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qmk_firmware/keyboards/handwired/d48
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James Young 2e50b34c67
Add missing info.json files for keyboards (#12239) 
Recent changes to QMK Configurator's API have made it so an info.json file is required for QMK Configurator to know how to render the keyboard in question.

This PR adds info.json files for keyboards that did not have them, with a few exceptions for boards whose layouts I was unable to determine.

* add info.json file for 2key2crawl

* add info.json file for 40percentclub/4x4

* add info.json file for 40percentclub/5x5

* add info.json file for 4pplet/aekiso60/rev_a

* add info.json file for 4pplet/steezy60/rev_a

* add info.json file for 6ball

* add info.json file for 7c8/framework

* add info.json file for aeboards/constellation

* add info.json file for alpine65

* add info.json file for aplyard/aplx6

* add info.json file for arch_36

* add info.json file for arisu

* add info.json file for box75

* add info.json file for butterstick

* add info.json file for four_banger

* add info.json file for geekboards/tester

* add info.json file for handwired/2x5keypad

* add info.json file for handwired/412_64

* add info.json file for handwired/42

* add info.json file for handwired/aplx2

* add info.json file for handwired/brain

* add info.json file for handwired/cans12er

* add info.json file for handwired/ck4x4

* add info.json file for handwired/d48

* add info.json file for handwired/dactyl_manuform/dmote/62key

* add info.json file for handwired/daishi

* add info.json file for handwired/hexon38

* add info.json file for handwired/jot50

* add info.json file for handwired/jotanck

* add info.json file for handwired/jotpad16

* add info.json file for handwired/k8split

* add info.json file for handwired/myskeeb

* add info.json file for handwired/nicekey

* add info.json file for handwired/onekey

* add info.json file for handwired/postageboard

* add info.json file for handwired/riblee_f401

* add info.json file for handwired/riblee_f411

* add info.json file for handwired/rs60

* add info.json file for handwired/splittest

* add info.json file for handwired/trackpoint

* add info.json file for handwired/traveller

* add info.json file for hhkb_lite_2

* add info.json file for honeycomb

* add info.json file for ivy/rev1

* add info.json file for keebio/viterbi

* add info.json file for laptreus

* add info.json file for latin47ble

* add info.json file for latin64ble

* add info.json file for launchpad/rev1

* add info.json file for lets_split_eh/eh

* add info.json file for mechmini/v1

* add info.json file for meira

* add info.json file for meishi

* add info.json file for merge/iso_macro

* add info.json file for mschwingen/modelm

* add info.json file for pabile/p20

* add info.json files for pimentoso/paddino02

rev1, rev2/left, and rev2/right

* add info.json file for rgbkb/pan

* add info.json files for runner3680

3x6, 3x7, 3x8, 4x6, 4x7, 4x8, 5x6, 5x7, and 5x8

* add info.json file for sck/gtm

* add info.json file for splitish

* add info.json file for standaside

* add info.json file for ungodly/launch_pad

* add info.json file for xelus/trinityxttkl

* Revert "add info.json file for rgbkb/pan"

This reverts commit 280b89bc6157023a621a9864f5d74d59d62bb511.

* correct maintainer for ivy/rev1
2021-03-15 01:06:55 -07:00
..
keymaps
config.h
d48.c
d48.h
ds1307.c
ds1307.h
glcdfont_d48.c [Keyboard] Added D48 keyboard (#8548) 2020-05-08 23:59:50 -07:00
info.json Add missing info.json files for keyboards (#12239) 2021-03-15 01:06:55 -07:00
readme.md
rules.mk Add board specific to Proton-C, with usual defaults turned on. (#10976) 2020-12-03 13:04:28 +11:00
taphold.c
taphold.h

readme.md

D48

Proton C based handwired 40% keyboard

A Proton C based handwired 48 key keyboard with 2 rotary encoders, I2C OLED, WS2812 strip, buzzer & clock!

  • Keyboard Maintainer: Andrew Dunai
  • Hardware Supported: Proton C handwired

Make example for this keyboard (after setting up your build environment):

make handwired/d48:default

Details

  • Proton C based handwired keyboard
  • 2x custom 1.25mm stainless steel plates
  • Kailh Choc White (clicky)
  • 2x rotary encoders
  • 0.91" 128x32 I2C OLED
  • Small buzzer mounted inside (still waiting for the AST1109MLTRQ boys)
  • WS2812 strip (14 LEDs)
  • DS1307 I2C module real-time clock

Build process: album

Pinout

D48 pinout

Challenges

I'm very happy with the result, but at some point Proton C was driving me nuts.

I did a lot of trial and error during assembly & programming. There were a lot of yet undocumented caveats, so I'll outline them here so that you guys can avoid the same issues I had.

Matrix & encoders

Although this is a 48-key board with a 12-col & 4-row matrix, I've decided to add an extra row above the first one to make my matrix 12x5 and wire encoders' push buttons as 2 extra keys, thus making it a total of 50 (12x4 + 2 encoders). I used 2 columns (9 & 12) for those buttons.

So, a first row actually has 2 buttons on columns 9 & 12 (because encoders are located near those columns). Encoders' push buttons are also configured via QMK's keymap.

Check out the d48.h & config.h for pins used & keymap macro definition.

I2C/OLED

Most of the stuff worked out of the box, except me choosing the right pins for my OLED.

On the Proton C pinout, there are 3 labels for I2C and for some reason there are 2 pairs of SDA/SCL for I2C1 channel: B8/B9 (rear left side) and B6/B7 (rear right side). I'm not sure if this is a mistake or if I was doing something wrong. So initially I picked B8/B9 which were not working. When I switched to B6/B7, things worked like a charm. Later I used B9 for matrix row. No issues so far.

Oh, and by the way, while using B8/B9, keyboard was sometimes swallowing quick keypresses. I believe this was due to I(2)C timeouts (because incorrect pins were used for OLED).

Buzzer

It turns out once you switch on AUDIO_ENABLE, you cannot use A4 & A5 because they interfere with the buzzer. My guess is that buzzer uses DAC channels (not sure why both).

I couldn't find this in documentation. Honestly, Proton C has almost zero documentation and this was the biggest challenge. Anyway, apart from almost going crazy from those challenges, I really liked it!

RGB

I used pin A15 for my WS28128 RGB strip.

D1307 real-time clock

Connecting DS1307 RTC was a piece of cake: same I2 pins as OLED (SDA/SCL), GND to GND and power to Proton C VUSB pin (5v).

Other issues

  • B5 could not be used for matrix.
  • TAP_CODE_DELAY had to be increased to 10 to fix tap_code(KC_VOLU/KC_VOLD) calls being swallowed in encoder callback.
  • Be extremely attentive about the pinout: keep in mind that the official Proton C pinout displays the rear of the board, not the front. Being used to front pinouts, I ended up soldering entire matrix to the wrong side, so I had to desolder every wire and connect it to the opposite side.

Conclusion

I had a lot of fun. The layout was inspired by the Planck THK. Feel free to ask any questions!