialization only when usb is plugged in
+CUSTOM_MATRIX = yes         # Use custom matrix

keyboards/dz60/keymaps/eric/keymap.c

@@ -23,7 +23,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 		KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSPC,
 		KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
 		KC_LSFT, KC_NO, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, MO(1),
-		KC_CAPS, KC_LGUI, KC_LALT, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_RALT, KC_RGUI, KC_RGUI, KC_RCTL),
+		KC_CAPS, KC_LALT, KC_LGUI, KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_RGUI, KC_RALT, KC_RALT, KC_RCTL),
 
 
 

keyboards/e6v2/le/keymaps/eric/keymap.c

@@ -0,0 +1,31 @@
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  /*rBase layer */
+  [0] = LAYOUT(
+      KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,     KC_6,    KC_7,    KC_8,      KC_9,    KC_0,    KC_MINS, KC_EQL,  KC_BSLS, KC_GRV,
+      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,     KC_Y,    KC_U,    KC_I,      KC_O,    KC_P,    KC_LBRC, KC_RBRC, KC_BSPC,
+      KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,     KC_H,    KC_J,    KC_K,      KC_L,    KC_SCLN, KC_QUOT, KC_ENT,
+      KC_LSFT, KC_NUBS, KC_Z,    KC_X,    KC_C,    KC_V,     KC_B,    KC_N,    KC_M,      KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, KC_RSFT, MO(1),
+      KC_LCTL, KC_LALT, KC_LGUI, KC_LGUI,          KC_SPACE,                   KC_SPACE,  KC_RGUI, KC_RGUI, KC_RALT, KC_RCTL, KC_RCTL
+      ),
+
+  /* Function layer */
+  [1] = LAYOUT(
+      KC_CAPS, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,    KC_F6,   KC_F7,   KC_F8,     KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_INS,  KC_DEL,
+      KC_TRNS, KC_PGUP, KC_UP,   KC_PGDN, KC_HOME, KC_AMPR,  KC_TILD, KC_TRNS, KC_TRNS,   KC_TRNS, KC_PSCR, KC_UP,   KC_DEL,  KC_BSPC,
+      KC_TRNS, KC_LEFT, KC_DOWN, KC_RGHT, KC_END,  KC_ASTR,  KC_TRNS, KC_TRNS, KC_PGUP,   KC_HOME, KC_LEFT, KC_RGHT, KC_TRNS,
+      KC_TRNS, KC_TRNS, KC_UNDS, KC_PLUS, KC_LPRN, KC_RPRN,  KC_PIPE, KC_TRNS, KC_TRNS,   KC_PGDN, KC_END,  KC_DOWN, KC_TRNS, KC_TRNS, KC_TRNS,
+      KC_TRNS, KC_TRNS, KC_TRNS, KC_TRNS,          KC_TRNS,                    KC_TRNS,   KC_TRNS, KC_TRNS, MO(2),   MO(2),   KC_TRNS
+      ),
+
+  /* Reset layer */
+  [2] = LAYOUT(
+      RESET,   KC_A,    KC_NO,   KC_NO,   KC_NO,   KC_NO,    KC_NO,   KC_NO,   KC_NO,     KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,
+      KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,    KC_NO,   KC_NO,   KC_NO,     KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,
+      KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,    KC_NO,   KC_NO,   KC_NO,     KC_NO,   KC_NO,   KC_NO,   KC_NO, 
+      KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,    KC_NO,   KC_NO,   KC_NO,     KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO,
+      KC_NO,   KC_NO,   KC_NO,   KC_NO,            KC_NO,                      KC_NO,     KC_NO,   KC_NO,   KC_NO,   KC_NO,   KC_NO
+      ),
+
+};

keyboards/e6v2/le/le.c

@@ -23,7 +23,7 @@ bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
 
 void led_set_kb(uint8_t usb_led) {
 	// put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
-	DDRB |= (1<<6);
+	DDRB |= (1<<7);
 	if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
 			// output low
 			DDRB |= (1<<2);
@@ -33,21 +33,12 @@ void led_set_kb(uint8_t usb_led) {
 			DDRB &= ~(1<<2);
 			PORTB &= ~(1<<2);
 		}
-	// DDRB |= (1<<7);
-	// DDRB |= (1<<1);
-	// DDRB |= (1<<3);
-	// DDRE |= (1<<6);
 	if (usb_led == 0){
-		PORTB |= (1<<6);
-		// PORTB |= (1<<7);
-		// PORTB |= (1<<1);
-		// PORTB |= (1<<3);
-		// PORTE |= (1<<6);
+		PORTB |= (1<<7);
 	}
 	else{
-		PORTB &= ~(1<<6);
-		// PORTB &= ~(1<<7);
+		PORTB &= ~(1<<7);
 	}
-    
+
 	led_set_user(usb_led);
 }

keyboards/e6v2/le/le.h

@@ -4,7 +4,7 @@
 #include "../e6v2.h"
 
 #define LAYOUT( \
-    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0D, K0E, \
+    K00, K01, K02, K03, K04, K05, K06, K07, K08, K09, K0A, K0B, K0C, K0E, K0D, \
     K10,      K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, K1C, K1D, K1E, \
     K20,      K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, K2C, K2D,      \
     K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, K3C, K3D, K3E, \

keyboards/ergo42/keymaps/default-underglow/config.h

@@ -0,0 +1,43 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+// Underglow
+#undef RGBLED_NUM
+#define RGBLED_NUM 14    // Number of LEDs
+#define RGBLIGHT_ANIMATIONS
+#define RGBLIGHT_SLEEP
+
+#endif

keyboards/ergo42/keymaps/default-underglow/keymap.c

@@ -0,0 +1,133 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define BASE 0
+#define META 1
+#define SYMB 2
+#define GAME 3
+#define RGB  4
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+#ifdef RGBLIGHT_ENABLE
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+#endif
+
+enum custom_keycodes {
+  RGB_RST = SAFE_RANGE,
+  TAP_ANIM
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* BASE
+   * ,------------------------------------------------.   ,------------------------------------------------.
+   * | ESC  | Tab  |   Q  |   W  |   E  |   R  |  T   |   |  Y   |   U  |   I  |   O  |   P  |   [  | Bksp |
+   * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+   * | Del  | RCtrl|   A  |   S  |   D  |   F  |  G   |   |  H   |   J  |   K  |   L  |   ;  |   ]  | Enter|
+   * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+   * | RGB  | LSft |   Z  |   X  |   C  |   V  |  B   |   |  N   |   M  |   ,  |   .  |   /  |  UP  | RSft |
+   * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+   * | META | LCtrl|   `  |   \  | LAlt | LGUI |Space |   |Space |   '  |   -  |   =  | LEFT | DOWN | RIGHT|
+   * `------------------------------------------------'   `------------------------------------------------'
+   */
+  [BASE] = LAYOUT( \
+    KC_ESC,   KC_TAB,  KC_Q,   KC_W,    KC_E,    KC_R,    KC_T,   KC_Y,   KC_U,    KC_I,    KC_O,   KC_P,    KC_LBRC, KC_BSPC, \
+    KC_DELT,  KC_RCTL, KC_A,   KC_S,    KC_D,    KC_F,    KC_G,   KC_H,   KC_J,    KC_K,    KC_L,   KC_SCLN, KC_RBRC, KC_ENT, \
+    MO(RGB),  KC_LSFT, KC_Z,   KC_X,    KC_C,    KC_V,    KC_B,   KC_N,   KC_M,    KC_COMM, KC_DOT, KC_SLSH, KC_UP,   KC_RSFT, \
+    MO(META), KC_LCTL, KC_GRV, KC_BSLS, KC_LALT, KC_LGUI, KC_SPC, KC_SPC, KC_QUOT, KC_MINS, KC_EQL, KC_LEFT, KC_DOWN, KC_RGHT \
+  ),
+
+  /* META
+   * ,------------------------------------------------.   ,------------------------------------------------.
+   * | Reset|   1  |   2  |   3  |   4  |   5  |  [   |   |  ]   |   6  |   7  |   8  |   9  |   0  | Bksp |
+   * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+   * | Del  |  F1  |      |Muhen | Henk |      |      |   | Left | Down |  Up  |Right |      |      | Enter|
+   * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+   * | RGB  |  F2  |  F3  |  F4  |  F5  |  F6  |  {   |   |  }   |  F7  |  F8  |  F9  | F10  | F11  | F12  |
+   * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+   * | META | LCtrl|   `  |   \  | LAlt | LGUI |Space |   |Space |   '  |   -  |   =  |      |      |      |
+   * `------------------------------------------------'   `------------------------------------------------'
+   */
+  [META] = LAYOUT( \
+    RESET,   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_LBRC,    KC_RBRC,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    _______, \
+    _______, KC_F1,   XXXXXXX, KC_MHEN, KC_HENK, XXXXXXX, XXXXXXX,    KC_LEFT,    KC_DOWN, KC_UP,   KC_RGHT, XXXXXXX, XXXXXXX, _______, \
+    _______, KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   S(KC_LBRC), S(KC_RBRC), KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12, \
+    _______, _______, _______, _______, _______, _______, _______,    _______,    _______, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX \
+  ),
+
+  /* SYMB
+   * ,------------------------------------------------.   ,------------------------------------------------.
+   * | ESC  |   !  |   @  |   #  |   $  |   %  |  [   |   |  ]   |   ^  |   &  |   *  |   (  |   )  | Bksp |
+   * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+   * | Del  |      |      |      |      |      |  (   |   |  )   |      |      |      |      |      | Enter|
+   * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+   * | RGB  |      |      |      |      |      |  {   |   |  }   |      |      |      |      |  UP  | Sft  |
+   * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+   * | META | LCtrl|   `  |   \  | LAlt | LGUI |Space |   |Space |   '  |   -  |   =  | LEFT | DOWN | RIGHT|
+   * `------------------------------------------------'   `------------------------------------------------'
+   */
+  [SYMB] = LAYOUT( \
+    _______, S(KC_1), S(KC_2), S(KC_3), S(KC_4), S(KC_5), KC_LBRC,    KC_RBRC,    S(KC_6), S(KC_7), S(KC_8), S(KC_9), S(KC_0), _______, \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, S(KC_9),    S(KC_0),    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, S(KC_LBRC), S(KC_RBRC), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______, \
+    _______, _______, _______, _______, _______, _______, _______,    _______,    _______, _______, _______, _______, _______, _______ \
+  ),
+
+  /* RGB
+   * ,------------------------------------------------.   ,------------------------------------------------.
+   * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+   * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |   |      | TOG  | HUI  | SAI  | VAI  |HUANIM|      |
+   * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |   |      | MOD  | HUD  | SAD  | VAD  |RESET |      |
+   * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |   |      |      |      |      |      |=>RGB |      |
+   * `------------------------------------------------'   `------------------------------------------------'
+   */
+  [RGB] = LAYOUT( \
+    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
+    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, TAP_ANIM,XXXXXXX, \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_MOD, RGB_HUI, RGB_SAD, RGB_VAD, RGB_RST, XXXXXXX, \
+    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX \
+  )
+
+};
+
+bool isTapAnim = false;
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case RGB_MOD:
+      if (record->event.pressed) {
+        isTapAnim = false;
+      }
+      break;
+    case RGB_RST:
+      #ifdef RGBLIGHT_ENABLE
+        if (record->event.pressed) {
+          eeconfig_update_rgblight_default();
+          rgblight_enable();
+        }
+      #endif
+      break;
+    case TAP_ANIM:
+      if (record->event.pressed) {
+        isTapAnim = !isTapAnim;
+      }
+      break;
+  }
+
+  if (isTapAnim) {
+    rgblight_mode_noeeprom(1);
+    uint16_t hue = (rgblight_config.hue + 5) % 360;
+    rgblight_sethsv_noeeprom(hue, rgblight_config.sat, rgblight_config.val);
+  }
+
+  return true;
+}
+

keyboards/ergo42/keymaps/default-underglow/rules.mk

@@ -0,0 +1 @@
+RGBLIGHT_ENABLE = yes

keyboards/ergo42/keymaps/ichi-t/config.h

@@ -0,0 +1,37 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define MASTER_RIGHT
+// #define EE_HANDS
+
+#endif

keyboards/ergo42/keymaps/ichi-t/keymap.c

@@ -0,0 +1,112 @@
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+#define _CMOVE 3
+#define _WIN 4
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* QWERTY
+ * ,------------------------------------------------.   ,------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  | PGUP |   | PGDN |   Y  |   U  |   I  |   O  |   P  | BSPC |
+ * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+ * | Ctrl |   A  |   S  |   D  |   F  |   G  |  <-  |   |  ->  |   H  |   J  |   K  |   L  |   ;  |  :   |
+ * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+ * | Sft  |   Z  |   X  |   C  |   V  |   B  | HOME |   | END  |   N  |   M  |   ,  |   .  |   /  |ET/SFT|
+ * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+ * | ESC  | WIN  | ALT  | ALT  | GUI  |LOWER |Space |   |Space |RAISE | GUI  | HOME | LEFT | RGHT | CMOVE|
+ * `------------------------------------------------'   `------------------------------------------------'
+ */
+
+[_QWERTY] = LAYOUT( \
+  KC_TAB,   KC_Q,    KC_W,   KC_E,    KC_R,    KC_T,       KC_PGUP, KC_PGDN, KC_Y,       KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  KC_LCTL,  KC_A,    KC_S,   KC_D,    KC_F,    KC_G,       KC_LEFT, KC_RGHT, KC_H,       KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  KC_LSFT,  KC_Z,    KC_X,   KC_C,    KC_V,    KC_B,       KC_HOME, KC_END,  KC_N,       KC_M,    KC_COMM, KC_DOT,  KC_SLSH, RSFT_T(KC_ENT), \
+  KC_ESC, TT(_WIN), KC_LALT, KC_LALT, KC_LGUI, MO(_LOWER), KC_SPC,  KC_SPC,  MO(_RAISE), KC_RGUI, KC_RCTL, KC_RSFT, KC_RALT, MO(_CMOVE)
+),
+
+/* RAISE
+ * ,------------------------------------------------.   ,------------------------------------------------.
+ * | GRV  |  1   |  2   |  3   |  4   |  5   | HOME |   | END  |  6   |  7   |  8   |  9   |  0   | DEL  |
+ * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  <-  |   |  ->  |  F6  | MINS | EQL  | LBRC | RBRC | BSLS |
+ * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  | F10  | F11  | PGUP |   | PGDN | F12  |      |      |      |      |      |
+ * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |Space |   |Space |      |      |      |      |      | Alt+~|
+ * `------------------------------------------------'   `------------------------------------------------'
+ */
+[_RAISE] = LAYOUT( \
+  KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    _______, _______, KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   _______, _______, KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, KC_F12,  _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RALT(KC_GRV)
+),
+
+
+/* LOWER
+ * ,------------------------------------------------.   ,------------------------------------------------.
+ * |   ~  |   !  |  @   |   #  |  $   |   %  |      |   |      |   ^  |   &  |   *  |   (  |   )  | DEL  |
+ * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |      |   |  UP  |  F6  |  _   |  +   |  {   |   }  |  |   |
+ * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  | F10  | F11  |      |   | DOWN | F12  |      | PGUP | HOME |  UP  | END  |
+ * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      |      | PGDN | LEFT | DOWN | RGHT |
+ * `------------------------------------------------'   `------------------------------------------------'
+ */
+
+[_LOWER] = LAYOUT( \
+  KC_TILD, KC_EXLM, KC_AT,    KC_HASH, KC_DLR,  KC_PERC, _______, _______, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
+  _______, KC_F1,   KC_F2,    KC_F3,   KC_F4,   KC_F5,   _______, KC_UP,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______,  KC_F7,  KC_F8,    KC_F9,   KC_F10,  KC_F11,  _______, KC_DOWN, KC_F12,  _______, KC_PGUP, KC_HOME, KC_UP,   KC_END, \
+  _______, _______, _______, _______,  _______, _______, _______, _______, _______, _______, KC_PGDN, KC_LEFT, KC_DOWN, KC_RGHT \
+),
+
+/* CMOVE
+ * ,------------------------------------------------.   ,------------------------------------------------.
+ * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      | PGUP | HOME |  UP  | END  |      |
+ * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      | PGDN | LEFT | DOWN | RIGHT|      |
+ * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+ * `------------------------------------------------'   `------------------------------------------------'
+ */
+
+[_CMOVE] = LAYOUT( \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_PGUP, KC_HOME, KC_UP,   KC_END,  _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_PGDN, KC_LEFT, KC_DOWN, KC_RGHT, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+),
+
+/* WIN
+ * ,------------------------------------------------.   ,------------------------------------------------.
+ * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------|   |-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------|   |------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |   |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------|   |------+------+------+------+------+------+------|
+ * |      |      |      | LGUI |  ALT |      |      |   |      |      |      | ALT  |      |      |      |
+ * `------------------------------------------------'   `------------------------------------------------'
+ */
+
+[_WIN] = LAYOUT( \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, KC_LGUI, ALT_T(KC_MHEN), _______, _______, _______, _______, ALT_T(KC_HENK), _______, _______, _______, _______ \
+),
+
+};

keyboards/gherkin/keymaps/bbaserdem/config.h

@@ -1,5 +1,5 @@
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
+#ifndef CONFIG_KEYMAP_H
+#define CONFIG_KEYMAP_H
 
 #include "../../config.h"
 #define RGB_DI_PIN F6

keyboards/gherkin/keymaps/bbaserdem/keymap.c

@@ -21,7 +21,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     )
 };
 
-void matrix_init_keymap(void) {
+void matrix_init_user(void) {
     // Set LED's to max
     _delay_us(300);
     backlight_config.level = 2;

keyboards/gherkin/keymaps/bbaserdem/rules.mk

@@ -2,13 +2,16 @@ ifndef QUANTUM_DIR
   include ../../../../Makefile
 endif
 
+USER_NAME := bbaserdem-nouserspace
+
 STENO_ENABLE = no      # Additional protocols for Stenography(+1700), requires VIRTSER
 MOUSEKEY_ENABLE = no   # Mouse keys(+4700)
 EXTRAKEY_ENABLE = no   # Audio control and System control(+450)
 CONSOLE_ENABLE = no    # Console for debug(+400)
 COMMAND_ENABLE = no    # Commands for debug and configuration
 SLEEP_LED_ENABLE = no  # Breathing sleep LED during USB suspend
-NKRO_ENABLE = yes      # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 AUDIO_ENABLE = no 	   # Enable audio output from keyboard
+
+NKRO_ENABLE = yes      # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
 RGBLIGHT_ENABLE = yes  # Enable RBG light strips
 BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality

keyboards/handwired/atreus50/keymaps/ajp10304/config.h

@@ -0,0 +1,14 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+#define PREVENT_STUCK_MODIFIERS
+
+#undef MATRIX_ROW_PINS
+#undef MATRIX_COL_PINS
+
+#define MATRIX_ROW_PINS { D4, D5, C7, C6 }
+#define MATRIX_COL_PINS { F0, F1, F4, F5, F6, D7, D1, B7, D0, B3, B2, B1, B0 }
+
+#endif

keyboards/handwired/atreus50/keymaps/ajp10304/keymap.c

@@ -0,0 +1,348 @@
+#include "atreus50.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "keymap_uk.h"
+
+extern keymap_config_t keymap_config;
+
+enum planck_layers {
+  _QWERTY,
+  _MAC,
+  _LOWER,
+  _MLWR,
+  _RAISE,
+  _MRSE,
+  _FUNC,
+  _MFNC,
+  _FUNC2,
+  _MFNC2,
+  _ADJUST,
+  _MOUSE
+};
+
+enum planck_keycodes {
+  QWERTY = SAFE_RANGE,
+  MAC,
+  FUNC,
+  MFNC,
+  FUNC2,
+  MFNC2,
+  LOWER,
+  MLWR,
+  RAISE,
+  MRSE,
+  MOUSE,
+  DYNAMIC_MACRO_RANGE
+};
+
+#include "dynamic_macro.h"
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------|             |-----------------------------------------.
+ * | Esc  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | Tab  |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |  ;:  | Enter|
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | Shft |   Z  |   X  |   C  |   V  |   B  |             |   N  |   M  |  ,<  |  .>  |  /?  | Shft |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Fn   | Ctrl | Alt  | GUI  |Lower | Bksp | Ctrl | Alt  |Space |Raise | Shift| MENU | Ctrl | Fn2  |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP(
+  KC_ESC,                KC_Q,       KC_W,        KC_E,      KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,      KC_O,      KC_P,       KC_BSPC              ,
+  MT(MOD_LSFT, KC_TAB),  KC_A,       KC_S,        KC_D,      KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,      KC_L,      KC_SCLN,    MT(MOD_RSFT, KC_ENT) ,
+  KC_LSHIFT,             KC_Z,       KC_X,        KC_C,      KC_V,    KC_B,                      KC_N,    KC_M,    KC_COMM,   KC_DOT,    KC_SLSH,    KC_RSHIFT            ,
+  MO(_FUNC),             KC_LCTL,    KC_LALT,     KC_LGUI,   LOWER,   KC_BSPC, KC_LCTL, KC_LALT, KC_SPC,  RAISE,   KC_LSHIFT, KC_BTN2,   KC_RCTL,    MO(_FUNC2)
+),
+
+/* Function
+ * ,------------------------------------------             |-----------------------------------------.
+ * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * |  1!  |  2"  |  3£  |  4$  |  5%  |  6^  |             |  7&  |  8*  |  9(  |  0)  |  ~   |INSERT|
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | Shift|  \|  |  `¬  |  #~  |   *  |  -_  |             |  =+  |  \|  |  [{  |  ]}  |  '@  |Shift |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Fn   | Ctrl | Alt  | GUI  |Lower | Bksp | Ctrl | Alt  |Space |Mouse | MENU | Alt  | Ctrl | Fn   |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_FUNC] = KEYMAP(
+  KC_F1,     KC_F2,           KC_F3,    KC_F4,         KC_F5,   KC_F6,                     KC_F7,   KC_F8,      KC_F9,    KC_F10,  KC_F11,  KC_F12               ,
+  KC_1,      KC_2,            KC_3,     KC_4,          KC_5,    KC_6,                      KC_7,    KC_8,       KC_9,     KC_0,    UK_TILD, KC_INSERT            ,
+  KC_LSHIFT, KC_NONUS_BSLASH, KC_GRAVE, KC_NONUS_HASH, KC_PAST, KC_MINS,                   KC_EQL,  KC_BSLASH,  KC_LBRC,  KC_RBRC, KC_QUOT, MT(MOD_RSFT, KC_ENT) ,
+  _______,   _______,         _______,  _______,       _______, _______, _______, _______, _______, MO(_MOUSE), _______,  _______, _______, _______
+),
+
+/* Lower
+ * ,------------------------------------------             |-----------------------------------------.
+ * |  1!  |  2"  |  3£  |  4$  |  5%  |  6^  |             |  7&  |  8*  |  9(  |  0)  | DEL  | Bksp |
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * |  !   |   "  |   £  |   $  |   %  |   ^  |             |   &  |   *  |   (  |   )  |WrdDel|WrdBks|
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | Shift|  \|  |  `¬  |  #~  |  '@  |  -_  |             |  =+  |  #~  |  [{  |  ]}  |  '@  |Shift |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |Lower | Del  | Ctrl | Alt  |Space |      | Next | Vol- | Vol+ | Play |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP(
+  KC_1,        KC_2,            KC_3,        KC_4,           KC_5,        KC_6,                         KC_7,       KC_8,          KC_9,       KC_0,       KC_DEL,       KC_BSPC              ,
+  LSFT(KC_1),  LSFT(KC_2),      LSFT(KC_3),  LSFT(KC_4),     LSFT(KC_5),  LSFT(KC_6),                   LSFT(KC_7), LSFT(KC_8),    LSFT(KC_9), LSFT(KC_0), LCTL(KC_DEL), LCTL(KC_BSPC)        ,
+  KC_LSPO,     KC_NONUS_BSLASH, KC_GRAVE,    KC_NONUS_HASH,  KC_QUOT,     KC_MINS,                      KC_EQL,     KC_NONUS_HASH, KC_LBRC,    KC_RBRC,    KC_QUOT,      MT(MOD_RSFT, KC_ENT) ,
+  _______,     _______,         _______,     _______,        _______,     KC_DEL,     _______, _______, _______,    _______,       KC_MNXT,    KC_VOLD,    KC_VOLU,      KC_MPLY
+),
+
+/* Raise
+ * ,------------------------------------------             |-----------------------------------------.
+ * |   `  |      |WRDSEL|  [   |   ]  |      |             |      | PGUP | HOME |PGDOWN|      |PRNTSC|
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * |   `  |      |      |  (   |   )  |      |             |      | HOME |  UP  | END  |      |ZOOM +|
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * |      |      |      |  {   |   }  |      |             |  |<  | LEFT | DOWN |RIGHT |  >|  |ZOOM -|
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------|
+ * | Mouse|      |      |      |      |  Alt | Ctrl | Alt  |Enter |Raise |      |      |      |      |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP(
+  KC_GRV,     XXXXXXX, M(1),    KC_LBRC,       KC_RBRC,       XXXXXXX,                   XXXXXXX,       KC_PGUP,  KC_HOME,  KC_PGDOWN,  XXXXXXX,        KC_PSCREEN         ,
+  KC_GRV,     XXXXXXX, XXXXXXX, LSFT(KC_9),    LSFT(KC_0),    XXXXXXX,                   XXXXXXX,       KC_HOME,  KC_UP,    KC_END,     XXXXXXX,        LCTL(LSFT(KC_EQL)) ,
+  _______,    XXXXXXX, XXXXXXX, LSFT(KC_LBRC), LSFT(KC_RBRC), XXXXXXX,                   LCTL(KC_LEFT), KC_LEFT,  KC_DOWN,  KC_RIGHT,   LCTL(KC_RIGHT), LCTL(KC_MINS)      ,
+  MO(_MOUSE), _______, _______, _______,       _______,       KC_LALT, _______, _______, KC_ENT,        _______,  XXXXXXX,  _______,    _______,        _______
+),
+
+/* Adjust (Lower + Raise)
+ * ,------------------------------------------             |-----------------------------------------.
+ * | ???? | Reset|Qwerty|      |      | REC1 |             | REC2 |      |      |      |      |  Del |
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * | CAPS |      |      |      |      | PLAY1|             | PLAY2| Mute | Vol+ | Play |      |      |
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | PC/MC|      |      |      |      | STOP |             | STOP | Prev | Vol- | Next |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP(
+  M(0),     RESET,   QWERTY,  _______, _______, DYN_REC_START1,                    DYN_REC_START2,  _______,             _______,           _______,              _______,  KC_DEL  ,
+  KC_CAPS,  _______, _______, _______, _______, DYN_MACRO_PLAY1,                   DYN_MACRO_PLAY2, KC_AUDIO_MUTE,       KC_AUDIO_VOL_UP,   KC_MEDIA_PLAY_PAUSE,  _______,  _______ ,
+  TG(_MAC), _______, _______, _______, _______, DYN_REC_STOP,                      DYN_REC_STOP,    KC_MEDIA_PREV_TRACK, KC_AUDIO_VOL_DOWN, KC_MEDIA_NEXT_TRACK,  _______,  _______ ,
+  _______,  _______, _______, _______, _______, _______,         _______, _______, _______,         _______,             _______,           _______,              _______,  _______ 
+),
+
+/* Mouse
+ * ,------------------------------------------             |-----------------------------------------.
+ * | ESC  |      |      |      |      |      |             |      |      |      |      |      |      |
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * | ACC0 | ACC1 | ACC2 |      |      |      |             |      | BTN1 |  UP  | BTN2 |      |      |
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * | ACC0 | ACC1 | ACC2 |      |      |      |             |      | LEFT | DOWN |RIGHT |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_MOUSE] = KEYMAP(
+    KC_ESC ,      _______,      _______,      _______, _______, _______,                   _______, _______,    _______,     _______,    _______, _______ ,
+    KC_MS_ACCEL0, KC_MS_ACCEL1, KC_MS_ACCEL2, _______, _______, _______,                   _______, KC_MS_BTN1, KC_MS_UP,   KC_MS_BTN2,  _______, _______ ,
+    KC_MS_ACCEL0, KC_MS_ACCEL1, KC_MS_ACCEL2, _______, _______, _______,                   _______, KC_MS_LEFT, KC_MS_DOWN, KC_MS_RIGHT, _______, _______ ,
+    _______,      _______,      _______,      _______, _______, _______, _______, _______, _______, _______,    _______,    _______,     _______, _______
+),
+
+/* Function 2 (Right hand side)
+ * ,------------------------------------------             |-----------------------------------------.
+ * |      |      |WRDSEL|      |      |      |             | LNDEL|      |      |      |      |      |
+ * |------+------+------+------+------+-------             |------+------+------+------+------+------|
+ * |      |      | LNSEL| DUP  |      |      |             |      |      |LNJOIN|      |      |      |
+ * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+ * |      | UNDO | CUT  | COPY | PASTE|      |             |      |      |      |      |      | MODE |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-------------------------------------------------------------------------------------------------'
+ */
+[_FUNC2] = KEYMAP(
+    _______,  _______,    M(1),       _______,    _______,    _______,                   M(5),    _______, _______, _______, _______, _______,
+    _______,  _______,    M(3),       M(7),       _______,    _______,                   _______, M(10),   _______, _______, _______, _______,
+    _______,  LCTL(KC_Z), LCTL(KC_X), LCTL(KC_C), LCTL(KC_V), _______,                   _______, _______, _______, _______, _______, M(98)  ,
+    _______,  _______,    _______,    _______,    _______,    _______, _______, _______, _______, _______, _______, _______, _______, _______
+),
+
+[_MAC] = KEYMAP(
+    _______,  _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    _______,  _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    MFNC,     _______, _______, _______, MLWR,    _______, _______, _______, _______, MRSE,    _______, _______, _______, MFNC2
+),
+
+[_MLWR] = KEYMAP(
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______,
+    _______,  _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+),
+
+[_MRSE] = KEYMAP(
+    _______,  _______,  M(2),    _______, _______, _______,                   _______,       _______,    _______, _______,    _______,        _______       ,
+    _______,  _______,  _______, _______, _______, _______,                   _______,       LCTL(KC_A), _______, LCTL(KC_E), _______,        LGUI(KC_EQL)  ,
+    _______,  _______,  _______, _______, _______, _______,                   LALT(KC_LEFT), _______,    _______, _______,    LALT(KC_RIGHT), LGUI(KC_MINS) ,
+    _______,  _______,  _______, _______, _______, _______, _______, _______, _______,       _______,    _______, _______,    _______,        _______
+),
+
+[_MFNC] = KEYMAP(
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______       ,
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, LGUI(KC_PENT) ,
+    _______,  _______,  _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______       ,
+    _______,  _______,  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+),
+
+[_MFNC2] = KEYMAP(
+    _______,  _______,    M(2),       _______,    _______,    _______,                   M(6),    _______, _______, _______, _______, _______,
+    _______,  _______,    M(4),       M(8),       _______,    _______,                   _______, M(10),   _______, _______, _______, _______,
+    _______,  LGUI(KC_Z), LGUI(KC_X), LGUI(KC_C), LGUI(KC_V), _______,                   _______, _______, _______, _______, _______, M(99)  ,
+    _______,  _______,    _______,    _______,    _______,    _______, _______, _______, _______, _______, _______, _______, _______, _______
+)
+
+};
+
+void persistant_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+
+  if (!process_record_dynamic_macro(keycode, record)) {
+      return false;
+  }
+
+   switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistant_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+    case MLWR:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        layer_on(_MLWR);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        layer_off(_MLWR);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+    case MRSE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        layer_on(_MRSE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        layer_off(_MRSE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+    case MFNC:
+      if (record->event.pressed) {
+        layer_on(_FUNC);
+        layer_on(_MFNC);
+      } else {
+        layer_off(_FUNC);
+        layer_off(_MFNC);
+      }
+      return false;
+    case MFNC2:
+      if (record->event.pressed) {
+        layer_on(_FUNC2);
+        layer_on(_MFNC2);
+      } else {
+        layer_off(_FUNC2);
+        layer_off(_MFNC2);
+      }
+      return false;
+    }
+  return true;
+}
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t keycode, uint8_t opt) {
+  // These would trigger when you hit a key mapped as M(0)
+  if (record->event.pressed) {
+    switch(keycode) {
+      case 0: // Some custom string here
+        SEND_STRING("");
+        return false;
+
+      case 1: // Word Select
+        SEND_STRING(SS_DOWN(X_LCTRL) SS_TAP(X_RIGHT) SS_DOWN(X_LSHIFT) SS_TAP(X_LEFT) SS_UP(X_LSHIFT) SS_UP(X_LCTRL));
+        return false;
+
+      case 2: // Word Select Mac
+        SEND_STRING(SS_DOWN(X_LALT) SS_TAP(X_RIGHT) SS_DOWN(X_LSHIFT) SS_TAP(X_LEFT) SS_UP(X_LSHIFT) SS_UP(X_LALT));
+        return false;
+
+      case 3: // Line Select
+        SEND_STRING(SS_TAP(X_HOME) SS_DOWN(X_LSHIFT) SS_TAP(X_END) SS_UP(X_LSHIFT));
+        return false;
+
+      case 4: // Line Select Mac
+        SEND_STRING(SS_LCTRL("a") SS_DOWN(X_LSHIFT) SS_LCTRL("e") SS_UP(X_LSHIFT));
+        return false;
+
+      case 5: // Line Delete
+        SEND_STRING(SS_TAP(X_HOME) SS_DOWN(X_LSHIFT) SS_TAP(X_END) SS_UP(X_LSHIFT));
+        SEND_STRING(SS_TAP(X_BSPACE));
+        return false;
+
+      case 6: // Line Delete Mac
+        SEND_STRING(SS_LCTRL("a") SS_DOWN(X_LSHIFT) SS_LCTRL("e") SS_UP(X_LSHIFT));
+        SEND_STRING(SS_TAP(X_BSPACE));
+        return false;
+
+      case 7: // Duplicate Selection
+        SEND_STRING(SS_LCTRL("c") SS_TAP(X_RIGHT) SS_LCTRL("v"));
+        return false;
+
+      case 8: // Duplicate Selection Mac
+        SEND_STRING(SS_LGUI("c") SS_TAP(X_RIGHT) SS_LGUI("v"));
+        return false;
+
+      case 9: // Join line
+        SEND_STRING(SS_TAP(X_END) SS_TAP(X_DELETE));
+        return false;
+
+      case 10: // Join line Mac
+        SEND_STRING(SS_LCTRL("e") SS_TAP(X_DELETE));
+        return false;
+
+      case 98: // Print mode
+        SEND_STRING("PC");
+        return false;
+
+      case 99: // Print mode
+        SEND_STRING("OSX");
+        return false;
+    }
+  }
+  return MACRO_NONE;
+};

keyboards/handwired/atreus50/keymaps/ajp10304/readme.md

@@ -0,0 +1,108 @@
+# AJP10304 Custom Atreus50 Layout
+# Also available for the Planck and JJ40
+
+**Note:** In the tables below where there are two characters on a key,
+the second is the output when shift is applied.
+
+**Note:** The below tables assume a UK layout.
+
+##### Main Qwerty Layer
+
+* Tab: when held, operates as shift.
+* Enter: when held, operates as shift.
+* MENU: perform right-click
+
+|      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| ---- |:----:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| ----:|
+| Esc  |   Q  |   W  |   E  |   R  |   T  |      |      |   Y  |   U  |   I  |   O  |   P  | Bksp |
+| Tab  |   A  |   S  |   D  |   F  |   G  |      |      |   H  |   J  |   K  |   L  |  ;:  | Enter|
+| Shft |   Z  |   X  |   C  |   V  |   B  |      |      |   N  |   M  |  ,<  |  .>  |  /?  | Shft |
+| Fn   | Ctrl | Alt  | GUI  |Lower | Bksp | Ctrl | Alt  |Space |Raise | Shift| MENU | Ctrl | Fn2  |
+
+##### Function Layer
+Activated when `fn` held in the above `qwerty` layer.
+
+|       |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| :---: |:----:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:|
+|  F1   |  F2  |  F3  |  F4  |  F5  |  F6  |      |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+|  1!   |  2"  |  3£  |  4$  |  5%  |  6^  |      |      |  7&  |  8*  |  9(  |  0)  |  ~   |INSERT|
+| Shift |  \|  |  `¬  |  #~  |   *  |  -_  |      |      |  =+  |  \|  |  [{  |  ]}  |  '@  |Shift |
+| Fn    | Ctrl | Alt  | GUI  |Lower | Bksp | Ctrl | Alt  |Space |Mouse | MENU | Alt  | Ctrl | Fn2  |
+
+##### Lower Layer
+Activated when `Lower` is held in the above `qwerty` layer.
+
+* Numbers are along the top row, their shifted counterparts are on row 2.
+* WrdBks: `backspace` with `ctrl` applied. I.e. delete a word.
+* WrdDel: `delete` with `ctrl` applied. I.e. forward delete a word.
+
+|       |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| :---: |:----:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:|
+|  1!   |  2"  |  3£  |  4$  |  5%  |  6^  |      |      |  7&  |  8*  |  9(  |  0)  | DEL  | Bksp |
+|  !    |   "  |   £  |   $  |   %  |   ^  |      |      |   &  |   *  |   (  |   )  |WrdDel|WrdBks|
+| Shift |  \|  |  `¬  |  #~  |  '@  |  -_  |      |      |  =+  |  #~  |  [{  |  ]}  |  '@  |Shift |
+|       |      |      |      |Lower | Del  | Ctrl | Alt  |Space |      | Next | Vol- | Vol+ | Play |
+
+ ##### Raise Layer
+ Activated when `Raise` is held in the above `qwerty` layer.
+
+ * Preferred layer for typing brackets.
+ * Allows for cursor navigation to be used solely with the right hand.
+ * WRDSEL: Select the word where the cursor is.
+ * |< and >|: Apply `ctrl` to `left` and `right` respectively for word jumping.
+
+|       |      |      |      |      |      |      |      |       |      |      |      |       |      |
+| :---: |:----:| :---:| :---:| :---:| :---:| :---:| :---:| :---: | :---:| :---:| :---:| :---: | :---:|
+|   `   |      |WRDSEL|  [   |   ]  |      |      |      |       | PGUP | HOME |PGDOWN|       |PRNTSC|
+|   `   |      |      |  (   |   )  |      |      |      |       | HOME |  UP  | END  |       |ZOOM +|
+|       |      |      |  {   |   }  |      |      |      |&#124;<| LEFT | DOWN |RIGHT |>&#124;|ZOOM -|
+| Mouse |      |      |      |      |  Alt | Ctrl | Alt  | Enter |Raise |      |      |       |      |
+
+##### Lower + Raise
+Activated when `Lower` and `Raise` are held together in the above `qwerty` layer.
+
+* Audio controls in the same position as cursor keys from the `Raise` layer.
+* ????: Runs a macro for outputting a text string.  Do not use this store passwords.
+* Reset: Enter bootloader for flashing firmware to the keyboard.
+* CAPS: Toggle caps lock.
+* Macro functions: Allows recording of macros.  To start recording the macro, press either REC1 or REC2. 
+To finish the recording, press STOP. To replay the macro, press either PLAY1 or PLAY2.
+* MAC: Toggle MAC OS extensions to layers. This allows MLWR to be enabled with LOWER,
+MRSE with RAISE, MFNC with FUNC and MFNC2 with FUNC2 respectively.
+
+|       |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| :---: |:----:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:|
+| ????  | Reset|Qwerty|      |      | REC1 |      |      | REC2 |      |      |      |      |  Del |
+| CAPS  |      |      |      |      | PLAY1|      |      |PLAY2 | Mute | Vol+ | Play |      |      |
+| MAC   |      |      |      |      | STOP1|      |      |STOP2 | Prev | Vol- | Next |      |      |
+|       |      |      |      |      |      | Ctrl | Alt  |      |      | DYN  |      |      |      |
+
+##### Function 2 Layer
+Activated when `fn` held in the above `qwerty` layer.
+* WRDSEL: Select the word where the cursor is.
+* LNDEL: Delete the line where the cursor is.
+* LNSEL: Select the line where the cursor is.
+* DUP: Duplicate the selected text.
+* LNJOIN: Join the line where the cursor is with the following line.
+* MODE: Print either `PC` or `OSX` depending on what layer mode is active.
+
+|       |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| :---: | :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:|
+|       |      |WRDSEL|      |      |      |      |      | LNDEL|      |      |      |      |      |
+|       |      | LNSEL| DUP  |      |      |      |      |      |      |LNJOIN|      |      |      |
+|       | UNDO | CUT  | COPY | PASTE|      |      |      |      |      |      |      |      | MODE |
+|       |      |      |      |      |      | Ctrl | Alt  |      |      |      |      |      |      |
+
+##### Mouse Layer
+Activated when `fn` and `raise` held together.
+
+|       |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| :---: | :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:| :---:|
+| ESC   |      |      |      |      |      |      |      |      |      |      |      |      |      |
+| ACC0  | ACC1 | ACC2 |      |      |      |      |      |      | BTN1 |  UP  | BTN2 |      |      |
+| ACC0  | ACC1 | ACC2 |      |      |      |      |      |      | LEFT | DOWN | RIGHT|      |      |
+|       |      |      |      |      |      | Ctrl | Alt  |      |      |      |      |      |      |
+
+
+##Program Command
+teensy_loader_cli -w -mmcu=atmega32u4 handwired_atreus50_ajp10304.hex

keyboards/handwired/atreus50/keymaps/ajp10304/rules.mk

@@ -0,0 +1,12 @@
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
+
+AUDIO_ENABLE = no
+MOUSEKEY_ENABLE = yes
+
+TEMP := $(OPT_DEFS)
+OPT_DEFS = $(filter-out -DBOOTLOADER_SIZE=4096,$(TEMP))
+OPT_DEFS += -DBOOTLOADER_SIZE=512
+
+BOOTLOADER = halfkay

keyboards/helix/rev2/keymaps/five_rows_jis/config.h

@@ -114,4 +114,21 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define USB_MAX_POWER_CONSUMPTION 100
 #endif
 
+#ifdef MOUSEKEY_ENABLE
+  #undef MOUSEKEY_INTERVAL
+  #define MOUSEKEY_INTERVAL 0
+
+  #undef MOUSEKEY_TIME_TO_MAX
+  #define MOUSEKEY_TIME_TO_MAX 150
+
+  #undef MOUSEKEY_MAX_SPEED
+  #define MOUSEKEY_MAX_SPEED 3
+
+  #undef MOUSEKEY_MOVE_DELTA
+  #define MOUSEKEY_MOVE_DELTA 5
+
+  #undef MOUSEKEY_DELAY
+  #define MOUSEKEY_DELAY 0
+#endif
+
 #endif /* CONFIG_USER_H */

keyboards/helix/rev2/keymaps/five_rows_jis/keymap.c

@@ -159,9 +159,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   /* Raise JIS Normal
    * ,-----------------------------------------.             ,-----------------------------------------.
-   * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
+   * |      |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |  F7  |  F8  |  F9  | F10  | F11  |
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
-   * |      |      |      |      |      |      |             |      |      |      |      | Home |PageUp|
+   * |      |      |      |      |      |      |             | F12  |      |      |      | Home |PageUp|
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
    * |      |      |      |      |      |      |             |      |      |      |      | End  |PageDn|
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
@@ -171,8 +171,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * `-------------------------------------------------------------------------------------------------'
    */
   [_RAISE] = LAYOUT( \
-    KC_F1  , KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                     KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  \
-    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGUP, \
+    _______, KC_F1  , KC_F2,   KC_F3,   KC_F4,   KC_F5,                     KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   KC_F12 , XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGUP, \
     _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_END,  KC_PGDN, \
     _______, KC_BTN1, KC_BTN2, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_MS_U, XXXXXXX, \
     _______, _______, _______, _______, XXXXXXX, XXXXXXX, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, KC_MS_L, KC_MS_D, KC_MS_R  \
@@ -180,9 +180,9 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   /* Raise JIS Exchange L and R
    * ,-----------------------------------------.             ,-----------------------------------------.
-   * |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |             |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |
+   * |  F6  |  F7  |  F8  |  F9  | F10  | F11  |             |      |  F1  |  F2  |  F3  |  F4  |  F5  |
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
-   * |      |      |      |      |      |      |             |      |      |      |      |      |      |
+   * | F12  |      |      |      |      |      |             |      |      |      |      |      |      |
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
    * |      |      |      |      |      |      |             |      |      |      |      |      |      |
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
@@ -192,8 +192,8 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * `-------------------------------------------------------------------------------------------------'
    */
   [_RAI_E] = LAYOUT( \
-    KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,                    KC_F1  , KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   \
-    XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
+    KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,                    _______, KC_F1  , KC_F2,   KC_F3,   KC_F4,   KC_F5,   \
+    KC_F12,  XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
     XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
     XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_MS_U, XXXXXXX, XXXXXXX, _______, KC_BTN1, KC_BTN2, XXXXXXX, XXXXXXX, XXXXXXX, \
     _______, _______, XXXXXXX, _______, KC_MS_L, KC_MS_D, KC_MS_R, _______, _______, _______, _______, XXXXXXX, _______, XXXXXXX  \
@@ -221,194 +221,46 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     ),
 };
 
-#elif HELIX_ROWS == 4
-
-const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-	// Do it yourself :)
-};
-
 #else
 #error "undefined keymaps"
 #endif
 
+#ifdef SSD1306OLED
+char keylog[20] = {};
+const char code_to_name[60] = {
+    ' ', ' ', ' ', ' ', 'a', 'b', 'c', 'd', 'e', 'f',
+    'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
+    'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
+    '1', '2', '3', '4', '5', '6', '7', '8', '9', '0',
+    'R', 'E', 'B', 'T', ' ', '-', ' ', '@', ' ', ' ',
+    ' ', ';', ':', ' ', ',', '.', '/', ' ', ' ', ' '};
+
+inline void set_keylog(uint16_t keycode, keyrecord_t *record)
+{
+  char name = ' ';
+  uint8_t leds = host_keyboard_leds();
+
+  if (keycode < 60)
+  {
+    name = code_to_name[keycode];
+  }
+
+  // update keylog
+  snprintf(keylog, sizeof(keylog), "\n%dx%d %2x %c %c %c %c",
+           record->event.key.row,
+           record->event.key.col,
+           keycode,
+           name,
+          (leds & (1<<USB_LED_NUM_LOCK)) ? 'N' : ' ',
+          (leds & (1<<USB_LED_CAPS_LOCK)) ? 'C' : ' ',
+          (leds & (1<<USB_LED_SCROLL_LOCK)) ? 'S' : ' '
+           );
+}
+#endif
 
 #ifdef AUDIO_ENABLE
 float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
 float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
-#endif
-
-// define variables for reactive RGB
-bool TOG_STATUS = false;
-int RGB_current_mode;
-
-void persistent_default_layer_set(uint16_t default_layer) {
-  eeconfig_update_default_layer(default_layer);
-  default_layer_set(default_layer);
-}
-
-#ifdef ADJUST_MACRO_ENABLE
-// Setting ADJUST layer RGB back to default
-void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
-  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
-    #ifdef RGBLIGHT_ENABLE
-      rgblight_mode(RGB_current_mode);
-    #endif
-    layer_on(layer3);
-   } else {
-    layer_off(layer3);
-  }
-}
-#endif
-
-void toggle_lower_raise_layer(bool pressed, uint16_t dist_layer, uint16_t lower_layer, uint16_t raise_layer) {
-  if (pressed) {
-    //not sure how to have keyboard check mode and set it to a variable, so my work around
-    //uses another variable that would be set to true after the first time a reactive key is pressed.
-    if (!TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
-      TOG_STATUS = !TOG_STATUS;
-      #ifdef RGBLIGHT_ENABLE
-        if (dist_layer == _LOWER || dist_layer == _LOW_E) {
-          rgblight_mode(16);
-        } else {
-          rgblight_mode(15);
-        }
-      #endif
-    }
-
-    layer_on(dist_layer);
-    #ifdef ADJUST_MACRO_ENABLE
-      update_tri_layer_RGB(lower_layer, raise_layer, _ADJUST);
-    #endif
-  } else {
-    #ifdef RGBLIGHT_ENABLE
-      rgblight_mode(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
-    #endif
-    TOG_STATUS = false;
-    layer_off(dist_layer);
-    #ifdef ADJUST_MACRO_ENABLE
-      update_tri_layer_RGB(lower_layer, raise_layer, _ADJUST);
-    #endif
-  }
-}
-
-bool process_record_user(uint16_t keycode, keyrecord_t *record) {
-  switch (keycode) {
-    case BASE:
-      if (record->event.pressed) {
-        #ifdef AUDIO_ENABLE
-          PLAY_SONG(tone_qwerty);
-        #endif
-        persistent_default_layer_set(1UL<<_BASE);
-      }
-      return false;
-      break;
-    case BAS_E:
-      if (record->event.pressed) {
-        #ifdef AUDIO_ENABLE
-          PLAY_SONG(tone_qwerty);
-        #endif
-        persistent_default_layer_set(1UL<<_BAS_E);
-      }
-      return false;
-      break;
-    case LOWER:
-      toggle_lower_raise_layer(record->event.pressed, _LOWER, _LOWER, _RAISE);
-      return false;
-      break;
-    case LOW_E:
-      toggle_lower_raise_layer(record->event.pressed, _LOW_E, _LOW_E, _RAI_E);
-      return false;
-      break;
-    case RAISE:
-      toggle_lower_raise_layer(record->event.pressed, _RAISE, _LOWER, _RAISE);
-      return false;
-      break;
-    case RAI_E:
-      toggle_lower_raise_layer(record->event.pressed, _RAI_E, _LOW_E, _RAI_E);
-      return false;
-      break;
-    case ADJUST:
-        if (record->event.pressed) {
-          #ifdef RGBLIGHT_ENABLE
-            rgblight_mode(14);
-          #endif
-          layer_on(_ADJUST);
-        } else {
-          #ifdef RGBLIGHT_ENABLE
-            rgblight_mode(RGB_current_mode);
-          #endif
-          layer_off(_ADJUST);
-        }
-        return false;
-        break;
-    //led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
-    case RGB_MOD:
-      #ifdef RGBLIGHT_ENABLE
-        if (record->event.pressed) {
-          rgblight_mode(RGB_current_mode);
-          rgblight_step();
-          RGB_current_mode = rgblight_config.mode;
-        }
-      #endif
-      return false;
-      break;
-    case EISU:
-      if (record->event.pressed) {
-        if (keymap_config.swap_lalt_lgui==false) {
-          register_code(KC_LANG2);
-        } else {
-          SEND_STRING(SS_LALT("`"));
-        }
-      } else {
-        unregister_code(KC_LANG2);
-      }
-      return false;
-      break;
-    #ifdef KANA_ENABLE
-    case KANA:
-      if (record->event.pressed) {
-        if(keymap_config.swap_lalt_lgui==false){
-          register_code(KC_LANG1);
-        }else{
-          SEND_STRING(SS_LALT("`"));
-        }
-      } else {
-        unregister_code(KC_LANG1);
-      }
-      return false;
-      break;
-    #endif
-    case RGBRST:
-      #ifdef RGBLIGHT_ENABLE
-        if (record->event.pressed) {
-          eeconfig_update_rgblight_default();
-          rgblight_enable();
-          RGB_current_mode = rgblight_config.mode;
-        }
-      #endif
-      break;
-  }
-
-  return true;
-  // return process_layer_control(keycode, record, false) ? process_layer_control(keycode, record, true) : true;
-}
-
-void matrix_init_user(void) {
-  #ifdef AUDIO_ENABLE
-    startup_user();
-  #endif
-  #ifdef RGBLIGHT_ENABLE
-    RGB_current_mode = rgblight_config.mode;
-  #endif
-  //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
-  #ifdef SSD1306OLED
-    TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
-    iota_gfx_init(!has_usb());   // turns on the display
-  #endif
-}
-
-
-#ifdef AUDIO_ENABLE
 
 void startup_user()
 {
@@ -431,8 +283,168 @@ void music_scale_user(void)
   PLAY_SONG(music_scale);
 }
 
+#else
+float tone_qwerty;
+float music_scale;
+#define PLAY_SONG(tone)
 #endif
 
+// define variables for reactive RGB
+int RGB_current_mode;
+#ifdef ADJUST_MACRO_ENABLE
+// Setting ADJUST layer RGB back to default
+void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
+  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
+    RGBLIGHT(RGB_current_mode);
+    layer_on(layer3);
+   } else {
+    layer_off(layer3);
+  }
+}
+#define ADJUST_MACRO(layer1, layer2, layer3) update_tri_layer_RGB(layer1, layer2, layer3)
+#else
+#define ADJUST_MACRO(layer1, layer2, layer3)
+#endif
+
+#ifdef RGBLIGHT_ENABLE
+#define RGBLIGHT(mode) rgblight_mode(mode)
+#else
+#define RGBLIGHT(mode)
+#endif
+
+
+inline void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool TOG_STATUS = false;
+
+void toggle_lower_raise_layer(bool pressed, uint16_t dist_layer, uint16_t lower_layer, uint16_t raise_layer) {
+  if (pressed) {
+    //not sure how to have keyboard check mode and set it to a variable, so my work around
+    //uses another variable that would be set to true after the first time a reactive key is pressed.
+    if (!TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+      TOG_STATUS = !TOG_STATUS;
+      #ifdef RGBLIGHT_ENABLE
+        rgblight_mode((dist_layer == _LOWER || dist_layer == _LOW_E) ? 16 : 15);
+      #endif
+    }
+
+    layer_on(dist_layer);
+    ADJUST_MACRO(lower_layer, raise_layer, _ADJUST);
+  } else {
+    RGBLIGHT(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
+    TOG_STATUS = false;
+    layer_off(dist_layer);
+    ADJUST_MACRO(lower_layer, raise_layer, _ADJUST);
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  #ifdef SSD1306OLED
+    if (record->event.pressed) {
+      set_keylog(keycode, record);
+    }
+  #endif
+
+  switch (keycode) {
+    case BASE:
+      if (record->event.pressed) {
+        PLAY_SONG(tone_qwerty);
+        persistent_default_layer_set(1UL<<_BASE);
+      }
+      break;
+    case BAS_E:
+      if (record->event.pressed) {
+        PLAY_SONG(tone_qwerty);
+        persistent_default_layer_set(1UL<<_BAS_E);
+      }
+      break;
+    case LOWER:
+      toggle_lower_raise_layer(record->event.pressed, _LOWER, _LOWER, _RAISE);
+      break;
+    case LOW_E:
+      toggle_lower_raise_layer(record->event.pressed, _LOW_E, _LOW_E, _RAI_E);
+      break;
+    case RAISE:
+      toggle_lower_raise_layer(record->event.pressed, _RAISE, _LOWER, _RAISE);
+      break;
+    case RAI_E:
+      toggle_lower_raise_layer(record->event.pressed, _RAI_E, _LOW_E, _RAI_E);
+      break;
+    case ADJUST:
+        if (record->event.pressed) {
+          RGBLIGHT(14);
+          layer_on(_ADJUST);
+        } else {
+          RGBLIGHT(RGB_current_mode);
+          layer_off(_ADJUST);
+        }
+        break;
+    //led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
+    case RGB_MOD:
+      #ifdef RGBLIGHT_ENABLE
+        if (record->event.pressed) {
+          rgblight_mode(RGB_current_mode);
+          rgblight_step();
+          RGB_current_mode = rgblight_config.mode;
+        }
+      #endif
+      break;
+    case EISU:
+      if (record->event.pressed) {
+        if (keymap_config.swap_lalt_lgui==false) {
+          register_code(KC_LANG2);
+        } else {
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG2);
+      }
+      break;
+    #ifdef KANA_ENABLE
+    case KANA:
+      if (record->event.pressed) {
+        if(keymap_config.swap_lalt_lgui==false){
+          register_code(KC_LANG1);
+        }else{
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG1);
+      }
+      break;
+    #endif
+    case RGBRST:
+      #ifdef RGBLIGHT_ENABLE
+        if (record->event.pressed) {
+          eeconfig_update_rgblight_default();
+          rgblight_enable();
+          RGB_current_mode = rgblight_config.mode;
+        }
+      #endif
+      break;
+    default:
+      return true;
+  }
+
+  return false;
+}
+
+void matrix_init_user(void) {
+  #ifdef AUDIO_ENABLE
+    startup_user();
+  #endif
+  #ifdef RGBLIGHT_ENABLE
+    RGB_current_mode = rgblight_config.mode;
+  #endif
+  //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
+  #ifdef SSD1306OLED
+    TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
+    iota_gfx_init(!has_usb());   // turns on the display
+  #endif
+}
 
 //SSD1306 OLED update loop, make sure to add #define SSD1306OLED in config.h
 #ifdef SSD1306OLED
@@ -441,7 +453,7 @@ void matrix_scan_user(void) {
   iota_gfx_task();  // this is what updates the display continuously
 }
 
-void matrix_update(struct CharacterMatrix *dest,
+inline void matrix_update(struct CharacterMatrix *dest,
                           const struct CharacterMatrix *source) {
   if (memcmp(dest->display, source->display, sizeof(dest->display))) {
     memcpy(dest->display, source->display, sizeof(dest->display));
@@ -459,76 +471,62 @@ void matrix_update(struct CharacterMatrix *dest,
 #define L_RAI_E (1<<_RAI_E)
 #define L_ADJUST_TRIE (L_ADJUST|L_RAI_E|L_LOW_E)
 
-static void render_logo(struct CharacterMatrix *matrix) {
+const char helix_logo[]={
+  0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,
+  0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
+  0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,
+  0};
+inline void render_logo(struct CharacterMatrix *matrix) {
 
-  static char logo[]={
-    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,
-    0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
-    0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,
-    0};
-  matrix_write(matrix, logo);
-  //matrix_write_P(&matrix, PSTR(" Split keyboard kit"));
+  matrix_write(matrix, helix_logo);
 }
 
-
-
-void render_status(struct CharacterMatrix *matrix) {
+const char mac_win_logo[][2][3]={{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
+inline void render_status(struct CharacterMatrix *matrix) {
 
   // Render to mode icon
-  static char logo[][2][3]={{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
   if(keymap_config.swap_lalt_lgui==false){
-    matrix_write(matrix, logo[0][0]);
+    matrix_write(matrix, mac_win_logo[0][0]);
     matrix_write_P(matrix, PSTR("\n"));
-    matrix_write(matrix, logo[0][1]);
+    matrix_write(matrix, mac_win_logo[0][1]);
   } else {
-    matrix_write(matrix, logo[1][0]);
+    matrix_write(matrix, mac_win_logo[1][0]);
     matrix_write_P(matrix, PSTR("\n"));
-    matrix_write(matrix, logo[1][1]);
+    matrix_write(matrix, mac_win_logo[1][1]);
   }
 
   // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
-  char buf[16];
+  char buf[20];
   matrix_write_P(matrix, PSTR("\nLayer: "));
-    switch (layer_state) {
-      case L_BASE:
-        if (default_layer_state == (1UL<<_BAS_E)) {
-          matrix_write_P(matrix, PSTR("Base_Ex"));
-        } else {
-          matrix_write_P(matrix, PSTR("Base"));
-        }
-        break;
-      case L_RAISE:
-        matrix_write_P(matrix, PSTR("Raise"));
-        break;
-      case L_RAI_E:
-        matrix_write_P(matrix, PSTR("Raise_Ex"));
-        break;
-      case L_LOWER:
-        matrix_write_P(matrix, PSTR("Lower"));
-        break;
-      case L_LOW_E:
-        matrix_write_P(matrix, PSTR("Lower_Ex"));
-        break;
-      case L_ADJUST:
-      case L_ADJUST_TRI:
-      case L_ADJUST_TRIE:
-        matrix_write_P(matrix, PSTR("Adjust"));
-        break;
-      default:
-        snprintf(buf, sizeof(buf), "Undef-%d", (short)layer_state);
-        matrix_write(matrix, buf);
-    }
+  switch (layer_state) {
+    case L_BASE:
+      matrix_write_P(matrix, default_layer_state == (1UL<<_BAS_E) ? PSTR("BaseEx") : PSTR("Base"));
+      break;
+    case L_RAISE:
+      matrix_write_P(matrix, PSTR("Raise"));
+      break;
+    case L_RAI_E:
+      matrix_write_P(matrix, PSTR("RaiseEx"));
+      break;
+    case L_LOWER:
+      matrix_write_P(matrix, PSTR("Lower"));
+      break;
+    case L_LOW_E:
+      matrix_write_P(matrix, PSTR("LowerEx"));
+      break;
+    case L_ADJUST:
+    case L_ADJUST_TRI:
+    case L_ADJUST_TRIE:
+      matrix_write_P(matrix, PSTR("Adjust"));
+      break;
+    default:
+      snprintf(buf, sizeof(buf), "%d", (short)layer_state);
+      matrix_write(matrix, buf);
+  }
 
-  // Host Keyboard LED Status
-  char led[32];
-  snprintf(led, sizeof(led), "\n%s  %s  %s",
-          (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
-          (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
-          (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
-  matrix_write(matrix, led);
+  matrix_write(matrix, keylog);
 }
 
-
 void iota_gfx_task_user(void) {
   struct CharacterMatrix matrix;
 

keyboards/helix/rev2/keymaps/five_rows_jis/readme.md

@@ -61,9 +61,9 @@ Raise Layer
 
 ```
  ,-----------------------------------------.             ,-----------------------------------------.
- |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
+ |      |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |  F7  |  F8  |  F9  | F10  | F11  |
  |------+------+------+------+------+------|             |------+------+------+------+------+------|
- |      |      |      |      |      |      |             |      |      |      |      | Home |PageUp|
+ |      |      |      |      |      |      |             | F12  |      |      |      | Home |PageUp|
  |------+------+------+------+------+------|             |------+------+------+------+------+------|
  |      |      |      |      |      |      |             |      |      |      |      | End  |PageDn|
  |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
@@ -113,9 +113,9 @@ Raise Layer
 
 ```
         ,-----------------------------------------.,-----------------------------------------.
-        |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  ||  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
+        |      |  F1  |  F2  |  F3  |  F4  |  F5  ||  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |
         |------+------+------+------+------+------||------+------+------+------+------+------|
-        |      |      |      |      |      |      ||      |      |      |      |      |      |
+        |      |      |      |      |      |      || F12  |      |      |      |      |      |
         |------+------+------+------+------+------||------+------+------+------+------+------|
         |      |      |      |      |      |      ||      |      |      |      |      |      |
  ,------+------+------+------+------+------+------||------+------+------+------+------+------+------.

keyboards/helix/rev2/keymaps/five_rows_jis/readme_jp.md

@@ -67,9 +67,9 @@ Raiseレイヤー
 
 ```
  ,-----------------------------------------.             ,-----------------------------------------.
- |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
+ |      |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |  F7  |  F8  |  F9  | F10  | F11  |
  |------+------+------+------+------+------|             |------+------+------+------+------+------|
- |      |      |      |      |      |      |             |      |      |      |      | Home |PageUp|
+ |      |      |      |      |      |      |             | F12  |      |      |      | Home |PageUp|
  |------+------+------+------+------+------|             |------+------+------+------+------+------|
  |      |      |      |      |      |      |             |      |      |      |      | End  |PageDn|
  |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
@@ -129,9 +129,9 @@ Raiseレイヤー
 
 ```
         ,-----------------------------------------.,-----------------------------------------.
-        |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  ||  F7  |  F8  |  F9  |  F10 |  F11 | F12  |
+        |      |  F1  |  F2  |  F3  |  F4  |  F5  ||  F6  |  F7  |  F8  |  F9  |  F10 |  F11 |
         |------+------+------+------+------+------||------+------+------+------+------+------|
-        |      |      |      |      |      |      ||      |      |      |      |      |      |
+        |      |      |      |      |      |      || F12  |      |      |      |      |      |
         |------+------+------+------+------+------||------+------+------+------+------+------|
         |      |      |      |      |      |      ||      |      |      |      |      |      |
  ,------+------+------+------+------+------+------||------+------+------+------+------+------+------.

keyboards/hhkb/keymaps/eric/keymap.c

@@ -28,7 +28,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
         KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSPC,
         KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
         KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, MO(HHKB),
-        KC_LGUI, KC_LALT, /*        */ KC_SPC, KC_RALT, KC_RGUI),
+        KC_LALT, KC_LGUI, /*        */ KC_SPC, KC_RGUI, KC_RALT),
 
     /* Layer HHKB: HHKB mode (HHKB Fn)
       |------+-----+-----+-----+----+----+----+----+-----+-----+-----+-----+-------+-------+-----|

keyboards/iris/keymaps/dbroqua/config.h

@@ -0,0 +1,27 @@
+/*
+Copyright 2017 Danny Nguyen <danny@keeb.io>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "config_common.h"
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+
+#endif

keyboards/iris/keymaps/dbroqua/keymap.c

@@ -0,0 +1,125 @@
+
+#include QMK_KEYBOARD_H
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_LOWR LOWER
+#define KC_RASE RAISE
+#define KC_RST RESET
+#define KC_DBUG DEBUG
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  [_QWERTY] = LAYOUT_kc(
+    /*
+     * ,-----+-----+-----+-----+-----+-----+                ,-----+-----+-----+-----+-----+-----+
+     * | ESC |  1  |  2  |  3  |  4  |  5  |                |  6  |  7  |  8  |  9  |  0  |  `  |
+     * |-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * | TAB |  Q  |  W  |  E  |  R  |  T  |                |  Y  |  U  |  I  |  O  |  P  | BSPC|
+     * +-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * | LCTL|  A  |  S  |  D  |  F  |  G  |                |  H  |  J  |  K  |  L  |  ;  |  '  |
+     * +-----+-----+-----+-----+-----+-----+-----.    ,-----+-----+-----+-----+-----+-----+-----+
+     * | LSFT|  Z  |  X  |  C  |  V  |  B  |     /    \     |  N  |  M  |  ,  |  .  |  /  | RSFT|
+     * +-----+-----+-----+--+--+-----+-----+ SPC/      \ ENT+-----+-----+--+--+-----+-----+-----+
+     *                      \ LGUI| LOWR|      /        \      | RASE| LALT/
+     *                      `-----+-----+-----'          `-----+-----+----'
+     */
+     ESC , 1  , 2  , 3  , 4  , 5  ,                6  , 7  , 8  , 9  , 0  , GRV,
+     TAB , Q  , W  , E  , R  , T  ,                Y  , U  , I  , O  , P  ,BSPC,
+     LCTL, A  , S  , D  , F  , G  ,                H  , J  , K  , L  ,SCLN,QUOT,
+     LSFT, Z  , X  , C  , V  , B  ,    ,         , N  , M  ,COMM,DOT ,SLSH,RSFT,
+                       LGUI,LOWR, SPC ,        ENT ,RASE,LALT
+  ),
+
+  [_LOWER] = LAYOUT_kc(
+    /*
+     * ,-----+-----+-----+-----+-----+-----+                ,-----+-----+-----+-----+-----+-----+
+     * |  ~  |  !  |  @  |  #  |  $  |  %  |                |  ^  |  &  |  *  |  (  |  )  | BSPC|
+     * |-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * | RST |  1  |  2  |  3  |  5  |  5  |                |  6  |  7  |  8  |  9  |  0  |     |
+     * +-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * | DEL |     | LEFT| RGHT| UP  |  [  |                |  ]  |  4  |  5  |  6  |  +  |  |  |
+     * +-----+-----+-----+-----+-----+-----+-----.    ,-----+-----+-----+-----+-----+-----+-----+
+     * |     |     |     |     | DOWN|  {  |     /    \     |  }  |  1  |  2  |  3  |  -  |     |
+     * +-----+-----+-----+--+--+-----+-----+ DEL/      \ DEL+-----+-----+--+--+-----+-----+-----+
+     *                      \     |     |      /        \      |     | 0   /
+     *                      `-----+-----+-----'          `-----+-----+----'
+     */
+     TILD,EXLM, AT ,HASH,DLR ,PERC,               CIRC,AMPR,ASTR,LPRN,RPRN,BSPC,
+     RST , 1  , 2  , 3  , 4  , 5  ,                6  , 7  , 8  , 9  , 0  ,    ,
+     DEL ,    ,LEFT,RGHT, UP ,LBRC,               RBRC, P4 , P5 , P6 ,PLUS,PIPE,
+         ,    ,    ,    ,DOWN,LCBR,    ,         ,RCBR, P1 , P2 , P3 ,MINS,    ,
+                           ,    ,DEL ,         DEL ,    , P0
+  ),
+
+  [_RAISE] = LAYOUT_kc(
+    /*
+     * ,-----+-----+-----+-----+-----+-----+                ,-----+-----+-----+-----+-----+-----+
+     * | F12 |  F1 |  F2 |  F3 |  F4 |  F5 |                |  F6 |  F7 |  F8 |  F9 | F10 | F11 |
+     * |-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * |     |  !  |  @  |  #  |  $  |  %  |                |  ^  |  &  |  *  |  (  |  )  |     |
+     * +-----+-----+-----+-----+-----+-----+                +-----+-----+-----+-----+-----+-----+
+     * |     | Prev| Next| Vol+| PgUp|  _  |                |  =  | Home|     |     |  +  |  \  |
+     * +-----+-----+-----+-----+-----+-----+-----.    ,-----+-----+-----+-----+-----+-----+-----+
+     * | Mute| Stop| Play| Vol-| PgDn|  -  |     /    \     |  +  | End |     |     |     |Debug|
+     * +-----+-----+-----+--+--+-----+-----+    /      \    +-----+-----+--+--+-----+-----+-----+
+     *                      \     |     |      /        \      |     | 0   /
+     *                      `-----+-----+-----'          `-----+-----+----'
+     */
+     F12 , F1 , F2 , F3 , F4 , F5 ,                F6 , F7 , F8 , F9 ,F10 ,F11 ,
+         ,EXLM, AT ,HASH,DLR ,PERC,               CIRC,AMPR,ASTR,LPRN,RPRN,    ,
+         ,MPRV,MNXT,VOLU,PGUP,UNDS,               EQL ,HOME,    ,    ,    ,BSLS,
+     MUTE,MSTP,MPLY,VOLD,PGDN,MINS,    ,         ,PLUS,END ,    ,    ,    ,DBUG,
+                           ,    ,    ,             ,    ,
+  )
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _QWERTY);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _QWERTY);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _QWERTY);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _QWERTY);
+      }
+      return false;
+      break;
+  }
+  return true;
+}

keyboards/iris/keymaps/dbroqua/rules.mk

@@ -0,0 +1,2 @@
+RGBLIGHT_ENABLE = no
+BACKLIGHT_ENABLE = no

keyboards/iris/keymaps/drashna/config.h

@@ -15,10 +15,7 @@ You should have received a copy of the GNU General Public License
 along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
-#ifndef CONFIG_USER_H
-#define CONFIG_USER_H
-
-#include "config_common.h"
+#pragma once
 
 /* Use I2C or Serial, not both */
 
@@ -52,6 +49,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif //RGBLIGHT_ENABLE
 #endif //AUDIO_ENABLE
 
+#define QMK_ESC_OUTPUT F6 // usually COL
+#define QMK_ESC_INPUT D7 // usually ROW
+#define QMK_LED B0
+#define QMK_SPEAKER C6
 
 #undef PRODUCT
 #ifdef KEYBOARD_iris_rev2
@@ -64,7 +65,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define CTRL_LED1 7
 #define CTRL_LED2 10
 
-#define GUI_LED1 8
-#define GUI_LED2 9
+#define ALT_LED1 8
+#define GUI_LED1 9
 
-#endif

keyboards/iris/keymaps/drashna/keymap.c

@@ -43,47 +43,47 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
                                        _______, _______, _______,         _______, _______, _______
   ),
 
+  [_GAMEPAD] = LAYOUT_wrapper(
+     KC_ESC,  KC_NO,   KC_1,    KC_2,    KC_3,    KC_P,                          _______, _______, _______, _______, _______, _______,
+     KC_F1,   KC_K,    KC_Q,    KC_W,    KC_E,    KC_R,                          _______, _______, _______, _______, _______, _______,
+     KC_TAB,  KC_G,    KC_A,    KC_S,    KC_D,    KC_F,                          _______, _______, _______, _______, _______, _______,
+     KC_LCTL, KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_H,    TG_GAME,     _______, _______, _______, _______, _______, _______, _______,
+                                       LOWER,   KC_V,    KC_SPC,          _______, _______, _______
+  ),
+
 
   [_LOWER] = LAYOUT_wrapper(
      _______, _________________FUNC_LEFT_________________,                       _________________FUNC_RIGHT________________, _______,
-     KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                       KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______,
-     _______, _______, _______, _______, _______, _______,                       _______, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
-     _______, _______, _______, _______, _______, _______, _______,     _______, _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______,
+     KC_TILD, _________________LOWER_L1__________________,                       _________________LOWER_R1__________________, _______,
+     _______, ___________________BLANK___________________,                       _________________LOWER_R2__________________, KC_PIPE,
+     _______, ___________________BLANK___________________, _______,     _______, _________________LOWER_R3__________________, _______,
                                        _______, _______, _______,         _______, _______, _______
   ),
 
   [_RAISE] = LAYOUT_wrapper(
       _______, _________________FUNC_LEFT_________________,                      _________________FUNC_RIGHT________________, _______,
-      KC_GRV,  ________________NUMBER_LEFT________________,                      ________________NUMBER_RIGHT_______________, _______,
-      _______, _______, _______, _______, _______, _______,                      _______, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
-      _______, _______, _______, _______, _______, _______, _______,    _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END,  _______,
+      KC_GRV,  _________________RAISE_L1__________________,                      _________________RAISE_R1__________________, _______,
+      _______, _________________RAISE_L2__________________,                      _________________RAISE_R2__________________, KC_BSLS,
+      _______, _________________RAISE_L3__________________, _______,    _______, _________________RAISE_R3__________________, _______,
                                         _______, _______, _______,        _______, _______, _______
    ),
 
   [_ADJUST] = LAYOUT_wrapper(
-      KC_MAKE, _______, _______, _______, _______, _______,                      KC_SEC1, KC_SEC2, KC_SEC3, KC_SEC4, KC_SEC5, KC_RST,
-      VRSN,    RGB_MOD, RGB_HUI, RGB_SAI, RGB_VAI, RGB_TOG,                      KC_NUKE, _______, _______, _______, _______, EPRM,
-      _______, _______, CK_TOGG, AU_ON,   AU_OFF,  AG_NORM,                      AG_SWAP, QWERTY,  COLEMAK, DVORAK,  WORKMAN, TG(_MODS),
-      _______, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD, KC_RGB_T,_______,    _______, MG_NKRO, KC_MUTE, KC_VOLD, KC_VOLU, KC_MNXT, KC_MPLY,
+      KC_MAKE, _______, _______, _______, _______, _______,                      _________________ADJUST_R1_________________, KC_RST,
+      VRSN,    _________________ADJUST_L1_________________,                      KC_NUKE, _______, _______, _______, _______, EPRM,
+      _______, _________________ADJUST_L2_________________,                      _________________ADJUST_R2_________________, TG_MODS,
+      _______, _________________ADJUST_L3_________________, TG_GAME,    _______, _________________ADJUST_R3_________________, KC_MPLY,
                                         _______, _______, _______,        _______, _______, _______
    )
 
 };
 
 
-bool indicator_is_this_led_used(uint8_t index) {
-  switch (index) {
-#ifdef INDICATOR_LIGHTS
-    case SHFT_LED1:
-    case SHFT_LED2:
-    case CTRL_LED1:
-    case CTRL_LED2:
-    case GUI_LED1:
-    case GUI_LED2:
-      return true;
-      break;
-#endif
-    default:
-    return false;
-  }
+void matrix_init_keymap(void) {
+  DDRD &= ~(1<<5);
+  PORTD &= ~(1<<5);
+
+  DDRB &= ~(1<<0);
+  PORTB &= ~(1<<0);
 }
+

keyboards/iris/keymaps/drashna/rules.mk

@@ -13,3 +13,5 @@ SWAP_HANDS_ENABLE = no
 INDICATOR_LIGHTS  = yes
 MACROS_ENABLED    = no
 RGBLIGHT_TWINKLE  = yes
+
+BOOTLOADER        = qmk-dfu

keyboards/iris/keymaps/drashna_old/config.h

@@ -52,6 +52,10 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #endif //RGBLIGHT_ENABLE
 #endif //AUDIO_ENABLE
 
+#define QMK_ESC_OUTPUT F6 // usually COL
+#define QMK_ESC_INPUT D7 // usually ROW
+#define QMK_LED B0
+#define QMK_SPEAKER C6
 
 #undef PRODUCT
 #ifdef KEYBOARD_iris_rev2
@@ -64,7 +68,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define CTRL_LED1 6
 #define CTRL_LED2 9
 
-#define GUI_LED1 7
-#define GUI_LED2 8
+#define ALT_LED1 7
+#define GUI_LED1 8
 
 #endif

keyboards/iris/keymaps/drashna_old/keymap.c

@@ -1,89 +1 @@
-
-#include QMK_KEYBOARD_H
-#include "drashna.h"
-
-#define KC_ALAP ALT_T(KC_APP)
-#define KC_OSLG OSM(MOD_LGUI)
-const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
-
-  [_QWERTY] = LAYOUT_wrapper(
-     KC_ESC,  ________________NUMBER_LEFT________________,                       ________________NUMBER_RIGHT_______________, KC_MINS,
-     KC_TAB , _________________QWERTY_L1_________________,                       _________________QWERTY_R1_________________, KC_BSLS,
-     KC_CCCV, _________________QWERTY_L2_________________,                       _________________QWERTY_R2_________________, KC_QUOT,
-     KC_MLSF, _________________QWERTY_L3_________________, KC_ALAP,     KC_OSLG, _________________QWERTY_R3_________________, KC_MRSF,
-                             LT(_LOWER,KC_GRV), KC_SPC,  KC_BSPC,         KC_DEL,  KC_ENT,  RAISE
-  ),
-  [_COLEMAK] = LAYOUT_wrapper(
-     KC_ESC , ________________NUMBER_LEFT________________,                       ________________NUMBER_RIGHT_______________, KC_MINS,
-     KC_TAB , _________________COLEMAK_L1________________,                       _________________COLEMAK_R1________________, KC_BSLS,
-     KC_CCCV, _________________COLEMAK_L2________________,                       _________________COLEMAK_R2________________, KC_QUOT,
-     KC_MLSF, _________________COLEMAK_L3________________, KC_ALAP,     KC_OSLG, _________________COLEMAK_R3________________, KC_MRSF,
-                             LT(_LOWER,KC_GRV), KC_SPC,  KC_BSPC,         KC_DEL,  KC_ENT,  RAISE
-  ),
-  [_DVORAK] = LAYOUT_wrapper(
-     KC_ESC,  ________________NUMBER_LEFT________________,                       ________________NUMBER_RIGHT_______________, KC_MINS,
-     KC_TAB , _________________DVORAK_L1_________________,                       _________________DVORAK_R1_________________, KC_BSLS,
-     KC_CCCV, _________________DVORAK_L2_________________,                       _________________DVORAK_R2_________________, KC_QUOT,
-     KC_MLSF, _________________DVORAK_L3_________________, KC_ALAP,     KC_OSLG, _________________DVORAK_R3_________________, KC_MRSF,
-                             LT(_LOWER,KC_GRV), KC_SPC,  KC_BSPC,         KC_DEL,  KC_ENT,  RAISE
-  ),
-  [_WORKMAN] = LAYOUT_wrapper(
-     KC_ESC,  ________________NUMBER_LEFT________________,                       ________________NUMBER_RIGHT_______________, KC_MINS,
-     KC_TAB , _________________WORKMAN_L1________________,                       _________________WORKMAN_R1________________, KC_BSLS,
-     KC_CCCV, _________________WORKMAN_L2________________,                       _________________WORKMAN_R2________________, KC_QUOT,
-     KC_MLSF, _________________WORKMAN_L3________________, KC_ALAP,     KC_OSLG, _________________WORKMAN_R3________________, KC_MRSF,
-                             LT(_LOWER,KC_GRV), KC_SPC,  KC_BSPC,         KC_DEL,  KC_ENT,  RAISE
-  ),
-
-  [_MODS] = LAYOUT_wrapper(
-     _______, _______, _______, _______, _______, _______,                       _______, _______, _______, _______, _______, _______,
-     _______, _______, _______, _______, _______, _______,                       _______, _______, _______, _______, _______, _______,
-     _______, _______, _______, _______, _______, _______,                       _______, _______, _______, _______, _______, _______,
-     KC_LSFT, _______, _______, _______, _______, _______, _______,     _______, _______, _______, _______, _______, _______, KC_RSFT,
-                                       _______, _______, _______,         _______, _______, _______
-  ),
-
-
-  [_LOWER] = LAYOUT_wrapper(
-     _______, _________________FUNC_LEFT_________________,                       _________________FUNC_RIGHT________________, _______,
-     KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                       KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______,
-     _______, _______, _______, _______, _______, _______,                       _______, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE,
-     _______, _______, _______, _______, _______, _______, _______,     _______, _______, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______,
-                                       _______, _______, _______,         _______, _______, _______
-  ),
-
-  [_RAISE] = LAYOUT_wrapper(
-      _______, _________________FUNC_LEFT_________________,                      _________________FUNC_RIGHT________________, _______,
-      KC_GRV,  ________________NUMBER_LEFT________________,                      ________________NUMBER_RIGHT_______________, _______,
-      _______, _______, _______, _______, _______, _______,                      _______, KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS,
-      _______, _______, _______, _______, _______, _______, _______,    _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END,  _______,
-                                        _______, _______, _______,        _______, _______, _______
-   ),
-
-  [_ADJUST] = LAYOUT_wrapper(
-      KC_MAKE, _______, _______, _______, _______, _______,                      KC_SEC1, KC_SEC2, KC_SEC3, KC_SEC4, KC_SEC5, KC_RST,
-      VRSN,    RGB_MOD, RGB_HUI, RGB_SAI, RGB_VAI, RGB_TOG,                      KC_NUKE, _______, _______, _______, _______, EPRM,
-      _______, _______, CK_TOGG, AU_ON,   AU_OFF,  AG_NORM,                      AG_SWAP, QWERTY,  COLEMAK, DVORAK,  WORKMAN, TG(_MODS),
-      _______, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD, KC_RGB_T,_______,    _______, MG_NKRO, KC_MUTE, KC_VOLD, KC_VOLU, KC_MNXT, KC_MPLY,
-                                        _______, _______, _______,        _______, _______, _______
-   )
-
-};
-
-
-bool indicator_is_this_led_used(uint8_t index) {
-  switch (index) {
-#ifdef INDICATOR_LIGHTS
-    case SHFT_LED1:
-    case SHFT_LED2:
-    case CTRL_LED1:
-    case CTRL_LED2:
-    case GUI_LED1:
-    case GUI_LED2:
-      return true;
-      break;
-#endif
-    default:
-    return false;
-  }
-}
+// placeholder