~ruther/qmk_firmware

1f7bbf279c925240630daacd3c29d51719112c3f — Andrew Dunai 5 years ago 803610a
[Keyboard] Added D48 keyboard (#8548)

* [Keyboard] Added D48 keyboard.

* Updated README.

* Cleanups.

* Moved d48 to handwired/

* Added link to build process album.

* Coding conventions cleanups.

* Added DS1307 RTC!

* Minor cleanups.

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Minor refactoring.

* Readme fix.

* Moved leftover keymap-specific code from keyboard space into keymap.

* Added encoder button pins to extra matrix row.

* Updated README, updated pinout & cleaned up the glcdfont

* Apply suggestions from code review

Co-Authored-By: Drashna Jaelre <drashna@live.com>

* Update config.h

* Apply suggestions from code review

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Added default keymap. Refactored existing keymap.

* Update keyboards/handwired/d48/README.md

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Apply suggestions from code review

Co-Authored-By: Joel Challis <git@zvecr.com>

* Minor alignment fix.

* Update keyboards/handwired/d48/glcdfont_d48.c

Co-Authored-By: Ryan <fauxpark@gmail.com>

* Changes as per PR.

* Apply suggestions from code review

Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>

Co-authored-by: Drashna Jaelre <drashna@live.com>
Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Joel Challis <git@zvecr.com>
Co-authored-by: James Young <18669334+noroadsleft@users.noreply.github.com>
A keyboards/handwired/d48/README.md => keyboards/handwired/d48/README.md +87 -0
@@ 0,0 1,87 @@
# D48

![Proton C based handwired 40% keyboard](https://i.imgur.com/2wCYuno.jpg)

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 I<sup>2</sup>C OLED
- Small buzzer mounted inside (still waiting for the AST1109MLTRQ boys)
- WS2812 strip (14 LEDs)
- DS1307 I<sup>2</sup>C module real-time clock

Build process: [album](https://imgur.com/gallery/zZZGdDw)

## Pinout

![D48 pinout](https://imgur.com/QoStCvD.jpg)

## 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.

## I<sup>2</sup>C/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 I<sup>2</sup>C and for some reason
there are 2 pairs of SDA/SCL for I<sup>2</sup>C<sup>1</sup> 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 I<sup>2</sup> 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!

A keyboards/handwired/d48/config.h => keyboards/handwired/d48/config.h +77 -0
@@ 0,0 1,77 @@
#pragma once

#include "config_common.h"

/* USB Device descriptor parameter */
#define VENDOR_ID       0xFEED
#define PRODUCT_ID      0x6060
#define DEVICE_VER      0x0001
#define MANUFACTURER    Andrew Dunai
#define PRODUCT         D48

/* Key matrix size */
#define MATRIX_ROWS 5
#define MATRIX_COLS 12

/* Key matrix pins */
#define MATRIX_ROW_PINS { B8, B9, B1, B2, B4 }

#define MATRIX_COL_PINS { A2, B0, A7, A8, A13, A14, B12, B11, B10, B15, B14, B13 }
#define UNUSED_PINS

/* COL2ROW or ROW2COL */
#define DIODE_DIRECTION COL2ROW

/* Set 0 if debouncing isn't needed */
// #define DEBOUNCE 5

/* 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

/* prevent stuck modifiers */
// #define PREVENT_STUCK_MODIFIERS

/* RGB Underglow */
#ifdef RGBLIGHT_ENABLE
#define RGB_DI_PIN A15
#define RGBLED_NUM 14
#define RGBLIGHT_HUE_STEP 8
#define RGBLIGHT_SAT_STEP 8
#define RGBLIGHT_VAL_STEP 8
#define RGBLIGHT_ANIMATIONS
#endif

/* Audio */
#ifdef AUDIO_ENABLE
#define STARTUP_SONG_DOOM SONG(E1M1_DOOM)
#define STARTUP_SONG SONG( \
    Q__NOTE(_E6), \
    Q__NOTE(_A6), \
    H__NOTE(_E7), \
    Q__NOTE(_E6), \
    Q__NOTE(_E7) \
)
#endif

/* Encoders */
#define ENCODERS_PAD_A { B3, A0 }
#define ENCODERS_PAD_B { A6, A1 }
/* #define ENCODER_RESOLUTION 4 */

/* OLED */
#define OLED_FONT_H "glcdfont_d48.c"
#define OLED_TIMEOUT 0
// #define OLED_SCROLL_TIMEOUT 1000

/* Taps (encoder tap_code) */
#define TAP_CODE_DELAY 10

/* I2C */
//#define I2C1_DUTY_CYCLE FAST_DUTY_CYCLE_2
//#define PAL_MODE_STM32_ALTERNATE_OPENDRAIN (PAL_MODE_ALTERNATE(4) | PAL_STM32_OTYPE_OPENDRAIN)

/* DS1307 */
#define DS1307_ADDR (0x68 << 1)

A keyboards/handwired/d48/d48.c => keyboards/handwired/d48/d48.c +1 -0
@@ 0,0 1,1 @@
#include "d48.h"

A keyboards/handwired/d48/d48.h => keyboards/handwired/d48/d48.h +19 -0
@@ 0,0 1,19 @@
#pragma once

#include "quantum.h"

#define ___ KC_NO

#define LAYOUT( \
                                            K08,           K0B, \
    K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B, \
    K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B, \
    K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B, \
    K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, K4A, K4B \
) { \
    { ___, ___, ___, ___, ___, ___, ___, ___, K08, ___, ___, K0B }, \
    { K10, K11, K12, K13, K14, K15, K16, K17, K18, K19, K1A, K1B }, \
    { K20, K21, K22, K23, K24, K25, K26, K27, K28, K29, K2A, K2B }, \
    { K30, K31, K32, K33, K34, K35, K36, K37, K38, K39, K3A, K3B }, \
    { K40, K41, K42, K43, K44, K45, K46, K47, K48, K49, K4A, K4B } \
}

A keyboards/handwired/d48/ds1307.c => keyboards/handwired/d48/ds1307.c +21 -0
@@ 0,0 1,21 @@
#include "ds1307.h"
#include "i2c_master.h"

void ds1307_set_time(uint8_t h, uint8_t m, uint8_t s) {
    uint8_t data[] = {
        ((s % 10) | ((s / 10) << 4)) & 0x7F,
        ((m % 10) | ((m / 10) << 4)) & 0x7F,
        ((h % 10) | ((h / 10) << 4)) & 0x3F,
        0, 0, 0, 0, 0
    }; // 24-hour mode
    i2c_writeReg(DS1307_ADDR, 0, data, 8, 100);
}

void ds1307_get_time(uint8_t *h, uint8_t *m, uint8_t *s) {
    uint8_t data[3];
    i2c_readReg(DS1307_ADDR, 0, data, 3, 100);
    i2c_stop();
    *s = (data[0] & 0b1111) + ((data[0] & 0b1110000) >> 4) * 10;
    *m = (data[1] & 0b1111) + ((data[1] & 0b1110000) >> 4) * 10;
    *h = (data[2] & 0b1111) + ((data[2] & 0b0110000) >> 4) * 10;
}

A keyboards/handwired/d48/ds1307.h => keyboards/handwired/d48/ds1307.h +6 -0
@@ 0,0 1,6 @@
#pragma once

#include <stdint.h>

void ds1307_set_time(uint8_t h, uint8_t m, uint8_t s);
void ds1307_get_time(uint8_t *h, uint8_t *m, uint8_t *s);

A keyboards/handwired/d48/glcdfont_d48.c => keyboards/handwired/d48/glcdfont_d48.c +231 -0
@@ 0,0 1,231 @@
#include "progmem.h"

// Helidox 8x6 font with QMK Firmware Logo
// Online editor: http://teripom.x0.com/

static const unsigned char font[] PROGMEM = {
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x3E, 0x5B, 0x4F, 0x5B, 0x3E, 0x00,
  0x3E, 0x6B, 0x4F, 0x6B, 0x3E, 0x00,
  0x1C, 0x3E, 0x7C, 0x3E, 0x1C, 0x00,
  0x18, 0x3C, 0x7E, 0x3C, 0x18, 0x00,
  0x1C, 0x57, 0x7D, 0x57, 0x1C, 0x00,
  0x1C, 0x5E, 0x7F, 0x5E, 0x1C, 0x00,
  0x00, 0x00, 0x08, 0x08, 0x00, 0x00,
  0xFF, 0xE7, 0xC3, 0xE7, 0xFF, 0x00,
  0x00, 0x18, 0x24, 0x18, 0x00, 0x00,
  0xFF, 0xE7, 0xDB, 0xE7, 0xFF, 0x00,
  0x30, 0x48, 0x3A, 0x06, 0x0E, 0x00,
  0x26, 0x29, 0x79, 0x29, 0x26, 0x00,
  0x40, 0x7F, 0x05, 0x05, 0x07, 0x00,
  0x40, 0x7F, 0x05, 0x25, 0x3F, 0x00,
  0x5A, 0x3C, 0xE7, 0x3C, 0x5A, 0x00,
  0x7F, 0x3E, 0x1C, 0x1C, 0x08, 0x00,
  0x08, 0x1C, 0x1C, 0x3E, 0x7F, 0x00,
  0x14, 0x22, 0x7F, 0x22, 0x14, 0x00,
  0x5F, 0x5F, 0x00, 0x5F, 0x5F, 0x00,
  0x06, 0x09, 0x7F, 0x01, 0x7F, 0x00,
  0x00, 0x66, 0x89, 0x95, 0x6A, 0x00,
  0x60, 0x60, 0x60, 0x60, 0x60, 0x00,
  0x94, 0xA2, 0xFF, 0xA2, 0x94, 0x00,
  0x08, 0x04, 0x7E, 0x04, 0x08, 0x00,
  0x10, 0x20, 0x7E, 0x20, 0x10, 0x00,
  0x08, 0x08, 0x2A, 0x1C, 0x08, 0x00,
  0x08, 0x1C, 0x2A, 0x08, 0x08, 0x00,
  0x1E, 0x10, 0x10, 0x10, 0x10, 0x00,
  0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 0x00,
  0x30, 0x38, 0x3E, 0x38, 0x30, 0x00,
  0x06, 0x0E, 0x3E, 0x0E, 0x06, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x5F, 0x00, 0x00, 0x00,
  0x00, 0x07, 0x00, 0x07, 0x00, 0x00,
  0x14, 0x7F, 0x14, 0x7F, 0x14, 0x00,
  0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x00,
  0x23, 0x13, 0x08, 0x64, 0x62, 0x00,
  0x36, 0x49, 0x56, 0x20, 0x50, 0x00,
  0x00, 0x08, 0x07, 0x03, 0x00, 0x00,
  0x00, 0x1C, 0x22, 0x41, 0x00, 0x00,
  0x00, 0x41, 0x22, 0x1C, 0x00, 0x00,
  0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 0x00,
  0x08, 0x08, 0x3E, 0x08, 0x08, 0x00,
  0x00, 0x80, 0x70, 0x30, 0x00, 0x00,
  0x08, 0x08, 0x08, 0x08, 0x08, 0x00,
  0x00, 0x00, 0x60, 0x60, 0x00, 0x00,
  0x20, 0x10, 0x08, 0x04, 0x02, 0x00,
  0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00,
  0x00, 0x42, 0x7F, 0x40, 0x00, 0x00,
  0x72, 0x49, 0x49, 0x49, 0x46, 0x00,
  0x21, 0x41, 0x49, 0x4D, 0x33, 0x00,
  0x18, 0x14, 0x12, 0x7F, 0x10, 0x00,
  0x27, 0x45, 0x45, 0x45, 0x39, 0x00,
  0x3C, 0x4A, 0x49, 0x49, 0x31, 0x00,
  0x41, 0x21, 0x11, 0x09, 0x07, 0x00,
  0x36, 0x49, 0x49, 0x49, 0x36, 0x00,
  0x46, 0x49, 0x49, 0x29, 0x1E, 0x00,
  0x00, 0x00, 0x14, 0x00, 0x00, 0x00,
  0x00, 0x40, 0x34, 0x00, 0x00, 0x00,
  0x00, 0x08, 0x14, 0x22, 0x41, 0x00,
  0x14, 0x14, 0x14, 0x14, 0x14, 0x00,
  0x00, 0x41, 0x22, 0x14, 0x08, 0x00,
  0x02, 0x01, 0x59, 0x09, 0x06, 0x00,
  0x3E, 0x41, 0x5D, 0x59, 0x4E, 0x00,
  0x7C, 0x12, 0x11, 0x12, 0x7C, 0x00,
  0x7F, 0x49, 0x49, 0x49, 0x36, 0x00,
  0x3E, 0x41, 0x41, 0x41, 0x22, 0x00,
  0x7F, 0x41, 0x41, 0x41, 0x3E, 0x00,
  0x7F, 0x49, 0x49, 0x49, 0x41, 0x00,
  0x7F, 0x09, 0x09, 0x09, 0x01, 0x00,
  0x3E, 0x41, 0x41, 0x51, 0x73, 0x00,
  0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00,
  0x00, 0x41, 0x7F, 0x41, 0x00, 0x00,
  0x20, 0x40, 0x41, 0x3F, 0x01, 0x00,
  0x7F, 0x08, 0x14, 0x22, 0x41, 0x00,
  0x7F, 0x40, 0x40, 0x40, 0x40, 0x00,
  0x7F, 0x02, 0x1C, 0x02, 0x7F, 0x00,
  0x7F, 0x04, 0x08, 0x10, 0x7F, 0x00,
  0x3E, 0x41, 0x41, 0x41, 0x3E, 0x00,
  0x7F, 0x09, 0x09, 0x09, 0x06, 0x00,
  0x3E, 0x41, 0x51, 0x21, 0x5E, 0x00,
  0x7F, 0x09, 0x19, 0x29, 0x46, 0x00,
  0x26, 0x49, 0x49, 0x49, 0x32, 0x00,
  0x03, 0x01, 0x7F, 0x01, 0x03, 0x00,
  0x3F, 0x40, 0x40, 0x40, 0x3F, 0x00,
  0x1F, 0x20, 0x40, 0x20, 0x1F, 0x00,
  0x3F, 0x40, 0x38, 0x40, 0x3F, 0x00,
  0x63, 0x14, 0x08, 0x14, 0x63, 0x00,
  0x03, 0x04, 0x78, 0x04, 0x03, 0x00,
  0x61, 0x59, 0x49, 0x4D, 0x43, 0x00,
  0x00, 0x7F, 0x41, 0x41, 0x41, 0x00,
  0x02, 0x04, 0x08, 0x10, 0x20, 0x00,
  0x00, 0x41, 0x41, 0x41, 0x7F, 0x00,
  0x04, 0x02, 0x01, 0x02, 0x04, 0x00,
  0x40, 0x40, 0x40, 0x40, 0x40, 0x00,
  0x00, 0x03, 0x07, 0x08, 0x00, 0x00,
  0x20, 0x54, 0x54, 0x78, 0x40, 0x00,
  0x7F, 0x28, 0x44, 0x44, 0x38, 0x00,
  0x38, 0x44, 0x44, 0x44, 0x28, 0x00,
  0x38, 0x44, 0x44, 0x28, 0x7F, 0x00,
  0x38, 0x54, 0x54, 0x54, 0x18, 0x00,
  0x00, 0x08, 0x7E, 0x09, 0x02, 0x00,
  0x18, 0xA4, 0xA4, 0x9C, 0x78, 0x00,
  0x7F, 0x08, 0x04, 0x04, 0x78, 0x00,
  0x00, 0x44, 0x7D, 0x40, 0x00, 0x00,
  0x20, 0x40, 0x40, 0x3D, 0x00, 0x00,
  0x7F, 0x10, 0x28, 0x44, 0x00, 0x00,
  0x00, 0x41, 0x7F, 0x40, 0x00, 0x00,
  0x7C, 0x04, 0x78, 0x04, 0x78, 0x00,
  0x7C, 0x08, 0x04, 0x04, 0x78, 0x00,
  0x38, 0x44, 0x44, 0x44, 0x38, 0x00,
  0xFC, 0x18, 0x24, 0x24, 0x18, 0x00,
  0x18, 0x24, 0x24, 0x18, 0xFC, 0x00,
  0x7C, 0x08, 0x04, 0x04, 0x08, 0x00,
  0x48, 0x54, 0x54, 0x54, 0x24, 0x00,
  0x04, 0x04, 0x3F, 0x44, 0x24, 0x00,
  0x3C, 0x40, 0x40, 0x20, 0x7C, 0x00,
  0x1C, 0x20, 0x40, 0x20, 0x1C, 0x00,
  0x3C, 0x40, 0x30, 0x40, 0x3C, 0x00,
  0x44, 0x28, 0x10, 0x28, 0x44, 0x00,
  0x4C, 0x90, 0x90, 0x90, 0x7C, 0x00,
  0x44, 0x64, 0x54, 0x4C, 0x44, 0x00,
  0x00, 0x08, 0x36, 0x41, 0x00, 0x00,
  0x00, 0x00, 0x77, 0x00, 0x00, 0x00,
  0x00, 0x41, 0x36, 0x08, 0x00, 0x00,
  0x02, 0x01, 0x02, 0x04, 0x02, 0x00,
  0x3C, 0x26, 0x23, 0x26, 0x3C, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x60, 0x70, 0x78, 0x3C,
  0x1E, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0xE0,
  0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFC,
  0xE0, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x07,
  0x07, 0x07, 0x07, 0x07, 0x07, 0x0F,
  0x1F, 0xFE, 0xFE, 0xF8, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xF0, 0xFC, 0xFE, 0xFE, 0x3F,
  0x1F, 0x0F, 0x0F, 0x0F, 0x0F, 0x9F,
  0xFF, 0xFE, 0xFE, 0xFC, 0xF0, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x3E, 0x22, 0x22, 0x00, 0x02, 0x3E,
  0x02, 0x00, 0x3E, 0x20, 0x20, 0x00,
  0x00, 0x3C, 0x0A, 0x3C, 0x00, 0x3E,
  0x20, 0x20, 0x02, 0x3E, 0x02, 0x00,
  0x00, 0x1C, 0x22, 0x32, 0x00, 0x1E,
  0x20, 0x20, 0x1E, 0x00, 0x3E, 0x00,
  0x00, 0x2C, 0x2A, 0x1A, 0x00, 0x3E,
  0x0A, 0x02, 0x00, 0x02, 0x3E, 0x02,
  0x00, 0x00, 0x08, 0x08, 0x08, 0x08,
  0x08, 0x08, 0x08, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0xC0, 0xF8, 0xFF, 0xFF,
  0xFF, 0xE7, 0xE0, 0xE0, 0xE7, 0xFF,
  0xFF, 0xFF, 0xF8, 0xC0, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x3C,
  0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x7E,
  0xFF, 0xE7, 0xE7, 0x81, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xE0,
  0xF0, 0xF8, 0x7C, 0x3E, 0x1F, 0x0F,
  0x07, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x22, 0x22, 0x00, 0x00,
  0x0F, 0x0F, 0x2F, 0x2F, 0x0F, 0x0F,
  0xF0, 0xF0, 0xF2, 0xF2, 0xF0, 0xF0,
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  0x00, 0x00, 0x22, 0x22, 0x00, 0xFF,
  0x0F, 0x0F, 0x2F, 0x2F, 0x0F, 0xFF,
  0xF0, 0xF0, 0xF2, 0xF2, 0xF0, 0xFF,
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0xF0, 0xFE, 0xFF, 0xFF, 0x0F, 0x01,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x01, 0x0F, 0xFF, 0xFF, 0xFE, 0xF0,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0xE0,
  0xE0, 0xE0, 0xE0, 0xE0, 0xE0, 0xF0,
  0xF8, 0x7F, 0x7F, 0x1F, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x0F, 0x3F, 0x7F, 0x7F, 0xFF,
  0xF9, 0xF0, 0xF0, 0xF0, 0xF0, 0xF8,
  0xFC, 0x7F, 0x7F, 0x3F, 0x0F, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x1F, 0x1F, 0x1F, 0x1F, 0x1F,
  0xFF, 0xF1, 0xF1, 0xF1, 0xF1, 0xF1,
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
  0xFF, 0x11, 0x11, 0x11, 0x11, 0x11,
};

A keyboards/handwired/d48/keymaps/anderson/keymap.c => keyboards/handwired/d48/keymaps/anderson/keymap.c +340 -0
@@ 0,0 1,340 @@
#include QMK_KEYBOARD_H
#include "taphold.h"
#include "seq.h"
#include "ds1307.h"
#include "lightmode.h"
#include <stdio.h>

/* Note: don't forget there's some more code in qmk_firmware/users/anderson dir */

#define _MAIN 0
#define _ALPHA 1
#define _BETA 2

enum custom_keycodes {
    KC_MAIN = SAFE_RANGE,
    KC_ALPHA,
    KC_BETA,
#ifdef LIGHTMODE_ENABLE
    KC_LIGHT_MODE,
#endif
    KC_SEQ,
    KC_SET_TIME,
};
#ifdef LIGHTMODE_ENABLE
#endif

/* TapHold is my own implementation of the `LT` macro. It's processed in `process_record_user()`. */
#define TAPHOLD_CONFIG_SIZE 3
taphold_t taphold_config[TAPHOLD_CONFIG_SIZE] = {
    {.key=KC_ALPHA, .mode=TAPHOLD_LAYER, .shortAction=KC_ESC, .longAction=_ALPHA},
    {.key=KC_BETA, .mode=TAPHOLD_LAYER, .shortAction=KC_EQL, .longAction=_BETA},
    {.key=KC_RCTRL, .mode=TAPHOLD_MOD, .shortAction=KC_MINS, .longAction=KC_LCTRL},
};
uint16_t taphold_config_size = TAPHOLD_CONFIG_SIZE;
uint32_t taphold_timeout = 90;

/* Seq is implementation of unicode macros similar to UCIS, but with unicode strings. */
#define SEQ_CONFIG_SIZE 3
seq_t seq_config[SEQ_CONFIG_SIZE] = {
    {.sequence="temp", .result="42°C"},
    {.sequence="table", .result="┳━━┳"},
    {.sequence="shrug", .result="¯\\_(ツ)_/¯"}
};
uint16_t seq_config_size = SEQ_CONFIG_SIZE;

/* Colors */
uint32_t layer_colors[3] = {
    [_MAIN] = 0xFF0010,
    [_ALPHA] = 0x4020FF,
    [_BETA] = 0x20FF00,
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Main layer
                                                       │MUTE │           │L_MOD│
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃ TAB ┃  Q  │  W  │  E  │  R  │  T  ┃  Y  │  U  │  I  │  O  │  P  ┃ BSP ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃𝛼/ESC┃  A  │  S  │  D  │  F  │  G  ┃  H  │  J  │  K  │  L  │  ;  ┃ RET ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃SHIFT┃  Z  │  X  │  C  │  V  │  B  ┃  N  │  M  │  ,  │  .  │  /  ┃CTL/-┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃LCTRL┃     │     │ ALT │ GUI │SPACE┃SPACE│ 𝛽/= │  '  │     │     ┃  \  ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_MAIN] = LAYOUT( \
                                                                                KC_MUTE,                   LCTL(KC_D),
        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
        KC_ALPHA,KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, 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_RCTRL,\
        KC_LCTRL,_______, _______, KC_LALT, KC_LGUI, KC_SPC,  KC_SPC,  KC_BETA, KC_QUOT, _______, _______, KC_BSLS  \
    ),

    /* Alpha layer (𝛼)
                                                       │     │           │     │
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃     ┃PREV │PLAY │NEXT │     │NUMLK┃  -  │ ^^^ │  ^  │ vvv │  ~  ┃ DEL ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │VOL -│VOL +│     │CPSLK┃HOME │ <-- │  v  │ --> │  `  ┃  \  ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │SCRLK┃ END │  =  │  [  │  ]  │  (  ┃  )  ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │     ┃     │     │     │     │     ┃     ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_ALPHA] = LAYOUT( \
                                                                                _______,                   _______, \
        _______, KC_MPRV, KC_MPLY, KC_MNXT, _______, KC_NLCK, KC_MINS, KC_PGUP, KC_UP,   KC_PGDN, KC_TILD, KC_DEL,  \
        _______, _______, KC_VOLD, KC_VOLU, _______, KC_CAPS, KC_HOME, KC_LEFT, KC_DOWN, KC_RIGHT,KC_GRV,  KC_BSLS, \
        _______, _______, _______, _______, _______, KC_SLCK, KC_END,  KC_EQL,  KC_LBRC, KC_RBRC, KC_LPRN ,KC_RPRN, \
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
    ),

    /* Beta layer (𝛽)
                                                       │     │           │     │
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃ RGB ┃  1  │  2  │  3  │  4  │  5  ┃  6  │  7  │  8  │  9  │  0  ┃ F12 ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃L_MOD┃ F1  │ F2  │ F3  │ F4  │ F5  ┃ F6  │ F7  │ F8  │ F9  │ F10 ┃ F11 ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃RESET│DEBUG│     │     │TIME ┃SLEEP│ SEQ │  {  │  }  │PTSCR┃     ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │     ┃     │     │     │     │     ┃     ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_BETA] = LAYOUT( \
                                                                                _______,                   _______, \
        RGB_TOG, KC_1,  KC_2,    KC_3,   KC_4,    KC_5,     KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_F12,
#ifdef LIGHTMODE_ENABLE
        KC_LIGHT_MODE,
#else
        _______,
#endif
                 KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  \
        _______, RESET,   DEBUG,   _______, _______, KC_SET_TIME,KC_SLEP,KC_SEQ,KC_LCBR, KC_RCBR, KC_PSCR, _______, \
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
    )
};

static bool alpha_pressed = false;
static bool beta_pressed = false;

static bool ctrl_pressed = false;
static bool alt_pressed = false;
static bool shift_pressed = false;
static bool gui_pressed = false;

static bool is_in_seq = false;

void keyboard_post_init_user(void) {
    /* debug_enable = true; */
    /* debug_matrix = true; */
}

void eeconfig_init_user(void) {
    set_unicode_input_mode(UC_LNX);
}

void matrix_init_user(void) {
#ifdef LIGHTMODE_ENABLE
    set_light_mode(SMOOTHLED, layer_colors[_MAIN]);
#endif
}

static uint32_t last_update = 0;
static uint8_t hours, minutes, seconds;

void matrix_scan_user(void) {
    uint32_t now = timer_read32();
    if (now - last_update > 500) {
        ds1307_get_time(&hours, &minutes, &seconds);
        last_update = now;
    }
}

static bool is_in_set_time = false;
static char new_time[6];
static uint8_t new_time_index = 0;

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    if (keycode == KC_SEQ && record->event.pressed) {
        seq_start();
        layer_off(_BETA);
        is_in_seq = true;
        return false;
    } else if (is_in_seq) {
        if (record->event.pressed) {
            if (!seq_feed(keycode)) {
                is_in_seq = false;
            }
        }
        return false;
    }
    if (keycode == KC_SET_TIME && record->event.pressed) {
        is_in_set_time = true;
        new_time_index = 0;
    } else if (is_in_set_time) {
        if (!record->event.pressed && keycode >= KC_1 && keycode <= KC_0) {
            new_time[new_time_index++] = (keycode == KC_0) ? 0 : keycode - KC_1 + 1;
            if (new_time_index == 6) {
                is_in_set_time = false;
                ds1307_set_time(
                        (new_time[0]) * 10 + (new_time[1]),
                        (new_time[2]) * 10 + (new_time[3]),
                        (new_time[4]) * 10 + (new_time[5])
                );
                for (int i = 0; i < 6; i++) {
                    tap_code(KC_BSPACE);
                }
            }
        }
    }

    if (keycode == KC_LCTRL || keycode == KC_RCTRL) {
        ctrl_pressed = record->event.pressed;
    } else if (keycode == KC_LALT) {
        alt_pressed = record->event.pressed;
    } else if (keycode == KC_LSFT) {
        shift_pressed = record->event.pressed;
    } else if (keycode == KC_LGUI) {
        gui_pressed = record->event.pressed;
    } else if (keycode == KC_ALPHA) {
        alpha_pressed = record->event.pressed;
    } else if (keycode == KC_BETA) {
        beta_pressed = record->event.pressed;
    }

    if (keycode == RESET) {
        rgblight_setrgb(255, 255, 0);
    }
#ifdef LIGHTMODE_ENABLE
    if (record->event.pressed && keycode == KC_LIGHT_MODE) {
        next_light_mode(layer_colors[_MAIN]);
    }
#endif
    if (keycode == KC_LCTRL) {
        /* Some Overlay1_Enable fuckery! */
        (record->event.pressed ? register_code : unregister_code)(KC_LCTRL);
        return false;
    }
    return taphold_process(keycode, record);
}

layer_state_t layer_state_set_user(layer_state_t state) {
#ifdef LIGHTMODE_ENABLE
    uint8_t layer = get_highest_layer(state);
    update_light_mode(layer_colors[layer]);
#endif
    return state;
}

void encoder_update_user(uint8_t index, bool clockwise) {
    if (index == 0) {
        if (!alpha_pressed) {
            tap_code(clockwise ? KC_VOLD : KC_VOLU);
        } else {
            tap_code(clockwise ? KC_MPRV : KC_MNXT);
        }
    } else if (index == 1) {
        if (!alpha_pressed) {
            tap_code(clockwise ? KC_UP : KC_DOWN);
        } else {
            tap_code(clockwise ? KC_PGUP : KC_PGDN);
        }
    }
}

#ifdef OLED_DRIVER_ENABLE
oled_rotation_t oled_init_user(oled_rotation_t rotation) {
    return OLED_ROTATION_0;
}

void oled_task_user(void) {
    /* Host Keyboard Layer Status */
    uint8_t current_layer = get_highest_layer(layer_state);

    /* Layer */
    static const char PROGMEM icons[4][3][6] = {
        {
            { 0x80, 0x81, 0x82, 0x83, 0x84, 0 },
            { 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0 },
            { 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0 }
        },
        {
            { 0x85, 0x86, 0x87, 0x88, 0x89, 0 },
            { 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0 },
            { 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0 }
        },
        {
            { 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0 },
            { 0xaa, 0xab, 0xac, 0xad, 0xae, 0 },
            { 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0 }
        },
        {
            { 0x8f, 0x90, 0x91, 0x92, 0x93, 0 },
            { 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0 },
            { 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0 }
        }
    };

    uint8_t icon_index = current_layer == _MAIN ? 3 : current_layer == _ALPHA ? 1 : 2;
    for (int i = 0; i < 3; i++) {
        oled_set_cursor(0, i + 1);
        oled_write_P(icons[icon_index][i], false);
    }

    /* Time */
    oled_set_cursor(6, 0);
    // oled_write_P(PSTR("-D48 Custom-\n"), false);
    char buf[16];
    sprintf(
            buf,
            "%02d:%02d:%02d", hours, minutes, seconds
    );
    oled_write(buf, false);

    /* Modifiers */
    static const char PROGMEM mods[][2] = {
        {0x94, 0x95}, // CTL
        {0x96, 0x97}, // ALT
        {0x98, 0x99}, // GUI
        {0x9a, 0x9b},  // SFT
        /* {0x9c, 0x9d},  // EMPTY */
    };

    char mod_data[13] = "\x9c\x9d\x9c\x9d\x9c\x9d\x9c\x9d \x07\x07\x07\0";
    if (ctrl_pressed) strncpy(mod_data, mods[0], 2);
    if (alt_pressed) strncpy(mod_data + 2, mods[1], 2);
    if (gui_pressed) strncpy(mod_data + 4, mods[2], 2);
    if (shift_pressed) strncpy(mod_data + 6, mods[3], 2);
    led_t led_usb_state = host_keyboard_led_state();
    if (led_usb_state.num_lock) mod_data[9] = 'N';
    if (led_usb_state.caps_lock) mod_data[10] = 'C';
    if (led_usb_state.scroll_lock) mod_data[11] = 'S';

    oled_set_cursor(6, 1);
    oled_write(mod_data, false);

    /* Matrix */
    static const char PROGMEM matrix_chars[] = {
        0xb4, // None
        0xb5, // Upper
        0xb6, // Lower
        0xb7  // Both
    };

    for (uint8_t row = 1; row < MATRIX_ROWS; row += 2) {
        // Skip first row because it's used by the encoders.
        uint16_t bits1 = matrix_get_row(row);
        uint16_t bits2 = matrix_get_row(row + 1);

        for (uint8_t col = 0; col < MATRIX_COLS; col++) {
            uint8_t matrix_char = matrix_chars[((bits1 & (1 << col)) ? 1 : 0) | ((bits2 & (1 << col)) ? 2 : 0)];
            oled_set_cursor(6 + col, 2 + (row - 1) / 2);
            oled_write_char(matrix_char, false);
        }
    }

}
#endif

A keyboards/handwired/d48/keymaps/anderson/lightmode.c => keyboards/handwired/d48/keymaps/anderson/lightmode.c +44 -0
@@ 0,0 1,44 @@
#include "lightmode.h"

#ifdef LIGHTMODE_ENABLE

/* Light modes switcher */

uint8_t light_mode = SMOOTHLED;

void set_light_mode(light_mode_t value, uint32_t color) {
    light_mode = value;
    if (light_mode == SMOOTHLED) {
        smoothled_set(color);
    } else {
        dmc12_start(color, true);
    }
}

void process_light_mode(void) {
    if (light_mode == SMOOTHLED) {
        smoothled_process();
    } else {
        dmc12_process();
    }
}

void update_light_mode(uint32_t color) {
    if (light_mode == SMOOTHLED) {
        smoothled_set(color);
    } else {
        dmc12_start(color, false);
    }
}

void next_light_mode(uint32_t color) {
    light_mode = (light_mode + 1) % LIGHT_MODE_SIZE;
    set_light_mode(light_mode, color);
}

void matrix_scan_kb(void) {
    process_light_mode();
    matrix_scan_user();
}

#endif

A keyboards/handwired/d48/keymaps/anderson/lightmode.h => keyboards/handwired/d48/keymaps/anderson/lightmode.h +12 -0
@@ 0,0 1,12 @@
#include "smoothled.h"
#include "dmc12.h"
#include "quantum.h"

/* Light modes */
enum light_mode_enum { SMOOTHLED, DMC12, LIGHT_MODE_SIZE };
typedef enum light_mode_enum light_mode_t;

void set_light_mode(light_mode_t value, uint32_t color);
void process_light_mode(void);
void update_light_mode(uint32_t color);
void next_light_mode(uint32_t color);

A keyboards/handwired/d48/keymaps/anderson/rules.mk => keyboards/handwired/d48/keymaps/anderson/rules.mk +2 -0
@@ 0,0 1,2 @@
OPT_DEFS += -DLIGHTMODE_ENABLE
SRC += smoothled.c dmc12.c seq.c lightmode.c

A keyboards/handwired/d48/keymaps/default/keymap.c => keyboards/handwired/d48/keymaps/default/keymap.c +285 -0
@@ 0,0 1,285 @@
#include QMK_KEYBOARD_H
#include <string.h>
#include <stdio.h>
#include "taphold.h"
#include "ds1307.h"

/* Note: don't forget there's some more code in qmk_firmware/users/anderson dir */

#define _MAIN 0
#define _ALPHA 1
#define _BETA 2

enum custom_keycodes {
    KC_MAIN = SAFE_RANGE,
    KC_ALPHA,
    KC_BETA,
    KC_SET_TIME,
};

/* TapHold is my own implementation of the `LT` macro. It's processed in `process_record_user()`. */
#define TAPHOLD_CONFIG_SIZE 3
taphold_t taphold_config[TAPHOLD_CONFIG_SIZE] = {
    {.key=KC_ALPHA, .mode=TAPHOLD_LAYER, .shortAction=KC_ESC, .longAction=_ALPHA},
    {.key=KC_BETA, .mode=TAPHOLD_LAYER, .shortAction=KC_EQL, .longAction=_BETA},
    {.key=KC_RCTRL, .mode=TAPHOLD_MOD, .shortAction=KC_MINS, .longAction=KC_LCTRL},
};
uint16_t taphold_config_size = TAPHOLD_CONFIG_SIZE;
uint32_t taphold_timeout = 90;

/* Colors */
uint32_t layer_colors[3] = {
    [_MAIN] = 0xFF0010,
    [_ALPHA] = 0x4020FF,
    [_BETA] = 0x20FF00,
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    /* Main layer
                                                       │MUTE │           │L_MOD│
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃ TAB ┃  Q  │  W  │  E  │  R  │  T  ┃  Y  │  U  │  I  │  O  │  P  ┃ BSP ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃𝛼/ESC┃  A  │  S  │  D  │  F  │  G  ┃  H  │  J  │  K  │  L  │  ;  ┃ RET ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃SHIFT┃  Z  │  X  │  C  │  V  │  B  ┃  N  │  M  │  ,  │  .  │  /  ┃CTL/-┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃LCTRL┃     │     │ ALT │ GUI │SPACE┃SPACE│ 𝛽/= │  '  │     │     ┃  \  ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_MAIN] = LAYOUT( \
                                                                                KC_MUTE,                   _______, \
        KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
        KC_ALPHA,KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, 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_RCTRL,\
        KC_LCTRL,_______, _______, KC_LALT, KC_LGUI, KC_SPC,  KC_SPC,  KC_BETA, KC_QUOT, _______, _______, KC_BSLS  \
    ),

    /* Alpha layer (𝛼)
                                                       │     │           │     │
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃     ┃PREV │PLAY │NEXT │     │NUMLK┃  -  │ ^^^ │  ^  │ vvv │  ~  ┃ DEL ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │VOL -│VOL +│     │CPSLK┃HOME │ <-- │  v  │ --> │  `  ┃  \  ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │SCRLK┃ END │  =  │  [  │  ]  │  (  ┃  )  ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │     ┃     │     │     │     │     ┃     ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_ALPHA] = LAYOUT( \
                                                                                _______,                   _______, \
        _______, KC_MPRV, KC_MPLY, KC_MNXT, _______, KC_NLCK, KC_MINS, KC_PGUP, KC_UP,   KC_PGDN, KC_TILD, KC_DEL,  \
        _______, _______, KC_VOLD, KC_VOLU, _______, KC_CAPS, KC_HOME, KC_LEFT, KC_DOWN, KC_RIGHT,KC_GRV,  KC_BSLS, \
        _______, _______, _______, _______, _______, KC_SLCK, KC_END,  KC_EQL,  KC_LBRC, KC_RBRC, KC_LPRN ,KC_RPRN, \
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
    ),

    /* Beta layer (𝛽)
                                                       │     │           │     │
       ┏━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┯━━━━━┯━━━━━┯━━━━━┯━━━━━┳━━━━━┓
       ┃ RGB ┃  1  │  2  │  3  │  4  │  5  ┃  6  │  7  │  8  │  9  │  0  ┃ F12 ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃L_MOD┃ F1  │ F2  │ F3  │ F4  │ F5  ┃ F6  │ F7  │ F8  │ F9  │ F10 ┃ F11 ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃RESET│DEBUG│     │     │TIME ┃SLEEP│     │  {  │  }  │PTSCR┃     ┃
       ┣━━━━━╉─────┼─────┼─────┼─────┼─────╂─────┼─────┼─────┼─────┼─────╊━━━━━┫
       ┃     ┃     │     │     │     │     ┃     │     │     │     │     ┃     ┃
       ┗━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┷━━━━━┷━━━━━┷━━━━━┷━━━━━┻━━━━━┛
       */
    [_BETA] = LAYOUT( \
                                                                                _______,                   _______, \
        RGB_TOG, KC_1,    KC_2,    KC_3,    KC_4,    KC_5,     KC_6,    KC_7,   KC_8,    KC_9,    KC_0,    KC_F12,
        _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,    KC_F6,  KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  \
        _______, RESET,   DEBUG,   _______, _______, KC_SET_TIME,KC_SLEP,_______,KC_LCBR,KC_RCBR, KC_PSCR, _______, \
        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
    )
};

static bool alpha_pressed = false;
static bool beta_pressed = false;

static bool ctrl_pressed = false;
static bool alt_pressed = false;
static bool shift_pressed = false;
static bool gui_pressed = false;

void keyboard_post_init_user(void) {
    /* debug_enable = true; */
    /* debug_matrix = true; */
}

void eeconfig_init_user(void) {
    set_unicode_input_mode(UC_LNX);
}

static uint32_t last_update = 0;
static uint8_t hours, minutes, seconds;

void matrix_scan_user(void) {
    uint32_t now = timer_read32();
    if (now - last_update > 500) {
        ds1307_get_time(&hours, &minutes, &seconds);
        last_update = now;
    }
}

static bool is_in_set_time = false;
static char new_time[6];
static uint8_t new_time_index = 0;

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    if (keycode == KC_SET_TIME && record->event.pressed) {
        is_in_set_time = true;
        new_time_index = 0;
    } else if (is_in_set_time) {
        if (!record->event.pressed && keycode >= KC_1 && keycode <= KC_0) {
            new_time[new_time_index++] = (keycode == KC_0) ? 0 : keycode - KC_1 + 1;
            if (new_time_index == 6) {
                is_in_set_time = false;
                ds1307_set_time(
                        (new_time[0]) * 10 + (new_time[1]),
                        (new_time[2]) * 10 + (new_time[3]),
                        (new_time[4]) * 10 + (new_time[5])
                );
                for (int i = 0; i < 6; i++) {
                    tap_code(KC_BSPACE);
                }
            }
        }
    }

    if (keycode == KC_LCTRL || keycode == KC_RCTRL) {
        ctrl_pressed = record->event.pressed;
    } else if (keycode == KC_LALT) {
        alt_pressed = record->event.pressed;
    } else if (keycode == KC_LSFT) {
        shift_pressed = record->event.pressed;
    } else if (keycode == KC_LGUI) {
        gui_pressed = record->event.pressed;
    } else if (keycode == KC_ALPHA) {
        alpha_pressed = record->event.pressed;
    } else if (keycode == KC_BETA) {
        beta_pressed = record->event.pressed;
    }

    if (keycode == RESET) {
        rgblight_setrgb(255, 255, 0);
    }
    if (keycode == KC_LCTRL) {
        /* Some Overlay1_Enable fuckery! */
        (record->event.pressed ? register_code : unregister_code)(KC_LCTRL);
        return false;
    }
    return taphold_process(keycode, record);
}

void encoder_update_user(uint8_t index, bool clockwise) {
    if (index == 0) {
        if (!alpha_pressed) {
            tap_code(clockwise ? KC_VOLD : KC_VOLU);
        } else {
            tap_code(clockwise ? KC_MPRV : KC_MNXT);
        }
    } else if (index == 1) {
        if (!alpha_pressed) {
            tap_code(clockwise ? KC_UP : KC_DOWN);
        } else {
            tap_code(clockwise ? KC_PGUP : KC_PGDN);
        }
    }
}

#ifdef OLED_DRIVER_ENABLE
oled_rotation_t oled_init_user(oled_rotation_t rotation) {
    return OLED_ROTATION_0;
}

void oled_task_user(void) {
    /* Host Keyboard Layer Status */
    uint8_t current_layer = get_highest_layer(layer_state);

    /* Layer */
    static const char PROGMEM icons[4][3][6] = {
        {
            { 0x80, 0x81, 0x82, 0x83, 0x84, 0 },
            { 0xa0, 0xa1, 0xa2, 0xa3, 0xa4, 0 },
            { 0xc0, 0xc1, 0xc2, 0xc3, 0xc4, 0 }
        },
        {
            { 0x85, 0x86, 0x87, 0x88, 0x89, 0 },
            { 0xa5, 0xa6, 0xa7, 0xa8, 0xa9, 0 },
            { 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0 }
        },
        {
            { 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0 },
            { 0xaa, 0xab, 0xac, 0xad, 0xae, 0 },
            { 0xca, 0xcb, 0xcc, 0xcd, 0xce, 0 }
        },
        {
            { 0x8f, 0x90, 0x91, 0x92, 0x93, 0 },
            { 0xaf, 0xb0, 0xb1, 0xb2, 0xb3, 0 },
            { 0xcf, 0xd0, 0xd1, 0xd2, 0xd3, 0 }
        }
    };

    uint8_t icon_index = current_layer == _MAIN ? 3 : current_layer == _ALPHA ? 1 : 2;
    for (int i = 0; i < 3; i++) {
        oled_set_cursor(0, i + 1);
        oled_write_P(icons[icon_index][i], false);
    }

    /* Time */
    oled_set_cursor(6, 0);
    // oled_write_P(PSTR("-D48 Custom-\n"), false);
    char buf[16];
    sprintf(
            buf,
            "%02d:%02d:%02d", hours, minutes, seconds
    );
    oled_write(buf, false);

    /* Modifiers */
    static const char PROGMEM mods[][2] = {
        {0x94, 0x95}, // CTL
        {0x96, 0x97}, // ALT
        {0x98, 0x99}, // GUI
        {0x9a, 0x9b},  // SFT
        /* {0x9c, 0x9d},  // EMPTY */
    };

    char mod_data[13] = "\x9c\x9d\x9c\x9d\x9c\x9d\x9c\x9d \x07\x07\x07\0";
    if (ctrl_pressed) strncpy(mod_data, mods[0], 2);
    if (alt_pressed) strncpy(mod_data + 2, mods[1], 2);
    if (gui_pressed) strncpy(mod_data + 4, mods[2], 2);
    if (shift_pressed) strncpy(mod_data + 6, mods[3], 2);
    led_t led_usb_state = host_keyboard_led_state();
    if (led_usb_state.num_lock) mod_data[9] = 'N';
    if (led_usb_state.caps_lock) mod_data[10] = 'C';
    if (led_usb_state.scroll_lock) mod_data[11] = 'S';

    oled_set_cursor(6, 1);
    oled_write(mod_data, false);

    /* Matrix */
    static const char PROGMEM matrix_chars[] = {
        0xb4, // None
        0xb5, // Upper
        0xb6, // Lower
        0xb7  // Both
    };

    for (uint8_t row = 1; row < MATRIX_ROWS; row += 2) {
        // Skip first row because it's used by the encoders.
        uint16_t bits1 = matrix_get_row(row);
        uint16_t bits2 = matrix_get_row(row + 1);

        for (uint8_t col = 0; col < MATRIX_COLS; col++) {
            uint8_t matrix_char = matrix_chars[((bits1 & (1 << col)) ? 1 : 0) | ((bits2 & (1 << col)) ? 2 : 0)];
            oled_set_cursor(6 + col, 2 + (row - 1) / 2);
            oled_write_char(matrix_char, false);
        }
    }

}
#endif

A keyboards/handwired/d48/rules.mk => keyboards/handwired/d48/rules.mk +22 -0
@@ 0,0 1,22 @@
# MCU name
MCU = STM32F303

# Build Options
#   change yes to no to disable
#
BOOTMAGIC_ENABLE = no   # Virtual DIP switch configuration
MOUSEKEY_ENABLE = no    # Mouse keys
EXTRAKEY_ENABLE = yes   # Audio control and System control
CONSOLE_ENABLE = yes    # Console for debug
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
BACKLIGHT_ENABLE = no   # Enable keyboard backlight functionality
AUDIO_ENABLE = yes
USE_I2C = no
RGBLIGHT_ENABLE = yes
ENCODER_ENABLE = yes
OLED_DRIVER_ENABLE = yes
UNICODE_ENABLE = yes

SRC += ds1307.c taphold.c

A keyboards/handwired/d48/taphold.c => keyboards/handwired/d48/taphold.c +29 -0
@@ 0,0 1,29 @@
#include "taphold.h"

bool taphold_process(uint16_t keycode, keyrecord_t *record) {
    for (int i = 0; i < taphold_config_size; i++) {
        taphold_t *config = &taphold_config[i];
        if (config->key == keycode && record->event.pressed) {
            if (config->mode == TAPHOLD_LAYER) {
                layer_on(config->longAction);
            } else {
                register_code(config->longAction);
            }
            config->time = timer_read32();
            config->keypos = record->event.key;
            return false;
        } else if (KEYEQ(record->event.key, config->keypos) && !record->event.pressed) {
            if (config->mode == TAPHOLD_LAYER) {
                layer_off(config->longAction);
            } else {
                unregister_code(config->longAction);
            }
            if (timer_elapsed32(config->time) < taphold_timeout) {
                tap_code(config->shortAction);
            }
            config->keypos.row = 255;
            return false;
        }
    }
    return true;
}

A keyboards/handwired/d48/taphold.h => keyboards/handwired/d48/taphold.h +25 -0
@@ 0,0 1,25 @@
#include "quantum.h"

typedef enum taphold_mode_t {
    TAPHOLD_LAYER,
    TAPHOLD_MOD
} taphold_mode_t;

typedef struct taphold_t {
    uint16_t key;
    uint32_t time;
    taphold_mode_t mode;
    uint16_t shortAction;
    uint16_t longAction;
    keypos_t keypos;
    // We store key pos to properly release the key
    // even when a different layer is active and the key has a different action now
} taphold_t;

extern taphold_t taphold_config[];
extern uint16_t taphold_config_size;
// Dual keys tap/hold timeout.
// If key is tapped for less than this value, send key in addition to primary action after completing the action.
extern uint32_t taphold_timeout;

bool taphold_process(uint16_t keycode, keyrecord_t *record);

A users/anderson/dmc12.c => users/anderson/dmc12.c +46 -0
@@ 0,0 1,46 @@
#include "dmc12.h"

static uint32_t dmc12_color = 0;
static uint16_t dmc12_timer = 0;
static int8_t dmc12_current = 0;
static uint8_t dmc12_direction = 1;

void dmc12_start(uint32_t color, bool reset) {
    dmc12_color = color;
    if (reset) {
        dmc12_timer = 0;
        dmc12_current = 0;
        dmc12_direction = 1;
    }
}

void dmc12_process(void) {
    if (!dmc12_timer) {
        dmc12_timer = timer_read();
        return;
    }
    float dist_from_center = ((float)abs(dmc12_current - RGBLED_NUM / 2)) / ((float)RGBLED_NUM);
    if (timer_elapsed(dmc12_timer) > dist_from_center * LED_INTERVAL) {
        dmc12_current += dmc12_direction;
        if (dmc12_current == 0 || dmc12_current == RGBLED_NUM - 1) {
            dmc12_direction *= -1;
        }
        dmc12_timer = timer_read();
        for (int i = 0; i < RGBLED_NUM; i++) {
            if (i > dmc12_current - LED_RADIUS && i < dmc12_current + LED_RADIUS) {
                float intensity = (LED_RADIUS - abs(i - dmc12_current)) / ((float)LED_RADIUS);
                if (i != dmc12_current) {
                    intensity /= 4.0;
                }
                rgblight_setrgb_at(
                        ((dmc12_color >> 16) & 0xFF) * intensity,
                        ((dmc12_color >> 8) & 0xFF) * intensity,
                        (dmc12_color & 0xFF) * intensity,
                        i
                );
            } else {
                rgblight_setrgb_at(0, 0, 0, i);
            }
        }
    }
}

A users/anderson/dmc12.h => users/anderson/dmc12.h +9 -0
@@ 0,0 1,9 @@
// Sexy LED animation.

#include "quantum.h"

#define LED_INTERVAL 160
#define LED_RADIUS 6

void dmc12_start(uint32_t color, bool reset);
void dmc12_process(void);

A users/anderson/seq.c => users/anderson/seq.c +38 -0
@@ 0,0 1,38 @@
#include "seq.h"

static char buffer[32];
static uint8_t buffer_size = 0;

void seq_start(void) {
    buffer_size = 0;
    SEND_STRING(":");
}

bool seq_feed(uint16_t keycode) {
    if (keycode == KC_ENTER) {
        for (int i = 0; i < buffer_size + 1; i++) {
            tap_code(KC_BSPACE);
        }
        for (int i = 0; i < seq_config_size; i++) {
            seq_t item = seq_config[i];
            if (strncmp(item.sequence, buffer, buffer_size) == 0) {
                send_unicode_string(item.result);
            }
        }
        buffer_size = 0;
        return false;
    } else if (keycode == KC_BSPACE) {
        if (buffer_size) {
            buffer_size--;
            tap_code(keycode);
        }
        return true;
    } else {
        if (keycode >= KC_A && keycode <= KC_Z) {
            buffer[buffer_size++] = keycode - KC_A + 'a';
            tap_code(keycode);
        }
        return true;
    }
}


A users/anderson/seq.h => users/anderson/seq.h +14 -0
@@ 0,0 1,14 @@
#include "quantum.h"

#include <string.h>

typedef struct seq_t {
    const char *sequence;
    const char *result;
} seq_t;

extern seq_t seq_config[];
extern uint16_t seq_config_size;

void seq_start(void);
bool seq_feed(uint16_t keycode);

A users/anderson/smoothled.c => users/anderson/smoothled.c +34 -0
@@ 0,0 1,34 @@
#include <smoothled.h>

static uint32_t sourceColor = 0x000000;
static uint32_t currentColor = 0x000000;
static uint32_t targetColor = 0x000000;
static int32_t smoothledTimer = -1;

void smoothled_set(uint32_t color) {
    smoothledTimer = timer_read32();
    sourceColor = currentColor;
    targetColor = color;
}

void smoothled_process(void) {
    if (smoothledTimer < 0) {
        return;
    }
    int32_t kb = timer_elapsed32(smoothledTimer);
    int32_t ka = SMOOTH_DURATION - kb;
    if (kb > SMOOTH_DURATION) {
        kb = SMOOTH_DURATION;
        ka = 0;
        smoothledTimer = -1;
    }
    currentColor = 0;
    for (int i = 2; i >= 0; i--) {
        uint32_t shift = i * 8;
        currentColor |= (ka * ((uint32_t)(sourceColor >> shift) & 0xFF) + kb * ((uint32_t)(targetColor >> shift) & 0xFF)) / SMOOTH_DURATION;
        /*currentColor |= ((targetColor >> shift) & 0xFF);*/
        currentColor <<= 8;
    }
    currentColor >>= 8;
    rgblight_setrgb((currentColor >> 16) & 0xFF, (currentColor >> 8) & 0xFF, currentColor & 0xFF);
}

A users/anderson/smoothled.h => users/anderson/smoothled.h +6 -0
@@ 0,0 1,6 @@
#include "quantum.h"

#define SMOOTH_DURATION 160

void smoothled_set(uint32_t color);
void smoothled_process(void);