Lets split eh (#3120)

* Line ending stuff again

* Added Let's Split Eh? Files and updated #USE_IC2 checks to also include th EH revision (can only be used in I2C)

* Added personal keymap, updated some of the EH files

* Created new keyboard file for testing "lets_split_eh" will merge into lets_split once fully functional

* Added split code from lets_split, removed pro micro imports and LED code

THIS IS WORKING CODE, WITHOUT RGB AND BACKLIGHT

* Took back original Lets Slit files for the lets_split keyboard, working in the lets_split_eh folder for now

* Updated eh.c

* More rework of the I2C code, added global flags for split boards.

* Introduced RGB over I2C, having weird edge case issues at the moment though

* Fixed weird I2C edgecase with RGB, although still would like to track down route cause..

* Changed RGB keycodes (static ones) to activate on key-up instead of key-down to elimate weird ghosting issue over I2C

* Lots of changes, mainly externalized the Split keyboard code and added logic for only including when needed.

- Added makefile option "SPLIT_KEYBOARD" that when = yes will include the split keyboard files and custom matrix
- Split keyboard files placed into quantum/split_common/
- Added define option for config files "SPLIT_HAND_PIN" FOr using high/low pin to determine handedness, low = right hand, high = left hand
- Cleaned up split logic for RGB and Backlight so it is only exectuted / included when needed

* Updated documentation for the new makefile options and #defines specific to split keyboards

* Added a bit more info to docs, so people aren't confused

* Modifed Let's Split to use externalized code, also added left and right hand eeprom files to the split_common folder

* Removed some debugging from eh.c

* Small changes to keyboard configs. Also added a default keymap (just a copy of my that_canadian keymap).

* Added a README file to the Let's Split Eh?

* Changed it so RGB static updates are done on key-up ONLY for split boards rather than all boards. Also fixed leftover un-used variable in rgblight.c

* Updated default keymap and my keymap for Let's Split Eh? Updated the comments so it reflects RGB control, and removed audio functions.

* Fixed lets_split_eh not having a default version

* Removed "eh" references from lets_split folder for now

* Took lets_split folder from master to fix travis build errors, weird my local was overriding.

* Changed LAYOUT_ortho_4x12_kc -> LAYOUT_kc_ortho_4x12 to match bakingpy and others

* Removed rules.mk from my lets_split keymap, not needed

* Updated the config_options doc to better explain the usage of "#define SPLIT_HAND_PIN"

15 files changed, 645 insertions, 0 deletions

diff --git a/keyboards/lets_split_eh/README.md b/keyboards/lets_split_eh/README.md
new file mode 100644
index 000000000..185e74dab
--- /dev/null
+++ b/keyboards/lets_split_eh/README.md
@@ -0,0 +1,13 @@
+# Let's Split Eh?
+
+![Let's Split Eh?](https://i.imgur.com/VMQG4qw.jpg?1)
+
+This is a split 40% ortho board. It is the exact same footprint and the Let's Split keyboard by wootpatoot. This board has USB-C / RGB Underglow / and is all on-board. Meant as a drop-in replacement for the V2 Let's Split.
+
+Keyboard Maintainer: [Christopher Poole (That-Canadian)](https://github.com/That-Canadian)  
+
+Make example for this keyboard (after setting up your build environment):
+
+    make lets_split_eh/eh:default
+
+See [build environment setup](https://docs.qmk.fm/build_environment_setup.html) then the [make instructions](https://docs.qmk.fm/make_instructions.html) for more information.
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/config.h b/keyboards/lets_split_eh/config.h
new file mode 100644
index 000000000..b8fe95ea2
--- /dev/null
+++ b/keyboards/lets_split_eh/config.h
@@ -0,0 +1,44 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef CONFIG_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0xFEED
+#define PRODUCT_ID      0xE401
+#define DEVICE_VER      0x0E41
+#define MANUFACTURER    That-Canadian
+#define PRODUCT         Lets Split Eh?
+#define DESCRIPTION     An on-board component Lets Split w/ USB-C
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+    keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+#endif
diff --git a/keyboards/lets_split_eh/eh/config.h b/keyboards/lets_split_eh/eh/config.h
new file mode 100644
index 000000000..5651ddd8b
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/config.h
@@ -0,0 +1,47 @@
+/*
+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 EH_CONFIG_H
+#define EH_CONFIG_H
+
+// To let configuration know this is of type EH, which will force I2C irregardless of user config
+#define EH
+
+#include "config_common.h"
+
+/* Let's Split EH? pin-out */
+#define MATRIX_ROW_PINS { B1, B3, D7, B4 }
+#define MATRIX_COL_PINS { F4, F5, C6, B6, B5, D5 }
+#define UNUSED_PINS
+
+#define DIODE_DIRECTION COL2ROW
+
+#define BACKLIGHT_PIN B7
+
+/* number of backlight levels */
+#define BACKLIGHT_LEVELS 3
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN B2
+#define RGBLED_NUM 6    // Number of LEDs (each hand)
+
+/* Split Defines */
+#define SPLIT_HAND_PIN D3
+
+#endif
+
diff --git a/keyboards/lets_split_eh/eh/eh.c b/keyboards/lets_split_eh/eh/eh.c
new file mode 100644
index 000000000..e748d3ae0
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/eh.c
@@ -0,0 +1,14 @@
+#include "lets_split_eh.h"
+
+void matrix_init_kb(void) {
+
+    // JTAG disable for PORT F. write JTD bit twice within four cycles.
+    MCUCR |= (1<<JTD);
+    MCUCR |= (1<<JTD);
+        
+        // Undo init of RX LED, we use that port currently
+        // DDRB &= ~(1<<0);
+        
+        matrix_init_user();
+};
+
diff --git a/keyboards/lets_split_eh/eh/eh.h b/keyboards/lets_split_eh/eh/eh.h
new file mode 100644
index 000000000..7dc84fe18
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/eh.h
@@ -0,0 +1,27 @@
+#ifndef EH_H
+#define EH_H
+
+#include "lets_split_eh.h"
+
+#include "quantum.h"
+
+#define LAYOUT( \
+        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, R30, R31, R32, R33, R34, R35 \
+        ) \
+        { \
+                { L00, L01, L02, L03, L04, L05 }, \
+                { L10, L11, L12, L13, L14, L15 }, \
+                { L20, L21, L22, L23, L24, L25 }, \
+                { L30, L31, L32, L33, L34, L35 }, \
+        { R00, R01, R02, R03, R04, R05 }, \
+        { R10, R11, R12, R13, R14, R15 }, \
+        { R20, R21, R22, R23, R24, R25 }, \
+        { R30, R31, R32, R33, R34, R35 } \
+        }
+    
+#define LAYOUT_ortho_4x12 LAYOUT
+
+#endif
diff --git a/keyboards/lets_split_eh/eh/rules.mk b/keyboards/lets_split_eh/eh/rules.mk
new file mode 100644
index 000000000..4bac58533
--- /dev/null
+++ b/keyboards/lets_split_eh/eh/rules.mk
@@ -0,0 +1,4 @@
+BOOTLOADER = atmel-dfu
+
+BACKLIGHT_ENABLE = yes
+RGBLIGHT_ENABLE = yes
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/keymaps/default/config.h b/keyboards/lets_split_eh/keymaps/default/config.h
new file mode 100644
index 000000000..a1df337bd
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/default/config.h
@@ -0,0 +1,26 @@
+/*
+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
+
+#include "../../config.h"
+
+#endif
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/keymaps/default/keymap.c b/keyboards/lets_split_eh/keymaps/default/keymap.c
new file mode 100644
index 000000000..8ef973574
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/default/keymap.c
@@ -0,0 +1,170 @@
+#include QMK_KEYBOARD_H
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+
+#define _LOWER 3
+#define _RAISE 4
+#define _FUNCTION 15
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Defines for task manager and such
+#define CALTDEL LCTL(LALT(KC_DEL))
+#define TSKMGR LCTL(LSFT(KC_ESC))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Func |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  | Enter|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |  '   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl |  `   | GUI  | Alt  |Lower |    Space    |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT( \
+  KC_TAB,        KC_Q,   KC_W,    KC_E,    KC_R,  KC_T,   KC_Y,   KC_U,  KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  MO(_FUNCTION), KC_A,   KC_S,    KC_D,    KC_F,  KC_G,   KC_H,   KC_J,  KC_K,    KC_L,    KC_SCLN, KC_ENT,  \
+  OSM(MOD_LSFT), KC_Z,   KC_X,    KC_C,    KC_V,  KC_B,   KC_N,   KC_M,  KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT, \
+  KC_LCTL,       KC_GRV, KC_LGUI, KC_LALT, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT  \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |Enter |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      | Mute |      |  |   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |Lower | Bksp | Bksp |Raise | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT( \
+  KC_ESC,  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_F7,    KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, KC_MUTE, _______, KC_PIPE, \
+  _______, _______,  _______, _______, _______, KC_BSPC, KC_BSPC, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY  \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |   4  |   5  |   6  |   +  |  F5  |  F6  |   -  |   =  |   [  |   ]  |Enter |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |Enter |   7  |   8  |   9  |   -  |  F11 |  F12 |ISO # |ISO / | Mute |      |   \  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |   ,  |   0  |  .   |Lower | Bksp | Bksp |Raise | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT( \
+  KC_ESC,  KC_1,    KC_2,  KC_3,   KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,  \
+  _______, KC_4,    KC_5,  KC_6,   KC_PLUS, KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, _______, \
+  KC_ENT,  KC_7,    KC_8,  KC_9,   KC_MINS, KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, KC_MUTE, _______, KC_BSLS, \
+  _______, KC_COMM, KC_0,  KC_DOT, _______, KC_BSPC, KC_BSPC, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY  \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |Taskmg|      |      |      |      |      |      |      |RGBVAI|RGBSAI|RGBHUI|caltde|
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |Qwerty|RGBVAD|RGBSAD|RGBHUD|RGBTOG|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |BLSTEP|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | RESET|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT( \
+  TSKMGR,  _______, _______, _______, _______, _______, _______, _______, RGB_VAI, RGB_SAI, RGB_HUI, CALTDEL, \
+  _______, _______, _______, _______, _______, _______, _______, QWERTY,  RGB_VAD, RGB_SAD, RGB_HUD, RGB_TOG, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, BL_STEP, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET    \
+),
+
+/* Function
+ * ,-----------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |  Up  |      |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      | Left | Down |Right |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Caps |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_FUNCTION] = LAYOUT( \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_UP,   _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, \
+  KC_CAPS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
+)
+
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/keymaps/default/rules.mk b/keyboards/lets_split_eh/keymaps/default/rules.mk
new file mode 100644
index 000000000..457a3d01d
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/default/rules.mk
@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+        include ../../../../Makefile
+endif
diff --git a/keyboards/lets_split_eh/keymaps/that_canadian/config.h b/keyboards/lets_split_eh/keymaps/that_canadian/config.h
new file mode 100644
index 000000000..a1df337bd
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/that_canadian/config.h
@@ -0,0 +1,26 @@
+/*
+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
+
+#include "../../config.h"
+
+#endif
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/keymaps/that_canadian/keymap.c b/keyboards/lets_split_eh/keymaps/that_canadian/keymap.c
new file mode 100644
index 000000000..8ef973574
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/that_canadian/keymap.c
@@ -0,0 +1,170 @@
+#include QMK_KEYBOARD_H
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+
+#define _LOWER 3
+#define _RAISE 4
+#define _FUNCTION 15
+#define _ADJUST 16
+
+enum custom_keycodes {
+  QWERTY = SAFE_RANGE,
+  LOWER,
+  RAISE,
+  ADJUST
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Defines for task manager and such
+#define CALTDEL LCTL(LALT(KC_DEL))
+#define TSKMGR LCTL(LSFT(KC_ESC))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab  |   Q  |   W  |   E  |   R  |   T  |   Y  |   U  |   I  |   O  |   P  | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Func |   A  |   S  |   D  |   F  |   G  |   H  |   J  |   K  |   L  |   ;  | Enter|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift|   Z  |   X  |   C  |   V  |   B  |   N  |   M  |   ,  |   .  |   /  |  '   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl |  `   | GUI  | Alt  |Lower |    Space    |Raise | Left | Down |  Up  |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = LAYOUT( \
+  KC_TAB,        KC_Q,   KC_W,    KC_E,    KC_R,  KC_T,   KC_Y,   KC_U,  KC_I,    KC_O,    KC_P,    KC_BSPC, \
+  MO(_FUNCTION), KC_A,   KC_S,    KC_D,    KC_F,  KC_G,   KC_H,   KC_J,  KC_K,    KC_L,    KC_SCLN, KC_ENT,  \
+  OSM(MOD_LSFT), KC_Z,   KC_X,    KC_C,    KC_V,  KC_B,   KC_N,   KC_M,  KC_COMM, KC_DOT,  KC_SLSH, KC_QUOT, \
+  KC_LCTL,       KC_GRV, KC_LGUI, KC_LALT, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP,   KC_RGHT  \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   !  |   @  |   #  |   $  |   %  |   ^  |   &  |   *  |   (  |   )  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |  F1  |  F2  |  F3  |  F4  |  F5  |  F6  |   _  |   +  |   {  |   }  |Enter |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |  F7  |  F8  |  F9  |  F10 |  F11 |  F12 |      |      | Mute |      |  |   |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |Lower | Bksp | Bksp |Raise | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = LAYOUT( \
+  KC_ESC,  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_F7,    KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  _______, _______, KC_MUTE, _______, KC_PIPE, \
+  _______, _______,  _______, _______, _______, KC_BSPC, KC_BSPC, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY  \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | Esc  |   1  |   2  |   3  |   4  |   5  |   6  |   7  |   8  |   9  |   0  | Del  |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |   4  |   5  |   6  |   +  |  F5  |  F6  |   -  |   =  |   [  |   ]  |Enter |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |Enter |   7  |   8  |   9  |   -  |  F11 |  F12 |ISO # |ISO / | Mute |      |   \  |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |   ,  |   0  |  .   |Lower | Bksp | Bksp |Raise | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = LAYOUT( \
+  KC_ESC,  KC_1,    KC_2,  KC_3,   KC_4,    KC_5,    KC_6,    KC_7,    KC_8,    KC_9,    KC_0,    KC_DEL,  \
+  _______, KC_4,    KC_5,  KC_6,   KC_PLUS, KC_F5,   KC_F6,   KC_MINS, KC_EQL,  KC_LBRC, KC_RBRC, _______, \
+  KC_ENT,  KC_7,    KC_8,  KC_9,   KC_MINS, KC_F11,  KC_F12,  KC_NUHS, KC_NUBS, KC_MUTE, _______, KC_BSLS, \
+  _______, KC_COMM, KC_0,  KC_DOT, _______, KC_BSPC, KC_BSPC, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY  \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * |Taskmg|      |      |      |      |      |      |      |RGBVAI|RGBSAI|RGBHUI|caltde|
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |Qwerty|RGBVAD|RGBSAD|RGBHUD|RGBTOG|
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |BLSTEP|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      | RESET|
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = LAYOUT( \
+  TSKMGR,  _______, _______, _______, _______, _______, _______, _______, RGB_VAI, RGB_SAI, RGB_HUI, CALTDEL, \
+  _______, _______, _______, _______, _______, _______, _______, QWERTY,  RGB_VAD, RGB_SAD, RGB_HUD, RGB_TOG, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, BL_STEP, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET    \
+),
+
+/* Function
+ * ,-----------------------------------------------------------------------------------.
+ * |      |      |      |      |      |      |      |      |  Up  |      |      |      |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      | Left | Down |Right |      |      |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Caps |      |      |      |      |      |      |      |      |      |      |      |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |      |      |      |      |      |      |      |      |      |      |      |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_FUNCTION] = LAYOUT( \
+  _______, _______, _______, _______, _______, _______, _______, _______, KC_UP,   _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, KC_LEFT, KC_DOWN, KC_RGHT, _______, _______, \
+  KC_CAPS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+  _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______  \
+)
+
+};
+
+void persistent_default_layer_set(uint16_t default_layer) {
+  eeconfig_update_default_layer(default_layer);
+  default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+  switch (keycode) {
+    case QWERTY:
+      if (record->event.pressed) {
+        persistent_default_layer_set(1UL<<_QWERTY);
+      }
+      return false;
+      break;
+    case LOWER:
+      if (record->event.pressed) {
+        layer_on(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_LOWER);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case RAISE:
+      if (record->event.pressed) {
+        layer_on(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      } else {
+        layer_off(_RAISE);
+        update_tri_layer(_LOWER, _RAISE, _ADJUST);
+      }
+      return false;
+      break;
+    case ADJUST:
+      if (record->event.pressed) {
+        layer_on(_ADJUST);
+      } else {
+        layer_off(_ADJUST);
+      }
+      return false;
+      break;
+  }
+  return true;
+}
\ No newline at end of file
diff --git a/keyboards/lets_split_eh/keymaps/that_canadian/rules.mk b/keyboards/lets_split_eh/keymaps/that_canadian/rules.mk
new file mode 100644
index 000000000..457a3d01d
--- /dev/null
+++ b/keyboards/lets_split_eh/keymaps/that_canadian/rules.mk
@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+        include ../../../../Makefile
+endif
diff --git a/keyboards/lets_split_eh/lets_split_eh.c b/keyboards/lets_split_eh/lets_split_eh.c
new file mode 100644
index 000000000..d5a312085
--- /dev/null
+++ b/keyboards/lets_split_eh/lets_split_eh.c
@@ -0,0 +1 @@
+#include "lets_split_eh.h"
diff --git a/keyboards/lets_split_eh/lets_split_eh.h b/keyboards/lets_split_eh/lets_split_eh.h
new file mode 100644
index 000000000..f3d2cd0d0
--- /dev/null
+++ b/keyboards/lets_split_eh/lets_split_eh.h
@@ -0,0 +1,27 @@
+#ifndef LETS_SPLIT_EH_H
+#define LETS_SPLIT_EH_H
+
+#include "quantum.h"
+
+#ifdef KEYBOARD_lets_split_eh_eh
+    #include "eh.h"
+#endif
+
+
+// Used to create a keymap using only KC_ prefixed keys
+#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, 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_##R30, KC_##R31, KC_##R32, KC_##R33, KC_##R34, KC_##R35 \
+    )
+
+#define LAYOUT_kc_ortho_4x12 LAYOUT_kc
+
+#endif
diff --git a/keyboards/lets_split_eh/rules.mk b/keyboards/lets_split_eh/rules.mk
new file mode 100644
index 000000000..dffeb9fa3
--- /dev/null
+++ b/keyboards/lets_split_eh/rules.mk
@@ -0,0 +1,70 @@
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+#     This will define a symbol, F_CPU, in all source code files equal to the
+#     processor frequency in Hz. You can then use this symbol in your source code to
+#     calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+#     automatically to create a 32-bit value in your source code.
+#
+#     This will be an integer division of F_USB below, as it is sourced by
+#     F_USB after it has run through any CPU prescalers. Note that this value
+#     does not *change* the processor frequency - it should merely be updated to
+#     reflect the processor speed set externally so that the code can use accurate
+#     software delays.
+F_CPU = 16000000
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+#     This will define a symbol, F_USB, in all source code files equal to the
+#     input clock frequency (before any prescaling is performed) in Hz. This value may
+#     differ from F_CPU if prescaling is used on the latter, and is required as the
+#     raw input clock is fed directly to the PLL sections of the AVR for high speed
+#     clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+#     at the end, this will be done automatically to create a 32-bit value in your
+#     source code.
+#
+#     If no clock division is performed on the input clock inside the AVR (via the
+#     CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Bootloader
+#     This definition is optional, and if your keyboard supports multiple bootloaders of
+#     different sizes, comment this out, and the correct address will be loaded
+#     automatically (+60). See bootloader.mk for all options.
+BOOTLOADER = atmel-dfu
+
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+# 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 = no        # Enable WS2812 RGB underlight.
+API_SYSEX_ENABLE = no
+
+SPLIT_KEYBOARD = yes
+
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no    # Breathing sleep LED during USB suspend
+
+DEFAULT_FOLDER = lets_split_eh/eh