qmk_firmware/keyboards/spaceman/pancake/rev1/keymaps/default/keymap.c

#include QMK_KEYBOARD_H
enum layers {
  _DEFAULT,
  _LOWER,
  _RAISE,
  _FN
};

#define LOWER MO(_LOWER)
#define RAISE MO(_RAISE)
#define FN MO(_FN)

const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {

/* Default
 * ,-----------------------------------------------------------------------------------.
 * | Esc  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |  Tab |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   "  |  ;   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |  Up  |Enter |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * | Ctrl | Alt  | GUI  |  FN  | Lower|    Space    |Raise |   /  | Left | Down |Right |
 * `-----------------------------------------------------------------------------------'
 */
[_DEFAULT] = LAYOUT_ortho_4x12(
    KC_ESC,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,     KC_BSPC,
    KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_QUOT, KC_SCLN,
    KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_UP,    KC_ENT ,
    KC_LCTL, KC_LALT, KC_LGUI, FN,      LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_SLSH, KC_LEFT, KC_DOWN,  KC_RGHT
),


/* Lower
 * ,-----------------------------------------------------------------------------------.
 * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |   _  |   +  |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |   {  |   }  | Vol+ |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |             |      |   ?  |      | Vol- |      |
 * `-----------------------------------------------------------------------------------'
 */
[_LOWER] = LAYOUT_ortho_4x12(
    KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_UNDS, KC_PLUS, _______, KC_PIPE,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_LCBR, KC_RCBR, KC_VOLU, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_QUES, _______, KC_VOLD, _______
),

/* Raise
 * ,-----------------------------------------------------------------------------------.
 * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |  -   |   =   |     |  \   |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |   [  |   ]  | Vol- |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      |      |      |             |      |      |      | Vol+ |      |
 * `-----------------------------------------------------------------------------------'
 */
[_RAISE] = LAYOUT_ortho_4x12(
    KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_MINS, KC_EQL,  _______, KC_BSLS,
    _______, _______, _______, _______, _______, _______, _______, _______, KC_LBRC, KC_RBRC, KC_VOLU, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_VOLD, _______ 
),
 
 /* FN
 * ,-----------------------------------------------------------------------------------.
 * | Reset| F1   |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |      |
 * |------+------+------+------+------+-------------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |      |  F11 |  F12 |      |
 * |------+------+------+------+------+------|------+------+------+------+------+------|
 * |      |      |      |      |      |      |      |      |      |      |      |      |
 * |------+------+------+------+------+------+------+------+------+------+------+------|
 * |      |      |      | TRNS |      |             |      |      |      |      |      |
 * `-----------------------------------------------------------------------------------'
 */
[_FN] = LAYOUT_ortho_4x12(
    QK_BOOT,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_F11,  KC_F12,  _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
),


};