Setup new keyboard definition for tutte_coxeter_36e
❯ qmk new-keyboard -kbtutte_coxeter_c36e -n "Peter J. A. Cock" -u peterjc -t RP2040 -l split_3x5_3 Ψ Generating a new QMK keyboard directory Ψ Created a new keyboard called tutte_coxeter_36e. Ψ Build Command: qmk compile -kb tutte_coxeter_36e -km default. Ψ Project Location: /Users/peterjc/repositories/qmk_firmware/keyboards/tutte_coxeter_36e. Ψ Now update the config files to match the hardware! ❯ mv ~/repositories/qmk_firmware/keyboardstutte_coxeter_36e ~/repositories/qmk_userspace/keyboards Note it did not want to accept hyphens, so used underscores. Then define sparse 13x13 scanning matrix of 36 edge / 26 vertice graph, using the RP2040 GPIO pin names. i.e. The partial Tutte-Coxeter graph, using RP2040 GPIO pin names.
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Peter J. A. Cock
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96
keyboards/tutte_coxeter_36e/keyboard.json
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96
keyboards/tutte_coxeter_36e/keyboard.json
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{
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"manufacturer": "Peter J. A. Cock",
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"keyboard_name": "tutte_coxeter_36e",
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"maintainer": "peterjc",
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"bootloader": "rp2040",
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"diode_direction": "COL2ROW",
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"features": {
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"bootmagic": true,
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"extrakey": true,
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"mousekey": true,
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"nkro": true
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},
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"matrix_pins": {
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"cols": [
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"GP11",
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"GP10",
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"GP3",
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"GP4",
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"GP7",
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"GP26",
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"GP27",
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"GP28",
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"GP15",
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"GP21",
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"GP19",
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"GP20",
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"GP16"
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],
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"rows": [
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"GP12",
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"GP8",
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"GP9",
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"GP1",
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"GP6",
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"GP1",
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"GP6",
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"GP2",
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"GP22",
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"GP0",
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"GP13",
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"GP14",
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"GP18",
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"GP17",
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"GP5"
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]
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},
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"processor": "RP2040",
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"url": "",
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"usb": {
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"device_version": "1.0.0",
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"pid": "0x0000",
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"vid": "0xFEED"
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},
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"layouts": {
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"LAYOUT_split_3x5_3": {
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"layout": [
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{"matrix": [1, 0], "label": "q", "x": 0, "y": 0.25},
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{"matrix": [5, 1], "label": "w", "x": 1, "y": 0.125},
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{"matrix": [7, 2], "label": "e", "x": 2, "y": 0},
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{"matrix": [3, 3], "label": "r", "x": 3, "y": 0.125},
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{"matrix": [5, 4], "label": "t", "x": 4, "y": 0.25},
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{"matrix": [5, 5], "label": "y", "x": 7, "y": 0.25},
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{"matrix": [7, 6], "label": "u", "x": 8, "y": 0.125},
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{"matrix": [7, 7], "label": "i", "x": 9, "y": 0},
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{"matrix": [3, 9], "label": "o", "x": 10, "y": 0.125},
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{"matrix": [12, 11], "label": "p", "x": 11, "y": 0.25},
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{"matrix": [9, 0], "label": "a", "x": 0, "y": 1.25},
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{"matrix": [1, 1], "label": "s", "x": 1, "y": 1.125},
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{"matrix": [3, 2], "label": "d", "x": 2, "y": 1},
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{"matrix": [12, 3], "label": "f", "x": 3, "y": 1.125},
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{"matrix": [4, 4], "label": "g", "x": 4, "y": 1.25},
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{"matrix": [6, 5], "label": "h", "x": 7, "y": 1.25},
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{"matrix": [0, 6], "label": "j", "x": 8, "y": 1.125},
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{"matrix": [8, 7], "label": "k", "x": 9, "y": 1},
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{"matrix": [9, 9], "label": "l", "x": 10, "y": 1.125},
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{"matrix": [1, 11], "label": ";", "x": 11, "y": 1.25},
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{"matrix": [0, 0], "label": "z", "x": 0, "y": 2.25},
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{"matrix": [2, 1], "label": "x", "x": 1, "y": 2.125},
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{"matrix": [2, 2], "label": "c", "x": 2, "y": 2},
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{"matrix": [4, 3], "label": "v", "x": 3, "y": 2.125},
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{"matrix": [8, 4], "label": "b", "x": 4, "y": 2.25},
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{"matrix": [10, 5], "label": "n", "x": 7, "y": 2.25},
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{"matrix": [6, 6], "label": "m", "x": 8, "y": 2.125},
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{"matrix": [11, 7], "label": ",", "x": 9, "y": 2},
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{"matrix": [10, 9], "label": ".", "x": 10, "y": 2.125},
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{"matrix": [11, 11], "label": "/", "x": 11, "y": 2.25},
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{"matrix": [9, 8], "label": "L1", "x": 2.5, "y": 3.25},
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{"matrix": [8, 8], "label": "L2", "x": 3.5, "y": 3.5},
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{"matrix": [12, 12], "label": "L3", "x": 4.5, "y": 3.75},
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{"matrix": [6, 12], "label": "R3", "x": 6.5, "y": 3.75},
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{"matrix": [10, 10], "label": "R2", "x": 7.5, "y": 3.5},
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{"matrix": [11, 10], "label": "R1", "x": 8.5, "y": 3.25}
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]
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}
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}
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}
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27
keyboards/tutte_coxeter_36e/keymaps/default/keymap.c
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keyboards/tutte_coxeter_36e/keymaps/default/keymap.c
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// Copyright 2023 QMK
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// SPDX-License-Identifier: GPL-2.0-or-later
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#include QMK_KEYBOARD_H
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const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
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/*
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* ┌───┬───┬───┬───┬───┐ ┌───┬───┬───┬───┬───┐
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* │ Q │ W │ E │ R │ T │ │ Y │ U │ I │ O │ P │
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* ├───┼───┼───┼───┼───┤ ├───┼───┼───┼───┼───┤
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* │ A │ S │ D │ F │ G │ │ H │ J │ K │ L │ ; │
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* ├───┼───┼───┼───┼───┤ ├───┼───┼───┼───┼───┤
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* │ Z │ X │ C │ V │ B │ │ N │ M │ , │ . │ / │
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* └───┴───┴───┴───┴───┘ └───┴───┴───┴───┴───┘
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* ┌───┐ ┌───┐
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* │GUI├───┐ ┌───┤Alt│
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* └───┤Bsp├───┐ ┌───┤Ent├───┘
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* └───┤ │ │ ├───┘
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* └───┘ └───┘
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*/
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[0] = LAYOUT_split_3x5_3(
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KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P,
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KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN,
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KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH,
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KC_LGUI, KC_BSPC, KC_SPC, KC_SPC, KC_ENT, KC_RALT
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)
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};
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32
keyboards/tutte_coxeter_36e/readme.md
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keyboards/tutte_coxeter_36e/readme.md
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# Tutte Coxeter 36e
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This is firmware for an PR2040 monoblock 36 key design (three rows of five, and three thumb keys, for each hand).
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The first physical PCB for this is designed to fit in the [Gamma Omega keyboard](https://github.com/unspecworks/gamma-omega) case,
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and use the same Raspberry Pi Pico based microcontroller board.
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This is a diode-free design using a sparse 13 by 13 scanning matrix designed from a partial Tutte-Coxeter graph
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(using only 26 vertices or GPIO pins with 36 edges or keys).
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* Keyboard Maintainer: [Peter J. A. Cock](https://github.com/peterjc)
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* Hardware Supported: Tutte Coxeter 36e (single PCB) with Raspberry Pi Pico
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* Hardware Availability: https://github.com/peterjc/gamma-omega
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Make example for this keyboard (after setting up your build environment):
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make tutte_coxeter_36e:default
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Flashing example for this keyboard:
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make tutte_coxetter_36e:default:flash
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See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
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## Bootloader
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Enter the bootloader in 3 ways:
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* **Bootmagic reset**: Hold down the key at (0,0) in the matrix (bottom left key, Qwerty `z`) and plug in the keyboard
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* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
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* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
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