Adds Hadron Keyboard (#1492)

* adding hadron keymaps

* fix embedded comment

* fixed TWI driver path

* Delete glcdfont.c

* Delete ssd1306.c

* Delete ssd1306.h

* Update readme.md

1 files changed, 408 insertions, 0 deletions

diff --git a/keyboards/hadron/keymaps/default/keymap.c b/keyboards/hadron/keymaps/default/keymap.c
new file mode 100644
index 0000000000..24fa0b27f2
--- /dev/null
+++ b/keyboards/hadron/keymaps/default/keymap.c
@@ -0,0 +1,408 @@
+#include "hadron.h"
+#include "bootloader.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "LUFA/Drivers/Peripheral/TWI.h"
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#ifdef USE_I2C
+#include "i2c.h"
+#endif
+#ifdef SSD1306OLED
+#include "ssd1306.h"
+#endif
+extern keymap_config_t keymap_config;
+
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+
+// 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 _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _MOUSECURSOR 8
+#define _ADJUST 16
+
+enum preonic_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  BACKLIT,
+  RGBLED_TOGGLE,
+  RGBLED_STEP_MODE,
+  RGBLED_INCREASE_HUE,
+  RGBLED_DECREASE_HUE,
+  RGBLED_INCREASE_SAT,
+  RGBLED_DECREASE_SAT,
+  RGBLED_INCREASE_VAL,
+  RGBLED_DECREASE_VAL,
+};
+
+enum macro_keycodes {
+  KC_DEMOMACRO,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+// Custom macros
+#define CTL_ESC     CTL_T(KC_ESC)               // Tap for Esc, hold for Ctrl
+#define CTL_TTAB    CTL_T(KC_TAB)               // Tap for Esc, hold for Ctrl
+#define CTL_ENT     CTL_T(KC_ENT)               // Tap for Enter, hold for Ctrl
+#define SFT_ENT     SFT_T(KC_ENT)               // Tap for Enter, hold for Shift
+// Requires KC_TRNS/_______ for the trigger key in the destination layer
+#define LT_MC(kc)   LT(_MOUSECURSOR, kc)        // L-ayer T-ap M-ouse C-ursor
+#define LT_RAI(kc)  LT(_RAISE, kc)              // L-ayer T-ap to Raise
+#define DEMOMACRO   M(KC_DEMOMACRO)            // Sample for macros
+
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,------+------+------+------+------+------------------------------------------------.
+ * | Esc  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |  F10 |  DEL |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   7  |   8  |   9  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | CAPS |   A  |   S  |   D  |   F  |   G  |   4  |   5  |   6  |   H  |   J  |   K  |   L  | ;/Nav|  '   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   1  |   2  |   3  |   N  |   M  |   ,  |   .  |   /  |Ctl/Et|
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |  `   | Ctrl | Alt  | GUI  |Lower |Space |   0  |   .  |   =  |Space |Raise | Left | Down |  Up  |Right |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( 
+  KC_ESC,   KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,    KC_F9,   KC_F10,  KC_DEL,\
+  KC_TAB,   KC_Q,     KC_W,    KC_E,    KC_R,    KC_T,    KC_P7,   KC_P8,   KC_P9,    KC_Y,    KC_U,    KC_I,   KC_O,    KC_P,     KC_BSPC, \
+  KC_CAPS,  KC_A,     KC_S,    KC_D,    KC_F,    KC_G,    KC_P4,   KC_P5,   KC_P6,    KC_H,    KC_J,    KC_K,   KC_L,LT_MC(KC_SCLN), KC_QUOT, \
+  KC_LSFT,  KC_Z,     KC_X,    KC_C,    KC_V,    KC_B,    KC_P1,   KC_P2,   KC_P3,    KC_N,    KC_M,    KC_COMM,KC_DOT,  KC_SLSH,  CTL_ENT, \
+  KC_GRV,   KC_LCTRL, KC_LGUI, KC_LALT, LOWER,   KC_SPC,  KC_P0,   KC_DOT,  KC_EQL,  KC_SPC,   RAISE,   KC_LEFT,KC_DOWN, KC_UP,    KC_RGHT  \
+),
+
+/* Colemak
+ * ,------+------+------+------+------+------------------------------------------------.
+ * | Esc  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |  F7  |  F8  |  F9  |   0  |   -  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   7  |   8  |   9  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | CAPS |   A  |   R  |   S  |   T  |   D  |   4  |   5  |   6  |   H  |   N  |   E  |   I  |   O  |  '   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   1  |   2  |   3  |   K  |   M  |   ,  |   .  |   /  |Ctl/Et|
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space |   0  |   .  |   =  |Space |Raise | Left | Down |  Up  |Right |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( 
+  KC_ESC,   KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,    KC_F9,   KC_F10, KC_DEL,\
+  KC_TAB,   KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_P7,   KC_P8,   KC_P9,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN,  KC_BSPC, \
+  KC_LCTRL, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_P4,   KC_P5,   KC_P6,    KC_H,    KC_N,    KC_E,    KC_I, LT_MC(KC_O), KC_QUOT, \
+  KC_LSFT,  KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_P1,   KC_P2,   KC_P3,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH,  CTL_ENT, \
+  KC_GRV,   KC_LCTRL, KC_LGUI, KC_LALT, LOWER,  KC_SPC,  KC_P0,   KC_DOT,  KC_EQL,   KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,    KC_RGHT  \
+  ),
+
+/* Dvorak
+ * ,------+------+------+------+------+------------------------------------------------.
+ * |  Esc |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |   -  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   7  |   8  |   9  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   4  |   5  |   6  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   1  |   2  |   3  |   B  |   M  |   W  |   V  |   Z  |Ctl/Et|
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space |   0  |   .  |   =  |Space |Raise | Left | Down |  Up  |Right |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( 
+  KC_ESC,   KC_F1,    KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,    KC_F9,   KC_F10, KC_DEL,\
+  KC_TAB,   KC_QUOT,  KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_P7,   KC_P8,   KC_P9,    KC_F,    KC_G,   KC_C,    KC_R,    KC_L,     KC_BSPC, \
+  KC_LCTL,  KC_A,     KC_O,    KC_E,    KC_U,    KC_I,    KC_P4,   KC_P5,   KC_P6,    KC_D,    KC_H,   KC_T,    KC_N, LT_MC(KC_S), KC_SLSH, \
+  KC_LSFT,  KC_SCLN,  KC_Q,    KC_J,    KC_K,    KC_X,    KC_P1,   KC_P2,   KC_P3,    KC_B,    KC_M,   KC_W,    KC_V,    KC_Z,     CTL_ENT, \
+  KC_GRV,   KC_LCTRL, KC_LGUI, KC_LALT, LOWER,   KC_SPC,  KC_P0,   KC_DOT,  KC_EQL,   KC_SPC,  RAISE,  KC_LEFT, KC_DOWN, KC_UP,    KC_RGHT \
+),
+ 
+/* Lower
+ * ,------+------+------+------+------+------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |      |      |      |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |      |      |      |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |      |  F12 |ISO ~ |ISO | |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( 
+  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_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC, _______, _______, _______, KC_CIRC, KC_AMPR, KC_ASTR,  KC_LPRN, KC_RPRN, KC_DEL, \
+  _______, KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   _______, _______, _______, KC_F6,   KC_UNDS, KC_PLUS,  KC_LBRC, KC_RBRC, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, _______, KC_F12,S(KC_NUHS),S(KC_NUBS),_______,_______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+ 
+/* Raise
+ * ,------+------+------+------+------+------------------------------------------------.
+ * |  Esc |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |   -  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |      |      |      |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |      |      |      |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |      |  F12 |ISO # |ISO / |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( 
+  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_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    _______, _______, _______, KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   _______, _______, _______, KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, _______, KC_F12,  KC_NUHS, KC_NUBS, _______, _______, _______, \
+  _______, _______, _______, _______,  _______, KC_SPC, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY   \
+),
+ 
+/* Mouse Layer (semi-col)
+ * ,------+------+------+------+------+------------------------------------------------.
+ * | ACCL0| ACCL1| ACCL2|      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * |      |      |      |      |      |      |      |      | Home | Wh_Up| WHL_L| M_Up | WHL_R| Macro|      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | End  | Wh_Dn| M_Lft| M_Dn | M_Rt |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      | BTN2 | BTN3 | BTN4 | BTN5 |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      | BTN1 |      |      |      | BTN1 |      |      |      |      |      |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+ 
+[_MOUSECURSOR] = KEYMAP( 
+  KC_ACL0, KC_ACL1, KC_ACL2, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGUP, KC_WH_L, KC_MS_U, KC_WH_R,DEMOMACRO,_______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_END , KC_PGDN, KC_MS_L, KC_MS_D, KC_MS_R, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_BTN2, KC_BTN3, KC_BTN4, KC_BTN5, _______, _______, \
+  _______, _______, _______, _______, _______, KC_BTN1, _______, _______, _______, KC_BTN1, _______, _______, _______, _______, _______  \
+),
+ 
+/* Adjust (Lower + Raise)
+ * ,------+------+------+------+------+------------------------------------------------.
+ * |  Esc |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  |   -  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+--------------------.
+ * | Reset|RGB TG|RGB ST|RGBH -|RGBH +|RGBS -|RGBS +|RGBV -|RGBV +|      |      |      |      |      |  Del |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm|      |      |      |AGswap|Qwerty|Colemk|      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |Voice-|Voice+|Mus on|Musoff|      |      |      |      |      |      |      | BL + |BL ST |BL TG |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( 
+  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12, \
+  RESET,   RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, _______, _______, KC_DEL, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, _______, _______, _______, AG_SWAP, QWERTY,  COLEMAK, _______,  _______,  _______, \
+  _______, MUV_DE,  MUV_IN,  MU_ON,   MU_OFF,  MI_ON,   MI_OFF, _______, _______, _______,  _______, BL_DEC,  BL_INC,  BL_STEP, BL_TOGG, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______\
+)
+ 
+
+
+};
+
+
+#ifdef AUDIO_ENABLE
+
+float tone_startup[][2]    = SONG(STARTUP_SOUND);
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
+float tone_goodbye[][2]    = SONG(GOODBYE_SOUND);
+#endif
+
+// define variables for reactive RGB
+bool RGB_INIT = false;
+bool TOG_STATUS = false;
+int RGB_current_mode;
+
+
+
+void persistant_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
+  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
+    rgblight_mode(RGB_current_mode);
+    layer_on(layer3);
+  } else {
+    layer_off(layer3);
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+        #endif
+        persistant_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+        #endif
+        persistant_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+          //not sure how to have keyboard check mode and set it to a variable, so my work around
+          //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (RGB_INIT) {} else {
+          RGB_current_mode = rgblight_config.mode;
+          RGB_INIT = true;
+        }
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          rgblight_mode(16);
+        }
+        layer_on(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        rgblight_mode(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
+        TOG_STATUS = false;
+        layer_off(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        //not sure how to have keyboard check mode and set it to a variable, so my work around
+        //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (RGB_INIT) {} else {
+          RGB_current_mode = rgblight_config.mode;
+          RGB_INIT = true;
+        }
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          rgblight_mode(15);
+        }
+        layer_on(_RAISE);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        rgblight_mode(RGB_current_mode);  // revert RGB to initial mode prior to RGB mode change
+        layer_off(_RAISE);
+        TOG_STATUS = false;
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case BACKLIT:
+      if (record->event.pressed) {
+        register_code(KC_RSFT);
+        #ifdef BACKLIGHT_ENABLE
+          backlight_step();
+        #endif
+      } else {
+        unregister_code(KC_RSFT);
+      }
+      return false;
+      break;
+    case RGB_MOD:
+      //led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
+      if (record->event.pressed) {
+        rgblight_mode(RGB_current_mode);
+        rgblight_step();
+        RGB_current_mode = rgblight_config.mode;
+      }
+      return false;
+      break;
+  }
+  return true;
+}
+
+void matrix_init_user(void) {
+  #ifdef USE_I2C
+    i2c_master_init();
+  #ifdef SSD1306OLED
+  // calls code for the SSD1306 OLED
+        _delay_ms(400);
+        TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
+        iota_gfx_init();   // turns on the display
+  #endif
+  #endif
+    #ifdef AUDIO_ENABLE
+        startup_user();
+    #endif
+}
+
+void matrix_scan_user(void) {
+    #ifdef SSD1306OLED
+     iota_gfx_task();  // this is what updates the display continuously
+    #endif
+}
+
+#ifdef AUDIO_ENABLE
+
+void startup_user()
+{
+    _delay_ms(20); // gets rid of tick
+    PLAY_NOTE_ARRAY(tone_startup, false, 0);
+}
+
+void shutdown_user()
+{cc
+    PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+    _delay_ms(150);
+    stop_all_notes();
+}
+
+void music_on_user(void)
+{
+    music_scale_user();
+}
+
+void music_scale_user(void)
+{
+    PLAY_NOTE_ARRAY(music_scale, false, 0);
+}
+
+#endif
+
+/*
+ * Macro definition
+ */
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    if (!eeconfig_is_enabled()) {
+      eeconfig_init();
+    }
+
+    switch (id) {  
+      case KC_DEMOMACRO:
+        if (record->event.pressed){
+          return MACRO (I(1), T(H),T(E),T(L), T(L), T(O), T(SPACE), T(W), T(O), T(R), T(L), T(D),  END);
+        }  
+    }
+
+    return MACRO_NONE;
+}