From 4c71b329a228738f5c39eb07ed806ce14fbe97af Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Mon, 26 Jun 2017 22:33:14 +0200
Subject: [PATCH 01/15] clone smt layout

---
 keyboards/lets_split/keymaps/fabian/config.h  |  34 +++
 keyboards/lets_split/keymaps/fabian/keymap.c  | 219 ++++++++++++++++++
 keyboards/lets_split/keymaps/fabian/readme.md |  88 +++++++
 3 files changed, 341 insertions(+)
 create mode 100644 keyboards/lets_split/keymaps/fabian/config.h
 create mode 100644 keyboards/lets_split/keymaps/fabian/keymap.c
 create mode 100644 keyboards/lets_split/keymaps/fabian/readme.md

diff --git a/keyboards/lets_split/keymaps/fabian/config.h b/keyboards/lets_split/keymaps/fabian/config.h
new file mode 100644
index 0000000000..ba271d1ac6
--- /dev/null
+++ b/keyboards/lets_split/keymaps/fabian/config.h
@@ -0,0 +1,34 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_rev1
+    #include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+    #include "../../rev2/config.h"
+#endif
+#ifdef SUBPROJECT_rev2fliphalf
+	#include "../../rev2fliphalf/config.h"
+#endif
diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
new file mode 100644
index 0000000000..18d409f089
--- /dev/null
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -0,0 +1,219 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_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 _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// 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 SFT_ENT     SFT_T(KC_ENT)               // Tap for Enter, hold for Shift
+#define HPR_TAB     ALL_T(KC_TAB)               // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+#define MEH_GRV     MEH_T(KC_GRV)               // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  CTL_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, SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Colemak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Dvorak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT, \
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+),
+
+/* Lower
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+  ALL_T(KC_0),   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+  CTL_T(KC_DLR), KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_4,    KC_5,    KC_6,    _______, _______, \
+  _______,       KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_1,    KC_2,    KC_3,    _______, _______, \
+  _______,       _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+/* Raise
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  ALL_T(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_UNDS, KC_QUES, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______,        _______, _______, _______, _______, _______, KC_MINS, KC_SLSH, KC_EQL,  KC_LBRC, KC_RBRC, SFT_T(KC_BSLS), \
+  _______,        _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      |      |      |      |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      |      |      |      |      |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET, \
+  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+)
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+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
+        persistent_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
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/lets_split/keymaps/fabian/readme.md b/keyboards/lets_split/keymaps/fabian/readme.md
new file mode 100644
index 0000000000..20bc662f0a
--- /dev/null
+++ b/keyboards/lets_split/keymaps/fabian/readme.md
@@ -0,0 +1,88 @@
+# smt's Let's Split keymap
+
+This keymap is ported from my Planck keymap.
+
+
+## Qwerty
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Colemak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Dvorak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Lower
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Raise
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Adjust (Lower + Raise)
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+|      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      |      |      |      |      |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+|      |      |      |      |      |      | |      |      |      |      |      |      |
+`-----------------------------------------' `-----------------------------------------'
+```

From 786eb4e73d92cbca81e7893095f9c689f4577d91 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Tue, 27 Jun 2017 09:14:04 +0200
Subject: [PATCH 02/15] my layout

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 63 ++++++++++----------
 1 file changed, 32 insertions(+), 31 deletions(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index 18d409f089..1793bcc05c 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -31,6 +31,7 @@ enum custom_keycodes {
 // Custom macros
 #define CTL_ESC     CTL_T(KC_ESC)               // Tap for Esc, hold for Ctrl
 #define SFT_ENT     SFT_T(KC_ENT)               // Tap for Enter, hold for Shift
+#define SFT_BSP     SFT_T(KC_BSPC)              // Tap for Backspace, hold for Shift
 #define HPR_TAB     ALL_T(KC_TAB)               // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
 #define MEH_GRV     MEH_T(KC_GRV)               // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
 
@@ -44,14 +45,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_QWERTY] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
   CTL_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, SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL,  _______ 
 ),
 
 /* Colemak
@@ -62,14 +63,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_COLEMAK] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
   CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
   KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL,   _______
 ),
 
 /* Dvorak
@@ -80,52 +81,52 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
+ * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_DVORAK] = KEYMAP( \
   HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
   CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
   KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_SPC,  RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT
+  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, _______
 ),
 
 /* Lower
  * ,-----------------------------------------. ,-----------------------------------------.
- * |   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Bksp |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   _  |   +  |   {  |   }  |  |   |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
- * `-----------------------------------------' `-----------------------------------------'
- */
-[_LOWER] = KEYMAP( \
-  ALL_T(KC_0),   KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
-  CTL_T(KC_DLR), KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_4,    KC_5,    KC_6,    _______, _______, \
-  _______,       KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_1,    KC_2,    KC_3,    _______, _______, \
-  _______,       _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
-),
-
-/* Raise
- * ,-----------------------------------------. ,-----------------------------------------.
- * |   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
+ * |      |  F7  |  F8  |  F9  | F10  | F11  | | F12  | Left | Down |  Up  |Right |      |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * |      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
  * `-----------------------------------------' `-----------------------------------------'
  */
-[_RAISE] = KEYMAP( \
-  ALL_T(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_UNDS, KC_QUES, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
-  _______,        _______, _______, _______, _______, _______, KC_MINS, KC_SLSH, KC_EQL,  KC_LBRC, KC_RBRC, SFT_T(KC_BSLS), \
+[_LOWER] = KEYMAP( \
+  ALL_T(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_DEL,         KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______,        KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, \
   _______,        _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
 ),
 
+/* Raise
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  |      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 | Left | Down |  Up  | Right|      |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * |      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+  ALL_T(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_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LCBR, KC_RCBR, KC_BSLS, \
+  _______,          KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, \
+  _______,          _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
 /* Adjust (Lower + Raise)
  * ,-----------------------------------------. ,-----------------------------------------.
  * |      | Reset|      |      |      |      | |      |      |      |      |      | Reset|

From 7d0a471051551c3ef9d8a60dbf4bc5b1b2d70cea Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Tue, 27 Jun 2017 09:18:05 +0200
Subject: [PATCH 03/15] removed wrong readme

---
 keyboards/lets_split/keymaps/fabian/readme.md | 88 -------------------
 1 file changed, 88 deletions(-)
 delete mode 100644 keyboards/lets_split/keymaps/fabian/readme.md

diff --git a/keyboards/lets_split/keymaps/fabian/readme.md b/keyboards/lets_split/keymaps/fabian/readme.md
deleted file mode 100644
index 20bc662f0a..0000000000
--- a/keyboards/lets_split/keymaps/fabian/readme.md
+++ /dev/null
@@ -1,88 +0,0 @@
-# smt's Let's Split keymap
-
-This keymap is ported from my Planck keymap.
-
-
-## Qwerty
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-| Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
-`-----------------------------------------' `-----------------------------------------'
-```
-
-## Colemak
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-| Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
-`-----------------------------------------' `-----------------------------------------'
-```
-
-## Dvorak
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-| Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-| Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|   `  | Ctrl | Alt  | GUI  |Lower |Space | |Space |Raise | Left | Down |  Up  |Right |
-`-----------------------------------------' `-----------------------------------------'
-```
-
-## Lower
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-|   0  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  | Del  |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|   $  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   4  |   5  |   6  |      |      |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 |   1  |   2  |   3  |      |      |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
-`-----------------------------------------' `-----------------------------------------'
-```
-
-## Raise
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-|   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Del  |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |   _  |   ?  |   +  |   {  |   }  |  |   |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |   -  |   /  |   =  |   [  |   ]  |  \   |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
-`-----------------------------------------' `-----------------------------------------'
-```
-
-## Adjust (Lower + Raise)
-
-```
-,-----------------------------------------. ,-----------------------------------------.
-|      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |      |      |      |      |      |      |
-|------+------+------+------+------+------| |------+------+------+------+------+------|
-|      |      |      |      |      |      | |      |      |      |      |      |      |
-`-----------------------------------------' `-----------------------------------------'
-```

From 9aa748df2a65517b7216ea5bd10aa64bfbf62c2a Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Tue, 27 Jun 2017 10:36:00 +0200
Subject: [PATCH 04/15] my layout

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index 1793bcc05c..d448bb04b2 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -45,14 +45,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
+ * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_QWERTY] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
   CTL_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, SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL,  _______ 
+  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
 ),
 
 /* Colemak
@@ -63,14 +63,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
+ * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_COLEMAK] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
   CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
   KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL,   _______
+  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
 ),
 
 /* Dvorak
@@ -81,14 +81,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
  * | Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
  * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |   `  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl |      |
+ * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
  * `-----------------------------------------' `-----------------------------------------'
  */
 [_DVORAK] = KEYMAP( \
   HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
   CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
   KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT, \
-  MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, _______
+  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
 ),
 
 /* Lower

From 99b6e918eab31d4f53cabc04a995da945335ac7f Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Tue, 27 Jun 2017 16:20:17 +0200
Subject: [PATCH 05/15] fixed brackets

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index d448bb04b2..b3e19aaea5 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -122,7 +122,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  */
 [_RAISE] = KEYMAP( \
   ALL_T(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_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LCBR, KC_RCBR, KC_BSLS, \
+  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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, \
   _______,          _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
 ),

From c7ea65c6d3c0fe50e7c77831c68b435d440be73d Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 11:09:29 +0200
Subject: [PATCH 06/15] default based customizations

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 159 ++++++++++---------
 1 file changed, 80 insertions(+), 79 deletions(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index b3e19aaea5..c15c9724eb 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -28,123 +28,124 @@ enum custom_keycodes {
 #define _______ KC_TRNS
 #define XXXXXXX KC_NO
 
-// Custom macros
-#define CTL_ESC     CTL_T(KC_ESC)               // Tap for Esc, hold for Ctrl
-#define SFT_ENT     SFT_T(KC_ENT)               // Tap for Enter, hold for Shift
-#define SFT_BSP     SFT_T(KC_BSPC)              // Tap for Backspace, hold for Shift
-#define HPR_TAB     ALL_T(KC_TAB)               // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
-#define MEH_GRV     MEH_T(KC_GRV)               // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+// Custom
+#define CTL_ESC CTL_T(KC_ESC)  // Tap for Escape, hold for Control
+#define SFT_ENT SFT_T(KC_ENT)  // Tap for Enter, hold for Shift
+#define SFT_BSP SFT_T(KC_BSPC) // Tap for Backspace, hold for Shift
+#define HPR_TAB ALL_T(KC_TAB)  // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+// #define MEH_GRV MEH_T(KC_GRV)  // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
 
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 /* Qwerty
- * ,-----------------------------------------. ,-----------------------------------------.
- * | Tab  |   Q  |   W  |   E  |   R  |   T  | |   Y  |   U  |   I  |   O  |   P  | Bksp |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Esc  |   A  |   S  |   D  |   F  |   G  | |   H  |   J  |   K  |   L  |   ;  |  "   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Shift|   Z  |   X  |   C  |   V  |   B  | |   N  |   M  |   ,  |   .  |   /  |Enter |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
  */
 [_QWERTY] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
   CTL_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, SFT_ENT, \
-  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 
 /* Colemak
- * ,-----------------------------------------. ,-----------------------------------------.
- * | Tab  |   Q  |   W  |   F  |   P  |   G  | |   J  |   L  |   U  |   Y  |   ;  | Bksp |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Esc  |   A  |   R  |   S  |   T  |   D  | |   H  |   N  |   E  |   I  |   O  |  "   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Shift|   Z  |   X  |   C  |   V  |   B  | |   K  |   M  |   ,  |   .  |   /  |Enter |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
  */
 [_COLEMAK] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
   CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
-  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT, \
-  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
+  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 
 /* Dvorak
- * ,-----------------------------------------. ,-----------------------------------------.
- * | Tab  |   "  |   ,  |   .  |   P  |   Y  | |   F  |   G  |   C  |   R  |   L  | Bksp |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Esc  |   A  |   O  |   E  |   U  |   I  | |   D  |   H  |   T  |   N  |   S  |  -   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Shift|   ;  |   Q  |   J  |   K  |   X  | |   B  |   M  |   W  |   V  |   Z  |Enter |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | GUI  | Ctrl | Alt  | GUI  |Lower |Space | | Bksp |Raise | GUI  |AltGr | Ctrl | GUI  |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
  */
 [_DVORAK] = KEYMAP( \
   HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
-  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_MINS, \
-  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT, \
-  KC_LGUI, KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KC_RGUI 
+  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 
 /* Lower
- * ,-----------------------------------------. ,-----------------------------------------.
- * |   ~  |   !  |   @  |   #  |   $  |   %  | |   ^  |   &  |   *  |   (  |   )  | Bksp |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   _  |   +  |   {  |   }  |  |   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |  F7  |  F8  |  F9  | F10  | F11  | | F12  | Left | Down |  Up  |Right |      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |      |      | Home |PageDn|PageUp| End  |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | MS L | MS D |MS U  | MS R |MS Btn|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
  */
 [_LOWER] = KEYMAP( \
-  ALL_T(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_DEL,         KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
-  _______,        KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, \
-  _______,        _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+  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_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_MS_L, KC_MS_D, KC_MS_U, KC_MS_R, KC_BTN1, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
 ),
 
 /* Raise
- * ,-----------------------------------------. ,-----------------------------------------.
- * |   `  |   1  |   2  |   3  |   4  |   5  | |   6  |   7  |   8  |   9  |   0  |      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  | |  F6  |   -  |   =  |   [  |   ]  |  \   |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |  F7  |  F8  |  F9  |  F10 |  F11 | |  F12 | Left | Down |  Up  | Right|      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |      |      | Next | Vol- | Vol+ | Play |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | Left | Down |  Up  | Rght |MS_BN2|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
  */
 [_RAISE] = KEYMAP( \
-  ALL_T(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_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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, _______, \
-  _______,          _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+  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_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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_BTN2, \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
 ),
 
 /* Adjust (Lower + Raise)
- * ,-----------------------------------------. ,-----------------------------------------.
- * |      | Reset|      |      |      |      | |      |      |      |      |      | Reset|
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak|      |      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |      |      |      |      |      |      |
- * |------+------+------+------+------+------| |------+------+------+------+------+------|
- * |      |      |      |      |      |      | |      |      |      |      |      |      |
- * `-----------------------------------------' `-----------------------------------------'
+ * ,-----------------------------------------------------------------------------------.
+ * |      |Reset |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Reset | Del  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
  */
-[_ADJUST] = KEYMAP( \
-  _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET, \
-  _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  RESET,   KC_DEL, \
   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
-  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
 )
 
+
 };
 
 #ifdef AUDIO_ENABLE

From 75677655ad1546e5c75cdeafc136d59b99f26480 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 11:11:13 +0200
Subject: [PATCH 07/15] left shift is backspace on tap

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index c15c9724eb..b253dbfc1f 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -51,7 +51,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_QWERTY] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
   CTL_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, SFT_ENT , \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
   ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 
@@ -69,7 +69,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_COLEMAK] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
   CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
-  KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
   ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 
@@ -87,7 +87,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 [_DVORAK] = KEYMAP( \
   HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
   CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
-  KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
+  SFT_BSP, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
   ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
 ),
 

From 3b05183deb37dd39a7dcc9d989da1e7ee61c19a5 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 12:18:40 +0200
Subject: [PATCH 08/15] symmetric modifiers in bottom row

---
 keyboards/lets_split/keymaps/fabian/keymap.c | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/keyboards/lets_split/keymaps/fabian/keymap.c b/keyboards/lets_split/keymaps/fabian/keymap.c
index b253dbfc1f..0af505b476 100644
--- a/keyboards/lets_split/keymaps/fabian/keymap.c
+++ b/keyboards/lets_split/keymaps/fabian/keymap.c
@@ -45,14 +45,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------|------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
  * `-----------------------------------------------------------------------------------'
  */
 [_QWERTY] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
   CTL_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
   SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
-  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST \
 ),
 
 /* Colemak
@@ -63,14 +63,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------|------+------+------+------+------+------|
  * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
  * `-----------------------------------------------------------------------------------'
  */
 [_COLEMAK] = KEYMAP( \
   HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
   CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
   SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
-  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST \
 ),
 
 /* Dvorak
@@ -81,14 +81,14 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
  * |------+------+------+------+------+------|------+------+------+------+------+------|
  * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | Left | Down |  Up  |Right |
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
  * `-----------------------------------------------------------------------------------'
  */
 [_DVORAK] = KEYMAP( \
   HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
   CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
   SFT_BSP, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
-  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT \
+  ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST \
 ),
 
 /* Lower

From de9331c50cb8ec769f7f4fb2eb7a73a435fc4db2 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 12:19:13 +0200
Subject: [PATCH 09/15] custom makefile

---
 keyboards/lets_split/keymaps/fabian/Makefile | 9 +++++++++
 1 file changed, 9 insertions(+)
 create mode 100644 keyboards/lets_split/keymaps/fabian/Makefile

diff --git a/keyboards/lets_split/keymaps/fabian/Makefile b/keyboards/lets_split/keymaps/fabian/Makefile
new file mode 100644
index 0000000000..b8c82cb99d
--- /dev/null
+++ b/keyboards/lets_split/keymaps/fabian/Makefile
@@ -0,0 +1,9 @@
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+# UNICODE_ENABLE = yes
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif

From 4a1f701d9f3569061d0613599fced54be32b5a54 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 12:46:04 +0200
Subject: [PATCH 10/15] included amj40 implementation of nhou7 from
 https://github.com/nhou7/qmk_firmware_amj40

---
 keyboards/amj40/Makefile                      |   3 +
 keyboards/amj40/amj40.c                       |  30 +++
 keyboards/amj40/amj40.h                       |  38 ++++
 keyboards/amj40/config.h                      |  94 ++++++++++
 keyboards/amj40/keymaps/default/Makefile      |  27 +++
 keyboards/amj40/keymaps/default/build.sh      |  42 +++++
 keyboards/amj40/keymaps/default/keymap.c      | 173 ++++++++++++++++++
 keyboards/amj40/keymaps/default/readme.md     |  11 ++
 .../amj40/keymaps/default/updatemerge.sh      |   4 +
 keyboards/amj40/readme.md                     |  35 ++++
 keyboards/amj40/rules.mk                      |  66 +++++++
 11 files changed, 523 insertions(+)
 create mode 100755 keyboards/amj40/Makefile
 create mode 100755 keyboards/amj40/amj40.c
 create mode 100755 keyboards/amj40/amj40.h
 create mode 100755 keyboards/amj40/config.h
 create mode 100755 keyboards/amj40/keymaps/default/Makefile
 create mode 100755 keyboards/amj40/keymaps/default/build.sh
 create mode 100755 keyboards/amj40/keymaps/default/keymap.c
 create mode 100755 keyboards/amj40/keymaps/default/readme.md
 create mode 100755 keyboards/amj40/keymaps/default/updatemerge.sh
 create mode 100755 keyboards/amj40/readme.md
 create mode 100755 keyboards/amj40/rules.mk

diff --git a/keyboards/amj40/Makefile b/keyboards/amj40/Makefile
new file mode 100755
index 0000000000..4e2a6f00fd
--- /dev/null
+++ b/keyboards/amj40/Makefile
@@ -0,0 +1,3 @@
+ifndef MAKEFILE_INCLUDED
+	include ../../Makefile
+endif
\ No newline at end of file
diff --git a/keyboards/amj40/amj40.c b/keyboards/amj40/amj40.c
new file mode 100755
index 0000000000..5a23769991
--- /dev/null
+++ b/keyboards/amj40/amj40.c
@@ -0,0 +1,30 @@
+#include "amj40.h"
+#include "led.h"
+
+void matrix_init_kb(void) {
+	// put your keyboard start-up code here
+	// runs once when the firmware starts up
+	matrix_init_user();
+	led_init_ports();
+};
+
+void matrix_scan_kb(void) {
+	// put your looping keyboard code here
+	// runs every cycle (a lot)
+	matrix_scan_user();
+};
+
+void led_init_ports(void) {
+    // * Set our LED pins as output
+    DDRB |= (1<<2);
+}
+
+void led_set_kb(uint8_t usb_led) {
+    if (usb_led & (1<<USB_LED_CAPS_LOCK)) {
+        // Turn capslock on
+        PORTB &= ~(1<<2);
+    } else {
+        // Turn capslock off
+        PORTB |= (1<<2);
+    }
+}
diff --git a/keyboards/amj40/amj40.h b/keyboards/amj40/amj40.h
new file mode 100755
index 0000000000..ab629cba7f
--- /dev/null
+++ b/keyboards/amj40/amj40.h
@@ -0,0 +1,38 @@
+#ifndef AMJ40_H
+#define AMJ40_H
+
+#include "quantum.h"
+
+// readability  
+#define XXX KC_NO
+
+/* AMJ40 ver2.0 layout1 配列一
+ * ,-----------------------------------------------------------.
+ * | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B |
+ * |-----------------------------------------------------------|
+ * | 10   | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1B    |
+ * |-----------------------------------------------------------|
+ * | 20     | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |  2A | 2B |
+ * |-----------------------------------------------------------|
+ * | 30  | 31 | 32  |   34      |  35         | 39  | 3A | 3B  |
+ * `-----------------------------------------------------------'
+ */
+#define KEYMAP( \
+    k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
+    k10, k11, k12, k13, k14, k15, k16, k17, k18, k19,      k1b,  \
+    k20,      k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b,  \
+    k30, k31, k32,      k34, k35,                k39, k3a, k3b  \
+) { \
+    {k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b}, \
+    {k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, XXX, k1b}, \
+    {k20, XXX, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b}, \
+    {k30, k31, k32, XXX, k34, k35, XXX, XXX, XXX, k39, k3a, k3b} \
+}
+
+
+
+
+void matrix_init_user(void);
+void matrix_scan_user(void);
+
+#endif
diff --git a/keyboards/amj40/config.h b/keyboards/amj40/config.h
new file mode 100755
index 0000000000..4110111223
--- /dev/null
+++ b/keyboards/amj40/config.h
@@ -0,0 +1,94 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0x6072
+#define DEVICE_VER      0x0002
+#define MANUFACTURER    Han Chen
+#define PRODUCT         AMJ40
+#define DESCRIPTION     qmk port of AMJ40 v2 PCB
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 12
+
+// ROWS: Top to bottom, COLS: Left to right
+
+#define MATRIX_ROW_PINS { F4, F5, F6, F7}
+#define MATRIX_COL_PINS { F1, F0, E6, C7, C6, B0, D4, B1, B7, B5, B4, D7}
+#define UNUSED_PINS
+
+#define BACKLIGHT_PIN B6
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* Backlight configuration
+ */
+#define BACKLIGHT_LEVELS 4
+
+/* Underlight configuration
+ */
+
+#define RGB_DI_PIN D3
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 4     // Number of LEDs
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17
+
+/*
+ * Feature disable options
+ *  These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+//#define NO_DEBUG
+
+/* disable print */
+//#define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif
diff --git a/keyboards/amj40/keymaps/default/Makefile b/keyboards/amj40/keymaps/default/Makefile
new file mode 100755
index 0000000000..034e697bc2
--- /dev/null
+++ b/keyboards/amj40/keymaps/default/Makefile
@@ -0,0 +1,27 @@
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no  # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE  = no  # Mouse keys(+4700)
+EXTRAKEY_ENABLE  = yes # Audio control and System control(+450)
+CONSOLE_ENABLE   = no  # Console for debug(+400)
+COMMAND_ENABLE   = yes # Commands for debug and configuration
+NKRO_ENABLE      = yes # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+MIDI_ENABLE      = no  # MIDI controls
+AUDIO_ENABLE     = no  # Audio output on port C6
+UNICODE_ENABLE   = no  # Unicode
+BLUETOOTH_ENABLE = no  # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE  = yes  # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/amj40/keymaps/default/build.sh b/keyboards/amj40/keymaps/default/build.sh
new file mode 100755
index 0000000000..6b4b4568f5
--- /dev/null
+++ b/keyboards/amj40/keymaps/default/build.sh
@@ -0,0 +1,42 @@
+#!/bin/bash
+# adjust for cpu 
+# -j 16 gave best result on a hyperthreaded quad core core i7
+
+LIMIT=10
+THREADS="-j 16"
+KMAP=iso_split_rshift
+
+echo "We need sudo later"
+sudo ls 2>&1 /dev/null
+
+function wait_bootloader {
+	echo "Waiting for Bootloader..."
+	local STARTTIME=$(date +"%s")
+	local REMIND=0
+    local EXEC=dfu-programmer
+    local TARGET=atmega32u4
+	while true
+	do
+		sudo $EXEC $TARGET get > /dev/null 2>&1
+		[ $? -eq 0 ] && break
+		ENDTIME=$(date +"%s")
+		DURATION=$(($ENDTIME-$STARTTIME))
+		if [ $REMIND -eq 0 -a $DURATION -gt $LIMIT ]
+		then 
+			echo "Did you forget to press the reset button?"
+			REMIND=1
+		fi
+        sleep 1
+	done
+}
+make clean
+make KEYMAP=${KMAP} ${THREADS}
+if [[ $? -eq 0 ]]
+then
+    echo "please trigger flashing!"
+    wait_bootloader
+    sudo make KEYMAP=${KMAP} dfu ${THREADS}
+else
+    echo "make failed"
+    exit 77
+fi
diff --git a/keyboards/amj40/keymaps/default/keymap.c b/keyboards/amj40/keymaps/default/keymap.c
new file mode 100755
index 0000000000..13b48c2ada
--- /dev/null
+++ b/keyboards/amj40/keymaps/default/keymap.c
@@ -0,0 +1,173 @@
+
+
+// This is the canonical layout file for the Quantum project. If you want to add another keyboard,
+// this is the style you want to emulate.
+
+#include "amj40.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 _QWERTY 0
+#define _LOWER 1
+#define _RAISE 2
+#define _ADJUST 3
+
+
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+
+
+
+
+// increase readability 
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+        /* Default Layer
+     * ,-----------------------------------------------------------.
+     * | Esc|  Q |  W |  E |  R |  T |  Y |  U |  I |  O |  P | BS |
+     * |-----------------------------------------------------------|
+     * | Tab |  A |  S |  D |  F |  G |  H |  J |  K |  L | Ent    |
+     * |-----------------------------------------------------------|
+     * | LSft   |  Z |  X |  C |  V |  B |  N |  M |  ,  |  . | /? |
+     * |-----------------------------------------------------------|
+     * | LCtl | LGui| LAlt|  spc fn0  |  spc fn1    |fn2|RAlt|RCtl |
+     * `-----------------------------------------------------------'
+     */
+    [_QWERTY] = KEYMAP( \
+        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_ENT,\
+        KC_LSFT, KC_Z,   KC_X,   KC_C,   KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH,\
+        KC_LCTL, KC_LGUI, KC_LALT,          F(0),           F(1),        F(2), KC_RALT, KC_RCTL \
+		),
+
+    /* Function Layer 1 HHKB style
+     * ,-----------------------------------------------------------.
+     * |   ~  |   !   |  @  | # | $ | % | ^ | & | * | ( | ) | Bkspc|
+     * |-----------------------------------------------------------|
+     * |   F1   | F2 | F3 | F4 | F5 |  F6 | _ | + | [ | ] |  Pipe  |
+     * |-----------------------------------------------------------|
+     * |    F7    | F8 | F9 |  F10  |  F11 |  F12 | End|PgDn| ↓ |     |    |
+     * |-----------------------------------------------------------|
+     * |     |    |     |           |             | Stop| App|     |
+     * `-----------------------------------------------------------'
+     */
+    [_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_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+		KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),BL_TOGG, BL_INC, BL_DEC, \
+		_______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+		),
+	
+	/* Function Layer 1 HHKB style
+     * ,-----------------------------------------------------------.
+     * |Caps|    |MSel| ⏮ | ⏯ | ⏭ |PSCR|SkLk|Paus|  ↑ | Ins| Del|
+     * |-----------------------------------------------------------|
+     * |      | 🔇 | ⏏ |    |  * |  / |Hone|PgUp|  ← |  → |       |
+     * |-----------------------------------------------------------|
+     * |        | 🔉 | 🔊 |    |  + |  - | End|PgDn| ↓ |     |    |
+     * |-----------------------------------------------------------|
+     * |     |    |     |           |             | Stop| App|     |
+     * `-----------------------------------------------------------'
+     */
+    [_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_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_DEL, \
+		_______, KC_TRNS, _______, KC_TRNS, KC_TRNS, _______, _______, RGB_TOG \
+		),
+	
+	/* Function Layer 1 HHKB style
+     * ,-----------------------------------------------------------.
+     * |Caps|    |MSel| ⏮ | ⏯ | ⏭ |PSCR|SkLk|Paus|  ↑ | Ins| Del|
+     * |-----------------------------------------------------------|
+     * |      | 🔇 | ⏏ |    |  * |  / |Hone|PgUp|  ← |  → |       |
+     * |-----------------------------------------------------------|
+     * |        | 🔉 | 🔊 |    |  + |  - | End|PgDn| ↓ |     |    |
+     * |-----------------------------------------------------------|
+     * |     |    |     |           |             | Stop| App|     |
+     * `-----------------------------------------------------------'
+     */
+    [_ADJUST] = KEYMAP( \
+        _______, RESET,   _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+		_______, _______, _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, _______, _______, _______,  _______,  \
+		_______, _______, _______, RGB_TOG,  RGB_MOD,  RGB_HUI,  RGB_HUD,  RGB_SAI,  RGB_SAD,  RGB_VAI,  RGB_VAD, \
+		KC_SYSTEM_SLEEP, _______, _______, _______, _______, _______, _______, _______ \
+		),
+
+    
+
+};
+
+
+		
+
+enum function_id {
+    LAUNCH,
+    RGBLED_TOGGLE,
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+	[0]  = ACTION_LAYER_TAP_KEY(_LOWER, KC_SPC),
+	[1]  = ACTION_LAYER_TAP_KEY(_RAISE, KC_SPC),
+	[2]  = ACTION_LAYER_TAP_KEY(_ADJUST, KC_LGUI),
+
+};
+
+
+
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    // MACRODOWN only works in this function
+   
+    return MACRO_NONE;
+};
+
+
+
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ 
+  switch (keycode) {
+    
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/amj40/keymaps/default/readme.md b/keyboards/amj40/keymaps/default/readme.md
new file mode 100755
index 0000000000..2659292ae5
--- /dev/null
+++ b/keyboards/amj40/keymaps/default/readme.md
@@ -0,0 +1,11 @@
+AMJ40 Default Layout
+=====================
+
+##Quantum MK Firmware
+For the full Quantum feature list, see the parent readme.md.
+
+# Features
+* Based on a combination of the original AMJ40 keymap from the TMK firmware as well as the Planck Ortholinear keyboard's "Lower," "Raise," and "Adjust" layers.
+* View the keymap.c file to understand they layout of the keymap.
+* Has keys to toggle both the switch LEDs and underglow LEDs.
+
diff --git a/keyboards/amj40/keymaps/default/updatemerge.sh b/keyboards/amj40/keymaps/default/updatemerge.sh
new file mode 100755
index 0000000000..da5457e195
--- /dev/null
+++ b/keyboards/amj40/keymaps/default/updatemerge.sh
@@ -0,0 +1,4 @@
+#!/bin/bash
+git checkout amj60      # gets you on branch amj60
+git fetch origin        # gets you up to date with origin
+git merge origin/master
diff --git a/keyboards/amj40/readme.md b/keyboards/amj40/readme.md
new file mode 100755
index 0000000000..e705f20fea
--- /dev/null
+++ b/keyboards/amj40/readme.md
@@ -0,0 +1,35 @@
+AMJ40 keyboard firmware
+======================
+DIY/Assembled compact 40% keyboard.
+
+Ported by N.Hou from the original TMK firmware.
+
+*Supports both backlight LEDs as well as RGB underglow. 
+
+*For reference, the AMJ40 uses pin D3 for underglow lighting.
+
+## Quantum MK Firmware
+
+For the full Quantum feature list, see [the parent readme.md](/readme.md).
+
+## Building
+
+Download or clone the whole firmware and navigate to the keyboards/amj40
+folder. Once your dev env is setup, you'll be able to type `make` to generate
+your .hex - you can then use `make dfu` to program your PCB once you hit the
+reset button. 
+
+Depending on which keymap you would like to use, you will have to compile
+slightly differently.
+
+### Default
+To build with the default keymap, simply run `sudo make all`.
+The .hex file will appear in the root of the qmk firmware folder.
+
+
+
+
+### Original tmk firmware
+The original firmware that was used to port to qmk can be found [here](https://github.com/AMJKeyboard/AMJ40).
+
+
diff --git a/keyboards/amj40/rules.mk b/keyboards/amj40/rules.mk
new file mode 100755
index 0000000000..18403ac328
--- /dev/null
+++ b/keyboards/amj40/rules.mk
@@ -0,0 +1,66 @@
+
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+#   Teensy halfKay   512
+#   Teensy++ halfKay 1024
+#   Atmel DFU loader 4096
+#   LUFA bootloader  4096
+#   USBaspLoader     2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+
+# Build Options
+#   comment out to disable the options.
+#
+BOOTMAGIC_ENABLE ?= no  # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE  ?= no  # Mouse keys(+4700)
+EXTRAKEY_ENABLE  ?= yes # Audio control and System control(+450)
+CONSOLE_ENABLE   ?= yes # Console for debug(+400)
+COMMAND_ENABLE   ?= yes # Commands for debug and configuration
+NKRO_ENABLE      ?= yes # USB Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+RGBLIGHT_ENABLE  ?= yes # Enable keyboard underlight functionality (+4870)
+BACKLIGHT_ENABLE ?= yes # Enable keyboard backlight functionality (+1150)
+MIDI_ENABLE      ?= no  # MIDI controls
+AUDIO_ENABLE     ?= no
+UNICODE_ENABLE   ?= no  # Unicode
+BLUETOOTH_ENABLE ?= no  # Enable Bluetooth with the Adafruit EZ-Key HID

From 619081559ba464f2b03f8bbbcf4d109249979aba Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 12:47:40 +0200
Subject: [PATCH 11/15] added my amj40 custom layout

---
 keyboards/amj40/keymaps/fabian/Makefile |  27 ++++++
 keyboards/amj40/keymaps/fabian/keymap.c | 116 ++++++++++++++++++++++++
 keyboards/amj40/keymaps/fabian/t        |  38 ++++++++
 3 files changed, 181 insertions(+)
 create mode 100755 keyboards/amj40/keymaps/fabian/Makefile
 create mode 100755 keyboards/amj40/keymaps/fabian/keymap.c
 create mode 100755 keyboards/amj40/keymaps/fabian/t

diff --git a/keyboards/amj40/keymaps/fabian/Makefile b/keyboards/amj40/keymaps/fabian/Makefile
new file mode 100755
index 0000000000..034e697bc2
--- /dev/null
+++ b/keyboards/amj40/keymaps/fabian/Makefile
@@ -0,0 +1,27 @@
+# Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = no  # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE  = no  # Mouse keys(+4700)
+EXTRAKEY_ENABLE  = yes # Audio control and System control(+450)
+CONSOLE_ENABLE   = no  # Console for debug(+400)
+COMMAND_ENABLE   = yes # Commands for debug and configuration
+NKRO_ENABLE      = yes # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = yes  # Enable keyboard backlight functionality
+MIDI_ENABLE      = no  # MIDI controls
+AUDIO_ENABLE     = no  # Audio output on port C6
+UNICODE_ENABLE   = no  # Unicode
+BLUETOOTH_ENABLE = no  # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE  = yes  # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+#define ws2812_PORTREG  PORTD
+#define ws2812_DDRREG   DDRD
+
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/amj40/keymaps/fabian/keymap.c b/keyboards/amj40/keymaps/fabian/keymap.c
new file mode 100755
index 0000000000..aa62d04063
--- /dev/null
+++ b/keyboards/amj40/keymaps/fabian/keymap.c
@@ -0,0 +1,116 @@
+#include "amj40.h"
+
+#undef KEYMAP
+#define KEYMAP( \
+    k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
+    k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b,  \
+    k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b,  \
+    k30, k31, k32, k33, k34, k35,                k39, k3a, k3b  \
+) { \
+    {k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b}, \
+    {k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b}, \
+    {k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b}, \
+    {k30, k31, k32, k33, k34, k35, XXX, XXX, XXX, k39, k3a, k3b} \
+}
+
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+#define TCTLESC CTL_T(KC_ESC)
+#define TSFTBSP SFT_T(KC_BSPC) 
+#define TSFTENT SFT_T(KC_ENT)
+
+
+#define _BASE 0
+#define _LOWER 1
+#define _RAISE 2
+#define _ADJUST 3
+
+
+enum custom_keycodes {
+  BASE = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+
+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, \
+        TCTLESC,  KC_A,    KC_S,    KC_D,    KC_F,   KC_G,   KC_H,   KC_J,   KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+        TSFTBSP,  KC_Z,    KC_X,    KC_C,    KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH, TSFTENT, \
+        F(2),     KC_LCTL, KC_LALT, KC_LGUI,         F(0),           F(1),            KC_RGUI, KC_RALT, KC_RCTL \
+    ),
+    [_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_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+        _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),KC_HOME, KC_END, _______, \
+        _______, _______, _______, _______,          _______,          KC_LEFT,          KC_DOWN, KC_UP,   KC_RGHT \
+    ),
+    [_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_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_LEFT, KC_DOWN, KC_UP, KC_RGHT, _______, \
+        BL_STEP, _______, _______, _______,          _______,         _______,          KC_VOLD, KC_VOLU, KC_MPLY \
+    ),
+    [_ADJUST] = KEYMAP( \
+        RESET  , _______, _______, _______, _______, _______, _______, _______, _______, KC_P7,    KC_P8,    KC_P9, \
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_P4,    KC_P5,    KC_P6, \
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_P1,    KC_P2,    KC_P3, \
+        _______, _______, _______, _______,          _______,          _______,          KC_P0,    KC_PDOT,  KC_COMM \
+    ),
+};
+
+
+enum function_id {
+    LAUNCH,
+    RGBLED_TOGGLE,
+};
+
+
+const uint16_t PROGMEM fn_actions[] = {
+        [0]  = ACTION_LAYER_TAP_KEY(_LOWER, KC_SPC),
+        [1]  = ACTION_LAYER_TAP_KEY(_RAISE, KC_SPC),
+        [2]  = ACTION_LAYER_TAP_KEY(_ADJUST, KC_LGUI),
+};
+
+
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+    return MACRO_NONE;
+};
+
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
diff --git a/keyboards/amj40/keymaps/fabian/t b/keyboards/amj40/keymaps/fabian/t
new file mode 100755
index 0000000000..7f6469a95c
--- /dev/null
+++ b/keyboards/amj40/keymaps/fabian/t
@@ -0,0 +1,38 @@
+#ifndef AMJ40_H
+#define AMJ40_H
+
+#include "quantum.h"
+
+// readability  
+#define XXX KC_NO
+
+/* AMJ40 ver2.0 layout1 配列一
+ * ,-----------------------------------------------------------.
+ * | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B |
+ * |-----------------------------------------------------------|
+ * | 10   | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1B    |
+ * |-----------------------------------------------------------|
+ * | 20     | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |  2A | 2B |
+ * |-----------------------------------------------------------|
+ * | 30  | 31 | 32  |   34      |  35         | 39  | 3A | 3B  |
+ * `-----------------------------------------------------------'
+ */
+#define KEYMAP( \
+    k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
+    k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b,  \
+    k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b,  \
+    k30, k31, k32, k33, k34, k35,                k39, k3a, k3b  \
+) { \
+    {k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b}, \
+    {k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b}, \
+    {k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b}, \
+    {k30, k31, k32, k33, k34, k35, XXX, XXX, XXX, k39, k3a, k3b} \
+}
+
+
+
+
+void matrix_init_user(void);
+void matrix_scan_user(void);
+
+#endif

From 20b3ac49b73e1f1a4395dd4d2d24a2607975885c Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Wed, 26 Jul 2017 12:48:13 +0200
Subject: [PATCH 12/15] deleted file

---
 keyboards/amj40/keymaps/fabian/t | 38 --------------------------------
 1 file changed, 38 deletions(-)
 delete mode 100755 keyboards/amj40/keymaps/fabian/t

diff --git a/keyboards/amj40/keymaps/fabian/t b/keyboards/amj40/keymaps/fabian/t
deleted file mode 100755
index 7f6469a95c..0000000000
--- a/keyboards/amj40/keymaps/fabian/t
+++ /dev/null
@@ -1,38 +0,0 @@
-#ifndef AMJ40_H
-#define AMJ40_H
-
-#include "quantum.h"
-
-// readability  
-#define XXX KC_NO
-
-/* AMJ40 ver2.0 layout1 配列一
- * ,-----------------------------------------------------------.
- * | 00 | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B |
- * |-----------------------------------------------------------|
- * | 10   | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1B    |
- * |-----------------------------------------------------------|
- * | 20     | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 |  2A | 2B |
- * |-----------------------------------------------------------|
- * | 30  | 31 | 32  |   34      |  35         | 39  | 3A | 3B  |
- * `-----------------------------------------------------------'
- */
-#define KEYMAP( \
-    k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
-    k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b,  \
-    k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b,  \
-    k30, k31, k32, k33, k34, k35,                k39, k3a, k3b  \
-) { \
-    {k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b}, \
-    {k10, k11, k12, k13, k14, k15, k16, k17, k18, k19, k1a, k1b}, \
-    {k20, k21, k22, k23, k24, k25, k26, k27, k28, k29, k2a, k2b}, \
-    {k30, k31, k32, k33, k34, k35, XXX, XXX, XXX, k39, k3a, k3b} \
-}
-
-
-
-
-void matrix_init_user(void);
-void matrix_scan_user(void);
-
-#endif

From 661106bac466f99341edea9d2e38e2f8c75746d9 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Mon, 31 Jul 2017 21:16:55 +0200
Subject: [PATCH 13/15] layout updates and cleanups

---
 keyboards/amj40/keymaps/fabian/keymap.c | 204 +++++++++++++++++++-----
 1 file changed, 162 insertions(+), 42 deletions(-)

diff --git a/keyboards/amj40/keymaps/fabian/keymap.c b/keyboards/amj40/keymaps/fabian/keymap.c
index aa62d04063..57b4d957b2 100755
--- a/keyboards/amj40/keymaps/fabian/keymap.c
+++ b/keyboards/amj40/keymaps/fabian/keymap.c
@@ -1,5 +1,6 @@
 #include "amj40.h"
 
+// Set the custom keymap
 #undef KEYMAP
 #define KEYMAP( \
     k00, k01, k02, k03, k04, k05, k06, k07, k08, k09, k0a, k0b, \
@@ -13,76 +14,195 @@
     {k30, k31, k32, k33, k34, k35, XXX, XXX, XXX, k39, k3a, k3b} \
 }
 
+// Fillers to make layering more clear
 #define _______ KC_TRNS
 #define XXXXXXX KC_NO
-#define TCTLESC CTL_T(KC_ESC)
-#define TSFTBSP SFT_T(KC_BSPC) 
-#define TSFTENT SFT_T(KC_ENT)
 
+// Custom
+#define CTL_ESC CTL_T(KC_ESC)  // Tap for Escape, hold for Control
+#define SFT_ENT SFT_T(KC_ENT)  // Tap for Enter, hold for Shift
+#define SFT_BSP SFT_T(KC_BSPC) // Tap for Backspace, hold for Shift
+#define HPR_TAB ALL_T(KC_TAB)  // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+// #define MEH_GRV MEH_T(KC_GRV)  // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
 
-#define _BASE 0
-#define _LOWER 1
-#define _RAISE 2
-#define _ADJUST 3
-
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
 
 enum custom_keycodes {
-  BASE = SAFE_RANGE,
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
   LOWER,
   RAISE,
   ADJUST,
 };
 
-
 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, \
-        TCTLESC,  KC_A,    KC_S,    KC_D,    KC_F,   KC_G,   KC_H,   KC_J,   KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
-        TSFTBSP,  KC_Z,    KC_X,    KC_C,    KC_V,   KC_B,   KC_N,   KC_M,   KC_COMM, KC_DOT,  KC_SLSH, TSFTENT, \
-        F(2),     KC_LCTL, KC_LALT, KC_LGUI,         F(0),           F(1),            KC_RGUI, KC_RALT, KC_RCTL \
-    ),
-    [_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_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
-        _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,S(KC_NUHS),S(KC_NUBS),KC_HOME, KC_END, _______, \
-        _______, _______, _______, _______,          _______,          KC_LEFT,          KC_DOWN, KC_UP,   KC_RGHT \
-    ),
-    [_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_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_LEFT, KC_DOWN, KC_UP, KC_RGHT, _______, \
-        BL_STEP, _______, _______, _______,          _______,         _______,          KC_VOLD, KC_VOLU, KC_MPLY \
-    ),
-    [_ADJUST] = KEYMAP( \
-        RESET  , _______, _______, _______, _______, _______, _______, _______, _______, KC_P7,    KC_P8,    KC_P9, \
-        _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_P4,    KC_P5,    KC_P6, \
-        _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_P1,    KC_P2,    KC_P3, \
-        _______, _______, _______, _______,          _______,          _______,          KC_P0,    KC_PDOT,  KC_COMM \
-    ),
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  | Lower and Space | Raise and Bksp | GUI  |AltGr | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  F(2),    KC_LCTL, KC_LALT, KC_LGUI,          F(0),             F(1),             KC_RGUI, KC_RALT, KC_RCTL \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  | Lower and Space | Raise and Bksp | GUI  |AltGr | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+  HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC, \
+  CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT, \
+  SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT , \
+  F(2),    KC_LCTL, KC_LALT, KC_LGUI,          F(0),             F(1),             KC_RGUI, KC_RALT, KC_RCTL \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  | Lower and Space | Raise and Bksp | GUI  |AltGr | Ctrl |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+  HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC, \
+  CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH, \
+  SFT_BSP, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT , \
+  F(2),    KC_LCTL, KC_LALT, KC_LGUI,          F(0),             F(1),             KC_RGUI, KC_RALT, KC_RCTL \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | MS L | MS D |MS U  | MS R |MS Btn|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | 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_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+  _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_MS_L, KC_MS_D, KC_MS_U, KC_MS_R, KC_BTN1, \
+  _______, _______, _______, _______,          _______,          _______,          KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * |   `  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 | Left | Down |  Up  | Rght |MS_BN2|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      | 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_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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_BTN2, \
+  _______, _______, _______, _______,          _______,          _______,          KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |      |Reset |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Reset | Del  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  KEYMAP( \
+  _______, RESET,   _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  RESET,   KC_DEL, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______,          _______,          _______,          _______, _______, _______ \
+)
+
 };
 
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
 
-enum function_id {
-    LAUNCH,
-    RGBLED_TOGGLE,
-};
-
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
 
 const uint16_t PROGMEM fn_actions[] = {
         [0]  = ACTION_LAYER_TAP_KEY(_LOWER, KC_SPC),
-        [1]  = ACTION_LAYER_TAP_KEY(_RAISE, KC_SPC),
+        [1]  = ACTION_LAYER_TAP_KEY(_RAISE, KC_BSPC),
         [2]  = ACTION_LAYER_TAP_KEY(_ADJUST, KC_LGUI),
 };
 
-
 const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
 {
     return MACRO_NONE;
 };
 
-
 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
+        persistent_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
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
     case LOWER:
       if (record->event.pressed) {
         layer_on(_LOWER);

From 015bf30d9b827692f387a09e1c24549e2a25c863 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Mon, 31 Jul 2017 22:01:35 +0200
Subject: [PATCH 14/15] changed adjust layer to emulate mouse on rignt hand

---
 keyboards/amj40/keymaps/fabian/Makefile       |   2 +-
 keyboards/amj40/keymaps/fabian/keymap.c       |  14 +-
 keyboards/deltasplit75/i2c.c                  | 324 ++++-----
 keyboards/deltasplit75/i2c.h                  |  62 +-
 .../deltasplit75/keymaps/default/config.h     |  62 +-
 keyboards/deltasplit75/matrix.c               | 636 +++++++++---------
 keyboards/deltasplit75/serial.c               | 456 ++++++-------
 keyboards/deltasplit75/serial.h               |  52 +-
 keyboards/deltasplit75/split_util.c           | 162 ++---
 keyboards/deltasplit75/split_util.h           |  44 +-
 10 files changed, 907 insertions(+), 907 deletions(-)

diff --git a/keyboards/amj40/keymaps/fabian/Makefile b/keyboards/amj40/keymaps/fabian/Makefile
index 034e697bc2..a914e4c0ce 100755
--- a/keyboards/amj40/keymaps/fabian/Makefile
+++ b/keyboards/amj40/keymaps/fabian/Makefile
@@ -3,7 +3,7 @@
 #   the appropriate keymap folder that will get included automatically
 #
 BOOTMAGIC_ENABLE = no  # Virtual DIP switch configuration(+1000)
-MOUSEKEY_ENABLE  = no  # Mouse keys(+4700)
+MOUSEKEY_ENABLE  = yes  # Mouse keys(+4700)
 EXTRAKEY_ENABLE  = yes # Audio control and System control(+450)
 CONSOLE_ENABLE   = no  # Console for debug(+400)
 COMMAND_ENABLE   = yes # Commands for debug and configuration
diff --git a/keyboards/amj40/keymaps/fabian/keymap.c b/keyboards/amj40/keymaps/fabian/keymap.c
index 57b4d957b2..aef514153e 100755
--- a/keyboards/amj40/keymaps/fabian/keymap.c
+++ b/keyboards/amj40/keymaps/fabian/keymap.c
@@ -134,19 +134,19 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
 /* Adjust (Lower + Raise)
  * ,-----------------------------------------------------------------------------------.
- * |      |Reset |      |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak|Reset | Del  |
+ * |Reset |Colemk|Qwerty|Dvorak|      |      |      |      |  MU  |      |      |Reset |
  * |------+------+------+------+------+------|------+------+------+------+------+------|
- * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |      |AGNorm|AGSwap|      |      |      |      |  ML  |  MD  |  MR  |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
- * |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |      |AudOn |AudOff|      |      |      |      |MBtn1 |MBtn2 |MBtn3 |      |      |
  * |------+------+------+------+------+------+------+------+------+------+------+------|
  * |      |      |      |      |      |      |      |      |      |      |      |      |
  * `-----------------------------------------------------------------------------------'
  */
-[_ADJUST] =  KEYMAP( \
-  _______, RESET,   _______, AU_ON,   AU_OFF,  AG_NORM, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  RESET,   KC_DEL, \
-  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
-  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+[_ADJUST] = KEYMAP( \
+  RESET,   COLEMAK, QWERTY,  DVORAK,  _______, _______, _______, _______, KC_MS_U, _______, _______, RESET, \
+  _______, AG_NORM, AG_SWAP, _______, _______, _______, _______, KC_MS_L, KC_MS_D, KC_MS_R, _______, _______, \
+  _______, AU_ON,   AU_OFF,  _______, _______, _______, _______, KC_BTN1, KC_BTN2, KC_BTN3, _______, _______, \
   _______, _______, _______, _______,          _______,          _______,          _______, _______, _______ \
 )
 
diff --git a/keyboards/deltasplit75/i2c.c b/keyboards/deltasplit75/i2c.c
index af806c75b6..084c890c40 100644
--- a/keyboards/deltasplit75/i2c.c
+++ b/keyboards/deltasplit75/i2c.c
@@ -1,162 +1,162 @@
-#include <util/twi.h>
-#include <avr/io.h>
-#include <stdlib.h>
-#include <avr/interrupt.h>
-#include <util/twi.h>
-#include <stdbool.h>
-#include "i2c.h"
-
-#ifdef USE_I2C
-
-// Limits the amount of we wait for any one i2c transaction.
-// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
-// 9 bits, a single transaction will take around 90μs to complete.
-//
-// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
-// poll loop takes at least 8 clock cycles to execute
-#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
-
-#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
-
-volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
-
-static volatile uint8_t slave_buffer_pos;
-static volatile bool slave_has_register_set = false;
-
-// Wait for an i2c operation to finish
-inline static
-void i2c_delay(void) {
-  uint16_t lim = 0;
-  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
-    lim++;
-
-  // easier way, but will wait slightly longer
-  // _delay_us(100);
-}
-
-// Setup twi to run at 100kHz
-void i2c_master_init(void) {
-  // no prescaler
-  TWSR = 0;
-  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
-  // Check datasheets for more info.
-  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
-}
-
-// Start a transaction with the given i2c slave address. The direction of the
-// transfer is set with I2C_READ and I2C_WRITE.
-// returns: 0 => success
-//          1 => error
-uint8_t i2c_master_start(uint8_t address) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
-
-  i2c_delay();
-
-  // check that we started successfully
-  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
-    return 1;
-
-  TWDR = address;
-  TWCR = (1<<TWINT) | (1<<TWEN);
-
-  i2c_delay();
-
-  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
-    return 1; // slave did not acknowledge
-  else
-    return 0; // success
-}
-
-
-// Finish the i2c transaction.
-void i2c_master_stop(void) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
-
-  uint16_t lim = 0;
-  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
-    lim++;
-}
-
-// Write one byte to the i2c slave.
-// returns 0 => slave ACK
-//         1 => slave NACK
-uint8_t i2c_master_write(uint8_t data) {
-  TWDR = data;
-  TWCR = (1<<TWINT) | (1<<TWEN);
-
-  i2c_delay();
-
-  // check if the slave acknowledged us
-  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
-}
-
-// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
-// if ack=0 the acknowledge bit is not set.
-// returns: byte read from i2c device
-uint8_t i2c_master_read(int ack) {
-  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
-
-  i2c_delay();
-  return TWDR;
-}
-
-void i2c_reset_state(void) {
-  TWCR = 0;
-}
-
-void i2c_slave_init(uint8_t address) {
-  TWAR = address << 0; // slave i2c address
-  // TWEN  - twi enable
-  // TWEA  - enable address acknowledgement
-  // TWINT - twi interrupt flag
-  // TWIE  - enable the twi interrupt
-  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
-}
-
-ISR(TWI_vect);
-
-ISR(TWI_vect) {
-  uint8_t ack = 1;
-  switch(TW_STATUS) {
-    case TW_SR_SLA_ACK:
-      // this device has been addressed as a slave receiver
-      slave_has_register_set = false;
-      break;
-
-    case TW_SR_DATA_ACK:
-      // this device has received data as a slave receiver
-      // The first byte that we receive in this transaction sets the location
-      // of the read/write location of the slaves memory that it exposes over
-      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
-      // slave_buffer_pos after each write.
-      if(!slave_has_register_set) {
-        slave_buffer_pos = TWDR;
-        // don't acknowledge the master if this memory loctaion is out of bounds
-        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
-          ack = 0;
-          slave_buffer_pos = 0;
-        }
-        slave_has_register_set = true;
-      } else {
-        i2c_slave_buffer[slave_buffer_pos] = TWDR;
-        BUFFER_POS_INC();
-      }
-      break;
-
-    case TW_ST_SLA_ACK:
-    case TW_ST_DATA_ACK:
-      // master has addressed this device as a slave transmitter and is
-      // requesting data.
-      TWDR = i2c_slave_buffer[slave_buffer_pos];
-      BUFFER_POS_INC();
-      break;
-
-    case TW_BUS_ERROR: // something went wrong, reset twi state
-      TWCR = 0;
-    default:
-      break;
-  }
-  // Reset everything, so we are ready for the next TWI interrupt
-  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
-}
-#endif
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+#ifdef USE_I2C
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK)  =>  # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+
+  // easier way, but will wait slightly longer
+  // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+  // no prescaler
+  TWSR = 0;
+  // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+  // Check datasheets for more info.
+  TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+//          1 => error
+uint8_t i2c_master_start(uint8_t address) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+  i2c_delay();
+
+  // check that we started successfully
+  if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+    return 1;
+
+  TWDR = address;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+    return 1; // slave did not acknowledge
+  else
+    return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+  uint16_t lim = 0;
+  while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+    lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+//         1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+  TWDR = data;
+  TWCR = (1<<TWINT) | (1<<TWEN);
+
+  i2c_delay();
+
+  // check if the slave acknowledged us
+  return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+  TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+  i2c_delay();
+  return TWDR;
+}
+
+void i2c_reset_state(void) {
+  TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+  TWAR = address << 0; // slave i2c address
+  // TWEN  - twi enable
+  // TWEA  - enable address acknowledgement
+  // TWINT - twi interrupt flag
+  // TWIE  - enable the twi interrupt
+  TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+  uint8_t ack = 1;
+  switch(TW_STATUS) {
+    case TW_SR_SLA_ACK:
+      // this device has been addressed as a slave receiver
+      slave_has_register_set = false;
+      break;
+
+    case TW_SR_DATA_ACK:
+      // this device has received data as a slave receiver
+      // The first byte that we receive in this transaction sets the location
+      // of the read/write location of the slaves memory that it exposes over
+      // i2c.  After that, bytes will be written at slave_buffer_pos, incrementing
+      // slave_buffer_pos after each write.
+      if(!slave_has_register_set) {
+        slave_buffer_pos = TWDR;
+        // don't acknowledge the master if this memory loctaion is out of bounds
+        if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+          ack = 0;
+          slave_buffer_pos = 0;
+        }
+        slave_has_register_set = true;
+      } else {
+        i2c_slave_buffer[slave_buffer_pos] = TWDR;
+        BUFFER_POS_INC();
+      }
+      break;
+
+    case TW_ST_SLA_ACK:
+    case TW_ST_DATA_ACK:
+      // master has addressed this device as a slave transmitter and is
+      // requesting data.
+      TWDR = i2c_slave_buffer[slave_buffer_pos];
+      BUFFER_POS_INC();
+      break;
+
+    case TW_BUS_ERROR: // something went wrong, reset twi state
+      TWCR = 0;
+    default:
+      break;
+  }
+  // Reset everything, so we are ready for the next TWI interrupt
+  TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}
+#endif
diff --git a/keyboards/deltasplit75/i2c.h b/keyboards/deltasplit75/i2c.h
index cc3910806c..08ce4b0093 100644
--- a/keyboards/deltasplit75/i2c.h
+++ b/keyboards/deltasplit75/i2c.h
@@ -1,31 +1,31 @@
-#ifndef I2C_H
-#define I2C_H
-
-#include <stdint.h>
-
-#ifndef F_CPU
-#define F_CPU 16000000UL
-#endif
-
-#define I2C_READ 1
-#define I2C_WRITE 0
-
-#define I2C_ACK 1
-#define I2C_NACK 0
-
-#define SLAVE_BUFFER_SIZE 0x10
-
-// i2c SCL clock frequency
-#define SCL_CLOCK  100000L
-
-extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
-
-void i2c_master_init(void);
-uint8_t i2c_master_start(uint8_t address);
-void i2c_master_stop(void);
-uint8_t i2c_master_write(uint8_t data);
-uint8_t i2c_master_read(int);
-void i2c_reset_state(void);
-void i2c_slave_init(uint8_t address);
-
-#endif
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK  100000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+#endif
diff --git a/keyboards/deltasplit75/keymaps/default/config.h b/keyboards/deltasplit75/keymaps/default/config.h
index c72c00e681..4fb2554e0d 100644
--- a/keyboards/deltasplit75/keymaps/default/config.h
+++ b/keyboards/deltasplit75/keymaps/default/config.h
@@ -1,31 +1,31 @@
-/*
-Copyright 2012 Jun Wako <wakojun@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-
-#define USE_SERIAL
-
-#define MASTER_LEFT
-// #define _MASTER_RIGHT
-// #define EE_HANDS
-
-
-#ifdef SUBPROJECT_v2
-    #include "../../v2/config.h"
-#endif
-#ifdef SUBPROJECT_protosplit
-    #include "../../protosplit/config.h"
-#endif
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+
+#define USE_SERIAL
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_v2
+    #include "../../v2/config.h"
+#endif
+#ifdef SUBPROJECT_protosplit
+    #include "../../protosplit/config.h"
+#endif
diff --git a/keyboards/deltasplit75/matrix.c b/keyboards/deltasplit75/matrix.c
index c3bb0b058c..1389690042 100644
--- a/keyboards/deltasplit75/matrix.c
+++ b/keyboards/deltasplit75/matrix.c
@@ -1,318 +1,318 @@
-/*
-Copyright 2012 Jun Wako <wakojun@gmail.com>
-
-This program is free software: you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation, either version 2 of the License, or
-(at your option) any later version.
-
-This program is distributed in the hope that it will be useful,
-but WITHOUT ANY WARRANTY; without even the implied warranty of
-MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-GNU General Public License for more details.
-
-You should have received a copy of the GNU General Public License
-along with this program.  If not, see <http://www.gnu.org/licenses/>.
-*/
-
-/*
- * scan matrix
- */
-#include <stdint.h>
-#include <stdbool.h>
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include "print.h"
-#include "debug.h"
-#include "util.h"
-#include "matrix.h"
-#include "split_util.h"
-#include "pro_micro.h"
-#include "config.h"
-
-#ifdef USE_I2C
-#  include "i2c.h"
-#else // USE_SERIAL
-#  include "serial.h"
-#endif
-
-#ifndef DEBOUNCE
-#  define DEBOUNCE	5
-#endif
-
-#define ERROR_DISCONNECT_COUNT 5
-
-static uint8_t debouncing = DEBOUNCE;
-static const int ROWS_PER_HAND = MATRIX_ROWS/2;
-static uint8_t error_count = 0;
-
-static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
-static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
-
-/* matrix state(1:on, 0:off) */
-static matrix_row_t matrix[MATRIX_ROWS];
-static matrix_row_t matrix_debouncing[MATRIX_ROWS];
-
-static matrix_row_t read_cols(void);
-static void init_cols(void);
-static void unselect_rows(void);
-static void select_row(uint8_t row);
-
-__attribute__ ((weak))
-void matrix_init_quantum(void) {
-    matrix_init_kb();
-}
-
-__attribute__ ((weak))
-void matrix_scan_quantum(void) {
-    matrix_scan_kb();
-}
-
-__attribute__ ((weak))
-void matrix_init_kb(void) {
-    matrix_init_user();
-}
-
-__attribute__ ((weak))
-void matrix_scan_kb(void) {
-    matrix_scan_user();
-}
-
-__attribute__ ((weak))
-void matrix_init_user(void) {
-}
-
-__attribute__ ((weak))
-void matrix_scan_user(void) {
-}
-
-inline
-uint8_t matrix_rows(void)
-{
-    return MATRIX_ROWS;
-}
-
-inline
-uint8_t matrix_cols(void)
-{
-    return MATRIX_COLS;
-}
-
-void matrix_init(void)
-{
-    debug_enable = true;
-    debug_matrix = true;
-    debug_mouse = true;
-    // initialize row and col
-    unselect_rows();
-    init_cols();
-
-    TX_RX_LED_INIT;
-
-    // initialize matrix state: all keys off
-    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
-        matrix[i] = 0;
-        matrix_debouncing[i] = 0;
-    }
-
-    matrix_init_quantum();
-}
-
-uint8_t _matrix_scan(void)
-{
-    // Right hand is stored after the left in the matirx so, we need to offset it
-    int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
-
-    for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
-        select_row(i);
-        _delay_us(30);  // without this wait read unstable value.
-        matrix_row_t cols = read_cols();
-        if (matrix_debouncing[i+offset] != cols) {
-            matrix_debouncing[i+offset] = cols;
-            debouncing = DEBOUNCE;
-        }
-        unselect_rows();
-    }
-
-    if (debouncing) {
-        if (--debouncing) {
-            _delay_ms(1);
-        } else {
-            for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
-                matrix[i+offset] = matrix_debouncing[i+offset];
-            }
-        }
-    }
-
-    return 1;
-}
-
-#ifdef USE_I2C
-
-// Get rows from other half over i2c
-int i2c_transaction(void) {
-    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-
-    int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
-    if (err) goto i2c_error;
-
-    // start of matrix stored at 0x00
-    err = i2c_master_write(0x00);
-    if (err) goto i2c_error;
-
-    // Start read
-    err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
-    if (err) goto i2c_error;
-
-    if (!err) {
-        int i;
-        for (i = 0; i < ROWS_PER_HAND-1; ++i) {
-            matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
-        }
-        matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
-        i2c_master_stop();
-    } else {
-i2c_error: // the cable is disconnceted, or something else went wrong
-        i2c_reset_state();
-        return err;
-    }
-
-    return 0;
-}
-
-#else // USE_SERIAL
-
-int serial_transaction(void) {
-    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-
-    if (serial_update_buffers()) {
-        return 1;
-    }
-
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        matrix[slaveOffset+i] = serial_slave_buffer[i];
-    }
-    return 0;
-}
-#endif
-
-uint8_t matrix_scan(void)
-{
-    int ret = _matrix_scan();
-
-
-
-#ifdef USE_I2C
-    if( i2c_transaction() ) {
-#else // USE_SERIAL
-    if( serial_transaction() ) {
-#endif
-        // turn on the indicator led when halves are disconnected
-        TXLED1;
-
-        error_count++;
-
-        if (error_count > ERROR_DISCONNECT_COUNT) {
-            // reset other half if disconnected
-            int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
-            for (int i = 0; i < ROWS_PER_HAND; ++i) {
-                matrix[slaveOffset+i] = 0;
-            }
-        }
-    } else {
-        // turn off the indicator led on no error
-        TXLED0;
-        error_count = 0;
-    }
-
-    matrix_scan_quantum();
-
-    return ret;
-}
-
-void matrix_slave_scan(void) {
-    _matrix_scan();
-
-    int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2);
-
-#ifdef USE_I2C
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        /* i2c_slave_buffer[i] = matrix[offset+i]; */
-        i2c_slave_buffer[i] = matrix[offset+i];
-    }
-#else // USE_SERIAL
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        serial_slave_buffer[i] = matrix[offset+i];
-    }
-#endif
-}
-
-bool matrix_is_modified(void)
-{
-    if (debouncing) return false;
-    return true;
-}
-
-inline
-bool matrix_is_on(uint8_t row, uint8_t col)
-{
-    return (matrix[row] & ((matrix_row_t)1<<col));
-}
-
-inline
-matrix_row_t matrix_get_row(uint8_t row)
-{
-    return matrix[row];
-}
-
-void matrix_print(void)
-{
-    print("\nr/c 0123456789ABCDEF\n");
-    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
-        phex(row); print(": ");
-        pbin_reverse16(matrix_get_row(row));
-        print("\n");
-    }
-}
-
-uint8_t matrix_key_count(void)
-{
-    uint8_t count = 0;
-    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
-        count += bitpop16(matrix[i]);
-    }
-    return count;
-}
-
-static void  init_cols(void)
-{
-    for(int x = 0; x < MATRIX_COLS; x++) {
-        _SFR_IO8((col_pins[x] >> 4) + 1) &=  ~_BV(col_pins[x] & 0xF);
-        _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
-    }
-}
-
-static matrix_row_t read_cols(void)
-{
-    matrix_row_t result = 0;
-    for(int x = 0; x < MATRIX_COLS; x++) {
-        result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
-    }
-    return result;
-}
-
-static void unselect_rows(void)
-{
-    for(int x = 0; x < ROWS_PER_HAND; x++) {
-        _SFR_IO8((row_pins[x] >> 4) + 1) &=  ~_BV(row_pins[x] & 0xF);
-        _SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
-    }
-}
-
-static void select_row(uint8_t row)
-{
-    _SFR_IO8((row_pins[row] >> 4) + 1) |=  _BV(row_pins[row] & 0xF);
-    _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
-}
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "split_util.h"
+#include "pro_micro.h"
+#include "config.h"
+
+#ifdef USE_I2C
+#  include "i2c.h"
+#else // USE_SERIAL
+#  include "serial.h"
+#endif
+
+#ifndef DEBOUNCE
+#  define DEBOUNCE	5
+#endif
+
+#define ERROR_DISCONNECT_COUNT 5
+
+static uint8_t debouncing = DEBOUNCE;
+static const int ROWS_PER_HAND = MATRIX_ROWS/2;
+static uint8_t error_count = 0;
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+    matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+    matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+    matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+    matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+    return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+    return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+    debug_enable = true;
+    debug_matrix = true;
+    debug_mouse = true;
+    // initialize row and col
+    unselect_rows();
+    init_cols();
+
+    TX_RX_LED_INIT;
+
+    // initialize matrix state: all keys off
+    for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+        matrix[i] = 0;
+        matrix_debouncing[i] = 0;
+    }
+
+    matrix_init_quantum();
+}
+
+uint8_t _matrix_scan(void)
+{
+    // Right hand is stored after the left in the matirx so, we need to offset it
+    int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
+
+    for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+        select_row(i);
+        _delay_us(30);  // without this wait read unstable value.
+        matrix_row_t cols = read_cols();
+        if (matrix_debouncing[i+offset] != cols) {
+            matrix_debouncing[i+offset] = cols;
+            debouncing = DEBOUNCE;
+        }
+        unselect_rows();
+    }
+
+    if (debouncing) {
+        if (--debouncing) {
+            _delay_ms(1);
+        } else {
+            for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+                matrix[i+offset] = matrix_debouncing[i+offset];
+            }
+        }
+    }
+
+    return 1;
+}
+
+#ifdef USE_I2C
+
+// Get rows from other half over i2c
+int i2c_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
+    if (err) goto i2c_error;
+
+    // start of matrix stored at 0x00
+    err = i2c_master_write(0x00);
+    if (err) goto i2c_error;
+
+    // Start read
+    err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
+    if (err) goto i2c_error;
+
+    if (!err) {
+        int i;
+        for (i = 0; i < ROWS_PER_HAND-1; ++i) {
+            matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
+        }
+        matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
+        i2c_master_stop();
+    } else {
+i2c_error: // the cable is disconnceted, or something else went wrong
+        i2c_reset_state();
+        return err;
+    }
+
+    return 0;
+}
+
+#else // USE_SERIAL
+
+int serial_transaction(void) {
+    int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+    if (serial_update_buffers()) {
+        return 1;
+    }
+
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        matrix[slaveOffset+i] = serial_slave_buffer[i];
+    }
+    return 0;
+}
+#endif
+
+uint8_t matrix_scan(void)
+{
+    int ret = _matrix_scan();
+
+
+
+#ifdef USE_I2C
+    if( i2c_transaction() ) {
+#else // USE_SERIAL
+    if( serial_transaction() ) {
+#endif
+        // turn on the indicator led when halves are disconnected
+        TXLED1;
+
+        error_count++;
+
+        if (error_count > ERROR_DISCONNECT_COUNT) {
+            // reset other half if disconnected
+            int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+            for (int i = 0; i < ROWS_PER_HAND; ++i) {
+                matrix[slaveOffset+i] = 0;
+            }
+        }
+    } else {
+        // turn off the indicator led on no error
+        TXLED0;
+        error_count = 0;
+    }
+
+    matrix_scan_quantum();
+
+    return ret;
+}
+
+void matrix_slave_scan(void) {
+    _matrix_scan();
+
+    int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2);
+
+#ifdef USE_I2C
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        /* i2c_slave_buffer[i] = matrix[offset+i]; */
+        i2c_slave_buffer[i] = matrix[offset+i];
+    }
+#else // USE_SERIAL
+    for (int i = 0; i < ROWS_PER_HAND; ++i) {
+        serial_slave_buffer[i] = matrix[offset+i];
+    }
+#endif
+}
+
+bool matrix_is_modified(void)
+{
+    if (debouncing) return false;
+    return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+    return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+    return matrix[row];
+}
+
+void matrix_print(void)
+{
+    print("\nr/c 0123456789ABCDEF\n");
+    for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+        phex(row); print(": ");
+        pbin_reverse16(matrix_get_row(row));
+        print("\n");
+    }
+}
+
+uint8_t matrix_key_count(void)
+{
+    uint8_t count = 0;
+    for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+        count += bitpop16(matrix[i]);
+    }
+    return count;
+}
+
+static void  init_cols(void)
+{
+    for(int x = 0; x < MATRIX_COLS; x++) {
+        _SFR_IO8((col_pins[x] >> 4) + 1) &=  ~_BV(col_pins[x] & 0xF);
+        _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
+    }
+}
+
+static matrix_row_t read_cols(void)
+{
+    matrix_row_t result = 0;
+    for(int x = 0; x < MATRIX_COLS; x++) {
+        result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
+    }
+    return result;
+}
+
+static void unselect_rows(void)
+{
+    for(int x = 0; x < ROWS_PER_HAND; x++) {
+        _SFR_IO8((row_pins[x] >> 4) + 1) &=  ~_BV(row_pins[x] & 0xF);
+        _SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
+    }
+}
+
+static void select_row(uint8_t row)
+{
+    _SFR_IO8((row_pins[row] >> 4) + 1) |=  _BV(row_pins[row] & 0xF);
+    _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
+}
diff --git a/keyboards/deltasplit75/serial.c b/keyboards/deltasplit75/serial.c
index 898ef7d426..6faed09ce0 100644
--- a/keyboards/deltasplit75/serial.c
+++ b/keyboards/deltasplit75/serial.c
@@ -1,228 +1,228 @@
-/*
- * WARNING: be careful changing this code, it is very timing dependent
- */
-
-#ifndef F_CPU
-#define F_CPU 16000000
-#endif
-
-#include <avr/io.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <stdbool.h>
-#include "serial.h"
-
-#ifdef USE_SERIAL
-
-// Serial pulse period in microseconds. Its probably a bad idea to lower this
-// value.
-#define SERIAL_DELAY 24
-
-uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
-uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
-
-#define SLAVE_DATA_CORRUPT (1<<0)
-volatile uint8_t status = 0;
-
-inline static
-void serial_delay(void) {
-  _delay_us(SERIAL_DELAY);
-}
-
-inline static
-void serial_output(void) {
-  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
-}
-
-// make the serial pin an input with pull-up resistor
-inline static
-void serial_input(void) {
-  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
-}
-
-inline static
-uint8_t serial_read_pin(void) {
-  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
-}
-
-inline static
-void serial_low(void) {
-  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
-}
-
-inline static
-void serial_high(void) {
-  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
-}
-
-void serial_master_init(void) {
-  serial_output();
-  serial_high();
-}
-
-void serial_slave_init(void) {
-  serial_input();
-
-  // Enable INT0
-  EIMSK |= _BV(INT0);
-  // Trigger on falling edge of INT0
-  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
-}
-
-// Used by the master to synchronize timing with the slave.
-static
-void sync_recv(void) {
-  serial_input();
-  // This shouldn't hang if the slave disconnects because the
-  // serial line will float to high if the slave does disconnect.
-  while (!serial_read_pin());
-  serial_delay();
-}
-
-// Used by the slave to send a synchronization signal to the master.
-static
-void sync_send(void) {
-  serial_output();
-
-  serial_low();
-  serial_delay();
-
-  serial_high();
-}
-
-// Reads a byte from the serial line
-static
-uint8_t serial_read_byte(void) {
-  uint8_t byte = 0;
-  serial_input();
-  for ( uint8_t i = 0; i < 8; ++i) {
-    byte = (byte << 1) | serial_read_pin();
-    serial_delay();
-    _delay_us(1);
-  }
-
-  return byte;
-}
-
-// Sends a byte with MSB ordering
-static
-void serial_write_byte(uint8_t data) {
-  uint8_t b = 8;
-  serial_output();
-  while( b-- ) {
-    if(data & (1 << b)) {
-      serial_high();
-    } else {
-      serial_low();
-    }
-    serial_delay();
-  }
-}
-
-// interrupt handle to be used by the slave device
-ISR(SERIAL_PIN_INTERRUPT) {
-  sync_send();
-
-  uint8_t checksum = 0;
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
-    serial_write_byte(serial_slave_buffer[i]);
-    sync_send();
-    checksum += serial_slave_buffer[i];
-  }
-  serial_write_byte(checksum);
-  sync_send();
-
-  // wait for the sync to finish sending
-  serial_delay();
-
-  // read the middle of pulses
-  _delay_us(SERIAL_DELAY/2);
-
-  uint8_t checksum_computed = 0;
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
-    serial_master_buffer[i] = serial_read_byte();
-    sync_send();
-    checksum_computed += serial_master_buffer[i];
-  }
-  uint8_t checksum_received = serial_read_byte();
-  sync_send();
-
-  serial_input(); // end transaction
-
-  if ( checksum_computed != checksum_received ) {
-    status |= SLAVE_DATA_CORRUPT;
-  } else {
-    status &= ~SLAVE_DATA_CORRUPT;
-  }
-}
-
-inline
-bool serial_slave_DATA_CORRUPT(void) {
-  return status & SLAVE_DATA_CORRUPT;
-}
-
-// Copies the serial_slave_buffer to the master and sends the
-// serial_master_buffer to the slave.
-//
-// Returns:
-// 0 => no error
-// 1 => slave did not respond
-int serial_update_buffers(void) {
-  // this code is very time dependent, so we need to disable interrupts
-  cli();
-
-  // signal to the slave that we want to start a transaction
-  serial_output();
-  serial_low();
-  _delay_us(1);
-
-  // wait for the slaves response
-  serial_input();
-  serial_high();
-  _delay_us(SERIAL_DELAY);
-
-  // check if the slave is present
-  if (serial_read_pin()) {
-    // slave failed to pull the line low, assume not present
-    sei();
-    return 1;
-  }
-
-  // if the slave is present syncronize with it
-  sync_recv();
-
-  uint8_t checksum_computed = 0;
-  // receive data from the slave
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
-    serial_slave_buffer[i] = serial_read_byte();
-    sync_recv();
-    checksum_computed += serial_slave_buffer[i];
-  }
-  uint8_t checksum_received = serial_read_byte();
-  sync_recv();
-
-  if (checksum_computed != checksum_received) {
-    sei();
-    return 1;
-  }
-
-  uint8_t checksum = 0;
-  // send data to the slave
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
-    serial_write_byte(serial_master_buffer[i]);
-    sync_recv();
-    checksum += serial_master_buffer[i];
-  }
-  serial_write_byte(checksum);
-  sync_recv();
-
-  // always, release the line when not in use
-  serial_output();
-  serial_high();
-
-  sei();
-  return 0;
-}
-
-#endif
+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#ifndef F_CPU
+#define F_CPU 16000000
+#endif
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>
+#include "serial.h"
+
+#ifdef USE_SERIAL
+
+// Serial pulse period in microseconds. Its probably a bad idea to lower this
+// value.
+#define SERIAL_DELAY 24
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+
+#define SLAVE_DATA_CORRUPT (1<<0)
+volatile uint8_t status = 0;
+
+inline static
+void serial_delay(void) {
+  _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_output(void) {
+  SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+// make the serial pin an input with pull-up resistor
+inline static
+void serial_input(void) {
+  SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+uint8_t serial_read_pin(void) {
+  return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
+}
+
+inline static
+void serial_low(void) {
+  SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_high(void) {
+  SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+void serial_master_init(void) {
+  serial_output();
+  serial_high();
+}
+
+void serial_slave_init(void) {
+  serial_input();
+
+  // Enable INT0
+  EIMSK |= _BV(INT0);
+  // Trigger on falling edge of INT0
+  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
+}
+
+// Used by the master to synchronize timing with the slave.
+static
+void sync_recv(void) {
+  serial_input();
+  // This shouldn't hang if the slave disconnects because the
+  // serial line will float to high if the slave does disconnect.
+  while (!serial_read_pin());
+  serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static
+void sync_send(void) {
+  serial_output();
+
+  serial_low();
+  serial_delay();
+
+  serial_high();
+}
+
+// Reads a byte from the serial line
+static
+uint8_t serial_read_byte(void) {
+  uint8_t byte = 0;
+  serial_input();
+  for ( uint8_t i = 0; i < 8; ++i) {
+    byte = (byte << 1) | serial_read_pin();
+    serial_delay();
+    _delay_us(1);
+  }
+
+  return byte;
+}
+
+// Sends a byte with MSB ordering
+static
+void serial_write_byte(uint8_t data) {
+  uint8_t b = 8;
+  serial_output();
+  while( b-- ) {
+    if(data & (1 << b)) {
+      serial_high();
+    } else {
+      serial_low();
+    }
+    serial_delay();
+  }
+}
+
+// interrupt handle to be used by the slave device
+ISR(SERIAL_PIN_INTERRUPT) {
+  sync_send();
+
+  uint8_t checksum = 0;
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_slave_buffer[i]);
+    sync_send();
+    checksum += serial_slave_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_send();
+
+  // wait for the sync to finish sending
+  serial_delay();
+
+  // read the middle of pulses
+  _delay_us(SERIAL_DELAY/2);
+
+  uint8_t checksum_computed = 0;
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_master_buffer[i] = serial_read_byte();
+    sync_send();
+    checksum_computed += serial_master_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_send();
+
+  serial_input(); // end transaction
+
+  if ( checksum_computed != checksum_received ) {
+    status |= SLAVE_DATA_CORRUPT;
+  } else {
+    status &= ~SLAVE_DATA_CORRUPT;
+  }
+}
+
+inline
+bool serial_slave_DATA_CORRUPT(void) {
+  return status & SLAVE_DATA_CORRUPT;
+}
+
+// Copies the serial_slave_buffer to the master and sends the
+// serial_master_buffer to the slave.
+//
+// Returns:
+// 0 => no error
+// 1 => slave did not respond
+int serial_update_buffers(void) {
+  // this code is very time dependent, so we need to disable interrupts
+  cli();
+
+  // signal to the slave that we want to start a transaction
+  serial_output();
+  serial_low();
+  _delay_us(1);
+
+  // wait for the slaves response
+  serial_input();
+  serial_high();
+  _delay_us(SERIAL_DELAY);
+
+  // check if the slave is present
+  if (serial_read_pin()) {
+    // slave failed to pull the line low, assume not present
+    sei();
+    return 1;
+  }
+
+  // if the slave is present syncronize with it
+  sync_recv();
+
+  uint8_t checksum_computed = 0;
+  // receive data from the slave
+  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+    serial_slave_buffer[i] = serial_read_byte();
+    sync_recv();
+    checksum_computed += serial_slave_buffer[i];
+  }
+  uint8_t checksum_received = serial_read_byte();
+  sync_recv();
+
+  if (checksum_computed != checksum_received) {
+    sei();
+    return 1;
+  }
+
+  uint8_t checksum = 0;
+  // send data to the slave
+  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+    serial_write_byte(serial_master_buffer[i]);
+    sync_recv();
+    checksum += serial_master_buffer[i];
+  }
+  serial_write_byte(checksum);
+  sync_recv();
+
+  // always, release the line when not in use
+  serial_output();
+  serial_high();
+
+  sei();
+  return 0;
+}
+
+#endif
diff --git a/keyboards/deltasplit75/serial.h b/keyboards/deltasplit75/serial.h
index ab2ea0a096..6ef52019a8 100644
--- a/keyboards/deltasplit75/serial.h
+++ b/keyboards/deltasplit75/serial.h
@@ -1,26 +1,26 @@
-#ifndef MY_SERIAL_H
-#define MY_SERIAL_H
-
-#include "config.h"
-#include <stdbool.h>
-
-/* TODO:  some defines for interrupt setup */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD0)
-#define SERIAL_PIN_INTERRUPT INT0_vect
-
-#define SERIAL_SLAVE_BUFFER_LENGTH ((MATRIX_COLS+7)/8 *MATRIX_ROWS/2)
-#define SERIAL_MASTER_BUFFER_LENGTH 1
-
-// Buffers for master - slave communication
-extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
-extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
-
-void serial_master_init(void);
-void serial_slave_init(void);
-int serial_update_buffers(void);
-bool serial_slave_data_corrupt(void);
-
-#endif
+#ifndef MY_SERIAL_H
+#define MY_SERIAL_H
+
+#include "config.h"
+#include <stdbool.h>
+
+/* TODO:  some defines for interrupt setup */
+#define SERIAL_PIN_DDR DDRD
+#define SERIAL_PIN_PORT PORTD
+#define SERIAL_PIN_INPUT PIND
+#define SERIAL_PIN_MASK _BV(PD0)
+#define SERIAL_PIN_INTERRUPT INT0_vect
+
+#define SERIAL_SLAVE_BUFFER_LENGTH ((MATRIX_COLS+7)/8 *MATRIX_ROWS/2)
+#define SERIAL_MASTER_BUFFER_LENGTH 1
+
+// Buffers for master - slave communication
+extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+
+void serial_master_init(void);
+void serial_slave_init(void);
+int serial_update_buffers(void);
+bool serial_slave_data_corrupt(void);
+
+#endif
diff --git a/keyboards/deltasplit75/split_util.c b/keyboards/deltasplit75/split_util.c
index a636f60dbf..226dc18816 100644
--- a/keyboards/deltasplit75/split_util.c
+++ b/keyboards/deltasplit75/split_util.c
@@ -1,81 +1,81 @@
-#include <avr/io.h>
-#include <avr/wdt.h>
-#include <avr/power.h>
-#include <avr/interrupt.h>
-#include <util/delay.h>
-#include <avr/eeprom.h>
-#include "split_util.h"
-#include "matrix.h"
-#include "keyboard.h"
-#include "config.h"
-
-#ifdef USE_I2C
-#  include "i2c.h"
-#else
-#  include "serial.h"
-#endif
-
-volatile bool isLeftHand = true;
-
-static void setup_handedness(void) {
-  #ifdef EE_HANDS
-    isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
-  #else
-    // I2C_MASTER_RIGHT is deprecated use MASTER_RIGHT instead since this works for both serial and i2c
-    #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
-      isLeftHand = !has_usb();
-    #else
-      isLeftHand = has_usb();
-    #endif
-  #endif
-}
-
-static void keyboard_master_setup(void) {
-#ifdef USE_I2C
-    i2c_master_init();
-#else
-    serial_master_init();
-#endif
-}
-
-static void keyboard_slave_setup(void) {
-#ifdef USE_I2C
-    i2c_slave_init(SLAVE_I2C_ADDRESS);
-#else
-    serial_slave_init();
-#endif
-}
-
-bool has_usb(void) {
-   USBCON |= (1 << OTGPADE); //enables VBUS pad
-   _delay_us(5);
-   return (USBSTA & (1<<VBUS));  //checks state of VBUS
-}
-
-void split_keyboard_setup(void) {
-   setup_handedness();
-
-   if (has_usb()) {
-      keyboard_master_setup();
-   } else {
-      keyboard_slave_setup();
-   }
-   sei();
-}
-
-void keyboard_slave_loop(void) {
-   matrix_init();
-
-   while (1) {
-      matrix_slave_scan();
-   }
-}
-
-// this code runs before the usb and keyboard is initialized
-void matrix_setup(void) {
-    split_keyboard_setup();
-
-    if (!has_usb()) {
-        keyboard_slave_loop();
-    }
-}
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "keyboard.h"
+#include "config.h"
+
+#ifdef USE_I2C
+#  include "i2c.h"
+#else
+#  include "serial.h"
+#endif
+
+volatile bool isLeftHand = true;
+
+static void setup_handedness(void) {
+  #ifdef EE_HANDS
+    isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+  #else
+    // I2C_MASTER_RIGHT is deprecated use MASTER_RIGHT instead since this works for both serial and i2c
+    #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
+      isLeftHand = !has_usb();
+    #else
+      isLeftHand = has_usb();
+    #endif
+  #endif
+}
+
+static void keyboard_master_setup(void) {
+#ifdef USE_I2C
+    i2c_master_init();
+#else
+    serial_master_init();
+#endif
+}
+
+static void keyboard_slave_setup(void) {
+#ifdef USE_I2C
+    i2c_slave_init(SLAVE_I2C_ADDRESS);
+#else
+    serial_slave_init();
+#endif
+}
+
+bool has_usb(void) {
+   USBCON |= (1 << OTGPADE); //enables VBUS pad
+   _delay_us(5);
+   return (USBSTA & (1<<VBUS));  //checks state of VBUS
+}
+
+void split_keyboard_setup(void) {
+   setup_handedness();
+
+   if (has_usb()) {
+      keyboard_master_setup();
+   } else {
+      keyboard_slave_setup();
+   }
+   sei();
+}
+
+void keyboard_slave_loop(void) {
+   matrix_init();
+
+   while (1) {
+      matrix_slave_scan();
+   }
+}
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+    split_keyboard_setup();
+
+    if (!has_usb()) {
+        keyboard_slave_loop();
+    }
+}
diff --git a/keyboards/deltasplit75/split_util.h b/keyboards/deltasplit75/split_util.h
index a1b0447bbd..6b896679ca 100644
--- a/keyboards/deltasplit75/split_util.h
+++ b/keyboards/deltasplit75/split_util.h
@@ -1,22 +1,22 @@
-#ifndef SPLIT_KEYBOARD_UTIL_H
-#define SPLIT_KEYBOARD_UTIL_H
-
-#include <stdbool.h>
-
-#ifdef EE_HANDS
-	#define EECONFIG_BOOTMAGIC_END      (uint8_t *)10
-	#define EECONFIG_HANDEDNESS         EECONFIG_BOOTMAGIC_END
-#endif
-
-#define SLAVE_I2C_ADDRESS           0x32
-
-extern volatile bool isLeftHand;
-
-// slave version of matix scan, defined in matrix.c
-void matrix_slave_scan(void);
-
-void split_keyboard_setup(void);
-bool has_usb(void);
-void keyboard_slave_loop(void);
-
-#endif
+#ifndef SPLIT_KEYBOARD_UTIL_H
+#define SPLIT_KEYBOARD_UTIL_H
+
+#include <stdbool.h>
+
+#ifdef EE_HANDS
+	#define EECONFIG_BOOTMAGIC_END      (uint8_t *)10
+	#define EECONFIG_HANDEDNESS         EECONFIG_BOOTMAGIC_END
+#endif
+
+#define SLAVE_I2C_ADDRESS           0x32
+
+extern volatile bool isLeftHand;
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+void split_keyboard_setup(void);
+bool has_usb(void);
+void keyboard_slave_loop(void);
+
+#endif

From 088dfb7db5b62831570c20f7e438ba0f0a612b74 Mon Sep 17 00:00:00 2001
From: Fabian Topfstedt <topfstedt@schneevonmorgen.com>
Date: Thu, 3 Aug 2017 21:05:09 +0200
Subject: [PATCH 15/15] added a clone of my lets split grid layout on a re75

---
 keyboards/xd75/keymaps/fabian/Makefile |  37 ++++
 keyboards/xd75/keymaps/fabian/config.h |  24 +++
 keyboards/xd75/keymaps/fabian/keymap.c | 237 +++++++++++++++++++++++++
 3 files changed, 298 insertions(+)
 create mode 100644 keyboards/xd75/keymaps/fabian/Makefile
 create mode 100644 keyboards/xd75/keymaps/fabian/config.h
 create mode 100644 keyboards/xd75/keymaps/fabian/keymap.c

diff --git a/keyboards/xd75/keymaps/fabian/Makefile b/keyboards/xd75/keymaps/fabian/Makefile
new file mode 100644
index 0000000000..6e8941fdfd
--- /dev/null
+++ b/keyboards/xd75/keymaps/fabian/Makefile
@@ -0,0 +1,37 @@
+# Copyright 2013 Jun Wako <wakojun@gmail.com>
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+
+# QMK Build Options
+#   change to "no" to disable the options, or define them in the Makefile in 
+#   the appropriate keymap folder that will get included automatically
+#
+BOOTMAGIC_ENABLE = yes       # Virtual DIP switch configuration(+1000)
+MOUSEKEY_ENABLE = yes       # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = yes        # Commands for debug and configuration
+NKRO_ENABLE = yes           # Nkey Rollover - if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+MIDI_ENABLE = no            # MIDI support (+2400 to 4200, depending on config)
+AUDIO_ENABLE = no           # Audio output on port C6
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = yes        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
diff --git a/keyboards/xd75/keymaps/fabian/config.h b/keyboards/xd75/keymaps/fabian/config.h
new file mode 100644
index 0000000000..f52a97bbc8
--- /dev/null
+++ b/keyboards/xd75/keymaps/fabian/config.h
@@ -0,0 +1,24 @@
+/* Copyright 2017 REPLACE_WITH_YOUR_NAME
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+// place overrides here
+
+#endif
diff --git a/keyboards/xd75/keymaps/fabian/keymap.c b/keyboards/xd75/keymaps/fabian/keymap.c
new file mode 100644
index 0000000000..f6cc95ba28
--- /dev/null
+++ b/keyboards/xd75/keymaps/fabian/keymap.c
@@ -0,0 +1,237 @@
+#include "xd75.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_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 _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  LOWER,
+  RAISE,
+  ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Custom
+#define CTL_ESC CTL_T(KC_ESC)  // Tap for Escape, hold for Control
+#define SFT_ENT SFT_T(KC_ENT)  // Tap for Enter, hold for Shift
+#define SFT_BSP SFT_T(KC_BSPC) // Tap for Backspace, hold for Shift
+#define HPR_TAB ALL_T(KC_TAB)  // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+// #define MEH_GRV MEH_T(KC_GRV)  // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |      |      |      |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Esc  |   A  |   S  |   D  |   F  |   G  |      |      |      |   H  |   J  |   K  |   L  |   ;  |  "   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |      |      |      |   N  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |      |      |      | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_QWERTY] = {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { HPR_TAB, KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,    _______, _______, _______, KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSPC },
+  { CTL_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,    _______, _______, _______, KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT },
+  { SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    _______, _______, _______, KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT },
+  { ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  _______, _______, _______, SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST  },
+},
+
+/* Colemak
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Tab  |   Q  |   W  |   F  |   P  |   G  |      |      |      |   J  |   L  |   U  |   Y  |   ;  | Bksp |
+ * |------+------+------+------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc  |   A  |   R  |   S  |   T  |   D  |      |      |      |   H  |   N  |   E  |   I  |   O  |  "   |
+ * |------+------+------+------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |      |      |      |   K  |   M  |   ,  |   .  |   /  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |      |      |      | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { HPR_TAB, KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,    _______, _______, _______, KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSPC },
+  { CTL_ESC, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,    _______, _______, _______, KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_QUOT },
+  { SFT_BSP, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    _______, _______, _______, KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, SFT_ENT },
+  { ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  _______, _______, _______, SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST  },
+},
+
+/* Dvorak
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Tab  |   "  |   ,  |   .  |   P  |   Y  |      |      |      |   F  |   G  |   C  |   R  |   L  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | Esc  |   A  |   O  |   E  |   U  |   I  |      |      |      |   D  |   H  |   T  |   N  |   S  |  /   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------+------|
+ * | Shift|   ;  |   Q  |   J  |   K  |   X  |      |      |      |   B  |   M  |   W  |   V  |   Z  |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt  | GUI  |Lower |Space |      |      |      | Bksp |Raise | GUI  |AltGr | Ctrl |Adjust|
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_DVORAK] = {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },  
+  { HPR_TAB, KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,    _______, _______, _______, KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSPC },
+  { CTL_ESC, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,    _______, _______, _______, KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_SLSH },
+  { SFT_BSP, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    _______, _______, _______, KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    SFT_ENT },
+  { ADJUST,  KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  _______, _______, _______, SFT_BSP, RAISE,   KC_RGUI, KC_RALT, KC_RCTL, ADJUST  },
+},
+
+/* Lower
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |   ~  |   !  |   @  |   #  |   $  |   %  |      |      |      |   ^  |   &  |   *  |   (  |   )  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |      |      |      |  F6  |   _  |   +  |   {  |   }  |  |   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |      |  F12 | MS L | MS D |MS U  | MS R |MS Btn|
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `--------------------------------------------------------------------------------------------------------'
+  */
+[_LOWER] = {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { 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_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   _______, _______, _______, KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE },
+  { _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, _______, KC_F12,  KC_MS_L, KC_MS_D, KC_MS_U, KC_MS_R, KC_BTN1 },
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY },
+},
+
+/* Raise
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |   `  |   1  |   2  |   3  |   4  |   5  |      |      |      |   6  |   7  |   8  |   9  |   0  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------+------+------+------|
+ * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |      |      |      |  F6  |   -  |   =  |   [  |   ]  |  \   |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |      |  F12 | Left | Down |  Up  | Rght |MS_BN2|
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_RAISE] = {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { 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_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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_BTN2 },
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY },
+},
+
+/* Adjust (Lower + Raise)
+ * ,--------------------------------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |Reset |      |Aud on|Audoff|AGnorm|      |      |      |AGswap|Qwerty|Colemk|Dvorak|Reset | Del  |
+ * |------+------+------+------+------+------|------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+ * `--------------------------------------------------------------------------------------------------------'
+ */
+[_ADJUST] =  {
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { _______, RESET,   _______, AU_ON,   AU_OFF,  AG_NORM, _______, _______, _______, AG_SWAP, QWERTY,  COLEMAK, DVORAK,  RESET,   KC_DEL  },
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+  { _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ },
+},
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+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
+        persistent_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
+        persistent_default_layer_set(1UL<<_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+        #endif
+        persistent_default_layer_set(1UL<<_DVORAK);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}