Merge branch 'master' of https://github.com/qmk/qmk_firmware

62 files changed, 2882 insertions, 478 deletions

diff --git a/keyboards/helix/pico/config.h b/keyboards/helix/pico/config.h
index b49f0173b4..b8822e2273 100644
--- a/keyboards/helix/pico/config.h
+++ b/keyboards/helix/pico/config.h
@@ -28,7 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     A split keyboard for the cheap makers
 
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 
@@ -84,10 +83,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-#define RGBLIGHT_TIMER
+
 //#define RGBLED_NUM 12    // Number of LEDs. see ./keymaps/default/config.h
-#define ws2812_PORTREG  PORTD
-#define ws2812_DDRREG   DDRD
 
 // Helix keyboard RGB LED support
 //#define RGBLIGHT_ANIMATIONS : see ./rules.mk: LED_ANIMATIONS = yes or no
diff --git a/keyboards/helix/pico/keymaps/biacco/config.h b/keyboards/helix/pico/keymaps/biacco/config.h
new file mode 100644
index 0000000000..7653185198
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/biacco/config.h
@@ -0,0 +1,43 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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/>.
+*/
+
+#pragma once
+
+// place overrides here
+
+#ifdef AUDIO_ENABLE
+  #define STARTUP_SONG SONG(STARTUP_SOUND)
+  #define AUDIO_CLICKY
+#endif
+
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
diff --git a/keyboards/helix/pico/keymaps/biacco/keymap.c b/keyboards/helix/pico/keymaps/biacco/keymap.c
new file mode 100644
index 0000000000..b4ee4fcaa9
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/biacco/keymap.c
@@ -0,0 +1,118 @@
+#include QMK_KEYBOARD_H
+#include "bootloader.h"
+#ifdef PROTOCOL_LUFA
+#include "lufa.h"
+#include "split_util.h"
+#endif
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#ifdef SSD1306OLED
+  #include "ssd1306.h"
+#endif
+
+extern keymap_config_t keymap_config;
+
+#ifdef RGBLIGHT_ENABLE
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+#endif
+
+extern uint8_t is_master;
+
+// 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.
+enum layer_number {
+    BASE = 0,
+    META,
+    SYMB,
+    GAME
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+//Macros
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* Qwerty
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | Tab  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  |  @   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Alt  |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |   ;  |  :   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   B  |             |   N  |   M  |   ,  |   .  |   /  |\/Sft |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * | Ctrl | GUI  | App  | PrtSc| ESC/ |Space/|Tab/  |Back  |Enter/| Del  |PrtSc |=>GAME|=>SYMB|  \   |
+   * |      |      |      |      | ~SYMB|RCtrl |Shift |Space |~META |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+
+[BASE] = LAYOUT( \
+      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,             KC_T,                                     KC_Y,             KC_U,    KC_I,    KC_O,     KC_P,       KC_LBRC, \
+      KC_LALT, 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_T(KC_RO) , \
+      KC_LCTL, KC_LGUI, KC_APP,  KC_PSCR, LT(SYMB, KC_ESC), RCTL_T(KC_SPC), SFT_T(KC_TAB),  KC_BSPC,  LT(META, KC_ENT), KC_DELT, KC_PSCR, TG(GAME), TG(SYMB),   KC_JYEN \
+      ),
+
+  /* META
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   1  |   2  |   3  |   4  |   5  |   6  |             |   7  |   8  |   9  |   0  |   -  |  ^   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Alt  |  F1  |      |Muhen | Henk |      |             | Left | Down |  Up  |Right |      |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Sft  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  | F10  | F11  |\/Sft |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * | Ctrl | GUI  |  App |PrtSc |ESC/  |Space/|Tab/  |Back  |Enter/| Del  |Reset |=>GAME|=>SYMB|  \   |
+   * |      |      |      |      |~SYMB |RCtrl |Shift |Space |~META |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [META] = LAYOUT( \
+    KC_1,    KC_2,    KC_3,    KC_4,    KC_5,    KC_6,                      KC_7,    KC_8,    KC_9,  KC_0,    KC_MINS, KC_EQL, \
+    _______, KC_F1,   XXXXXXX, KC_MHEN, KC_HENK, XXXXXXX,                   KC_LEFT, KC_DOWN, KC_UP, KC_RGHT, XXXXXXX, XXXXXXX, \
+    _______, KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                     KC_F7,   KC_F8,   KC_F9, KC_F10,  KC_F11,  SFT_T(KC_RO), \
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET, _______, _______, _______ \
+  ),
+
+  /* SYMB
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   !  |   "  |   #  |   $  |   %  |   &  |             |   '  |   (  |   )  |   ~  |   =  |  ~   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Alt  |      |      |      |      |      |             |   (  |   )  |   {  |   }  |   +  |  *   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Sft  |      |      |      |      |      |             |   [  |   ]  |   <  |   >  |   ?  |  \   |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * | Ctrl | GUI  |  App |PrtSc |ESC/  |Space/|Tab/  |Back  |Enter/| Del  |PrtSc |=>GAME|=>SYMB|  \   |
+   * |      |      |      |      |~SYMB |RCtrl |Shift |Space |~META |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [SYMB] = LAYOUT( \
+    S(KC_1), S(KC_2), S(KC_3), S(KC_4), S(KC_5), S(KC_6),                   S(KC_7), S(KC_8), S(KC_9),    S(KC_0),    S(KC_MINS), S(KC_EQL), \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   S(KC_8), S(KC_9), S(KC_RBRC), S(KC_BSLS), S(KC_SCLN), S(KC_QUOT), \
+    _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   KC_RBRC, KC_BSLS, S(KC_COMM), S(KC_DOT),  S(KC_SLSH), S(KC_RO), \
+    _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,    _______,   _______,    _______ \
+  ),
+
+  /* GAME
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | Tab  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  |  @   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Alt  |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |   ;  |  :   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Sft  |   Z  |   X  |   C  |   V  |   B  |             |   N  |   M  |   ,  |   .  |   /  |\/Sft |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * | Ctrl | GUI  |  App |PrtSc | ESC  |Space |Tab   |Back  |Enter | Del  |PrtSc |=>GAME|=>SYMB|  \   |
+   * |      |      |      |      |      |      |      |Space |      |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [GAME] = LAYOUT( \
+    KC_TAB,   KC_Q,    KC_W,   KC_E,    KC_R,   KC_T,                           KC_Y,   KC_U,    KC_I,     KC_O,    KC_P,    KC_LBRC, \
+    KC_LALT,  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_T(KC_RO), \
+    KC_LCTRL, KC_LGUI, KC_APP, KC_PSCR, KC_ESC, KC_SPC, KC_TAB,     KC_BSPC,    KC_ENT, KC_DELT, KC_PSCR,  _______, _______, KC_JYEN \
+  )
+
+};
diff --git a/keyboards/helix/pico/keymaps/biacco/rules.mk b/keyboards/helix/pico/keymaps/biacco/rules.mk
new file mode 100644
index 0000000000..d6b36580e1
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/biacco/rules.mk
@@ -0,0 +1,125 @@
+
+# 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 = no        # Commands for debug and configuration
+NKRO_ENABLE = no            # 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 controls
+AUDIO_ENABLE = yes           # Audio output on port B5
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
+SWAP_HANDS_ENABLE = no        # Enable one-hand typing
+
+define HELIX_CUSTOMISE_MSG
+  $(info Helix customize)
+  $(info -  OLED_ENABLE=$(OLED_ENABLE))
+  $(info -  LED_BACK_ENABLE=$(LED_BACK_ENABLE))
+  $(info -  LED_UNDERGLOW_ENABLE=$(LED_UNDERGLOW_ENABLE))
+  $(info -  LED_ANIMATION=$(LED_ANIMATIONS))
+  $(info -  IOS_DEVICE_ENABLE=$(IOS_DEVICE_ENABLE))
+endef
+
+# Helix keyboard customize
+# you can edit follows 6 Variables
+#  jp: 以下の6つの変数を必要に応じて編集します。
+OLED_ENABLE = no            # OLED_ENABLE
+LOCAL_GLCDFONT = no         # use each keymaps "helixfont.h" insted of "common/glcdfont.c"
+LED_BACK_ENABLE = no        # LED backlight (Enable WS2812 RGB underlight.)
+LED_UNDERGLOW_ENABLE = no   # LED underglow (Enable WS2812 RGB underlight.)
+LED_ANIMATIONS = no         # LED animations
+IOS_DEVICE_ENABLE = no      # connect to IOS device (iPad,iPhone)
+Link_Time_Optimization = no # if firmware size over limit, try this option
+
+####  LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE.
+####    Do not enable these with audio at the same time.
+
+### Helix keyboard 'default' keymap: convenient command line option
+##    make HELIX=<options> helix:defualt
+##    option= oled | back | under | na | ios
+##    ex.
+##      make HELIX=oled          helix:defualt
+##      make HELIX=oled,back     helix:defualt
+##      make HELIX=oled,under    helix:defualt
+##      make HELIX=oled,back,na  helix:defualt
+##      make HELIX=oled,back,ios helix:defualt
+##
+ifneq ($(strip $(HELIX)),)
+  ifeq ($(findstring oled,$(HELIX)), oled)
+    OLED_ENABLE = yes
+  endif
+  ifeq ($(findstring back,$(HELIX)), back)
+    LED_BACK_ENABLE = yes
+  else ifeq ($(findstring under,$(HELIX)), under)
+    LED_UNDERGLOW_ENABLE = yes
+  endif
+  ifeq ($(findstring na,$(HELIX)), na)
+    LED_ANIMATIONS = no
+  endif
+  ifeq ($(findstring ios,$(HELIX)), ios)
+    IOS_DEVICE_ENABLE = yes
+  endif
+  $(eval $(call HELIX_CUSTOMISE_MSG))
+  $(info )
+endif
+
+# Uncomment these for checking
+#   jp: コンパイル時にカスタマイズの状態を表示したい時はコメントをはずします。
+# $(eval $(call HELIX_CUSTOMISE_MSG))
+# $(info )
+
+ifeq ($(strip $(LED_BACK_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+  OPT_DEFS += -DRGBLED_BACK
+  ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+    $(eval $(call HELIX_CUSTOMISE_MSG))
+    $(error LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE both 'yes')
+  endif
+else ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+else
+  RGBLIGHT_ENABLE = no
+endif
+
+ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
+    OPT_DEFS += -DIOS_DEVICE_ENABLE
+endif
+
+ifeq ($(strip $(LED_ANIMATIONS)), yes)
+    OPT_DEFS += -DLED_ANIMATIONS
+endif
+
+ifeq ($(strip $(OLED_ENABLE)), yes)
+    OPT_DEFS += -DOLED_ENABLE
+endif
+
+ifeq ($(strip $(LOCAL_GLCDFONT)), yes)
+    OPT_DEFS += -DLOCAL_GLCDFONT
+endif
+
+ifeq ($(strip $(AUDIO_ENABLE)),yes)
+  ifeq ($(strip $(RGBLIGHT_ENABLE)),yes)
+    Link_Time_Optimization = yes
+  endif
+  ifeq ($(strip $(OLED_ENABLE)),yes)
+    Link_Time_Optimization = yes
+  endif
+endif
+
+ifeq ($(strip $(Link_Time_Optimization)),yes)
+    EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization
+endif
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+# Uncomment these for debugging
+# $(info -- RGBLIGHT_ENABLE=$(RGBLIGHT_ENABLE))
+# $(info -- OPT_DEFS=$(OPT_DEFS))
+# $(info )
diff --git a/keyboards/helix/pico/keymaps/default/config.h b/keyboards/helix/pico/keymaps/default/config.h
index 6084b0970b..20dfc9f985 100644
--- a/keyboards/helix/pico/keymaps/default/config.h
+++ b/keyboards/helix/pico/keymaps/default/config.h
@@ -28,4 +28,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define AUDIO_CLICKY
 #endif
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/pico/keymaps/default/keymap.c b/keyboards/helix/pico/keymaps/default/keymap.c
index 75221d485a..5273bb4a01 100644
--- a/keyboards/helix/pico/keymaps/default/keymap.c
+++ b/keyboards/helix/pico/keymaps/default/keymap.c
@@ -164,7 +164,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       _______, RESET,   _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
       _______, AU_ON,   AU_OFF,  MU_TOG,  MU_MOD,  AG_NORM,                   AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
       _______, CK_TOGG, CK_RST,  CK_UP,   CK_DOWN, _______,                   _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
-      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD \
       )
 };
 
@@ -238,7 +238,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         } else {
           TOG_STATUS = !TOG_STATUS;
           #ifdef RGBLIGHT_ENABLE
-            //rgblight_mode(16);
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE + 1);
           #endif
         }
         layer_on(_LOWER);
@@ -261,7 +261,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         } else {
           TOG_STATUS = !TOG_STATUS;
           #ifdef RGBLIGHT_ENABLE
-            //rgblight_mode(15);
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE);
           #endif
         }
         layer_on(_RAISE);
diff --git a/keyboards/helix/pico/keymaps/default/rules.mk b/keyboards/helix/pico/keymaps/default/rules.mk
index afb1240685..c5ee8acb2a 100644
--- a/keyboards/helix/pico/keymaps/default/rules.mk
+++ b/keyboards/helix/pico/keymaps/default/rules.mk
@@ -14,7 +14,7 @@ MIDI_ENABLE = no            # MIDI controls
 AUDIO_ENABLE = yes           # Audio output on port B5
 UNICODE_ENABLE = no         # Unicode
 BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
-RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -92,7 +92,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/pico/keymaps/mtei/config.h b/keyboards/helix/pico/keymaps/mtei/config.h
new file mode 100644
index 0000000000..c5812de8d7
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/mtei/config.h
@@ -0,0 +1,52 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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
+
+// place overrides here
+
+#ifdef AUDIO_ENABLE
+  #define STARTUP_SONG SONG(STARTUP_SOUND)
+  #define AUDIO_CLICKY
+#endif
+
+#undef TAPPING_TERM
+#define TAPPING_TERM 300
+#define PERMISSIVE_HOLD
+/* when TAPPING_TERM >= 500 same effect PERMISSIVE_HOLD.
+   see tmk_core/common/action_tapping.c */
+
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   //#define RGBLIGHT_EFFECT_SNAKE
+   //#define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
+#endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/pico/keymaps/mtei/keymap.c b/keyboards/helix/pico/keymaps/mtei/keymap.c
new file mode 100644
index 0000000000..27bf062433
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/mtei/keymap.c
@@ -0,0 +1,496 @@
+#include QMK_KEYBOARD_H
+#include "bootloader.h"
+#ifdef PROTOCOL_LUFA
+#include "lufa.h"
+#include "split_util.h"
+#endif
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#ifdef SSD1306OLED
+  #include "ssd1306.h"
+#endif
+#ifdef CONSOLE_ENABLE
+  #include <print.h>
+#endif
+
+extern keymap_config_t keymap_config;
+
+#ifdef RGBLIGHT_ENABLE
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+#endif
+
+extern uint8_t is_master;
+
+// 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.
+enum layer_number {
+    _QWERTY = 0,
+    _COLEMAK,
+    _DVORAK,
+    _EUCALYN,
+    _NUML,
+    _NUMR,
+    _LOWER,
+    _RAISE,
+    _ADJUST,
+};
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  COLEMAK,
+  DVORAK,
+  EUCALYN,
+  NUML,
+  NUMR,
+  KC_xEISU,
+  KC_xKANA,
+  KC_ZERO2,
+  RGBRST
+};
+
+//Macros
+#define KC_LOWER  MO(_LOWER)
+#define KC_NUML   LT(_NUML,KC_SPC)
+#define KC_NUMR   LT(_NUMR,KC_SPC)
+#define KC_RABS   LT(_RAISE,KC_BSPC)
+#define KC_RAEN   LT(_RAISE,KC_ENT)
+#define KC_____   _______
+#define KC_XXXX   XXXXXXX
+#define KC_ADJ    MO(_ADJUST)
+#define KC_LSMI   LSFT(KC_MINS)
+#define KC_LSEQ   LSFT(KC_EQL)
+#define KC_LSRB   LSFT(KC_RBRC)
+#define KC_LSLB   LSFT(KC_LBRC)
+#define KC_LSGR   LSFT(KC_GRV)
+#define KC_LSQT   LSFT(KC_QUOT)
+#define ___       _______
+#define KC_S0     LSFT(KC_0)
+#define KC_S1     LSFT(KC_1)
+#define KC_S2     LSFT(KC_2)
+#define KC_S3     LSFT(KC_3)
+#define KC_S4     LSFT(KC_4)
+#define KC_S5     LSFT(KC_5)
+#define KC_S6     LSFT(KC_6)
+#define KC_S7     LSFT(KC_7)
+#define KC_S8     LSFT(KC_8)
+#define KC_S9     LSFT(KC_9)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* Qwerty
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | ESC  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  |  \   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Ctrl |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |   ;  | Ctrl |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   B  |             |   N  |   M  |   ,  |   .  |   /  | Shift|
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_QWERTY] = LAYOUT_kc( \
+      ESC,    Q,    W,    E,    R,    T,                  Y,    U,    I,    O,    P,  BSLS, \
+      LCTL,   A,    S,    D,    F,    G,                  H,    J,    K,    L, SCLN,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    B,                  N,    M, COMM,  DOT, SLSH,  RSFT, \
+      LOWER,LOWER, CAPS, LALT, LGUI,NUML, RABS,   RAEN,NUMR, RGUI, RALT,  APP,LOWER,  LOWER \
+      ),
+
+  /* Colemak
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | ESC  |   Q  |   W  |   F  |   P  |   G  |             |   J  |   L  |   U  |   Y  |   ;  | \    |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Ctrl |   A  |   R  |   S  |   T  |   D  |             |   H  |   N  |   E  |   I  |   O  | Ctrl |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   B  |             |   K  |   M  |   ,  |   .  |   /  | Shift|
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_COLEMAK] = LAYOUT_kc( \
+      ESC,    Q,    W,    F,    P,    G,                  J,    L,    U,    Y, SCLN,  BSLS, \
+      LCTL,   A,    R,    S,    T,    D,                  H,    N,    E,    I,    O,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    B,                  K,    M, COMM,  DOT, SLSH,  RSFT, \
+      LOWER,LOWER, CAPS, LALT, LGUI,NUML, RABS,   RAEN,NUMR, RGUI, RALT,  APP,LOWER,  LOWER \
+      ),
+
+  /* Dvorak
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | ESC  |   '  |   ,  |   .  |   P  |   Y  |             |   F  |   G  |   C  |   R  |   L  |  \   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Ctrl |   A  |   O  |   E  |   U  |   I  |             |   D  |   H  |   T  |   N  |   S  | Ctrl |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   ;  |   Q  |   J  |   K  |   X  |             |   B  |   M  |   W  |   V  |   Z  | Shift|
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_DVORAK] = LAYOUT_kc( \
+      ESC, QUOT, COMM,  DOT,    P,    Y,                  F,    G,    C,    R,    L,  BSLS, \
+      LCTL,   A,    O,    E,    U,    I,                  D,    H,    T,    N,    S,  RCTL, \
+      LSFT, SCLN,   Q,    J,    K,    X,                  B,    M,    W,    V,    Z,  RSFT, \
+      LOWER,LOWER, CAPS, LALT, LGUI,NUML, RABS,   RAEN,NUMR, RGUI, RALT,  APP,LOWER,  LOWER \
+      ),
+
+  /* Eucalyn (http://eucalyn.hatenadiary.jp/entry/about-eucalyn-layout)
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | ESC  |   Q  |   W  |   ,  |   .  |   ;  |             |   M  |   R  |   D  |   Y  |   P  |  \   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Ctrl |   A  |   O  |   E  |   I  |   U  |             |   G  |   T  |   K  |   S  |   N  | Ctrl |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   F  |             |   B  |   H  |   J  |   L  |   /  | Shift|
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_EUCALYN] = LAYOUT_kc( \
+      ESC,    Q,    W, COMM,  DOT, SCLN,                  M,    R,    D,    Y,    P,  BSLS, \
+      LCTL,   A,    O,    E,    I,    U,                  G,    T,    K,    S,    N,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    F,                  B,    H,    J,    L, SLSH,  RSFT, \
+      LOWER,LOWER, CAPS, LALT, LGUI,NUML, RABS,   RAEN,NUMR, RGUI, RALT,  APP,LOWER,  LOWER \
+      ),
+
+  /* Num
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |      |   !  |   @  |   #  |   $  |   %  |             |   ^  |   &  |   *  |   (  |   )  |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | F12  |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |  F7  |  F8  |  F9  |  F10 | F11  |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_NUML] = LAYOUT_kc( \
+      ____,   S1,   S2,   S3,   S4,   S5,               S6,   S7,   S8,   S9,   S0, ____, \
+      ____,    1,    2,    3,    4,    5,                6,    7,    8,    9,    0,  F12, \
+      ____,   F1,   F2,   F3,   F4,   F5,               F6,   F7,   F8,   F9,  F10,  F11, \
+      ____, ____, ____, ____, ____, ____, ____, ____,  SPC, ____, ____, ____, ____, ____ \
+      ),
+
+  [_NUMR] = LAYOUT_kc( \
+      ____,   S1,   S2,   S3,   S4,   S5,               S6,   S7,   S8,   S9,   S0, ____, \
+      ____,    1,    2,    3,    4,    5,                6,    7,    8,    9,    0,  F12, \
+      ____,   F1,   F2,   F3,   F4,   F5,               F6,   F7,   F8,   F9,  F10,  F11, \
+      ____, ____, ____, ____, ____,  SPC, ____, ____, ____, ____, ____, ____, ____, ____ \
+      ),
+
+  /* Lower
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |      |      |Pause | ScrLk| Ins  |      |             |      | Ins  | ScrLk|Pause |      |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      | PgUp |      | Up   |Delete| Home |             | Home |Delete| Up   |      | PgUp |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      | PgDn | Left | Down | Right| End  |             | End  | Left | Down | Right| PgDn |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      | PrtSc|      |      |      |Adjust|Adjust|      |      |      | PrtSc|      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_LOWER] = LAYOUT_kc( \
+      XXXX, XXXX, PAUS, SLCK, INS,  XXXX,             XXXX,  INS, SLCK, PAUS, XXXX, ____, \
+      ____, HOME, XXXX, UP,   DEL,  PGUP,             PGUP,  DEL,   UP, XXXX, HOME, ____, \
+      ____, END,  LEFT, DOWN, RGHT, PGDN,             PGDN, LEFT, DOWN, RGHT,  END, ____, \
+      ____, ____, PSCR, ____, ____, ____,  ADJ,  ADJ, ____, ____, ____, PSCR, ____, ____ \
+      ),
+
+  /* Raise
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | TAB  |      |      |      |  _   |  -   |             |  =   |  +   |      |      |      |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | EISU |      |      |      |  {   |  [   |             |  ]   |  }   |      |      |      | KANA |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |      |  ~   |  `   |             |  '   |   "  |      |      |      |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_RAISE] = LAYOUT_kc( \
+       TAB, XXXX, XXXX, XXXX, LSMI, MINS,              EQL, LSEQ, XXXX, XXXX, XXXX, XXXX, \
+     xEISU, XXXX, XXXX, XXXX, LSLB, LBRC,             RBRC, LSRB, XXXX, XXXX, XXXX, xKANA, \
+      XXXX, XXXX, XXXX, XXXX, LSGR,  GRV,             QUOT, LSQT, XXXX, XXXX, XXXX, XXXX, \
+      ADJ,   ADJ, XXXX, ____, ____, XXXX, ____, ____, XXXX, ____, ____, XXXX,  ADJ,  ADJ \
+      ),
+
+  /* Adjust (Lower + Raise)
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |      | Reset|RGBRST|RGB ON|Aud on| Win  |             | Win  |      |Qwerty|Euclyn|Colemk|Dvorak|
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | HUE+ | SAT+ | VAL+ |RGB md|Audoff| Mac  |             | Mac  |      |      |      |      |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | HUE- | SAT- | VAL- |      |      |      |             |      |      |      |      |      |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_ADJUST] =  LAYOUT( \
+      XXXXXXX, RESET,   RGBRST,  RGB_TOG,   AU_ON, AG_SWAP,          AG_SWAP, XXXXXXX, QWERTY,  EUCALYN, COLEMAK,  DVORAK, \
+      RGB_HUI, RGB_SAI, RGB_VAI, RGB_MOD,  AU_OFF, AG_NORM,          AG_NORM, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
+      RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX,          XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
+      _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, ___,___, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______ \
+   )
+};
+
+#ifdef AUDIO_ENABLE
+
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+float tone_plover[][2]     = SONG(PLOVER_SOUND);
+float tone_plover_gb[][2]  = SONG(PLOVER_GOODBYE_SOUND);
+float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
+#endif
+
+static int current_default_layer;
+
+uint32_t default_layer_state_set_kb(uint32_t state) {
+    // 1<<_QWERTY  - 1 == 1 - 1 == _QWERTY (=0)
+    // 1<<_COLEMAK - 1 == 2 - 1 == _COLEMAK (=1)
+    current_default_layer = state - 1;
+    // 1<<_DVORAK  - 2 == 4 - 2 == _DVORAK (=2)
+    if ( current_default_layer == 3 ) current_default_layer -= 1;
+    // 1<<_EUCALYN - 5 == 8 - 5 == _EUCALYN (=3)
+    if ( current_default_layer == 7 ) current_default_layer -= 4;
+    return state;
+}
+
+void update_base_layer(int base)
+{
+    if( current_default_layer != base ) {
+        eeconfig_update_default_layer(1UL<<base);
+        default_layer_set(1UL<<base);
+    }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        update_base_layer(_QWERTY);
+      }
+      return false;
+      break;
+    case COLEMAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_colemak);
+        #endif
+        update_base_layer(_COLEMAK);
+      }
+      return false;
+      break;
+    case DVORAK:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        update_base_layer(_DVORAK);
+      }
+      return false;
+      break;
+    case EUCALYN:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        update_base_layer(_EUCALYN);
+      }
+      return false;
+      break;
+    case KC_xEISU:
+      if (record->event.pressed) {
+        if(keymap_config.swap_lalt_lgui==false){
+          register_code(KC_LANG2);
+        }else{
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG2);
+      }
+      return false;
+      break;
+    case KC_xKANA:
+      if (record->event.pressed) {
+        if(keymap_config.swap_lalt_lgui==false){
+          register_code(KC_LANG1);
+        }else{
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG1);
+      }
+      return false;
+      break;
+    case RGBRST:
+      #ifdef RGBLIGHT_ENABLE
+        if (record->event.pressed) {
+          eeconfig_update_rgblight_default();
+          rgblight_enable();
+        }
+      #endif
+      break;
+  }
+  return true;
+}
+
+void matrix_init_user(void) {
+    #ifdef AUDIO_ENABLE
+        startup_user();
+    #endif
+    //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
+    #ifdef SSD1306OLED
+        iota_gfx_init(!has_usb());   // turns on the display
+    #endif
+}
+
+
+#ifdef AUDIO_ENABLE
+
+void startup_user()
+{
+    _delay_ms(50); // gets rid of tick
+}
+
+void shutdown_user()
+{
+    _delay_ms(150);
+    stop_all_notes();
+}
+
+void music_on_user(void)
+{
+    music_scale_user();
+}
+
+void music_scale_user(void)
+{
+    PLAY_SONG(music_scale);
+}
+
+#endif
+
+
+//SSD1306 OLED update loop, make sure to add #define SSD1306OLED in config.h
+#ifdef SSD1306OLED
+
+void matrix_scan_user(void) {
+     iota_gfx_task();  // this is what updates the display continuously
+}
+
+void matrix_update(struct CharacterMatrix *dest,
+                          const struct CharacterMatrix *source) {
+  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
+    memcpy(dest->display, source->display, sizeof(dest->display));
+    dest->dirty = true;
+  }
+}
+
+static void render_logo(struct CharacterMatrix *matrix) {
+
+  static char logo[]={
+    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,
+    0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
+    0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,
+    0};
+  matrix_write(matrix, logo);
+#if defined(RGBLIGHT_ENABLE) && defined(RGBLIGHT_ANIMATIONS)
+  char buf[30];
+  if(rgblight_config.enable) {
+      snprintf(buf, sizeof(buf), " LED %2d: %d,%d,%d ",
+               rgblight_config.mode,
+               rgblight_config.hue/RGBLIGHT_HUE_STEP,
+               rgblight_config.sat/RGBLIGHT_SAT_STEP,
+               rgblight_config.val/RGBLIGHT_VAL_STEP);
+      matrix_write(matrix, buf);
+  }
+#endif
+  //matrix_write_P(&matrix, PSTR(" Split keyboard kit"));
+}
+
+static const char Qwerty_name[]  PROGMEM = " Qwerty";
+static const char Colemak_name[] PROGMEM = " Colemak";
+static const char Dvorak_name[]  PROGMEM = " Dvorak";
+static const char Eucalyn_name[] PROGMEM = " Eucalyn";
+
+static const char NumL_name[]     PROGMEM = ":NumL";
+static const char NumR_name[]     PROGMEM = ":NumR";
+static const char Lower_name[]   PROGMEM = ":Func";
+static const char Raise_name[]   PROGMEM = ":Extra";
+static const char Adjust_name[]  PROGMEM = ":Adjust";
+
+static const char *layer_names[] = {
+    [_QWERTY]  = Qwerty_name,
+    [_COLEMAK] = Colemak_name,
+    [_DVORAK]  = Dvorak_name,
+    [_EUCALYN] = Eucalyn_name,
+
+    [_NUML]    = NumL_name,
+    [_NUMR]    = NumR_name,
+    [_LOWER]   = Lower_name,
+    [_RAISE]   = Raise_name,
+    [_ADJUST]  = Adjust_name
+};
+
+void render_status(struct CharacterMatrix *matrix) {
+
+  // Render to mode icon
+  static char logo[][2][3]={{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
+  if(keymap_config.swap_lalt_lgui==false){
+    matrix_write(matrix, logo[0][0]);
+    matrix_write_P(matrix, PSTR("\n"));
+    matrix_write(matrix, logo[0][1]);
+  }else{
+    matrix_write(matrix, logo[1][0]);
+    matrix_write_P(matrix, PSTR("\n"));
+    matrix_write(matrix, logo[1][1]);
+  }
+
+  // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
+  int name_num;
+  uint32_t lstate;
+  matrix_write_P(matrix, layer_names[current_default_layer]);
+  matrix_write_P(matrix, PSTR("\n"));
+  for( lstate = layer_state, name_num = 0;
+       lstate && name_num < sizeof(layer_names)/sizeof(char *);
+       lstate >>=1, name_num++ ) {
+      if( (lstate & 1) != 0 ) {
+          if( layer_names[name_num] ) {
+              matrix_write_P(matrix, layer_names[name_num]);
+          }
+      }
+  }
+
+  // Host Keyboard LED Status
+  char led[40];
+    snprintf(led, sizeof(led), "\n%s  %s  %s",
+             (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
+             (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
+             (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
+  matrix_write(matrix, led);
+}
+
+
+void iota_gfx_task_user(void) {
+  struct CharacterMatrix matrix;
+
+#if DEBUG_TO_SCREEN
+  if (debug_enable) {
+    return;
+  }
+#endif
+
+  matrix_clear(&matrix);
+  if(is_master){
+    render_status(&matrix);
+  }else{
+    render_logo(&matrix);
+  }
+  matrix_update(&display, &matrix);
+}
+
+#endif
diff --git a/keyboards/helix/pico/keymaps/mtei/rules.mk b/keyboards/helix/pico/keymaps/mtei/rules.mk
new file mode 100644
index 0000000000..c5ee8acb2a
--- /dev/null
+++ b/keyboards/helix/pico/keymaps/mtei/rules.mk
@@ -0,0 +1,129 @@
+
+# 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 = no        # Commands for debug and configuration
+NKRO_ENABLE = no            # 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 controls
+AUDIO_ENABLE = yes           # Audio output on port B5
+UNICODE_ENABLE = no         # Unicode
+BLUETOOTH_ENABLE = no       # Enable Bluetooth with the Adafruit EZ-Key HID
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
+SWAP_HANDS_ENABLE = no        # Enable one-hand typing
+
+define HELIX_CUSTOMISE_MSG
+  $(info Helix customize)
+  $(info -  OLED_ENABLE=$(OLED_ENABLE))
+  $(info -  LED_BACK_ENABLE=$(LED_BACK_ENABLE))
+  $(info -  LED_UNDERGLOW_ENABLE=$(LED_UNDERGLOW_ENABLE))
+  $(info -  LED_ANIMATION=$(LED_ANIMATIONS))
+  $(info -  IOS_DEVICE_ENABLE=$(IOS_DEVICE_ENABLE))
+endef
+
+# Helix keyboard customize
+# you can edit follows 6 Variables
+#  jp: 以下の6つの変数を必要に応じて編集します。
+OLED_ENABLE = no            # OLED_ENABLE
+LOCAL_GLCDFONT = no         # use each keymaps "helixfont.h" insted of "common/glcdfont.c"
+LED_BACK_ENABLE = no        # LED backlight (Enable WS2812 RGB underlight.)
+LED_UNDERGLOW_ENABLE = no   # LED underglow (Enable WS2812 RGB underlight.)
+LED_ANIMATIONS = yes        # LED animations
+IOS_DEVICE_ENABLE = no      # connect to IOS device (iPad,iPhone)
+Link_Time_Optimization = no # if firmware size over limit, try this option
+
+####  LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE.
+####    Do not enable these with audio at the same time.
+
+### Helix keyboard 'default' keymap: convenient command line option
+##    make HELIX=<options> helix:defualt
+##    option= oled | back | under | na | ios
+##    ex.
+##      make HELIX=oled          helix:defualt
+##      make HELIX=oled,back     helix:defualt
+##      make HELIX=oled,under    helix:defualt
+##      make HELIX=oled,back,na  helix:defualt
+##      make HELIX=oled,back,ios helix:defualt
+##
+ifneq ($(strip $(HELIX)),)
+  ifeq ($(findstring oled,$(HELIX)), oled)
+    OLED_ENABLE = yes
+  endif
+  ifeq ($(findstring back,$(HELIX)), back)
+    LED_BACK_ENABLE = yes
+  else ifeq ($(findstring under,$(HELIX)), under)
+    LED_UNDERGLOW_ENABLE = yes
+  endif
+  ifeq ($(findstring na,$(HELIX)), na)
+    LED_ANIMATIONS = no
+  endif
+  ifeq ($(findstring ios,$(HELIX)), ios)
+    IOS_DEVICE_ENABLE = yes
+  endif
+  $(eval $(call HELIX_CUSTOMISE_MSG))
+  $(info )
+endif
+
+# Uncomment these for checking
+#   jp: コンパイル時にカスタマイズの状態を表示したい時はコメントをはずします。
+# $(eval $(call HELIX_CUSTOMISE_MSG))
+# $(info )
+
+ifeq ($(strip $(LED_BACK_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+  OPT_DEFS += -DRGBLED_BACK
+  ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+    $(eval $(call HELIX_CUSTOMISE_MSG))
+    $(error LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE both 'yes')
+  endif
+else ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+else
+  RGBLIGHT_ENABLE = no
+endif
+
+ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
+    OPT_DEFS += -DIOS_DEVICE_ENABLE
+endif
+
+ifeq ($(strip $(LED_ANIMATIONS)), yes)
+    OPT_DEFS += -DLED_ANIMATIONS
+endif
+
+ifeq ($(strip $(OLED_ENABLE)), yes)
+    OPT_DEFS += -DOLED_ENABLE
+endif
+
+ifeq ($(strip $(LOCAL_GLCDFONT)), yes)
+    OPT_DEFS += -DLOCAL_GLCDFONT
+endif
+
+ifeq ($(strip $(AUDIO_ENABLE)),yes)
+  ifeq ($(strip $(RGBLIGHT_ENABLE)),yes)
+    Link_Time_Optimization = yes
+  endif
+  ifeq ($(strip $(OLED_ENABLE)),yes)
+    Link_Time_Optimization = yes
+  endif
+endif
+
+ifeq ($(strip $(Link_Time_Optimization)),yes)
+    EXTRAFLAGS += -flto -DUSE_Link_Time_Optimization
+endif
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+ifndef QUANTUM_DIR
+	include ../../../../Makefile
+endif
+
+# Uncomment these for debugging
+# $(info -- RGBLIGHT_ENABLE=$(RGBLIGHT_ENABLE))
+# $(info -- OPT_DEFS=$(OPT_DEFS))
+# $(info )
diff --git a/keyboards/helix/pico/pico.c b/keyboards/helix/pico/pico.c
index 5e248ccffe..bb8ba9ca2b 100644
--- a/keyboards/helix/pico/pico.c
+++ b/keyboards/helix/pico/pico.c
@@ -2,6 +2,12 @@
 
 
 #ifdef SSD1306OLED
+#include "ssd1306.h"
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	return process_record_gfx(keycode,record) && process_record_user(keycode, record);
+}
+
 void led_set_kb(uint8_t usb_led) {
     // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
     //led_set_user(usb_led);
diff --git a/keyboards/helix/pico/pico.h b/keyboards/helix/pico/pico.h
index a3d658daa0..153132775b 100644
--- a/keyboards/helix/pico/pico.h
+++ b/keyboards/helix/pico/pico.h
@@ -62,4 +62,18 @@
 	}
 #endif
 
+#define LAYOUT_kc(                                                      \
+    L00, L01, L02, L03, L04, L05,           R00, R01, R02, R03, R04, R05, \
+    L10, L11, L12, L13, L14, L15,           R10, R11, R12, R13, R14, R15, \
+    L20, L21, L22, L23, L24, L25,           R20, R21, R22, R23, R24, R25, \
+    L30, L31, L32, L33, L34, L35, L36, R36, R30, R31, R32, R33, R34, R35 \
+    ) \
+    LAYOUT( \
+      KC_##L00, KC_##L01, KC_##L02, KC_##L03, KC_##L04, KC_##L05, KC_##R00, KC_##R01, KC_##R02, KC_##R03, KC_##R04, KC_##R05, \
+      KC_##L10, KC_##L11, KC_##L12, KC_##L13, KC_##L14, KC_##L15, KC_##R10, KC_##R11, KC_##R12, KC_##R13, KC_##R14, KC_##R15, \
+      KC_##L20, KC_##L21, KC_##L22, KC_##L23, KC_##L24, KC_##L25, KC_##R20, KC_##R21, KC_##R22, KC_##R23, KC_##R24, KC_##R25, \
+      KC_##L30, KC_##L31, KC_##L32, KC_##L33, KC_##L34, KC_##L35, KC_##L36, KC_##R36, KC_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35 \
+    )
+
+
 #endif
diff --git a/keyboards/helix/pico/rules.mk b/keyboards/helix/pico/rules.mk
index c994ac8dea..75bf0a5ef8 100644
--- a/keyboards/helix/pico/rules.mk
+++ b/keyboards/helix/pico/rules.mk
@@ -1,3 +1,2 @@
-SRC += pico/matrix.c \
-	   pico/split_util.c \
-	   ws2812.c
+SRC += pico/matrix.c
+SRC += pico/split_util.c
diff --git a/keyboards/helix/pico/serial_config.h b/keyboards/helix/pico/serial_config.h
index 82c6e4e836..fc8736d472 100644
--- a/keyboards/helix/pico/serial_config.h
+++ b/keyboards/helix/pico/serial_config.h
@@ -1,16 +1,9 @@
-#ifndef SOFT_SERIAL_CONFIG_H
-#define SOFT_SERIAL_CONFIG_H
+//// #error rev2 serial config
 
+#ifndef SOFT_SERIAL_PIN
 /* Soft Serial defines */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD2)
-#define SERIAL_PIN_INTERRUPT INT2_vect
+#define SOFT_SERIAL_PIN D2
 
 #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
 #define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
-
-//// #error rev2 serial config
-
-#endif /* SOFT_SERIAL_CONFIG_H */
+#endif
diff --git a/keyboards/helix/rev1/config.h b/keyboards/helix/rev1/config.h
index 7fec62fc83..07b5c4f6f8 100644
--- a/keyboards/helix/rev1/config.h
+++ b/keyboards/helix/rev1/config.h
@@ -74,11 +74,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-#define RGBLIGHT_TIMER
-#define RGBLED_NUM 12    // Number of LEDs
-#define ws2812_PORTREG  PORTD
-#define ws2812_DDRREG   DDRD
 
+#define RGBLED_NUM 12    // Number of LEDs
 /*
  * Feature disable options
  *  These options are also useful to firmware size reduction.
diff --git a/keyboards/helix/rev1/keymaps/OLED_sample/config.h b/keyboards/helix/rev1/keymaps/OLED_sample/config.h
index 0e1b787a5a..5e8989d96f 100644
--- a/keyboards/helix/rev1/keymaps/OLED_sample/config.h
+++ b/keyboards/helix/rev1/keymaps/OLED_sample/config.h
@@ -35,7 +35,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 #define SSD1306OLED
 
-#define PREVENT_STUCK_MODIFIERS
+#define USE_SERIAL_PD2
+
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 
diff --git a/keyboards/helix/rev1/keymaps/OLED_sample/keymap.c b/keyboards/helix/rev1/keymaps/OLED_sample/keymap.c
index fa51501e62..9b81979ff4 100644
--- a/keyboards/helix/rev1/keymaps/OLED_sample/keymap.c
+++ b/keyboards/helix/rev1/keymaps/OLED_sample/keymap.c
@@ -368,7 +368,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
         } else {
           TOG_STATUS = !TOG_STATUS;
-          rgblight_mode(16);
+          rgblight_mode(RGBLIGHT_MODE_SNAKE + 1);
         }
         layer_on(_LOWER);
         update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
@@ -387,7 +387,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
         } else {
           TOG_STATUS = !TOG_STATUS;
-          rgblight_mode(15);
+          rgblight_mode(RGBLIGHT_MODE_SNAKE);
         }
         layer_on(_RAISE);
         update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
diff --git a/keyboards/helix/rev1/keymaps/OLED_sample/rules.mk b/keyboards/helix/rev1/keymaps/OLED_sample/rules.mk
deleted file mode 100644
index 3f8fd5dc67..0000000000
--- a/keyboards/helix/rev1/keymaps/OLED_sample/rules.mk
+++ /dev/null
@@ -1,25 +0,0 @@
-
-# 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 = no        # 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 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.
-SWAP_HANDS_ENABLE = no        # Enable one-hand typing
-
-# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
-SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
-
-ifndef QUANTUM_DIR
-	include ../../../../Makefile
-endif
diff --git a/keyboards/helix/rev1/keymaps/OLED_sample/serial_config.h b/keyboards/helix/rev1/keymaps/OLED_sample/serial_config.h
index be2e7cb8b1..f56951e707 100644
--- a/keyboards/helix/rev1/keymaps/OLED_sample/serial_config.h
+++ b/keyboards/helix/rev1/keymaps/OLED_sample/serial_config.h
@@ -1,16 +1,9 @@
-#ifndef SOFT_SERIAL_CONFIG_H
-#define SOFT_SERIAL_CONFIG_H
+//// #error rev1/keymaps/OLED_sample serial config
 
+#ifndef SOFT_SERIAL_PIN
 /* Soft Serial defines */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD2)
-#define SERIAL_PIN_INTERRUPT INT2_vect
+#define SOFT_SERIAL_PIN D2
 
 #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
-#define SERIAL_MASTER_BUFFER_LENGTH 1
-
-//// #error rev1/keymaps/OLED_sample serial config
-
-#endif /* SOFT_SERIAL_CONFIG_H */
+#define SERIAL_MASTER_BUFFER_LENGTH 0
+#endif
diff --git a/keyboards/helix/rev1/rev1.c b/keyboards/helix/rev1/rev1.c
index d7ea9b7235..309cca010f 100644
--- a/keyboards/helix/rev1/rev1.c
+++ b/keyboards/helix/rev1/rev1.c
@@ -2,6 +2,12 @@
 
 
 #ifdef SSD1306OLED
+#include "ssd1306.h"
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	return process_record_gfx(keycode,record) && process_record_user(keycode, record);
+}
+
 void led_set_kb(uint8_t usb_led) {
     // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
     led_set_user(usb_led);
diff --git a/keyboards/helix/rev1/rules.mk b/keyboards/helix/rev1/rules.mk
index daba80eaea..13834f5da1 100644
--- a/keyboards/helix/rev1/rules.mk
+++ b/keyboards/helix/rev1/rules.mk
@@ -1,4 +1,4 @@
-SRC += rev1/matrix.c \
-	   rev1/split_util.c
+SRC += rev1/matrix.c
+SRC += rev1/split_util.c
 
 BACKLIGHT_ENABLE = no
diff --git a/keyboards/helix/rev1/serial_config.h b/keyboards/helix/rev1/serial_config.h
index 2b668a6afc..32218f9bbe 100644
--- a/keyboards/helix/rev1/serial_config.h
+++ b/keyboards/helix/rev1/serial_config.h
@@ -1,16 +1,9 @@
-#ifndef SOFT_SERIAL_CONFIG_H
-#define SOFT_SERIAL_CONFIG_H
+/// #error rev1 serial config
 
+#ifndef SOFT_SERIAL_PIN
 /* Soft Serial defines */
-#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 SOFT_SERIAL_PIN D0
 
 #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
-#define SERIAL_MASTER_BUFFER_LENGTH 1
-
-/// #error rev1 serial config
-
-#endif /* SOFT_SERIAL_CONFIG_H */
+#define SERIAL_MASTER_BUFFER_LENGTH 0
+#endif
diff --git a/keyboards/helix/rev2/config.h b/keyboards/helix/rev2/config.h
index 058236122f..f7d35b3714 100644
--- a/keyboards/helix/rev2/config.h
+++ b/keyboards/helix/rev2/config.h
@@ -28,7 +28,6 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define DESCRIPTION     A split keyboard for the cheap makers
 
 
-#define PREVENT_STUCK_MODIFIERS
 #define TAPPING_FORCE_HOLD
 #define TAPPING_TERM 100
 
@@ -88,10 +87,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 /* ws2812 RGB LED */
 #define RGB_DI_PIN D3
-#define RGBLIGHT_TIMER
+
 //#define RGBLED_NUM 12    // Number of LEDs. see ./keymaps/default/config.h
-#define ws2812_PORTREG  PORTD
-#define ws2812_DDRREG   DDRD
 
 // Helix keyboard RGB LED support
 //#define RGBLIGHT_ANIMATIONS : see ./rules.mk: LED_ANIMATIONS = yes or no
diff --git a/keyboards/helix/rev2/keymaps/default/config.h b/keyboards/helix/rev2/keymaps/default/config.h
index 6da6849a1d..ed37675794 100644
--- a/keyboards/helix/rev2/keymaps/default/config.h
+++ b/keyboards/helix/rev2/keymaps/default/config.h
@@ -23,4 +23,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 // place overrides here
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/default/keymap.c b/keyboards/helix/rev2/keymaps/default/keymap.c
index dca9be9a47..0fb821affb 100644
--- a/keyboards/helix/rev2/keymaps/default/keymap.c
+++ b/keyboards/helix/rev2/keymaps/default/keymap.c
@@ -183,7 +183,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       _______, RESET,   RGBRST,  _______, _______, _______,                   _______, _______, _______, _______, _______, KC_DEL, \
       _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM,                   AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
       _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
-      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD \
       )
 };
 
@@ -296,7 +296,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
       _______, RESET,   _______, _______, _______, _______,                   _______, _______, _______, _______, _______, KC_DEL, \
       _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM,                   AG_SWAP, QWERTY,  COLEMAK, DVORAK,  _______, _______, \
       _______, _______, _______, _______, _______, _______,                   _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
-      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD \
       )
 };
 
@@ -373,7 +373,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         } else {
           TOG_STATUS = !TOG_STATUS;
           #ifdef RGBLIGHT_ENABLE
-            //rgblight_mode(16);
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE + 1);
           #endif
         }
         layer_on(_LOWER);
@@ -396,7 +396,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         } else {
           TOG_STATUS = !TOG_STATUS;
           #ifdef RGBLIGHT_ENABLE
-            //rgblight_mode(15);
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE);
           #endif
         }
         layer_on(_RAISE);
@@ -512,7 +512,7 @@ void music_scale_user(void)
 
 // hook point for 'led_test' keymap
 //   'default' keymap's led_test_init() is empty function, do nothing
-//   'led_test' keymap's led_test_init() force rgblight_mode_noeeprom(35);
+//   'led_test' keymap's led_test_init() force rgblight_mode_noeeprom(RGBLIGHT_MODE_RGB_TEST);
 __attribute__ ((weak))
 void led_test_init(void) {}
 
diff --git a/keyboards/helix/rev2/keymaps/default/rules.mk b/keyboards/helix/rev2/keymaps/default/rules.mk
index 5340a74ba2..3f84b895aa 100644
--- a/keyboards/helix/rev2/keymaps/default/rules.mk
+++ b/keyboards/helix/rev2/keymaps/default/rules.mk
@@ -14,7 +14,7 @@ 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -100,7 +100,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/config.h b/keyboards/helix/rev2/keymaps/edvorakjp/config.h
index a7a5f83600..769988cdb5 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/config.h
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/config.h
@@ -4,5 +4,21 @@
 #undef TAPPING_FORCE_HOLD
 #undef TAPPING_TERM
 #define TAPPING_TERM 120
+#define SWAP_SCLN
+
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
 
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c b/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
index 650a39115a..fd324a859a 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/keymap.c
@@ -11,7 +11,7 @@ bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
   switch(keycode) {
     case KC_LOCK:
       if (record->event.pressed) {
-        if (edvorakjp_config.enable_kc_lang) {
+        if (get_enable_kc_lang()) {
           SEND_STRING( SS_LCTRL(SS_LSFT(SS_TAP(X_POWER))) );
         } else {
           SEND_STRING( SS_LGUI("l") );
@@ -35,7 +35,7 @@ void matrix_scan_user(void) {
 
 #ifdef RGBLIGHT_ENABLE
 uint32_t layer_state_set_keymap(uint32_t state) {
-  rgblight_mode_noeeprom(1);
+  rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_LIGHT);
   switch (biton32(state)) {
     case _EDVORAKJ1:
     case _EDVORAKJ2:
@@ -52,7 +52,7 @@ uint32_t layer_state_set_keymap(uint32_t state) {
       rgblight_sethsv_noeeprom_green();
       break;
     default: //  for any other layers, or the default layer
-      rgblight_mode_noeeprom(28);
+      rgblight_mode_noeeprom(RGBLIGHT_MODE_STATIC_GRADIENT + 3);
       rgblight_sethsv_noeeprom_red();
       break;
   }
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/keymap_4rows.c b/keyboards/helix/rev2/keymaps/edvorakjp/keymap_4rows.c
index d8257d81f8..805e6b17b7 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/keymap_4rows.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/keymap_4rows.c
@@ -5,7 +5,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 
   [_EDVORAK] = LAYOUT_kc(
   //,----+----+----+----+----+----.              ,----+----+----+----+----+----.
-     LBRC,RBRC,COMM,DOT , P  , Y  ,                F  , G  , R  , W  , Q  ,BSLS,
+     LBRC,RBRC,COMM,DOT , Y  , P  ,                F  , G  , R  , W  , Q  ,BSLS,
   //|----+----+----+----+----+----|              |----+----+----+----+----+----|
      EQL , A  , O  , E  , I  , U  ,                D  , T  , N  , S  , M  ,MINS,
   //|----+----+----+----+----+----|              |----+----+----+----+----+----|
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/keymap_5rows.c b/keyboards/helix/rev2/keymaps/edvorakjp/keymap_5rows.c
index 9116b39665..ef1b9d358c 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/keymap_5rows.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/keymap_5rows.c
@@ -7,7 +7,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
   //,----+----+----+----+----+----.              ,----+----+----+----+----+----.
      GRV ,EXLM, AT ,HASH,DLR ,PERC,               CIRC,AMPR,ASTR,LPRN,RPRN,BSPC,
   //|----+----+----+----+----+----|              |----+----+----+----+----+----|
-     LBRC,RBRC,COMM,DOT , P  , Y  ,                F  , G  , R  , W  , Q  ,BSLS,
+     LBRC,RBRC,COMM,DOT , Y  , P  ,                F  , G  , R  , W  , Q  ,BSLS,
   //|----+----+----+----+----+----|              |----+----+----+----+----+----|
      EQL , A  , O  , E  , I  , U  ,                D  , T  , N  , S  , M  ,MINS,
   //|----+----+----+----+----+----+----.    ,----|----+----+----+----+----+----|
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/oled.c b/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
index 5ced1d4fad..227e2c56f8 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/oled.c
@@ -23,15 +23,10 @@ void render_status(struct CharacterMatrix *matrix) {
 
   // Render to mode icon
   static char logo[][2][3] = {{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
-  if (edvorakjp_config.enable_kc_lang) {
-    matrix_write(matrix, logo[0][0]);
-    matrix_write_P(matrix, PSTR("\n"));
-    matrix_write(matrix, logo[0][1]);
-  } else {
-    matrix_write(matrix, logo[1][0]);
-    matrix_write_P(matrix, PSTR("\n"));
-    matrix_write(matrix, logo[1][1]);
-  }
+  int mode_number = get_enable_kc_lang() ? 0 : 1;
+  matrix_write(matrix, logo[mode_number][0]);
+  matrix_write(matrix, "\n");
+  matrix_write(matrix, logo[mode_number][1]);
 
   // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
   char buf[40];
@@ -63,7 +58,7 @@ void render_status(struct CharacterMatrix *matrix) {
   // Host Keyboard LED Status
   char led[40];
   snprintf(led, sizeof(led), "\n%s %s %s %s",
-      edvorakjp_config.enable_jp_extra_layer && japanese_mode ? "EXT" : "   ",
+      get_enable_jp_extra_layer() && get_japanese_mode() ? "EXT" : "   ",
       (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NMLK" : "    ",
       (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
       (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
diff --git a/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk b/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
index 67da9c370b..4257d004da 100644
--- a/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
+++ b/keyboards/helix/rev2/keymaps/edvorakjp/rules.mk
@@ -13,7 +13,7 @@ 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no      # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -102,7 +102,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-  OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+  OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/five_rows/README.md b/keyboards/helix/rev2/keymaps/five_rows/README.md
index 4feaac2efb..10a4fa942c 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/README.md
+++ b/keyboards/helix/rev2/keymaps/five_rows/README.md
@@ -46,7 +46,7 @@ Mac mode swap Alt/Win(GUI) key.
 | ---- | ---- | --- |
 |on/off|Adjust + e(Qwerty)|RGB_TOG|
 |      |Adjust + i(Qwerty)|       |
-|change mode|Adjust + d(Qwerty) |RGB_SMOD|
+|change mode|Adjust + d(Qwerty) |RGB_MOD|
 |           |Adjust + k(Qwerty)|       |
 |HUE +|Adjust + Left Control|RGB_HUI|
 |     |Adjust + Right Control|       |
diff --git a/keyboards/helix/rev2/keymaps/five_rows/README_jp.md b/keyboards/helix/rev2/keymaps/five_rows/README_jp.md
index 932e200a56..317ffdd71d 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/README_jp.md
+++ b/keyboards/helix/rev2/keymaps/five_rows/README_jp.md
@@ -68,7 +68,7 @@ Winモードでは、該当のキーはどちらも共に Alt + `（日本語IME
 | ---- | ---- | --- |
 |オン／オフ|Adjust + e(Qwerty)|RGB_TOG|
 |      |Adjust + i(Qwerty)|       |
-|モード切り替え|Adjust + d(Qwerty) |RGB_SMOD|
+|モード切り替え|Adjust + d(Qwerty) |RGB_MOD|
 |           |Adjust + k(Qwerty)|       |
 |色相 +|Adjust + Left Control|RGB_HUI|
 |     |Adjust + Right Control|       |
diff --git a/keyboards/helix/rev2/keymaps/five_rows/config.h b/keyboards/helix/rev2/keymaps/five_rows/config.h
index 6da6849a1d..538859bc3c 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/config.h
+++ b/keyboards/helix/rev2/keymaps/five_rows/config.h
@@ -21,6 +21,27 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifndef CONFIG_USER_H
 #define CONFIG_USER_H
 
+#undef TAPPING_TERM
+#define TAPPING_TERM 300
+#define PERMISSIVE_HOLD
+/* when TAPPING_TERM >= 500 same effect PERMISSIVE_HOLD.
+   see tmk_core/common/action_tapping.c */
+
 // place overrides here
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   //#define RGBLIGHT_EFFECT_SNAKE
+   //#define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/five_rows/keymap.c b/keyboards/helix/rev2/keymaps/five_rows/keymap.c
index 548caf8220..7b7d573d6a 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/keymap.c
+++ b/keyboards/helix/rev2/keymaps/five_rows/keymap.c
@@ -10,6 +10,9 @@
 #ifdef SSD1306OLED
   #include "ssd1306.h"
 #endif
+#ifdef CONSOLE_ENABLE
+  #include <print.h>
+#endif
 
 extern keymap_config_t keymap_config;
 
@@ -28,6 +31,7 @@ enum layer_number {
     _QWERTY = 0,
     _COLEMAK,
     _DVORAK,
+    _EUCALYN,
     _KEYPAD,
     _AUX,
     _KAUX,
@@ -41,23 +45,27 @@ enum custom_keycodes {
   QWERTY = SAFE_RANGE,
   COLEMAK,
   DVORAK,
+  EUCALYN,
   KEYPAD,
-  EISU,
-  KANA,
-  ZERO2,
+  KC_xEISU,
+  KC_xKANA,
+  KC_ZERO2,
   RGBRST
 };
 
-enum macro_keycodes {
-  KC_SAMPLEMACRO,
-};
-
-
-// Fillers to make layering more clear
-#define _______ KC_TRNS
-#define XXXXXXX KC_NO
 //Macros
-#define M_SAMPLE M(KC_SAMPLEMACRO)
+#define KC_LOWER  MO(_LOWER)
+#define KC_RABS   LT(_RAISE,KC_BSPC)
+#define KC_RAEN   LT(_RAISE,KC_ENT)
+#define KC_FF12   LT(_PADFUNC,KC_F12)
+#define KC_____   _______
+#define KC_XXXX   XXXXXXX
+#define KC_ADJ    MO(_ADJUST)
+#define KC_LSMI   LSFT(KC_MINS)
+#define KC_LSEQ   LSFT(KC_EQL)
+#define KC_LSRB   LSFT(KC_RBRC)
+#define KC_LSLB   LSFT(KC_LBRC)
+#define ___       _______
 
 #if HELIX_ROWS == 5
 const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
@@ -72,16 +80,15 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
    * | Shift|   Z  |   X  |   C  |   V  |   B  |   `  |   '  |   N  |   M  |   ,  |   .  |   /  | Shift|
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
-   * |Lower | Lower| Caps  | GUI  | Alt | Space|  BS  | Enter| Space| Alt  | GUI  | Menu |Lower |Lower |
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_QWERTY] = LAYOUT( \
-      KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
-      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_BSLS, \
-      KC_LCTL, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_RCTL, \
-      KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_GRV, KC_QUOT,  KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, \
-      MO(_LOWER),MO(_LOWER),  KC_CAPS, KC_LALT, KC_LGUI, KC_SPC, LT(_RAISE,KC_BSPC), \
-                                                         LT(_RAISE,KC_ENT), KC_SPC,  KC_RGUI, KC_RALT, KC_APP,MO(_LOWER),MO(_LOWER) \
+  [_QWERTY] = LAYOUT_kc( \
+      ESC,    1,    2,    3,    4,    5,                  6,    7,    8,    9,    0,  BSPC, \
+      TAB,    Q,    W,    E,    R,    T,                  Y,    U,    I,    O,    P,  BSLS, \
+      LCTL,   A,    S,    D,    F,    G,                  H,    J,    K,    L, SCLN,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    B,    GRV,  QUOT,   N,    M, COMM,  DOT, SLSH,  RSFT, \
+      LOWER, LOWER, CAPS, LALT, LGUI, SPC, RABS,  RAEN, SPC, RGUI, RALT,  APP,LOWER, LOWER \
       ),
 
   /* Colemak
@@ -94,16 +101,15 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
    * | Shift|   Z  |   X  |   C  |   V  |   B  |   `  |   '  |   K  |   M  |   ,  |   .  |   /  | Shift|
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
-   * |Lower | Lower| Caps  | GUI  | Alt | Space|  BS  | Enter| Space| Alt  | GUI  | Menu |Lower |Lower |
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_COLEMAK] = LAYOUT( \
-      KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
-      KC_TAB,  KC_Q,    KC_W,    KC_F,    KC_P,    KC_G,                      KC_J,    KC_L,    KC_U,    KC_Y,    KC_SCLN, KC_BSLS, \
-      KC_LCTL, KC_A,    KC_R,    KC_S,    KC_T,    KC_D,                      KC_H,    KC_N,    KC_E,    KC_I,    KC_O,    KC_RCTL, \
-      KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    KC_GRV, KC_QUOT,  KC_K,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_RSFT, \
-      MO(_LOWER),MO(_LOWER),  KC_CAPS, KC_LALT, KC_LGUI, KC_SPC,  LT(_RAISE,KC_BSPC), \
-                                                         LT(_RAISE,KC_ENT), KC_SPC,  KC_RGUI, KC_RALT, KC_APP,MO(_LOWER),MO(_LOWER) \
+  [_COLEMAK] = LAYOUT_kc( \
+      ESC,    1,    2,    3,    4,    5,                  6,    7,    8,    9,    0,  BSPC, \
+      TAB,    Q,    W,    F,    P,    G,                  J,    L,    U,    Y, SCLN,  BSLS, \
+      LCTL,   A,    R,    S,    T,    D,                  H,    N,    E,    I,    O,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    B,    GRV,  QUOT,   K,    M, COMM,  DOT, SLSH,  RSFT, \
+      LOWER, LOWER, CAPS, LALT, LGUI, SPC, RABS,  RAEN, SPC, RGUI, RALT,  APP,LOWER, LOWER \
       ),
 
   /* Dvorak
@@ -116,16 +122,36 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
    * | Shift|   ;  |   Q  |   J  |   K  |   X  |   `  |   /  |   B  |   M  |   W  |   V  |   Z  | Shift|
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
-   * |Lower | Lower| Caps  | GUI  | Alt | Space|  BS  | Enter| Space| Alt  | GUI  | Menu |Lower |Lower |
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_DVORAK] = LAYOUT( \
-      KC_ESC,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
-      KC_TAB,  KC_QUOT, KC_COMM, KC_DOT,  KC_P,    KC_Y,                      KC_F,    KC_G,    KC_C,    KC_R,    KC_L,    KC_BSLS, \
-      KC_LCTL, KC_A,    KC_O,    KC_E,    KC_U,    KC_I,                      KC_D,    KC_H,    KC_T,    KC_N,    KC_S,    KC_RCTL, \
-      KC_LSFT, KC_SCLN, KC_Q,    KC_J,    KC_K,    KC_X,    KC_GRV, KC_SLSH,  KC_B,    KC_M,    KC_W,    KC_V,    KC_Z,    KC_RSFT, \
-      MO(_LOWER),MO(_LOWER),  KC_CAPS, KC_LALT, KC_LGUI, KC_SPC,  LT(_RAISE,KC_BSPC), \
-                                                         LT(_RAISE,KC_ENT), KC_SPC,  KC_RGUI, KC_RALT, KC_APP,MO(_LOWER),MO(_LOWER) \
+  [_DVORAK] = LAYOUT_kc( \
+      ESC,    1,    2,    3,    4,    5,                  6,    7,    8,    9,    0,  BSPC, \
+      TAB, QUOT, COMM,  DOT,    P,    Y,                  F,    G,    C,    R,    L,  BSLS, \
+      LCTL,   A,    O,    E,    U,    I,                  D,    H,    T,    N,    S,  RCTL, \
+      LSFT, SCLN,   Q,    J,    K,    X,    GRV,  SLSH,   B,    M,    W,    V,    Z,  RSFT, \
+      LOWER, LOWER, CAPS, LALT, LGUI, SPC, RABS,  RAEN, SPC, RGUI, RALT,  APP,LOWER, LOWER \
+      ),
+
+  /* Eucalyn (http://eucalyn.hatenadiary.jp/entry/about-eucalyn-layout)
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * | ESC  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Bksp |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Tab  |   Q  |   W  |   ,  |   .  |   ;  |             |   M  |   R  |   D  |   Y  |   P  |  \   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Ctrl |   A  |   O  |   E  |   I  |   U  |             |   G  |   T  |   K  |   S  |   N  | Ctrl |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   F  |   `  |   '  |   B  |   H  |   J  |   L  |   /  | Shift|
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Lower | Lower| Caps |  Alt |  GUI | Space|  BS  | Enter| Space| GUI  | Alt  | Menu |Lower |Lower |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_EUCALYN] = LAYOUT_kc( \
+      ESC,    1,    2,    3,    4,    5,                  6,    7,    8,    9,    0,  BSPC, \
+      TAB,    Q,    W, COMM,  DOT, SCLN,                  M,    R,    D,    Y,    P,  BSLS, \
+      LCTL,   A,    O,    E,    I,    U,                  G,    T,    K,    S,    N,  RCTL, \
+      LSFT,   Z,    X,    C,    V,    F,    GRV,  QUOT,   B,    H,    J,    L, SLSH,  RSFT, \
+      LOWER, LOWER, CAPS, LALT, LGUI, SPC, RABS,  RAEN, SPC, RGUI, RALT,  APP,LOWER, LOWER \
       ),
 
   /* Keypad
@@ -141,13 +167,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |   0  |   ,  |   .  | Enter|  F5  |  F10 |  F12 |  F12 |  F5  |  F10 | Enter|   0  |  ,   |   .  |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_KEYPAD] = LAYOUT( \
-      KC_TAB,  KC_PSLS, KC_PAST, KC_DEL,    KC_F1,   KC_F6,                     KC_F1,   KC_F6, KC_DEL,  KC_TAB,  KC_PSLS, KC_PAST, \
-      KC_KP_7, KC_KP_8, KC_KP_9, KC_BSPC,   KC_F2,   KC_F7,                     KC_F2,   KC_F7, KC_BSPC, KC_KP_7, KC_KP_8, KC_KP_9, \
-      KC_KP_4, KC_KP_5, KC_KP_6, KC_PMNS,   KC_F3,   KC_F8,                     KC_F3,   KC_F8, KC_PMNS, KC_KP_4, KC_KP_5, KC_KP_6, \
-      KC_KP_1, KC_KP_2, KC_KP_3, KC_PPLS,   KC_F4,   KC_F9,  KC_F11,  KC_F11,   KC_F4,   KC_F9, KC_PPLS, KC_KP_1, KC_KP_2, KC_KP_3, \
-      KC_KP_0, KC_COMM, KC_PDOT, KC_PENT,   KC_F5,  KC_F10,  LT(_PADFUNC,KC_F12),
-                                                            LT(_PADFUNC,KC_F12),KC_F5,  KC_F10, KC_PENT, KC_KP_0, KC_COMM, KC_PDOT \
+  [_KEYPAD] = LAYOUT_kc( \
+      TAB,  PSLS, PAST, DEL,    F1,   F6,               F1,   F6,  DEL,  TAB, PSLS, PAST, \
+      KP_7, KP_8, KP_9, BSPC,   F2,   F7,               F2,   F7, BSPC, KP_7, KP_8, KP_9, \
+      KP_4, KP_5, KP_6, PMNS,   F3,   F8,               F3,   F8, PMNS, KP_4, KP_5, KP_6, \
+      KP_1, KP_2, KP_3, PPLS,   F4,   F9,  F11,  F11,   F4,   F9, PPLS, KP_1, KP_2, KP_3, \
+      KP_0, COMM, PDOT, PENT,   F5,  F10, FF12, FF12,   F5,  F10, PENT, KP_0, COMM, PDOT \
       ),
 
   /*  AUX modifier key layer
@@ -163,12 +188,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |      |  00  |      |      |      |      |      |      |      |      |      |      |  00  |      |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_KAUX] = LAYOUT( \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
-      _______, ZERO2,   _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, ZERO2,   _______ \
+  [_KAUX] = LAYOUT_kc( \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, \
+      ____,ZERO2, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ZERO2,____ \
    ),
 
   /*  Keypad function layer
@@ -184,13 +209,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_PADFUNC] = LAYOUT( \
-      XXXXXXX, XXXXXXX, XXXXXXX, KC_PAUS, KC_SLCK, KC_PSCR,                   KC_PSCR, KC_SLCK, KC_PAUS, XXXXXXX, XXXXXXX, XXXXXXX, \
-      XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_UP,   KC_PGUP,                   KC_PGUP, KC_UP,   KC_HOME, XXXXXXX, XXXXXXX, XXXXXXX, \
-      XXXXXXX,  KC_DEL,  KC_INS, KC_LEFT, KC_DOWN, KC_RGHT,                   KC_LEFT, KC_DOWN, KC_RGHT, KC_INS,  KC_DEL,  XXXXXXX, \
-      XXXXXXX, XXXXXXX, XXXXXXX, KC_END,  XXXXXXX, KC_PGDN,MO(_ADJUST),
-                                                                 MO(_ADJUST), KC_PGDN, XXXXXXX, KC_END,  XXXXXXX, XXXXXXX, XXXXXXX, \
-      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX \
+  [_PADFUNC] = LAYOUT_kc( \
+      XXXX, XXXX, XXXX, PAUS, SLCK, PSCR,             PSCR, SLCK, PAUS, XXXX, XXXX, XXXX, \
+      XXXX, XXXX, XXXX, HOME, UP,   PGUP,             PGUP, UP,   HOME, XXXX, XXXX, XXXX, \
+      XXXX,  DEL,  INS, LEFT, DOWN, RGHT,             LEFT, DOWN, RGHT, INS,  DEL,  XXXX, \
+      XXXX, XXXX, XXXX, END,  XXXX, PGDN,  ADJ,  ADJ, PGDN, XXXX, END,  XXXX, XXXX, XXXX, \
+      XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, ____, ____, XXXX, XXXX, XXXX, XXXX, XXXX, XXXX \
    ),
 
   /* Lower
@@ -206,13 +230,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |      |      | PrtSc|      |      |      |      |      |      |      |      | PrtSc|      |      |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_LOWER] = LAYOUT( \
-      XXXXXXX,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                    KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11, \
-      XXXXXXX, XXXXXXX, KC_PAUS, KC_SLCK, KC_INS,  XXXXXXX,                   XXXXXXX, KC_INS,  KC_SLCK, KC_PAUS, XXXXXXX, KC_F12, \
-      _______, KC_HOME, XXXXXXX, KC_UP,   KC_DEL,  KC_PGUP,                   KC_PGUP, KC_DEL,  KC_UP,   XXXXXXX, KC_HOME, _______, \
-      _______, KC_END,  KC_LEFT, KC_DOWN, KC_RGHT, KC_PGDN,  XXXXXXX, XXXXXXX,KC_PGDN, KC_LEFT, KC_DOWN, KC_RGHT, KC_END,  _______, \
-      _______, _______, KC_PSCR, _______, _______, _______, MO(_ADJUST),
-                                                                 MO(_ADJUST), _______, _______, _______, KC_PSCR, _______, _______ \
+  [_LOWER] = LAYOUT_kc( \
+      XXXX,  F1,   F2,   F3,   F4,   F5,                F6,   F7,   F8,   F9,  F10,  F11, \
+      XXXX, XXXX, PAUS, SLCK, INS,  XXXX,             XXXX,  INS, SLCK, PAUS, XXXX,  F12, \
+      ____, HOME, XXXX, UP,   DEL,  PGUP,             PGUP,  DEL,   UP, XXXX, HOME, ____, \
+      ____, END,  LEFT, DOWN, RGHT, PGDN, XXXX, XXXX, PGDN, LEFT, DOWN, RGHT,  END, ____, \
+      ____, ____, PSCR, ____, ____, ____,  ADJ,  ADJ, ____, ____, ____, PSCR, ____, ____ \
       ),
 
   /* Raise
@@ -228,18 +251,17 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |      |      |      |      |      |      |      |      |      |      |      |      |      |      |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_RAISE] = LAYOUT( \
-      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
-      XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, LSFT(KC_MINS), KC_MINS,         KC_EQL, LSFT(KC_EQL), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, \
-      _______, XXXXXXX, XXXXXXX, XXXXXXX, LSFT(KC_LBRC), KC_LBRC,       KC_RBRC, LSFT(KC_RBRC), XXXXXXX, XXXXXXX, XXXXXXX, _______, \
-      _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,    EISU,    EISU,    KANA,    KANA, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY, _______, \
-      MO(_ADJUST),MO(_ADJUST),XXXXXXX, _______, _______, XXXXXXX, _______,
-                                                                _______, XXXXXXX, _______, _______, XXXXXXX,MO(_ADJUST),MO(_ADJUST) \
+  [_RAISE] = LAYOUT_kc( \
+      XXXX, XXXX, XXXX, XXXX, XXXX, XXXX,             XXXX, XXXX, XXXX, XXXX, XXXX, XXXX, \
+      XXXX, XXXX, XXXX, XXXX, LSMI, MINS,              EQL, LSEQ, XXXX, XXXX, XXXX, XXXX, \
+      ____, XXXX, XXXX, XXXX, LSLB, LBRC,             RBRC, LSRB, XXXX, XXXX, XXXX, ____, \
+      ____, XXXX, XXXX, XXXX, XXXX,xEISU,xEISU, xKANA,xKANA,MNXT, VOLD, VOLU, MPLY, ____, \
+      ADJ,   ADJ, XXXX, ____, ____, XXXX, ____, ____, XXXX, ____, ____, XXXX,  ADJ,  ADJ \
       ),
 
   /* Adjust (Lower + Raise)
    * ,-----------------------------------------.             ,-----------------------------------------.
-   * |      |      |Keypad|Dvorak|Colemk|Qwerty|             |Qwerty|Colemk|Dvorak|Keypad|      |      |
+   * |      |Keypad|Dvorak|Colemk|Euclyn|Qwerty|             |Qwerty|Euclyn|Colemk|Dvorak|Keypad|      |
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
    * |      | Reset|RGBRST|RGB ON|Aud on| Win  |             | Win  |Aud on|RGB ON|RGBRST|      |      |
    * |------+------+------+------+------+------|             |------+------+------+------+------+------|
@@ -251,11 +273,11 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * `-------------------------------------------------------------------------------------------------'
    */
   [_ADJUST] =  LAYOUT( \
-      XXXXXXX, XXXXXXX, KEYPAD,   DVORAK, COLEMAK,  QWERTY,                   QWERTY,  COLEMAK,  DVORAK,  KEYPAD, XXXXXXX, XXXXXXX, \
-      XXXXXXX, RESET,   RGBRST,  RGB_TOG,   AU_ON, AG_SWAP,                   AG_SWAP,   AU_ON, RGB_TOG,  RGBRST, XXXXXXX, XXXXXXX, \
-      RGB_HUI, RGB_SAI, RGB_VAI,RGB_SMOD,  AU_OFF, AG_NORM,                   AG_NORM,  AU_OFF,RGB_SMOD, RGB_VAI, RGB_SAI, RGB_HUI, \
-      RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, RGB_VAD, RGB_SAD, RGB_HUD, \
-      _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______ \
+      XXXXXXX, KEYPAD,  DVORAK,  COLEMAK, EUCALYN,  QWERTY,          QWERTY,  EUCALYN, COLEMAK,  DVORAK,  KEYPAD, XXXXXXX, \
+      XXXXXXX, RESET,   RGBRST,  RGB_TOG,   AU_ON, AG_SWAP,          AG_SWAP,   AU_ON, RGB_TOG,  RGBRST, XXXXXXX, XXXXXXX, \
+      RGB_HUI, RGB_SAI, RGB_VAI, RGB_MOD,  AU_OFF, AG_NORM,          AG_NORM,  AU_OFF, RGB_MOD, RGB_VAI, RGB_SAI, RGB_HUI, \
+      RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, ___,___, XXXXXXX, XXXXXXX, XXXXXXX, RGB_VAD, RGB_SAD, RGB_HUD, \
+      _______, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, ___,___, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, _______ \
    ),
 
   /*  AUX modifier key layer
@@ -271,13 +293,12 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |      |      |      |      |      |  BS  | Enter|      |      |      |      |      |      |      |
    * `-------------------------------------------------------------------------------------------------'
    */
-  [_AUX] = LAYOUT( \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______,                   _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
-      _______, _______, _______, _______, _______,  KC_BSPC,  LT(_RAISE,KC_ENT), \
-                                                                     _______, _______, _______, _______, _______, _______, _______ \
+  [_AUX] = LAYOUT_kc( \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____,             ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, ____, \
+      ____, ____, ____, ____, ____, BSPC, RAEN, ____, ____, ____, ____, ____, ____, ____ \
       )
 };
 
@@ -304,23 +325,25 @@ uint32_t default_layer_state_set_kb(uint32_t state) {
     current_default_layer = state - 1;
     // 1<<_DVORAK  - 2 == 4 - 2 == _DVORAK (=2)
     if ( current_default_layer == 3 ) current_default_layer -= 1;
-    // 1<<_KEYPAD  - 5 == 8 - 5 == _KEYPAD (=3)
+    // 1<<_EUCALYN - 5 == 8 - 5 == _EUCALYN (=3)
     if ( current_default_layer == 7 ) current_default_layer -= 4;
+    // 1<<_KEYPAD  - 12 == 16 - 12 == _KEYPAD (=4)
+    if ( current_default_layer == 15 ) current_default_layer -= 11;
     return state;
 }
 
 void update_base_layer(int base)
 {
     if( current_default_layer != base ) {
-	eeconfig_update_default_layer(1UL<<base);
-	default_layer_set(1UL<<base);
-	layer_off(_AUX);
-	layer_off(_KAUX);
+        eeconfig_update_default_layer(1UL<<base);
+        default_layer_set(1UL<<base);
+        layer_off(_AUX);
+        layer_off(_KAUX);
     } else {
-	if( base < _KEYPAD )
-	    layer_invert(_AUX);
-	else
-	    layer_invert(_KAUX);
+        if( base < _KEYPAD )
+            layer_invert(_AUX);
+        else
+            layer_invert(_KAUX);
     }
 }
 
@@ -331,7 +354,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(tone_qwerty);
         #endif
-	update_base_layer(_QWERTY);
+        update_base_layer(_QWERTY);
       }
       return false;
       break;
@@ -340,7 +363,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(tone_colemak);
         #endif
-	update_base_layer(_COLEMAK);
+        update_base_layer(_COLEMAK);
       }
       return false;
       break;
@@ -349,7 +372,16 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(tone_dvorak);
         #endif
-	update_base_layer(_DVORAK);
+        update_base_layer(_DVORAK);
+      }
+      return false;
+      break;
+    case EUCALYN:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_dvorak);
+        #endif
+        update_base_layer(_EUCALYN);
       }
       return false;
       break;
@@ -358,17 +390,17 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
         #ifdef AUDIO_ENABLE
           PLAY_SONG(tone_dvorak);
         #endif
-	update_base_layer(_KEYPAD);
+        update_base_layer(_KEYPAD);
       }
       return false;
       break;
-    case ZERO2:
+    case KC_ZERO2:
       if (record->event.pressed) {
           SEND_STRING("00");
       }
       return false;
       break;
-    case EISU:
+    case KC_xEISU:
       if (record->event.pressed) {
         if(keymap_config.swap_lalt_lgui==false){
           register_code(KC_LANG2);
@@ -380,7 +412,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       }
       return false;
       break;
-    case KANA:
+    case KC_xKANA:
       if (record->event.pressed) {
         if(keymap_config.swap_lalt_lgui==false){
           register_code(KC_LANG1);
@@ -468,10 +500,10 @@ static void render_logo(struct CharacterMatrix *matrix) {
   char buf[30];
   if(rgblight_config.enable) {
       snprintf(buf, sizeof(buf), " LED %2d: %d,%d,%d ",
-	       rgblight_config.mode,
-	       rgblight_config.hue/RGBLIGHT_HUE_STEP,
-	       rgblight_config.sat/RGBLIGHT_SAT_STEP,
-	       rgblight_config.val/RGBLIGHT_VAL_STEP);
+               rgblight_config.mode,
+               rgblight_config.hue/RGBLIGHT_HUE_STEP,
+               rgblight_config.sat/RGBLIGHT_SAT_STEP,
+               rgblight_config.val/RGBLIGHT_VAL_STEP);
       matrix_write(matrix, buf);
   }
 #endif
@@ -481,6 +513,7 @@ static void render_logo(struct CharacterMatrix *matrix) {
 static const char Qwerty_name[]  PROGMEM = " Qwerty";
 static const char Colemak_name[] PROGMEM = " Colemak";
 static const char Dvorak_name[]  PROGMEM = " Dvorak";
+static const char Eucalyn_name[] PROGMEM = " Eucalyn";
 static const char Keypad_name[]  PROGMEM = " Keypad";
 
 static const char AUX_name[]     PROGMEM = ":AUX";
@@ -494,6 +527,7 @@ static const char *layer_names[] = {
     [_QWERTY] = Qwerty_name,
     [_COLEMAK] = Colemak_name,
     [_DVORAK] = Dvorak_name,
+    [_EUCALYN]= Eucalyn_name,
     [_KEYPAD] = Keypad_name,
     [_AUX]    = AUX_name,
     [_KAUX]   = KAUX_name,
@@ -526,18 +560,18 @@ void render_status(struct CharacterMatrix *matrix) {
        lstate && name_num < sizeof(layer_names)/sizeof(char *);
        lstate >>=1, name_num++ ) {
       if( (lstate & 1) != 0 ) {
-	  if( layer_names[name_num] ) {
-	      matrix_write_P(matrix, layer_names[name_num]);
-	  }
+          if( layer_names[name_num] ) {
+              matrix_write_P(matrix, layer_names[name_num]);
+          }
       }
   }
 
   // Host Keyboard LED Status
   char led[40];
     snprintf(led, sizeof(led), "\n%s  %s  %s",
-            (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
-            (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
-            (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
+             (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
+             (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
+             (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
   matrix_write(matrix, led);
 }
 
diff --git a/keyboards/helix/rev2/keymaps/five_rows/rules.mk b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
index 402f855ae1..bd7130cfc6 100644
--- a/keyboards/helix/rev2/keymaps/five_rows/rules.mk
+++ b/keyboards/helix/rev2/keymaps/five_rows/rules.mk
@@ -6,15 +6,19 @@
 BOOTMAGIC_ENABLE = no       # Virtual DIP switch configuration(+1000)
 MOUSEKEY_ENABLE = no       # Mouse keys(+4700)
 EXTRAKEY_ENABLE = no       # Audio control and System control(+450)
-CONSOLE_ENABLE = no         # Console for debug(+400)
+CONSOLE_ENABLE = no        # Console for debug
 COMMAND_ENABLE = no        # Commands for debug and configuration
+# CONSOLE_ENABLE and COMMAND_ENABLE
+#      yes, no  +1500
+#      yes, yes +3200
+#      no,  yes +400
 NKRO_ENABLE = no            # 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 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -66,6 +70,9 @@ ifneq ($(strip $(HELIX)),)
   ifeq ($(findstring ios,$(HELIX)), ios)
     IOS_DEVICE_ENABLE = yes
   endif
+  ifeq ($(findstring console,$(HELIX)), console)
+    CONSOLE_ENABLE = yes
+  endif
   $(eval $(call HELIX_CUSTOMISE_MSG))
   $(info )
 endif
@@ -100,7 +107,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/five_rows_jis/config.h b/keyboards/helix/rev2/keymaps/five_rows_jis/config.h
index 34650b99a6..97494c937f 100644
--- a/keyboards/helix/rev2/keymaps/five_rows_jis/config.h
+++ b/keyboards/helix/rev2/keymaps/five_rows_jis/config.h
@@ -40,4 +40,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
   #define MOUSEKEY_DELAY 0
 #endif
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/five_rows_jis/keymap.c b/keyboards/helix/rev2/keymaps/five_rows_jis/keymap.c
index 141b222753..8c2040d5be 100644
--- a/keyboards/helix/rev2/keymaps/five_rows_jis/keymap.c
+++ b/keyboards/helix/rev2/keymaps/five_rows_jis/keymap.c
@@ -204,7 +204,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
     XXXXXXX, RESET,   RGBRST,  XXXXXXX, XXXXXXX, XXXXXXX,                   XXXXXXX, RESET,   RGBRST,  XXXXXXX, XXXXXXX, XXXXXXX, \
     XXXXXXX, DL_BAS,  DL_BASE, AG_NORM, AG_SWAP, XXXXXXX,                   XXXXXXX, DL_BAS,  DL_BASE, AG_NORM, AG_SWAP, XXXXXXX, \
     XXXXXXX, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, XXXXXXX,                   XXXXXXX, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, XXXXXXX, \
-    XXXXXXX, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_SMOD,RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, \
+    XXXXXXX, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD, XXXXXXX, \
     _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
     ),
 };
@@ -214,7 +214,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
 #endif
 
 #ifdef SSD1306OLED
-char keylog[20] = {};
+char keylog[24] = {};
 const char code_to_name[60] = {
     ' ', ' ', ' ', ' ', 'a', 'b', 'c', 'd', 'e', 'f',
     'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p',
@@ -223,7 +223,7 @@ const char code_to_name[60] = {
     'R', 'E', 'B', 'T', ' ', '-', ' ', '@', ' ', ' ',
     ' ', ';', ':', ' ', ',', '.', '/', ' ', ' ', ' '};
 
-inline void set_keylog(uint16_t keycode, keyrecord_t *record)
+static inline void set_keylog(uint16_t keycode, keyrecord_t *record)
 {
   char name = ' ';
   uint8_t leds = host_keyboard_leds();
@@ -246,6 +246,12 @@ inline void set_keylog(uint16_t keycode, keyrecord_t *record)
 }
 #endif
 
+#ifdef RGBLIGHT_ENABLE
+#define RGBLIGHT(mode) rgblight_mode(mode)
+#else
+#define RGBLIGHT(mode)
+#endif
+
 // define variables for reactive RGB
 int RGB_current_mode;
 #ifdef ADJUST_MACRO_ENABLE
@@ -263,12 +269,6 @@ void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
 #define ADJUST_MACRO(layer1, layer2, layer3)
 #endif
 
-#ifdef RGBLIGHT_ENABLE
-#define RGBLIGHT(mode) rgblight_mode(mode)
-#else
-#define RGBLIGHT(mode)
-#endif
-
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
   #ifdef SSD1306OLED
     if (record->event.pressed) {
@@ -344,7 +344,7 @@ void matrix_scan_user(void) {
   iota_gfx_task();  // this is what updates the display continuously
 }
 
-inline void matrix_update(struct CharacterMatrix *dest,
+static inline void matrix_update(struct CharacterMatrix *dest,
                           const struct CharacterMatrix *source) {
   if (memcmp(dest->display, source->display, sizeof(dest->display))) {
     memcpy(dest->display, source->display, sizeof(dest->display));
@@ -367,13 +367,15 @@ const char helix_logo[]={
   0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
   0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,
   0};
-inline void render_logo(struct CharacterMatrix *matrix) {
+
+static inline void render_logo(struct CharacterMatrix *matrix) {
 
   matrix_write(matrix, helix_logo);
 }
 
 const char mac_win_logo[][2][3]={{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
-inline void render_status(struct CharacterMatrix *matrix) {
+
+static inline void render_status(struct CharacterMatrix *matrix) {
 
   char buf[20];
   // Render to mode icon
diff --git a/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk b/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
index 5340a74ba2..3f84b895aa 100644
--- a/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
+++ b/keyboards/helix/rev2/keymaps/five_rows_jis/rules.mk
@@ -14,7 +14,7 @@ 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -100,7 +100,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/froggy/config.h b/keyboards/helix/rev2/keymaps/froggy/config.h
index df72aef123..517368ae94 100644
--- a/keyboards/helix/rev2/keymaps/froggy/config.h
+++ b/keyboards/helix/rev2/keymaps/froggy/config.h
@@ -26,4 +26,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #define ONESHOT_TAP_TOGGLE 5 /* Tapping this number of times holds the key until tapped this number of times again. */
 #define ONESHOT_TIMEOUT 5000 /* Time (in ms) before the one shot key is released */
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/froggy/keymap.c b/keyboards/helix/rev2/keymaps/froggy/keymap.c
index 5ac927af3e..efd8a29160 100644
--- a/keyboards/helix/rev2/keymaps/froggy/keymap.c
+++ b/keyboards/helix/rev2/keymaps/froggy/keymap.c
@@ -81,7 +81,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
    * | Shift|   Y  |   S  |   N  |   I  |   U  |Space |      |      |      |      |      |      |      |
    * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
-   * | Ctrl | Alt  | win  | Sym  | Num  |  OPT | Ent  |      |      |      |      |      |      |      |
+   * | Ctrl | Alt  | Gui  | Sym  | Num  | OPT  | Ent  |      |      |      |      |      |      |      |
    * `-------------------------------------------------------------------------------------------------'
    */
   [_BASE] = LAYOUT( \
@@ -256,8 +256,31 @@ void register_delay_code(uint8_t layer){
   }
 }
 
+#ifdef RGBLIGHT_ENABLE
+struct keybuf {
+  char col, row;
+  char frame;
+};
+struct keybuf keybufs[256];
+unsigned char keybuf_begin, keybuf_end;
+
+int col, row;
+#endif
+
 bool process_record_user(uint16_t keycode, keyrecord_t *record) {
 
+  #ifdef RGBLIGHT_ENABLE
+    col = record->event.key.col;
+    row = record->event.key.row;
+    if (record->event.pressed && ((row < 5 && is_master) || (row >= 5 && !is_master))) {
+      int end = keybuf_end;
+      keybufs[end].col = col;
+      keybufs[end].row = row % 5;
+      keybufs[end].frame = 0;
+      keybuf_end ++;
+    }
+  #endif
+
   if(tap_timer&&keycode!=OPT_TAP_SP){
     tapping_key = true;
   }
@@ -376,7 +399,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       #ifdef RGBLIGHT_ENABLE
         if (record->event.pressed) {
           RGBAnimation = true;
-          rgblight_mode(6);
+          rgblight_mode(RGBLIGHT_MODE_RAINBOW_MOOD);
           RGB_current_mode = rgblight_config.mode;
         }
       #endif
@@ -385,7 +408,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       #ifdef RGBLIGHT_ENABLE
         if (record->event.pressed) {
           RGBAnimation = true;
-          rgblight_mode(10);
+          rgblight_mode(RGBLIGHT_MODE_RAINBOW_SWIRL + 1);
           RGB_current_mode = rgblight_config.mode;
         }
       #endif
@@ -394,7 +417,7 @@ bool process_record_user(uint16_t keycode, keyrecord_t *record) {
       #ifdef RGBLIGHT_ENABLE
         if (record->event.pressed) {
           RGBAnimation = true;
-          rgblight_mode(21);
+          rgblight_mode(RGBLIGHT_MODE_KNIGHT);
           RGB_current_mode = rgblight_config.mode;
         }
       #endif
@@ -475,6 +498,61 @@ void music_scale_user(void)
 #define L_NFNLAYER 192
 #define L_MOUSECURSOR 256
 
+// LED Effect
+#ifdef RGBLIGHT_ENABLE
+unsigned char rgb[7][5][3];
+void led_ripple_effect(char r, char g, char b) {
+    static int scan_count = -10;
+    static int keys[] = { 6, 6, 6, 7, 7 };
+    static int keys_sum[] = { 0, 6, 12, 18, 25 };
+
+    if (scan_count == -1) {
+      rgblight_enable_noeeprom();
+      rgblight_mode(RGBLIGHT_MODE_STATIC_LIGHT);
+    } else if (scan_count >= 0 && scan_count < 5) {
+      for (unsigned char c=keybuf_begin; c!=keybuf_end; c++) {
+        int i = c;
+        // FIXME:
+
+        int y = scan_count;
+        int dist_y = abs(y - keybufs[i].row);
+        for (int x=0; x<keys[y]; x++) {
+          int dist = abs(x - keybufs[i].col) + dist_y;
+          if (dist <= keybufs[i].frame) {
+            int elevation = MAX(0, (8 + dist - keybufs[i].frame)) << 2;
+            if (elevation) {
+              if ((rgb[x][y][0] != 255) && r) { rgb[x][y][0] = MIN(255, elevation + rgb[x][y][0]); }
+              if ((rgb[x][y][1] != 255) && g) { rgb[x][y][1] = MIN(255, elevation + rgb[x][y][1]); }
+              if ((rgb[x][y][2] != 255) && b) { rgb[x][y][2] = MIN(255, elevation + rgb[x][y][2]); }
+            }
+          }
+        }
+      }
+    } else if (scan_count == 5) {
+      for (unsigned char c=keybuf_begin; c!=keybuf_end; c++) {
+        int i = c;
+        if (keybufs[i].frame < 18) {
+          keybufs[i].frame ++;
+        } else {
+          keybuf_begin ++;
+        }
+      }
+    } else if (scan_count >= 6 && scan_count <= 10) {
+      int y = scan_count - 6;
+      for (int x=0; x<keys[y]; x++) {
+        int at = keys_sum[y] + ((y & 1) ? x : (keys[y] - x - 1));
+        led[at].r = rgb[x][y][0];
+        led[at].g = rgb[x][y][1];
+        led[at].b = rgb[x][y][2];
+      }
+      rgblight_set();
+    } else if (scan_count == 11) {
+      memset(rgb, 0, sizeof(rgb));
+    }
+    scan_count++;
+    if (scan_count >= 12) { scan_count = 0; }
+}
+#endif
 
 uint8_t layer_state_old;
 
@@ -494,42 +572,64 @@ void matrix_scan_user(void) {
   if(layer_state_old != layer_state){
     switch (layer_state) {
       case L_BASE:
-        #ifdef RGBLIGHT_ENABLE
-          if (!RGBAnimation){
-            rgblight_sethsv(187,255,255);
-            rgblight_mode(1);
-          }else{
-            rgblight_mode(RGB_current_mode);
-          }
-        #endif
         break;
       case L_OPT:
         register_delay_code(_OPT);
         break;
       case L_NUM:
         register_delay_code(_NUM);
-        #ifdef RGBLIGHT_ENABLE
-          rgblight_sethsv(25,255,255);
-          rgblight_mode(1);
-        #endif
         break;
       case L_SYM:
         register_delay_code(_SYM);
-        #ifdef RGBLIGHT_ENABLE
-          rgblight_sethsv(96,255,255);
-          rgblight_mode(1);
-        #endif
         break;
       case L_FUNC:
         register_delay_code(_FUNC);
-        #ifdef RGBLIGHT_ENABLE
-          rgblight_sethsv(331,255,255);
-          rgblight_mode(1);
-        #endif
         break;
     }
     layer_state_old = layer_state;
   }
+
+  #ifdef RGBLIGHT_ENABLE
+    if(!RGBAnimation){
+      switch (layer_state) {
+        case L_BASE:
+          #ifdef RGBLED_BACK
+            led_ripple_effect(0,112,127);
+          #else
+            rgblight_setrgb(0,112,127);
+          #endif
+          break;
+        case L_OPT:
+          #ifdef RGBLED_BACK
+            led_ripple_effect(127,0,100);
+          #else
+            rgblight_setrgb(127,0,100);
+          #endif
+          break;
+        case L_NUM:
+          #ifdef RGBLED_BACK
+            led_ripple_effect(127,23,0);
+          #else
+            rgblight_setrgb(127,23,0);
+          #endif
+          break;
+        case L_SYM:
+          #ifdef RGBLED_BACK
+            led_ripple_effect(0,127,0);
+          #else
+            rgblight_setrgb(0,127,0);
+          #endif
+          break;
+        case L_FUNC:
+          #ifdef RGBLED_BACK
+            led_ripple_effect(127,0,61);
+          #else
+            rgblight_setrgb(127,0,61);
+          #endif
+          break;
+        }
+    }
+  #endif
 }
 
 //SSD1306 OLED update loop, make sure to add #define SSD1306OLED in config.h
diff --git a/keyboards/helix/rev2/keymaps/froggy/rules.mk b/keyboards/helix/rev2/keymaps/froggy/rules.mk
index aa97964134..f460170711 100644
--- a/keyboards/helix/rev2/keymaps/froggy/rules.mk
+++ b/keyboards/helix/rev2/keymaps/froggy/rules.mk
@@ -14,7 +14,7 @@ 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -100,7 +100,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/led_test/config.h b/keyboards/helix/rev2/keymaps/led_test/config.h
index 6da6849a1d..e2bdf2f329 100644
--- a/keyboards/helix/rev2/keymaps/led_test/config.h
+++ b/keyboards/helix/rev2/keymaps/led_test/config.h
@@ -23,4 +23,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 // place overrides here
 
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   //#define RGBLIGHT_EFFECT_BREATHING
+   //#define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   //#define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   //#define RGBLIGHT_EFFECT_SNAKE
+   //#define RGBLIGHT_EFFECT_KNIGHT
+   //#define RGBLIGHT_EFFECT_CHRISTMAS
+   //#define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   #define RGBLIGHT_EFFECT_RGB_TEST   // led_test keymap need only this.
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
+
 #endif /* CONFIG_USER_H */
diff --git a/keyboards/helix/rev2/keymaps/led_test/led_test_init.c b/keyboards/helix/rev2/keymaps/led_test/led_test_init.c
index 1d9cb4ebde..85f5d1aa7e 100644
--- a/keyboards/helix/rev2/keymaps/led_test/led_test_init.c
+++ b/keyboards/helix/rev2/keymaps/led_test/led_test_init.c
@@ -5,7 +5,7 @@ void led_test_init(void) {
     static int scan_count = 0;
     if( scan_count == 2 ) {
 	rgblight_enable_noeeprom();
-	rgblight_mode_noeeprom(35);
+	rgblight_mode_noeeprom(RGBLIGHT_MODE_RGB_TEST);
     }
     if( scan_count < 3 ) scan_count ++;
 }
@@ -15,6 +15,6 @@ void led_test_init(void) {
 // can use this?
 void startup_user(void) {
     rgblight_enable_noeeprom();
-    rgblight_mode_noeeprom(35);
+    rgblight_mode_noeeprom(RGBLIGHT_MODE_RGB_TEST);
 }
 #endif
diff --git a/keyboards/helix/rev2/keymaps/led_test/rules.mk b/keyboards/helix/rev2/keymaps/led_test/rules.mk
index c7ee75c36b..a9cd251bc5 100644
--- a/keyboards/helix/rev2/keymaps/led_test/rules.mk
+++ b/keyboards/helix/rev2/keymaps/led_test/rules.mk
@@ -14,7 +14,7 @@ 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 = no        # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no        # Enable WS2812 RGB underlight.
 SWAP_HANDS_ENABLE = no        # Enable one-hand typing
 
 define HELIX_CUSTOMISE_MSG
@@ -100,7 +100,7 @@ ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
 endif
 
 ifeq ($(strip $(LED_ANIMATIONS)), yes)
-    OPT_DEFS += -DRGBLIGHT_ANIMATIONS
+    OPT_DEFS += -DLED_ANIMATIONS
 endif
 
 ifeq ($(strip $(OLED_ENABLE)), yes)
diff --git a/keyboards/helix/rev2/keymaps/yshrsmz/config.h b/keyboards/helix/rev2/keymaps/yshrsmz/config.h
new file mode 100644
index 0000000000..d70f23c3e3
--- /dev/null
+++ b/keyboards/helix/rev2/keymaps/yshrsmz/config.h
@@ -0,0 +1,38 @@
+/*
+This is the c configuration file for the keymap
+
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+Copyright 2015 Jack Humbert
+
+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/>.
+*/
+#pragma once
+
+/* auto shift config */
+#define AUTO_SHIFT_TIMEOUT 150
+
+// If you need more program area, try select and reduce rgblight modes to use.
+
+// Selection of RGBLIGHT MODE to use.
+#if defined(LED_ANIMATIONS)
+   #define RGBLIGHT_EFFECT_BREATHING
+   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+   #define RGBLIGHT_EFFECT_SNAKE
+   #define RGBLIGHT_EFFECT_KNIGHT
+   #define RGBLIGHT_EFFECT_CHRISTMAS
+   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+   //#define RGBLIGHT_EFFECT_RGB_TEST
+   //#define RGBLIGHT_EFFECT_ALTERNATING
+#endif
diff --git a/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c b/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c
new file mode 100644
index 0000000000..1bde66e885
--- /dev/null
+++ b/keyboards/helix/rev2/keymaps/yshrsmz/keymap.c
@@ -0,0 +1,558 @@
+#include QMK_KEYBOARD_H
+#include "bootloader.h"
+#ifdef PROTOCOL_LUFA
+#include "lufa.h"
+#include "split_util.h"
+#endif
+#ifdef AUDIO_ENABLE
+  #include "audio.h"
+#endif
+#ifdef SSD1306OLED
+  #include "ssd1306.h"
+#endif
+
+extern keymap_config_t keymap_config;
+
+#ifdef RGBLIGHT_ENABLE
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+#endif
+
+extern uint8_t is_master;
+
+// 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.
+enum layer_number {
+    _QWERTY = 0,
+    _LOWER,
+    _RAISE,
+    _FUNC,
+    _ADJUST
+};
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  FUNC,
+  ADJUST,
+  EISU,
+  KANA
+};
+
+enum macro_keycodes {
+  KC_SAMPLEMACRO,
+};
+
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+//Macros
+#define M_SAMPLE M(KC_SAMPLEMACRO)
+
+#if HELIX_ROWS == 5
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* Qwerty
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  |  =   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Tab  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  |  -   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | ESC  |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |   ;  |  '   |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |Shift |   Z  |   X  |   C  |   V  |   B  | Fn   | Fn   |   N  |   M  |   ,  |   .  |   /  |Shift |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * | EISU | Ctrl | Alt  | GUI  |Lower |Space | Bksp |Enter |Space |Raise | GUI  | Alt  | Ctrl | KANA |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_QWERTY] = LAYOUT( \
+      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_EQL, \
+      KC_TAB,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_MINS, \
+      KC_ESC, KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+      KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,    FUNC,    FUNC,    KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+      EISU,    KC_LCTL, KC_LALT, KC_LGUI, LOWER,   KC_SPC,  KC_BSPC, KC_ENT,  KC_SPC,  RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KANA \
+      ),
+
+  /* Lower
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   ~  |   !  |   @  |   #  |   $  |   %  |             |   ^  |   &  |   *  |   (  |   )  |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |   ~  |   !  |   @  |   #  |   $  |   %  |             |   ^  |   &  |   *  |   (  |   )  |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |   _  |   +  |   {  |   }  |  |   |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |  F12 |      |      |      |      |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_LOWER] = LAYOUT( \
+      KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                   KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, \
+      KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                   KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, \
+      KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                     KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+      _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, KC_F12,  _______, _______, _______, _______, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+      ),
+
+  /* Raise
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Bksp |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Del  |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |   -  |   =  |   [  |   ]  |  \   |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |  F7  |  F8  |  F9  |  F10 |  F11 |      |      |  F12 |      |      |      |      |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_RAISE] = LAYOUT( \
+      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+      KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                     KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, KC_BSLS, \
+      _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  _______, _______, KC_F12,  _______, _______, _______, _______, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+      ),
+
+  /* Func
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Bksp |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Del  |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |      |      |      |             | LEFT | DOWN |  UP  |RIGHT | PGUP |      |
+   * |------+------+------+------+------+------|------+------|------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      | HOME | END  |Alt+← |Alt+→ | PGDN |      |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_FUNC] = LAYOUT( \
+      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_BSPC, \
+      KC_GRV,  KC_1,    KC_2,    KC_3,    KC_4,    KC_5,                      KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL, \
+      _______, _______, _______, _______, _______, _______,                   KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_PGUP, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_END,  LALT(KC_LEFT), LALT(KC_RGHT), KC_PGDN, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+      ),
+
+  /* Adjust (Lower + Raise)
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |             |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      | Reset|      |      |      |      |             |      |      |      |      |      |  Del |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |Aud on|Audoff| Mac  |             | Win  |Qwerty|      |      |      |      |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      |RGB ON| HUE+ | SAT+ | VAL+ |
+   * |------+------+------+------+------+------+------+------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | MODE | HUE- | SAT- | VAL- |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_ADJUST] =  LAYOUT( \
+      KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,                     KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12, \
+      _______, RESET,   _______, _______, _______, _______,                   _______, _______, _______, _______, _______, KC_DEL, \
+      _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM,                   AG_SWAP, QWERTY,  _______, _______, _______, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD \
+      )
+};
+
+#elif HELIX_ROWS == 4
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+  /* Qwerty
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   =  |   Q  |   W  |   E  |   R  |   T  |             |   Y  |   U  |   I  |   O  |   P  |  -   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Esc  |   A  |   S  |   D  |   F  |   G  |             |   H  |   J  |   K  |   L  |   ;  |  '   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Shift|   Z  |   X  |   C  |   V  |   B  |             |   N  |   M  |   ,  |   .  |   /  |Enter |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * | EISU | Ctrl | Alt  | GUI  |ESC/Lower | Func | Bksp |Enter |Space |Raise | GUI  | Alt  | Ctrl | KANA |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_QWERTY] = LAYOUT( \
+      KC_EQL,  KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                      KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,    KC_MINS, \
+      KC_TAB,  KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                      KC_H,    KC_J,    KC_K,    KC_L,    KC_SCLN, KC_QUOT, \
+      KC_LSFT, KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,                      KC_N,    KC_M,    KC_COMM, KC_DOT,  KC_SLSH, KC_ENT , \
+      EISU,    KC_LCTL, KC_LALT, KC_LGUI, LT(_LOWER, KC_ESC),   FUNC,  KC_BSPC, KC_ENT,    KC_SPC,  RAISE,   KC_RGUI, KC_RALT, KC_RCTL, KANA \
+      ),
+
+  /* Lower
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   ~  |   !  |   @  |   #  |   $  |   %  |             |   ^  |   &  |   *  |   (  |   )  |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * | Del  |  F1  |  F2  |  F3  |  F4  |  F5  |             |  F6  |   _  |   +  |   {  |   }  |  |   |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |  F7  |  F8  |  F9  |  F10 |  F11 |             |  F12 |      |      |      |      |      |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_LOWER] = LAYOUT( \
+      KC_TILD, KC_EXLM, KC_AT,   KC_HASH, KC_DLR,  KC_PERC,                   KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, \
+      KC_DEL,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,                     KC_F6,   KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+      _______, KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,                    KC_F12,  _______, _______, _______, _______, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, 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 |      |      |      |      |      |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_RAISE] = LAYOUT( \
+      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_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+      ),
+
+    /* Func
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |   `  |   1  |   2  |   3  |   4  |   5  |             |   6  |   7  |   8  |   9  |   0  | Del  |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |      |      |      |             | LEFT | DOWN |  UP  |RIGHT | PGUP |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |      |      |      |             | HOME | END  |Alt+← |Alt+→ | PGDN |      |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | Next | Vol- | Vol+ | Play |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_FUNC] = LAYOUT( \
+      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_LEFT, KC_DOWN, KC_UP,   KC_RGHT, KC_PGUP, _______, \
+      _______, _______, _______, _______, _______, _______,                   KC_HOME, KC_END,  LALT(KC_LEFT), LALT(KC_RGHT), KC_PGDN, _______, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+      ),
+
+  /* Adjust (Lower + Raise)
+   * ,-----------------------------------------.             ,-----------------------------------------.
+   * |      | Reset|      |      |      |      |             |      |      |      |      |      |  Del |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |Aud on|Audoff| Mac  |             | Win  |Qwerty|      |      |      |      |
+   * |------+------+------+------+------+------|             |------+------+------+------+------+------|
+   * |      |      |      |      |      |      |             |      |      |RGB ON| HUE+ | SAT+ | VAL+ |
+   * |------+------+------+------+------+------+-------------+------+------+------+------+------+------|
+   * |      |      |      |      |      |      |      |      |      |      | MODE | HUE- | SAT- | VAL- |
+   * `-------------------------------------------------------------------------------------------------'
+   */
+  [_ADJUST] =  LAYOUT( \
+      _______, RESET,   _______, _______, _______, _______,                   _______, _______, _______, _______, _______, KC_DEL, \
+      _______, _______, _______, AU_ON,   AU_OFF,  AG_NORM,                   AG_SWAP, QWERTY,  _______, _______, _______, _______, \
+      _______, _______, _______, _______, _______, _______,                   _______, _______, RGB_TOG, RGB_HUI, RGB_SAI, RGB_VAI, \
+      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RGB_MOD, RGB_HUD, RGB_SAD, RGB_VAD \
+      )
+};
+
+#else
+#error "undefined keymaps"
+#endif
+
+
+#ifdef AUDIO_ENABLE
+
+float tone_qwerty[][2]     = SONG(QWERTY_SOUND);
+float tone_dvorak[][2]     = SONG(DVORAK_SOUND);
+float tone_colemak[][2]    = SONG(COLEMAK_SOUND);
+float tone_plover[][2]     = SONG(PLOVER_SOUND);
+float tone_plover_gb[][2]  = SONG(PLOVER_GOODBYE_SOUND);
+float music_scale[][2]     = SONG(MUSIC_SCALE_SOUND);
+#endif
+
+// define variables for reactive RGB
+bool TOG_STATUS = false;
+int RGB_current_mode;
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+// Setting ADJUST layer RGB back to default
+void update_tri_layer_RGB(uint8_t layer1, uint8_t layer2, uint8_t layer3) {
+  if (IS_LAYER_ON(layer1) && IS_LAYER_ON(layer2)) {
+    #ifdef RGBLIGHT_ENABLE
+      //rgblight_mode(RGB_current_mode);
+    #endif
+    layer_on(layer3);
+  } else {
+    layer_off(layer3);
+  }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        #ifdef AUDIO_ENABLE
+          PLAY_SONG(tone_qwerty);
+        #endif
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+          //not sure how to have keyboard check mode and set it to a variable, so my work around
+          //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          #ifdef RGBLIGHT_ENABLE
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE + 1);
+          #endif
+        }
+        layer_on(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        #ifdef RGBLIGHT_ENABLE
+          //rgblight_mode(RGB_current_mode);   // revert RGB to initial mode prior to RGB mode change
+        #endif
+        TOG_STATUS = false;
+        layer_off(_LOWER);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        //not sure how to have keyboard check mode and set it to a variable, so my work around
+        //uses another variable that would be set to true after the first time a reactive key is pressed.
+        if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+        } else {
+          TOG_STATUS = !TOG_STATUS;
+          #ifdef RGBLIGHT_ENABLE
+            //rgblight_mode(RGBLIGHT_MODE_SNAKE);
+          #endif
+        }
+        layer_on(_RAISE);
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      } else {
+        #ifdef RGBLIGHT_ENABLE
+          //rgblight_mode(RGB_current_mode);  // revert RGB to initial mode prior to RGB mode change
+        #endif
+        layer_off(_RAISE);
+        TOG_STATUS = false;
+        update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case FUNC:
+      if (record->event.pressed) {
+          layer_on(_FUNC);
+        } else {
+          layer_off(_FUNC);
+        }
+        return false;
+        break;
+    case ADJUST:
+        if (record->event.pressed) {
+          layer_on(_ADJUST);
+        } else {
+          layer_off(_ADJUST);
+        }
+        return false;
+        break;
+      //led operations - RGB mode change now updates the RGB_current_mode to allow the right RGB mode to be set after reactive keys are released
+    case RGB_MOD:
+      #ifdef RGBLIGHT_ENABLE
+        if (record->event.pressed) {
+          rgblight_mode(RGB_current_mode);
+          rgblight_step();
+          RGB_current_mode = rgblight_config.mode;
+        }
+      #endif
+      return false;
+      break;
+    case EISU:
+      if (record->event.pressed) {
+        if(keymap_config.swap_lalt_lgui==false){
+          register_code(KC_LANG2);
+        }else{
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG2);
+      }
+      return false;
+      break;
+    case KANA:
+      if (record->event.pressed) {
+        if(keymap_config.swap_lalt_lgui==false){
+          register_code(KC_LANG1);
+        }else{
+          SEND_STRING(SS_LALT("`"));
+        }
+      } else {
+        unregister_code(KC_LANG1);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
+
+void matrix_init_user(void) {
+    #ifdef AUDIO_ENABLE
+        startup_user();
+    #endif
+    #ifdef RGBLIGHT_ENABLE
+      RGB_current_mode = rgblight_config.mode;
+    #endif
+    //SSD1306 OLED init, make sure to add #define SSD1306OLED in config.h
+    #ifdef SSD1306OLED
+        iota_gfx_init(!has_usb());   // turns on the display
+    #endif
+}
+
+
+#ifdef AUDIO_ENABLE
+
+void startup_user()
+{
+    _delay_ms(20); // gets rid of tick
+}
+
+void shutdown_user()
+{
+    _delay_ms(150);
+    stop_all_notes();
+}
+
+void music_on_user(void)
+{
+    music_scale_user();
+}
+
+void music_scale_user(void)
+{
+    PLAY_SONG(music_scale);
+}
+
+#endif
+
+
+//SSD1306 OLED update loop, make sure to add #define SSD1306OLED in config.h
+#ifdef SSD1306OLED
+
+// hook point for 'led_test' keymap
+//   'default' keymap's led_test_init() is empty function, do nothing
+//   'led_test' keymap's led_test_init() force rgblight_mode_noeeprom(RGBLIGHT_MODE_RGB_TEST);
+__attribute__ ((weak))
+void led_test_init(void) {}
+
+void matrix_scan_user(void) {
+     led_test_init();
+     iota_gfx_task();  // this is what updates the display continuously
+}
+
+void matrix_update(struct CharacterMatrix *dest,
+                          const struct CharacterMatrix *source) {
+  if (memcmp(dest->display, source->display, sizeof(dest->display))) {
+    memcpy(dest->display, source->display, sizeof(dest->display));
+    dest->dirty = true;
+  }
+}
+
+//assign the right code to your layers for OLED display
+#define L_BASE 0
+#define L_LOWER (1<<_LOWER)
+#define L_RAISE (1<<_RAISE)
+#define L_FUNC (1<<_FUNC)
+#define L_ADJUST (1<<_ADJUST)
+#define L_ADJUST_TRI (L_ADJUST|L_RAISE|L_LOWER)
+
+static void render_logo(struct CharacterMatrix *matrix) {
+
+  static char logo[]={
+    0x80,0x81,0x82,0x83,0x84,0x85,0x86,0x87,0x88,0x89,0x8a,0x8b,0x8c,0x8d,0x8e,0x8f,0x90,0x91,0x92,0x93,0x94,
+    0xa0,0xa1,0xa2,0xa3,0xa4,0xa5,0xa6,0xa7,0xa8,0xa9,0xaa,0xab,0xac,0xad,0xae,0xaf,0xb0,0xb1,0xb2,0xb3,0xb4,
+    0xc0,0xc1,0xc2,0xc3,0xc4,0xc5,0xc6,0xc7,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce,0xcf,0xd0,0xd1,0xd2,0xd3,0xd4,
+    0};
+  matrix_write(matrix, logo);
+  //matrix_write_P(&matrix, PSTR(" Split keyboard kit"));
+}
+
+
+
+void render_status(struct CharacterMatrix *matrix) {
+
+  // Render to mode icon
+  static char logo[][2][3]={{{0x95,0x96,0},{0xb5,0xb6,0}},{{0x97,0x98,0},{0xb7,0xb8,0}}};
+  if(keymap_config.swap_lalt_lgui==false){
+    matrix_write(matrix, logo[0][0]);
+    matrix_write_P(matrix, PSTR("\n"));
+    matrix_write(matrix, logo[0][1]);
+  }else{
+    matrix_write(matrix, logo[1][0]);
+    matrix_write_P(matrix, PSTR("\n"));
+    matrix_write(matrix, logo[1][1]);
+  }
+
+  // Define layers here, Have not worked out how to have text displayed for each layer. Copy down the number you see and add a case for it below
+  char buf[40];
+  snprintf(buf,sizeof(buf), "Undef-%ld", layer_state);
+  matrix_write_P(matrix, PSTR("\nLayer: "));
+    switch (layer_state) {
+        case L_BASE:
+           matrix_write_P(matrix, PSTR("Default"));
+           break;
+        case L_RAISE:
+           matrix_write_P(matrix, PSTR("Raise"));
+           break;
+        case L_LOWER:
+           matrix_write_P(matrix, PSTR("Lower"));
+           break;
+        case L_FUNC:
+            matrix_write_P(matrix, PSTR("Func"));
+            break;
+        case L_ADJUST:
+        case L_ADJUST_TRI:
+           matrix_write_P(matrix, PSTR("Adjust"));
+           break;
+        default:
+           matrix_write(matrix, buf);
+    }
+
+  // Host Keyboard LED Status
+  char led[40];
+    snprintf(led, sizeof(led), "\n%s  %s  %s",
+            (host_keyboard_leds() & (1<<USB_LED_NUM_LOCK)) ? "NUMLOCK" : "       ",
+            (host_keyboard_leds() & (1<<USB_LED_CAPS_LOCK)) ? "CAPS" : "    ",
+            (host_keyboard_leds() & (1<<USB_LED_SCROLL_LOCK)) ? "SCLK" : "    ");
+  matrix_write(matrix, led);
+}
+
+
+void iota_gfx_task_user(void) {
+  struct CharacterMatrix matrix;
+
+#if DEBUG_TO_SCREEN
+  if (debug_enable) {
+    return;
+  }
+#endif
+
+  matrix_clear(&matrix);
+  if(is_master){
+    render_status(&matrix);
+  }else{
+    render_logo(&matrix);
+  }
+  matrix_update(&display, &matrix);
+}
+
+#endif
diff --git a/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk b/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk
new file mode 100644
index 0000000000..3f390b48f8
--- /dev/null
+++ b/keyboards/helix/rev2/keymaps/yshrsmz/rules.mk
@@ -0,0 +1,121 @@
+
+# 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 = no       # Audio control and System control(+450)
+CONSOLE_ENABLE = no         # Console for debug(+400)
+COMMAND_ENABLE = no        # Commands for debug and configuration
+NKRO_ENABLE = no            # 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 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 = no        # Enable WS2812 RGB underlight.
+SWAP_HANDS_ENABLE = no        # Enable one-hand typing
+
+define HELIX_CUSTOMISE_MSG
+  $(info Helix customize)
+  $(info -  OLED_ENABLE=$(OLED_ENABLE))
+  $(info -  LED_BACK_ENABLE=$(LED_BACK_ENABLE))
+  $(info -  LED_UNDERGLOW_ENABLE=$(LED_UNDERGLOW_ENABLE))
+  $(info -  LED_ANIMATION=$(LED_ANIMATIONS))
+  $(info -  IOS_DEVICE_ENABLE=$(IOS_DEVICE_ENABLE))
+endef
+
+# Helix keyboard customize
+# you can edit follows 7 Variables
+#  jp: 以下の7つの変数を必要に応じて編集します。
+HELIX_ROWS = 4              # Helix Rows is 4 or 5
+OLED_ENABLE = yes            # OLED_ENABLE
+LOCAL_GLCDFONT = no         # use each keymaps "helixfont.h" insted of "common/glcdfont.c"
+LED_BACK_ENABLE = no        # LED backlight (Enable WS2812 RGB underlight.)
+LED_UNDERGLOW_ENABLE = no   # LED underglow (Enable WS2812 RGB underlight.)
+LED_ANIMATIONS = no        # LED animations
+IOS_DEVICE_ENABLE = no      # connect to IOS device (iPad,iPhone)
+
+####  LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE.
+####    Do not enable these with audio at the same time.
+
+### Helix keyboard 'default' keymap: convenient command line option
+##    make HELIX=<options> helix:defualt
+##    option= oled | back | under | na | ios
+##    ex.
+##      make HELIX=oled          helix:defualt
+##      make HELIX=oled,back     helix:defualt
+##      make HELIX=oled,under    helix:defualt
+##      make HELIX=oled,back,na  helix:defualt
+##      make HELIX=oled,back,ios helix:defualt
+##
+ifneq ($(strip $(HELIX)),)
+  ifeq ($(findstring oled,$(HELIX)), oled)
+    OLED_ENABLE = yes
+  endif
+  ifeq ($(findstring back,$(HELIX)), back)
+    LED_BACK_ENABLE = yes
+  else ifeq ($(findstring under,$(HELIX)), under)
+    LED_UNDERGLOW_ENABLE = yes
+  endif
+  ifeq ($(findstring na,$(HELIX)), na)
+    LED_ANIMATIONS = no
+  endif
+  ifeq ($(findstring ios,$(HELIX)), ios)
+    IOS_DEVICE_ENABLE = yes
+  endif
+  $(eval $(call HELIX_CUSTOMISE_MSG))
+  $(info )
+endif
+
+# Uncomment these for checking
+#   jp: コンパイル時にカスタマイズの状態を表示したい時はコメントをはずします。
+# $(eval $(call HELIX_CUSTOMISE_MSG))
+# $(info )
+
+ifneq ($(strip $(HELIX_ROWS)), 4)
+  ifneq ($(strip $(HELIX_ROWS)), 5)
+    $(error HELIX_ROWS = $(strip $(HELIX_ROWS)) is unexpected value)
+  endif
+endif
+OPT_DEFS += -DHELIX_ROWS=$(strip $(HELIX_ROWS))
+
+ifeq ($(strip $(LED_BACK_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+  OPT_DEFS += -DRGBLED_BACK
+  ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+    $(eval $(call HELIX_CUSTOMISE_MSG))
+    $(error LED_BACK_ENABLE and LED_UNDERGLOW_ENABLE both 'yes')
+  endif
+else ifeq ($(strip $(LED_UNDERGLOW_ENABLE)), yes)
+  RGBLIGHT_ENABLE = yes
+else
+  RGBLIGHT_ENABLE = no
+endif
+
+ifeq ($(strip $(IOS_DEVICE_ENABLE)), yes)
+    OPT_DEFS += -DIOS_DEVICE_ENABLE
+endif
+
+ifeq ($(strip $(LED_ANIMATIONS)), yes)
+    OPT_DEFS += -DLED_ANIMATIONS
+endif
+
+ifeq ($(strip $(OLED_ENABLE)), yes)
+    OPT_DEFS += -DOLED_ENABLE
+endif
+
+ifeq ($(strip $(LOCAL_GLCDFONT)), yes)
+    OPT_DEFS += -DLOCAL_GLCDFONT
+endif
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+AUTO_SHIFT_ENABLE = yes
+
+# Uncomment these for debugging
+# $(info -- RGBLIGHT_ENABLE=$(RGBLIGHT_ENABLE))
+# $(info -- OPT_DEFS=$(OPT_DEFS))
+# $(info )
diff --git a/keyboards/helix/rev2/matrix.c b/keyboards/helix/rev2/matrix.c
index 8a1ce3af1e..322959dbbb 100644
--- a/keyboards/helix/rev2/matrix.c
+++ b/keyboards/helix/rev2/matrix.c
@@ -20,6 +20,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 #include <stdint.h>
 #include <stdbool.h>
+#include <string.h>
 #include <avr/io.h>
 #include <avr/wdt.h>
 #include <avr/interrupt.h>
@@ -34,7 +35,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #ifdef USE_MATRIX_I2C
 #  include "i2c.h"
 #else // USE_SERIAL
-#  include "serial.h"
+#  include "split_scomm.h"
 #endif
 
 #ifndef DEBOUNCE
@@ -102,6 +103,8 @@ void matrix_init(void)
     init_cols();
 
     TX_RX_LED_INIT;
+    TXLED0;
+    RXLED0;
 
     // initialize matrix state: all keys off
     for (uint8_t i=0; i < MATRIX_ROWS; i++) {
@@ -178,17 +181,20 @@ i2c_error: // the cable is disconnceted, or something else went wrong
 
 #else // USE_SERIAL
 
-int serial_transaction(void) {
+int serial_transaction(int master_changed) {
     int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+    int ret=serial_update_buffers(master_changed);
+#else
     int ret=serial_update_buffers();
+#endif
     if (ret ) {
-        if(ret==2)RXLED1;
+        if(ret==2) RXLED1;
         return 1;
     }
-RXLED0;
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        matrix[slaveOffset+i] = serial_slave_buffer[i];
-    }
+    RXLED0;
+    memcpy(&matrix[slaveOffset],
+        (void *)serial_slave_buffer, sizeof(serial_slave_buffer));
     return 0;
 }
 #endif
@@ -199,19 +205,9 @@ uint8_t matrix_scan(void)
         matrix_master_scan();
     }else{
         matrix_slave_scan();
-
-//        if(serial_slave_DATA_CORRUPT()){
-//          TXLED0;
-          int offset = (isLeftHand) ? ROWS_PER_HAND : 0;
-
-          for (int i = 0; i < ROWS_PER_HAND; ++i) {
-              matrix[offset+i] = serial_master_buffer[i];
-          }
-
-//        }else{
-//          TXLED1;
-//        }
-
+        int offset = (isLeftHand) ? ROWS_PER_HAND : 0;
+        memcpy(&matrix[offset],
+               (void *)serial_master_buffer, sizeof(serial_master_buffer));
         matrix_scan_quantum();
     }
     return 1;
@@ -221,6 +217,7 @@ uint8_t matrix_scan(void)
 uint8_t matrix_master_scan(void) {
 
     int ret = _matrix_scan();
+    int mchanged = 1;
 
 #ifndef KEYBOARD_helix_rev1
     int offset = (isLeftHand) ? 0 : ROWS_PER_HAND;
@@ -231,16 +228,19 @@ uint8_t matrix_master_scan(void) {
 //        i2c_slave_buffer[i] = matrix[offset+i];
 //    }
 #else // USE_SERIAL
-    for (int i = 0; i < ROWS_PER_HAND; ++i) {
-        serial_master_buffer[i] = matrix[offset+i];
-    }
+  #ifdef SERIAL_USE_MULTI_TRANSACTION
+    mchanged = memcmp((void *)serial_master_buffer,
+		      &matrix[offset], sizeof(serial_master_buffer));
+  #endif
+    memcpy((void *)serial_master_buffer,
+	   &matrix[offset], sizeof(serial_master_buffer));
 #endif
 #endif
 
 #ifdef USE_MATRIX_I2C
     if( i2c_transaction() ) {
 #else // USE_SERIAL
-    if( serial_transaction() ) {
+    if( serial_transaction(mchanged) ) {
 #endif
         // turn on the indicator led when halves are disconnected
         TXLED1;
@@ -274,9 +274,19 @@ void matrix_slave_scan(void) {
         i2c_slave_buffer[i] = matrix[offset+i];
     }
 #else // USE_SERIAL
+  #ifdef SERIAL_USE_MULTI_TRANSACTION
+    int change = 0;
+  #endif
     for (int i = 0; i < ROWS_PER_HAND; ++i) {
+  #ifdef SERIAL_USE_MULTI_TRANSACTION
+        if( serial_slave_buffer[i] != matrix[offset+i] )
+	    change = 1;
+  #endif
         serial_slave_buffer[i] = matrix[offset+i];
     }
+  #ifdef SERIAL_USE_MULTI_TRANSACTION
+    slave_buffer_change_count += change;
+  #endif
 #endif
 }
 
diff --git a/keyboards/helix/rev2/rev2.c b/keyboards/helix/rev2/rev2.c
index 75765f1d35..abaa02cdb1 100644
--- a/keyboards/helix/rev2/rev2.c
+++ b/keyboards/helix/rev2/rev2.c
@@ -2,6 +2,12 @@
 
 
 #ifdef SSD1306OLED
+#include "ssd1306.h"
+
+bool process_record_kb(uint16_t keycode, keyrecord_t *record) {
+	return process_record_gfx(keycode,record) && process_record_user(keycode, record);
+}
+
 void led_set_kb(uint8_t usb_led) {
     // put your keyboard LED indicator (ex: Caps Lock LED) toggling code here
     //led_set_user(usb_led);
diff --git a/keyboards/helix/rev2/rules.mk b/keyboards/helix/rev2/rules.mk
index 6ab01f44b4..5582a0f9c4 100644
--- a/keyboards/helix/rev2/rules.mk
+++ b/keyboards/helix/rev2/rules.mk
@@ -1,3 +1,3 @@
-SRC += rev2/matrix.c \
-	   rev2/split_util.c \
-	   ws2812.c
+SRC += rev2/matrix.c
+SRC += rev2/split_util.c
+SRC += rev2/split_scomm.c
diff --git a/keyboards/helix/rev2/serial_config.h b/keyboards/helix/rev2/serial_config.h
index 82c6e4e836..37135213d5 100644
--- a/keyboards/helix/rev2/serial_config.h
+++ b/keyboards/helix/rev2/serial_config.h
@@ -1,16 +1,8 @@
-#ifndef SOFT_SERIAL_CONFIG_H
-#define SOFT_SERIAL_CONFIG_H
+//// #error rev2 serial config
 
+#ifndef SOFT_SERIAL_PIN
 /* Soft Serial defines */
-#define SERIAL_PIN_DDR DDRD
-#define SERIAL_PIN_PORT PORTD
-#define SERIAL_PIN_INPUT PIND
-#define SERIAL_PIN_MASK _BV(PD2)
-#define SERIAL_PIN_INTERRUPT INT2_vect
-
-#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
-#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
-
-//// #error rev2 serial config
+#define SOFT_SERIAL_PIN D2
 
-#endif /* SOFT_SERIAL_CONFIG_H */
+#define SERIAL_USE_MULTI_TRANSACTION
+#endif
diff --git a/keyboards/helix/rev2/serial_config_simpleapi.h b/keyboards/helix/rev2/serial_config_simpleapi.h
new file mode 100644
index 0000000000..e2d22a41e7
--- /dev/null
+++ b/keyboards/helix/rev2/serial_config_simpleapi.h
@@ -0,0 +1,8 @@
+#ifndef SERIAL_CONFIG_SIMPLEAPI_H
+#define SERIAL_CONFIG_SIMPLEAPI_H
+
+#undef SERIAL_USE_MULTI_TRANSACTION
+#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
+#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
+
+#endif // SERIAL_CONFIG_SIMPLEAPI_H
diff --git a/keyboards/helix/rev2/split_scomm.c b/keyboards/helix/rev2/split_scomm.c
new file mode 100644
index 0000000000..ada7867960
--- /dev/null
+++ b/keyboards/helix/rev2/split_scomm.c
@@ -0,0 +1,92 @@
+#ifdef USE_SERIAL
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+/* --- USE flexible API (using multi-type transaction function) --- */
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stddef.h>
+#include <split_scomm.h>
+#include "serial.h"
+#ifdef CONSOLE_ENABLE
+  #include <print.h>
+#endif
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+uint8_t volatile status_com = 0;
+uint8_t volatile status1 = 0;
+uint8_t slave_buffer_change_count = 0;
+uint8_t s_change_old = 0xff;
+uint8_t s_change_new = 0xff;
+
+SSTD_t transactions[] = {
+#define GET_SLAVE_STATUS 0
+    /* master buffer not changed, only recive slave_buffer_change_count */
+    { (uint8_t *)&status_com,
+      0, NULL,
+      sizeof(slave_buffer_change_count), &slave_buffer_change_count,
+    },
+#define PUT_MASTER_GET_SLAVE_STATUS 1
+    /* master buffer changed need send, and recive slave_buffer_change_count  */
+    { (uint8_t *)&status_com,
+      sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
+      sizeof(slave_buffer_change_count), &slave_buffer_change_count,
+    },
+#define GET_SLAVE_BUFFER 2
+    /* recive serial_slave_buffer */
+    { (uint8_t *)&status1,
+      0, NULL,
+      sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
+    }
+};
+
+void serial_master_init(void)
+{
+    soft_serial_initiator_init(transactions, TID_LIMIT(transactions));
+}
+
+void serial_slave_init(void)
+{
+    soft_serial_target_init(transactions, TID_LIMIT(transactions));
+}
+
+// 0 => no error
+// 1 => slave did not respond
+// 2 => checksum error
+int serial_update_buffers(int master_update)
+{
+    int status, smatstatus;
+    static int need_retry = 0;
+
+    if( s_change_old != s_change_new ) {
+        smatstatus = soft_serial_transaction(GET_SLAVE_BUFFER);
+        if( smatstatus == TRANSACTION_END ) {
+            s_change_old = s_change_new;
+#ifdef CONSOLE_ENABLE
+            uprintf("slave matrix = %b %b %b %b %b\n",
+                    serial_slave_buffer[0], serial_slave_buffer[1],
+                    serial_slave_buffer[2], serial_slave_buffer[3],
+                    serial_slave_buffer[4] );
+#endif
+        }
+    } else {
+        // serial_slave_buffer dosen't change
+        smatstatus = TRANSACTION_END; // dummy status
+    }
+
+    if( !master_update && !need_retry) {
+        status = soft_serial_transaction(GET_SLAVE_STATUS);
+    } else {
+        status = soft_serial_transaction(PUT_MASTER_GET_SLAVE_STATUS);
+    }
+    if( status == TRANSACTION_END ) {
+        s_change_new = slave_buffer_change_count;
+        need_retry = 0;
+    } else {
+        need_retry = 1;
+    }
+    return smatstatus;
+}
+
+#endif // SERIAL_USE_MULTI_TRANSACTION
+#endif /* USE_SERIAL */
diff --git a/keyboards/helix/rev2/split_scomm.h b/keyboards/helix/rev2/split_scomm.h
new file mode 100644
index 0000000000..873d8939d8
--- /dev/null
+++ b/keyboards/helix/rev2/split_scomm.h
@@ -0,0 +1,24 @@
+#ifndef SPLIT_COMM_H
+#define SPLIT_COMM_H
+
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+/* --- USE Simple API (OLD API, compatible with let's split serial.c) --- */
+#include "serial.h"
+
+#else
+/* --- USE flexible API (using multi-type transaction function) --- */
+// Buffers for master - slave communication
+#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
+#define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
+
+extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+extern uint8_t slave_buffer_change_count;
+
+void serial_master_init(void);
+void serial_slave_init(void);
+int serial_update_buffers(int master_changed);
+
+#endif
+
+#endif /* SPLIT_COMM_H */
diff --git a/keyboards/helix/rev2/split_util.c b/keyboards/helix/rev2/split_util.c
index beb39fa005..e1ff8b4379 100644
--- a/keyboards/helix/rev2/split_util.c
+++ b/keyboards/helix/rev2/split_util.c
@@ -11,7 +11,7 @@
 #ifdef USE_MATRIX_I2C
 #  include "i2c.h"
 #else
-#  include "serial.h"
+#  include "split_scomm.h"
 #endif
 
 volatile bool isLeftHand = true;
diff --git a/keyboards/helix/rules.mk b/keyboards/helix/rules.mk
index c35f93fb07..be234e60ec 100644
--- a/keyboards/helix/rules.mk
+++ b/keyboards/helix/rules.mk
@@ -1,6 +1,6 @@
-SRC += i2c.c \
-	   serial.c \
-	   ssd1306.c
+SRC += i2c.c
+SRC += serial.c
+SRC += ssd1306.c
 
 # MCU name
 #MCU = at90usb1287
@@ -62,7 +62,7 @@ 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 = no       # Enable WS2812 RGB underlight.  Do not enable this with audio at the same time.
+RGBLIGHT_ENABLE = no       # Enable WS2812 RGB underlight.
 SUBPROJECT_rev1 = no
 USE_I2C = yes
 # Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
diff --git a/keyboards/helix/serial.c b/keyboards/helix/serial.c
index 5919415877..6006ebf1bd 100644
--- a/keyboards/helix/serial.c
+++ b/keyboards/helix/serial.c
@@ -1,5 +1,10 @@
 /*
  * WARNING: be careful changing this code, it is very timing dependent
+ *
+ * 2018-10-28 checked
+ *  avr-gcc 4.9.2
+ *  avr-gcc 5.4.0
+ *  avr-gcc 7.3.0
  */
 
 #ifndef F_CPU
@@ -9,133 +14,304 @@
 #include <avr/io.h>
 #include <avr/interrupt.h>
 #include <util/delay.h>
+#include <stddef.h>
 #include <stdbool.h>
 #include "serial.h"
+//#include <pro_micro.h>
+
+#ifdef SOFT_SERIAL_PIN
+
+#ifdef __AVR_ATmega32U4__
+  // if using ATmega32U4 I2C, can not use PD0 and PD1 in soft serial.
+  #ifdef USE_I2C
+    #if SOFT_SERIAL_PIN == D0 || SOFT_SERIAL_PIN == D1
+      #error Using ATmega32U4 I2C, so can not use PD0, PD1
+    #endif
+  #endif
+
+  #if SOFT_SERIAL_PIN >= D0 && SOFT_SERIAL_PIN <= D3
+    #define SERIAL_PIN_DDR   DDRD
+    #define SERIAL_PIN_PORT  PORTD
+    #define SERIAL_PIN_INPUT PIND
+    #if SOFT_SERIAL_PIN == D0
+      #define SERIAL_PIN_MASK _BV(PD0)
+      #define EIMSK_BIT       _BV(INT0)
+      #define EICRx_BIT       (~(_BV(ISC00) | _BV(ISC01)))
+      #define SERIAL_PIN_INTERRUPT INT0_vect
+    #elif  SOFT_SERIAL_PIN == D1
+      #define SERIAL_PIN_MASK _BV(PD1)
+      #define EIMSK_BIT       _BV(INT1)
+      #define EICRx_BIT       (~(_BV(ISC10) | _BV(ISC11)))
+      #define SERIAL_PIN_INTERRUPT INT1_vect
+    #elif  SOFT_SERIAL_PIN == D2
+      #define SERIAL_PIN_MASK _BV(PD2)
+      #define EIMSK_BIT       _BV(INT2)
+      #define EICRx_BIT       (~(_BV(ISC20) | _BV(ISC21)))
+      #define SERIAL_PIN_INTERRUPT INT2_vect
+    #elif  SOFT_SERIAL_PIN == D3
+      #define SERIAL_PIN_MASK _BV(PD3)
+      #define EIMSK_BIT       _BV(INT3)
+      #define EICRx_BIT       (~(_BV(ISC30) | _BV(ISC31)))
+      #define SERIAL_PIN_INTERRUPT INT3_vect
+    #endif
+  #elif  SOFT_SERIAL_PIN == E6
+    #define SERIAL_PIN_DDR   DDRE
+    #define SERIAL_PIN_PORT  PORTE
+    #define SERIAL_PIN_INPUT PINE
+    #define SERIAL_PIN_MASK  _BV(PE6)
+    #define EIMSK_BIT        _BV(INT6)
+    #define EICRx_BIT        (~(_BV(ISC60) | _BV(ISC61)))
+    #define SERIAL_PIN_INTERRUPT INT6_vect
+  #else
+  #error invalid SOFT_SERIAL_PIN value
+  #endif
 
-#ifdef USE_SERIAL
+#else
+ #error serial.c now support ATmega32U4 only
+#endif
+
+//////////////// for backward compatibility ////////////////////////////////
+#if !defined(SERIAL_USE_SINGLE_TRANSACTION) && !defined(SERIAL_USE_MULTI_TRANSACTION)
+/* --- USE OLD API (compatible with let's split serial.c) */
+  #if SERIAL_SLAVE_BUFFER_LENGTH > 0
+  uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+  #endif
+  #if SERIAL_MASTER_BUFFER_LENGTH > 0
+  uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+  #endif
+  uint8_t volatile status0 = 0;
+
+SSTD_t transactions[] = {
+    { (uint8_t *)&status0,
+  #if SERIAL_MASTER_BUFFER_LENGTH > 0
+      sizeof(serial_master_buffer), (uint8_t *)serial_master_buffer,
+  #else
+      0, (uint8_t *)NULL,
+  #endif
+  #if SERIAL_SLAVE_BUFFER_LENGTH > 0
+      sizeof(serial_slave_buffer), (uint8_t *)serial_slave_buffer
+  #else
+      0, (uint8_t *)NULL,
+  #endif
+  }
+};
+
+void serial_master_init(void)
+{ soft_serial_initiator_init(transactions, TID_LIMIT(transactions)); }
+
+void serial_slave_init(void)
+{ soft_serial_target_init(transactions, TID_LIMIT(transactions)); }
+
+// 0 => no error
+// 1 => slave did not respond
+// 2 => checksum error
+int serial_update_buffers()
+{
+    int result;
+    result = soft_serial_transaction();
+    return result;
+}
+
+#endif // end of OLD API (compatible with let's split serial.c)
+////////////////////////////////////////////////////////////////////////////
 
+#define ALWAYS_INLINE __attribute__((always_inline))
+#define NO_INLINE __attribute__((noinline))
 #define _delay_sub_us(x)    __builtin_avr_delay_cycles(x)
 
-// Serial pulse period in microseconds.
-#define SELECT_SERIAL_SPEED 1
-#if SELECT_SERIAL_SPEED == 0
+// parity check
+#define ODD_PARITY 1
+#define EVEN_PARITY 0
+#define PARITY EVEN_PARITY
+
+#ifdef SERIAL_DELAY
+  // custom setup in config.h
+  // #define TID_SEND_ADJUST 2
+  // #define SERIAL_DELAY 6             // micro sec
+  // #define READ_WRITE_START_ADJUST 30 // cycles
+  // #define READ_WRITE_WIDTH_ADJUST 8 // cycles
+#else
+// ============ Standard setups ============
+
+#ifndef SELECT_SOFT_SERIAL_SPEED
+#define SELECT_SOFT_SERIAL_SPEED 1
+//  0: about 189kbps
+//  1: about 137kbps (default)
+//  2: about 75kbps
+//  3: about 39kbps
+//  4: about 26kbps
+//  5: about 20kbps
+#endif
+
+#if __GNUC__ < 6
+  #define TID_SEND_ADJUST 14
+#else
+  #define TID_SEND_ADJUST 2
+#endif
+
+#if SELECT_SOFT_SERIAL_SPEED == 0
   // Very High speed
   #define SERIAL_DELAY 4             // micro sec
-  #define READ_WRITE_START_ADJUST 30 // cycles
-  #define READ_WRITE_WIDTH_ADJUST 10 // cycles
-#elif SELECT_SERIAL_SPEED == 1
+  #if __GNUC__ < 6
+    #define READ_WRITE_START_ADJUST 33 // cycles
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_START_ADJUST 34 // cycles
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
+#elif SELECT_SOFT_SERIAL_SPEED == 1
   // High speed
   #define SERIAL_DELAY 6             // micro sec
-  #define READ_WRITE_START_ADJUST 23 // cycles
-  #define READ_WRITE_WIDTH_ADJUST 10 // cycles
-#elif SELECT_SERIAL_SPEED == 2
+  #if __GNUC__ < 6
+    #define READ_WRITE_START_ADJUST 30 // cycles
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_START_ADJUST 33 // cycles
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
+#elif SELECT_SOFT_SERIAL_SPEED == 2
   // Middle speed
   #define SERIAL_DELAY 12            // micro sec
-  #define READ_WRITE_START_ADJUST 25 // cycles
-  #define READ_WRITE_WIDTH_ADJUST 10 // cycles
-#elif SELECT_SERIAL_SPEED == 3
+  #define READ_WRITE_START_ADJUST 30 // cycles
+  #if __GNUC__ < 6
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
+#elif SELECT_SOFT_SERIAL_SPEED == 3
   // Low speed
   #define SERIAL_DELAY 24            // micro sec
-  #define READ_WRITE_START_ADJUST 25 // cycles
-  #define READ_WRITE_WIDTH_ADJUST 10 // cycles
-#elif SELECT_SERIAL_SPEED == 4
+  #define READ_WRITE_START_ADJUST 30 // cycles
+  #if __GNUC__ < 6
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
+#elif SELECT_SOFT_SERIAL_SPEED == 4
   // Very Low speed
-  #define SERIAL_DELAY 50            // micro sec
-  #define READ_WRITE_START_ADJUST 25 // cycles
-  #define READ_WRITE_WIDTH_ADJUST 10 // cycles
+  #define SERIAL_DELAY 36            // micro sec
+  #define READ_WRITE_START_ADJUST 30 // cycles
+  #if __GNUC__ < 6
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
+#elif SELECT_SOFT_SERIAL_SPEED == 5
+  // Ultra Low speed
+  #define SERIAL_DELAY 48            // micro sec
+  #define READ_WRITE_START_ADJUST 30 // cycles
+  #if __GNUC__ < 6
+    #define READ_WRITE_WIDTH_ADJUST 3 // cycles
+  #else
+    #define READ_WRITE_WIDTH_ADJUST 7 // cycles
+  #endif
 #else
-#error Illegal Serial Speed
-#endif
-
+#error invalid SELECT_SOFT_SERIAL_SPEED value
+#endif /* SELECT_SOFT_SERIAL_SPEED */
+#endif /* SERIAL_DELAY */
 
 #define SERIAL_DELAY_HALF1 (SERIAL_DELAY/2)
 #define SERIAL_DELAY_HALF2 (SERIAL_DELAY - SERIAL_DELAY/2)
 
-#define SLAVE_INT_WIDTH 1
-#define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
-
-uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
-uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+#define SLAVE_INT_WIDTH_US 1
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+  #define SLAVE_INT_RESPONSE_TIME SERIAL_DELAY
+#else
+  #define SLAVE_INT_ACK_WIDTH_UNIT 2
+  #define SLAVE_INT_ACK_WIDTH 4
+#endif
 
-#define SLAVE_DATA_CORRUPT (1<<0)
-volatile uint8_t status = 0;
+static SSTD_t *Transaction_table = NULL;
+static uint8_t Transaction_table_size = 0;
 
+inline static void serial_delay(void) ALWAYS_INLINE;
 inline static
 void serial_delay(void) {
   _delay_us(SERIAL_DELAY);
 }
 
+inline static void serial_delay_half1(void) ALWAYS_INLINE;
 inline static
 void serial_delay_half1(void) {
   _delay_us(SERIAL_DELAY_HALF1);
 }
 
+inline static void serial_delay_half2(void) ALWAYS_INLINE;
 inline static
 void serial_delay_half2(void) {
   _delay_us(SERIAL_DELAY_HALF2);
 }
 
+inline static void serial_output(void) ALWAYS_INLINE;
 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_with_pullup(void) ALWAYS_INLINE;
 inline static
 void serial_input_with_pullup(void) {
   SERIAL_PIN_DDR  &= ~SERIAL_PIN_MASK;
   SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
 }
 
+inline static uint8_t serial_read_pin(void) ALWAYS_INLINE;
 inline static
 uint8_t serial_read_pin(void) {
   return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
 }
 
+inline static void serial_low(void) ALWAYS_INLINE;
 inline static
 void serial_low(void) {
   SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
 }
 
+inline static void serial_high(void) ALWAYS_INLINE;
 inline static
 void serial_high(void) {
   SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
 }
 
-void serial_master_init(void) {
-  serial_output();
-  serial_high();
+void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size)
+{
+    Transaction_table = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+    serial_output();
+    serial_high();
 }
 
-void serial_slave_init(void) {
-  serial_input_with_pullup();
-
-#if SERIAL_PIN_MASK == _BV(PD0)
-  // Enable INT0
-  EIMSK |= _BV(INT0);
-  // Trigger on falling edge of INT0
-  EICRA &= ~(_BV(ISC00) | _BV(ISC01));
-#elif SERIAL_PIN_MASK == _BV(PD2)
-  // Enable INT2
-  EIMSK |= _BV(INT2);
-  // Trigger on falling edge of INT2
-  EICRA &= ~(_BV(ISC20) | _BV(ISC21));
+void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size)
+{
+    Transaction_table = sstd_table;
+    Transaction_table_size = (uint8_t)sstd_table_size;
+    serial_input_with_pullup();
+
+    // Enable INT0-INT3,INT6
+    EIMSK |= EIMSK_BIT;
+#if SERIAL_PIN_MASK == _BV(PE6)
+    // Trigger on falling edge of INT6
+    EICRB &= EICRx_BIT;
 #else
- #error unknown SERIAL_PIN_MASK value
+    // Trigger on falling edge of INT0-INT3
+    EICRA &= EICRx_BIT;
 #endif
 }
 
 // Used by the sender to synchronize timing with the reciver.
+static void sync_recv(void) NO_INLINE;
 static
 void sync_recv(void) {
-  for (int i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) {
+  for (uint8_t i = 0; i < SERIAL_DELAY*5 && serial_read_pin(); i++ ) {
   }
-  // This shouldn't hang if the slave disconnects because the
-  // serial line will float to high if the slave does disconnect.
+  // This shouldn't hang if the target disconnects because the
+  // serial line will float to high if the target does disconnect.
   while (!serial_read_pin());
 }
 
 // Used by the reciver to send a synchronization signal to the sender.
+static void sync_send(void) NO_INLINE;
 static
 void sync_send(void) {
   serial_low();
@@ -144,152 +320,271 @@ void sync_send(void) {
 }
 
 // Reads a byte from the serial line
-static
-uint8_t serial_read_byte(void) {
-  uint8_t byte = 0;
+static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) NO_INLINE;
+static uint8_t serial_read_chunk(uint8_t *pterrcount, uint8_t bit) {
+    uint8_t byte, i, p, pb;
+
   _delay_sub_us(READ_WRITE_START_ADJUST);
-  for ( uint8_t i = 0; i < 8; ++i) {
-    serial_delay_half1();   // read the middle of pulses
-    byte = (byte << 1) | serial_read_pin();
-    _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
-    serial_delay_half2();
+  for( i = 0, byte = 0, p = PARITY; i < bit; i++ ) {
+      serial_delay_half1();   // read the middle of pulses
+      if( serial_read_pin() ) {
+          byte = (byte << 1) | 1; p ^= 1;
+      } else {
+          byte = (byte << 1) | 0; p ^= 0;
+      }
+      _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
+      serial_delay_half2();
   }
+  /* recive parity bit */
+  serial_delay_half1();   // read the middle of pulses
+  pb = serial_read_pin();
+  _delay_sub_us(READ_WRITE_WIDTH_ADJUST);
+  serial_delay_half2();
+
+  *pterrcount += (p != pb)? 1 : 0;
+
   return byte;
 }
 
 // Sends a byte with MSB ordering
-static
-void serial_write_byte(uint8_t data) {
-  uint8_t b = 1<<7;
-  while( b ) {
-    if(data & b) {
-      serial_high();
-    } else {
-      serial_low();
+void serial_write_chunk(uint8_t data, uint8_t bit) NO_INLINE;
+void serial_write_chunk(uint8_t data, uint8_t bit) {
+    uint8_t b, p;
+    for( p = PARITY, b = 1<<(bit-1); b ; b >>= 1) {
+        if(data & b) {
+            serial_high(); p ^= 1;
+        } else {
+            serial_low();  p ^= 0;
+        }
+        serial_delay();
     }
-    b >>= 1;
+    /* send parity bit */
+    if(p & 1) { serial_high(); }
+    else      { serial_low(); }
     serial_delay();
-  }
-  serial_low(); // sync_send() / senc_recv() need raise edge
-}
 
-// interrupt handle to be used by the slave device
-ISR(SERIAL_PIN_INTERRUPT) {
-  serial_output();
+    serial_low(); // sync_send() / senc_recv() need raise edge
+}
 
-  // slave send phase
-  uint8_t checksum = 0;
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+static void serial_send_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
+static
+void serial_send_packet(uint8_t *buffer, uint8_t size) {
+  for (uint8_t i = 0; i < size; ++i) {
+    uint8_t data;
+    data = buffer[i];
     sync_send();
-    serial_write_byte(serial_slave_buffer[i]);
-    checksum += serial_slave_buffer[i];
+    serial_write_chunk(data,8);
   }
-  sync_send();
-  serial_write_byte(checksum);
-
-  // slave switch to input
-  sync_send(); //0
-  serial_delay_half1(); //1
-  serial_low();         //2
-  serial_input_with_pullup(); //2
-  serial_delay_half1(); //3
-
-  // slave recive phase
-  uint8_t checksum_computed = 0;
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+}
+
+static uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) NO_INLINE;
+static
+uint8_t serial_recive_packet(uint8_t *buffer, uint8_t size) {
+  uint8_t pecount = 0;
+  for (uint8_t i = 0; i < size; ++i) {
+    uint8_t data;
     sync_recv();
-    serial_master_buffer[i] = serial_read_byte();
-    checksum_computed += serial_master_buffer[i];
+    data = serial_read_chunk(&pecount, 8);
+    buffer[i] = data;
   }
+  return pecount == 0;
+}
+
+inline static
+void change_sender2reciver(void) {
+    sync_send();          //0
+    serial_delay_half1(); //1
+    serial_low();         //2
+    serial_input_with_pullup(); //2
+    serial_delay_half1(); //3
+}
+
+inline static
+void change_reciver2sender(void) {
+    sync_recv();     //0
+    serial_delay();  //1
+    serial_low();    //3
+    serial_output(); //3
+    serial_delay_half1(); //4
+}
+
+static inline uint8_t nibble_bits_count(uint8_t bits)
+{
+    bits = (bits & 0x5) + (bits >> 1 & 0x5);
+    bits = (bits & 0x3) + (bits >> 2 & 0x3);
+    return bits;
+}
+
+// interrupt handle to be used by the target device
+ISR(SERIAL_PIN_INTERRUPT) {
+
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+  serial_low();
+  serial_output();
+  SSTD_t *trans = Transaction_table;
+#else
+  // recive transaction table index
+  uint8_t tid, bits;
+  uint8_t pecount = 0;
   sync_recv();
-  uint8_t checksum_received = serial_read_byte();
+  bits = serial_read_chunk(&pecount,7);
+  tid = bits>>3;
+  bits = (bits&7) != nibble_bits_count(tid);
+  if( bits || pecount> 0 || tid > Transaction_table_size ) {
+      return;
+  }
+  serial_delay_half1();
 
-  if ( checksum_computed != checksum_received ) {
-    status |= SLAVE_DATA_CORRUPT;
+  serial_high(); // response step1 low->high
+  serial_output();
+  _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT*SLAVE_INT_ACK_WIDTH);
+  SSTD_t *trans = &Transaction_table[tid];
+  serial_low(); // response step2 ack high->low
+#endif
+
+  // target send phase
+  if( trans->target2initiator_buffer_size > 0 )
+      serial_send_packet((uint8_t *)trans->target2initiator_buffer,
+                         trans->target2initiator_buffer_size);
+  // target switch to input
+  change_sender2reciver();
+
+  // target recive phase
+  if( trans->initiator2target_buffer_size > 0 ) {
+      if (serial_recive_packet((uint8_t *)trans->initiator2target_buffer,
+                               trans->initiator2target_buffer_size) ) {
+          *trans->status = TRANSACTION_ACCEPTED;
+      } else {
+          *trans->status = TRANSACTION_DATA_ERROR;
+      }
   } else {
-    status &= ~SLAVE_DATA_CORRUPT;
+      *trans->status = TRANSACTION_ACCEPTED;
   }
 
-  sync_recv(); //weit master output to high
+  sync_recv(); //weit initiator output to high
 }
 
-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.
+/////////
+//  start transaction by initiator
+//
+// int  soft_serial_transaction(int sstd_index)
 //
 // Returns:
-// 0 => no error
-// 1 => slave did not respond
-// 2 => checksum error
-int serial_update_buffers(void) {
-  // this code is very time dependent, so we need to disable interrupts
+//    TRANSACTION_END
+//    TRANSACTION_NO_RESPONSE
+//    TRANSACTION_DATA_ERROR
+// this code is very time dependent, so we need to disable interrupts
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+int  soft_serial_transaction(void) {
+  SSTD_t *trans = Transaction_table;
+#else
+int  soft_serial_transaction(int sstd_index) {
+  if( sstd_index > Transaction_table_size )
+      return TRANSACTION_TYPE_ERROR;
+  SSTD_t *trans = &Transaction_table[sstd_index];
+#endif
   cli();
 
-  // signal to the slave that we want to start a transaction
+  // signal to the target that we want to start a transaction
   serial_output();
   serial_low();
-  _delay_us(SLAVE_INT_WIDTH);
+  _delay_us(SLAVE_INT_WIDTH_US);
 
-  // wait for the slaves response
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+  // wait for the target response
   serial_input_with_pullup();
   _delay_us(SLAVE_INT_RESPONSE_TIME);
 
-  // check if the slave is present
+  // check if the target is present
   if (serial_read_pin()) {
-    // slave failed to pull the line low, assume not present
+    // target failed to pull the line low, assume not present
     serial_output();
     serial_high();
+    *trans->status = TRANSACTION_NO_RESPONSE;
     sei();
-    return 1;
+    return TRANSACTION_NO_RESPONSE;
   }
 
-  // master recive phase
-  // if the slave is present syncronize with it
+#else
+  // send transaction table index
+  int tid = (sstd_index<<3) | (7 & nibble_bits_count(sstd_index));
+  sync_send();
+  _delay_sub_us(TID_SEND_ADJUST);
+  serial_write_chunk(tid, 7);
+  serial_delay_half1();
 
-  uint8_t checksum_computed = 0;
-  // receive data from the slave
-  for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
-    sync_recv();
-    serial_slave_buffer[i] = serial_read_byte();
-    checksum_computed += serial_slave_buffer[i];
+  // wait for the target response (step1 low->high)
+  serial_input_with_pullup();
+  while( !serial_read_pin() ) {
+      _delay_sub_us(2);
   }
-  sync_recv();
-  uint8_t checksum_received = serial_read_byte();
 
-  if (checksum_computed != checksum_received) {
-    serial_output();
-    serial_high();
-    sei();
-    return 2;
+  // check if the target is present (step2 high->low)
+  for( int i = 0; serial_read_pin(); i++ ) {
+      if (i > SLAVE_INT_ACK_WIDTH + 1) {
+          // slave failed to pull the line low, assume not present
+          serial_output();
+          serial_high();
+          *trans->status = TRANSACTION_NO_RESPONSE;
+          sei();
+          return TRANSACTION_NO_RESPONSE;
+      }
+      _delay_sub_us(SLAVE_INT_ACK_WIDTH_UNIT);
   }
+#endif
 
-  // master switch to output
-  sync_recv(); //0
-  serial_delay();  //1
-  serial_low();    //3
-  serial_output(); // 3
-  serial_delay_half1(); //4
-
-  // master send phase
-  uint8_t checksum = 0;
-
-  for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
-    sync_send();
-    serial_write_byte(serial_master_buffer[i]);
-    checksum += serial_master_buffer[i];
+  // initiator recive phase
+  // if the target is present syncronize with it
+  if( trans->target2initiator_buffer_size > 0 ) {
+      if (!serial_recive_packet((uint8_t *)trans->target2initiator_buffer,
+                                trans->target2initiator_buffer_size) ) {
+          serial_output();
+          serial_high();
+          *trans->status = TRANSACTION_DATA_ERROR;
+          sei();
+          return TRANSACTION_DATA_ERROR;
+      }
+   }
+
+  // initiator switch to output
+  change_reciver2sender();
+
+  // initiator send phase
+  if( trans->initiator2target_buffer_size > 0 ) {
+      serial_send_packet((uint8_t *)trans->initiator2target_buffer,
+                         trans->initiator2target_buffer_size);
   }
-  sync_send();
-  serial_write_byte(checksum);
 
   // always, release the line when not in use
   sync_send();
 
+  *trans->status = TRANSACTION_END;
   sei();
-  return 0;
+  return TRANSACTION_END;
 }
 
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+int soft_serial_get_and_clean_status(int sstd_index) {
+    SSTD_t *trans = &Transaction_table[sstd_index];
+    cli();
+    int retval = *trans->status;
+    *trans->status = 0;;
+    sei();
+    return retval;
+}
 #endif
+
+#endif
+
+// Helix serial.c history
+//   2018-1-29 fork from let's split and add PD2, modify sync_recv() (#2308, bceffdefc)
+//   2018-6-28 bug fix master to slave comm and speed up (#3255, 1038bbef4)
+//             (adjusted with avr-gcc 4.9.2)
+//   2018-7-13 remove USE_SERIAL_PD2 macro (#3374, f30d6dd78)
+//             (adjusted with avr-gcc 4.9.2)
+//   2018-8-11 add support multi-type transaction (#3608, feb5e4aae)
+//             (adjusted with avr-gcc 4.9.2)
+//   2018-10-21 fix serial and RGB animation conflict (#4191, 4665e4fff)
+//             (adjusted with avr-gcc 7.3.0)
+//   2018-10-28 re-adjust compiler depend value of delay (#4269, 8517f8a66)
+//             (adjusted with avr-gcc 5.4.0, 7.3.0)
diff --git a/keyboards/helix/serial.h b/keyboards/helix/serial.h
index c3c9569b2c..2e53928df2 100644
--- a/keyboards/helix/serial.h
+++ b/keyboards/helix/serial.h
@@ -3,25 +3,87 @@
 
 #include <stdbool.h>
 
-// ////////////////////////////////////////////
-// Need Soft Serial defines in serial_config.h
-// ////////////////////////////////////////////
+// /////////////////////////////////////////////////////////////////
+// Need Soft Serial defines in config.h
+// /////////////////////////////////////////////////////////////////
+// ex.
+//  #define SOFT_SERIAL_PIN ??   // ?? = D0,D1,D2,D3,E6
+//  OPTIONAL: #define SELECT_SOFT_SERIAL_SPEED ? // ? = 1,2,3,4,5
+//                                               //  1: about 137kbps (default)
+//                                               //  2: about 75kbps
+//                                               //  3: about 39kbps
+//                                               //  4: about 26kbps
+//                                               //  5: about 20kbps
+//
+// //// USE OLD API (compatible with let's split serial.c)
 // ex.
-//  #define SERIAL_PIN_DDR DDRD
-//  #define SERIAL_PIN_PORT PORTD
-//  #define SERIAL_PIN_INPUT PIND
-//  #define SERIAL_PIN_MASK _BV(PD?)   ?=0,2
-//  #define SERIAL_PIN_INTERRUPT INT?_vect  ?=0,2
 //  #define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
-//  #define SERIAL_MASTER_BUFFER_LENGTH MATRIX_ROWS/2
+//  #define SERIAL_MASTER_BUFFER_LENGTH 1
+//
+// //// USE NEW API
+//    //// USE simple API (using signle-type transaction function)
+//      #define SERIAL_USE_SINGLE_TRANSACTION
+//    //// USE flexible API (using multi-type transaction function)
+//      #define SERIAL_USE_MULTI_TRANSACTION
+//
+// /////////////////////////////////////////////////////////////////
+
+
+//////////////// for backward compatibility ////////////////////////////////
+#if !defined(SERIAL_USE_SINGLE_TRANSACTION) && !defined(SERIAL_USE_MULTI_TRANSACTION)
+/* --- USE OLD API (compatible with let's split serial.c) */
+ #if SERIAL_SLAVE_BUFFER_LENGTH > 0
+ extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+ #endif
+ #if SERIAL_MASTER_BUFFER_LENGTH > 0
+ extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+ #endif
+
+ void serial_master_init(void);
+ void serial_slave_init(void);
+ int serial_update_buffers(void);
+
+#endif // end of USE OLD API
+////////////////////////////////////////////////////////////////////////////
+
+// Soft Serial Transaction Descriptor
+typedef struct _SSTD_t  {
+    uint8_t *status;
+    uint8_t initiator2target_buffer_size;
+    uint8_t *initiator2target_buffer;
+    uint8_t target2initiator_buffer_size;
+    uint8_t *target2initiator_buffer;
+} SSTD_t;
+#define TID_LIMIT( table ) (sizeof(table) / sizeof(SSTD_t))
+
+// initiator is transaction start side
+void soft_serial_initiator_init(SSTD_t *sstd_table, int sstd_table_size);
+// target is interrupt accept side
+void soft_serial_target_init(SSTD_t *sstd_table, int sstd_table_size);
 
-// 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];
+// initiator resullt
+#define TRANSACTION_END 0
+#define TRANSACTION_NO_RESPONSE 0x1
+#define TRANSACTION_DATA_ERROR  0x2
+#define TRANSACTION_TYPE_ERROR  0x4
+#ifndef SERIAL_USE_MULTI_TRANSACTION
+int  soft_serial_transaction(void);
+#else
+int  soft_serial_transaction(int sstd_index);
+#endif
 
-void serial_master_init(void);
-void serial_slave_init(void);
-int serial_update_buffers(void);
-bool serial_slave_data_corrupt(void);
+// target status
+// *SSTD_t.status has
+//   initiator:
+//       TRANSACTION_END
+//    or TRANSACTION_NO_RESPONSE
+//    or TRANSACTION_DATA_ERROR
+//   target:
+//       TRANSACTION_DATA_ERROR
+//    or TRANSACTION_ACCEPTED
+#define TRANSACTION_ACCEPTED 0x8
+#ifdef SERIAL_USE_MULTI_TRANSACTION
+int  soft_serial_get_and_clean_status(int sstd_index);
+#endif
 
 #endif /* SOFT_SERIAL_H */
diff --git a/keyboards/helix/ssd1306.c b/keyboards/helix/ssd1306.c
index b3e55a67c2..dd3290ba0c 100644
--- a/keyboards/helix/ssd1306.c
+++ b/keyboards/helix/ssd1306.c
@@ -1,3 +1,4 @@
+
 #ifdef SSD1306OLED
 
 #include "ssd1306.h"
@@ -27,12 +28,17 @@
 //static uint16_t last_battery_update;
 //static uint32_t vbat;
 //#define BatteryUpdateInterval 10000 /* milliseconds */
-#define ScreenOffInterval 300000 /* milliseconds */
+
+// 'last_flush' is declared as uint16_t,
+// so this must be less than 65535 
+#define ScreenOffInterval 60000 /* milliseconds */
 #if DEBUG_TO_SCREEN
 static uint8_t displaying;
 #endif
 static uint16_t last_flush;
 
+static bool force_dirty = true;
+
 // Write command sequence.
 // Returns true on success.
 static inline bool _send_cmd1(uint8_t cmd) {
@@ -318,12 +324,19 @@ void iota_gfx_task_user(void) {
 void iota_gfx_task(void) {
   iota_gfx_task_user();
 
-  if (display.dirty) {
+  if (display.dirty|| force_dirty) {
     iota_gfx_flush();
+    force_dirty = false;
   }
 
   if (timer_elapsed(last_flush) > ScreenOffInterval) {
     iota_gfx_off();
   }
 }
+
+bool process_record_gfx(uint16_t keycode, keyrecord_t *record) {
+  force_dirty = true;
+  return true;
+}
+
 #endif
diff --git a/keyboards/helix/ssd1306.h b/keyboards/helix/ssd1306.h
index 77ce7c211a..9cf6983b7e 100644
--- a/keyboards/helix/ssd1306.h
+++ b/keyboards/helix/ssd1306.h
@@ -4,6 +4,7 @@
 #include <stdbool.h>
 #include <stdio.h>
 #include "pincontrol.h"
+#include "action.h"
 
 enum ssd1306_cmds {
   DisplayOff = 0xAE,
@@ -87,6 +88,6 @@ void matrix_write(struct CharacterMatrix *matrix, const char *data);
 void matrix_write_P(struct CharacterMatrix *matrix, const char *data);
 void matrix_render(struct CharacterMatrix *matrix);
 
-
+bool process_record_gfx(uint16_t keycode, keyrecord_t *record);
 
 #endif