qmk_firmware/keyboards/lets_split/keymaps/default/keymap.c

#include "lets_split.h"
#include "action_layer.h"

#define BASE 0

enum preonic_keycodes {
  KC_IDK = SAFE_RANGE,
  PM_RESET
};

// Fillers to make layering more clear
#define _______ KC_TRNS
#define XXXXXXX KC_NO

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

[BASE] = KEYMAP(
  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_ESC,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,        KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,        KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT, \
  KC_IDK,  KC_LCTL, KC_LALT, KC_LGUI, PM_RESET,KC_SPC,      KC_SPC,  PM_RESET,KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
)

};

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