qmk_firmware/keyboards/tada68/keymaps/cheese/keymap.c

#include QMK_KEYBOARD_H

// Each layer gets a name for readability, which is then used in the keymap matrix below.
// The underscores don't mean anything - you can have a layer called STUFF or any other name.
// Layer names don't all need to be of the same length, obviously, and you can also skip them
// entirely and just use numbers.
#define _BL 0
#define _FL 1
#define _CL 2
#define _AL 3

enum custom_keycodes {
    SPX4 = SAFE_RANGE
};

bool process_record_user(uint16_t keycode, keyrecord_t *record) {
    if (record->event.pressed) {
        switch(keycode) {
            case SPX4:
                SEND_STRING("    ");
                return false;
        }
    }
    return true;
};

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  /* Keymap _BL: (Base Layer) Default Layer
   * ,----------------------------------------------------------------.
   * |Esc | 1|  2|  3|  4|  5|  6|  7|  8|  9|  0|  -|  =|Backsp |~ ` |
   * |----------------------------------------------------------------|
   * |Tab  |  Q|  W|  E|  R|  T|  Y|  U|  I|  O|  P|  [|  ]|  \  |PgUp|
   * |----------------------------------------------------------------|
   * |CAPS   |  A|  S|  D|  F|  G|  H|  J|  K|  L|  ;|  '|Return |PgDn|
   * |----------------------------------------------------------------|
   * |Shift   |  Z|  X|  C|  V|  B|  N|  M|  ,|  .|  /|Shift | Up|Del |
   * |----------------------------------------------------------------|
   * |Ctrl|Win |Win |        Space          |Win| FN|Ctrl|Lef|Dow|Rig |
   * `----------------------------------------------------------------'
   */
[_BL] = LAYOUT_ansi(
  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_BSPC,
  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_PGUP,
  MO(_CL),  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_PGDN,
  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_DEL,
  KC_LCTL, KC_LALT,LM(_AL,0x08),                KC_SPC,                       LM(_AL,0x18),MO(_FL),KC_RCTL, KC_LEFT,KC_DOWN,KC_RGHT),

  /* Keymap _FL: Function Layer
   * ,----------------------------------------------------------------.
   * |   | F1|F2 |F3 |F4 |F5 |F6 |F7 |F8 |F9 |F10|F11|F12|Del    |` ~ |
   * |----------------------------------------------------------------|
   * |     |   |Up |   |   |   |   |   |   |   |   |   |   |     |Hme |
   * |----------------------------------------------------------------|
   * |      |<- |Dn | ->|   |   |   |   |   |   |   |   |        |End |
   * |----------------------------------------------------------------|
   * |        |   |   |Bl-|BL |BL+|   |MUT|VU-|VU+|   |      |   |    |
   * |----------------------------------------------------------------|
   * |    |    |    |                       |   |   |    |   |   |    |
   * `----------------------------------------------------------------'
   */
[_FL] = LAYOUT_ansi(
  _______, 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_DEL, KC_GRV,
  SPX4,_______, KC_UP,_______,_______, _______,_______,_______,_______,_______,_______,_______,_______, _______,KC_HOME,
  _______,KC_LEFT,KC_DOWN,KC_RIGHT,_______,_______,_______,_______,_______,_______,_______,_______,        _______,KC_END,
  _______,_______,_______,BL_DOWN,BL_TOGG,BL_UP,  _______,KC_MUTE,KC_VOLD,KC_VOLU,_______,_______, _______, _______,
  _______,_______,_______,                 _______,               _______,_______,_______,_______,_______, _______),

  /* Keymap _CL: Caps Layer
   * ,----------------------------------------------------------------.
   * |   | F1|F2 |F3 |F4 |F5 |F6 |F7 |F8 |F9 |F10|F11|F12|Del    |` ~ |
   * |----------------------------------------------------------------|
   * |     |   |Up |   |   |   |   |   |   |   |   |   |   |     |Hme |
   * |----------------------------------------------------------------|
   * |      |<- |Dn | ->|   |   |   |   |   |   |   |   |        |End |
   * |----------------------------------------------------------------|
   * |        |   |   |Bl-|BL |BL+|   |MUT|VU-|VU+|   |   McL|MsU|McR |
   * |----------------------------------------------------------------|
   * |    |    |    |                       |   |   |    |MsL|MsD|MsR |
   * `----------------------------------------------------------------'
   */
[_CL] = LAYOUT_ansi(
  _______, 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_DEL, KC_GRV ,
  _______,_______, KC_UP,_______,_______, _______,_______,_______,_______,_______,_______,_______,_______, _______,KC_HOME,
  _______,KC_LEFT,KC_DOWN,KC_RIGHT,_______,_______,_______,_______,_______,_______,_______,_______,        _______,KC_END,
  _______,_______,_______,BL_DOWN,BL_TOGG,BL_UP,  _______,KC_MUTE,KC_VOLD,KC_VOLU,_______,KC_BTN1, KC_MS_U, KC_BTN2,
  _______,_______,_______,                 _______,               _______,_______,_______,KC_MS_L,KC_MS_D, KC_MS_R),

  /* Keymap _AL: ALT Layer
   * ,----------------------------------------------------------------.
   * |` ~|   |   |   |   |   |   |   |   |   |   |   |   |       | ` ~|
   * |----------------------------------------------------------------|
   * |     |   |   |   |   |   |   |   |   |   |   |   |   |     |    |
   * |----------------------------------------------------------------|
   * |      |   |   |   |   |   |   |   |   |   |   |   |        |    |
   * |----------------------------------------------------------------|
   * |        |   |   |   |   |   |   |   |   |   |   |      |   |    |
   * |----------------------------------------------------------------|
   * |    |    |    |                       |   |   |    |   |   |    |
   * `----------------------------------------------------------------'
   */
[_AL] = LAYOUT_ansi(
  KC_GRV, _______ ,_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_GRV ,
  _______,_______, _______, _______,_______, _______,_______,_______,_______,_______,_______,_______,_______, _______,_______,
  _______,_______, _______, _______,_______,_______,_______,_______,_______,_______,_______,_______,        _______,_______,
  _______,_______,_______, _______, _______, _______, _______, _______, _______, _______,_______, _______, _______,  _______,
  _______,_______,_______,                 _______,               _______,_______,_______, _______, _______,  _______),
};