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-rw-r--r--keyboards/lets_split/Makefile5
-rw-r--r--keyboards/lets_split/common/glcdfont.c276
-rw-r--r--keyboards/lets_split/config.h31
-rw-r--r--keyboards/lets_split/eeprom-lefthand.eep2
-rw-r--r--keyboards/lets_split/eeprom-righthand.eep2
-rw-r--r--keyboards/lets_split/i2c.c162
-rw-r--r--keyboards/lets_split/i2c.h49
-rw-r--r--keyboards/lets_split/keymaps/OLED_sample/Makefile25
-rw-r--r--keyboards/lets_split/keymaps/OLED_sample/config.h59
-rw-r--r--keyboards/lets_split/keymaps/OLED_sample/keymap.c359
-rw-r--r--keyboards/lets_split/keymaps/OLED_sample/readme.md25
-rw-r--r--keyboards/lets_split/keymaps/adam/config.h50
-rw-r--r--keyboards/lets_split/keymaps/adam/keymap.c79
-rw-r--r--keyboards/lets_split/keymaps/adam/makefile1
-rw-r--r--keyboards/lets_split/keymaps/default/Makefile3
-rw-r--r--keyboards/lets_split/keymaps/default/config.h37
-rw-r--r--keyboards/lets_split/keymaps/default/keymap.c214
-rw-r--r--keyboards/lets_split/keymaps/hexwire/Makefile5
-rw-r--r--keyboards/lets_split/keymaps/hexwire/README.md108
-rw-r--r--keyboards/lets_split/keymaps/hexwire/config.h26
-rw-r--r--keyboards/lets_split/keymaps/hexwire/keymap.c205
-rw-r--r--keyboards/lets_split/keymaps/khord/Makefile7
-rw-r--r--keyboards/lets_split/keymaps/khord/config.h41
-rw-r--r--keyboards/lets_split/keymaps/khord/keymap.c235
-rw-r--r--keyboards/lets_split/keymaps/smt/config.h37
-rw-r--r--keyboards/lets_split/keymaps/smt/keymap.c219
-rw-r--r--keyboards/lets_split/keymaps/smt/readme.md88
-rw-r--r--keyboards/lets_split/keymaps/xyverz/config.h45
-rw-r--r--keyboards/lets_split/keymaps/xyverz/keymap.c191
-rw-r--r--keyboards/lets_split/lets_split.c1
-rw-r--r--keyboards/lets_split/lets_split.h27
-rw-r--r--keyboards/lets_split/matrix.c316
-rw-r--r--keyboards/lets_split/pro_micro.h362
-rw-r--r--keyboards/lets_split/readme.md184
-rw-r--r--keyboards/lets_split/rev1/Makefile3
-rw-r--r--keyboards/lets_split/rev1/config.h89
-rw-r--r--keyboards/lets_split/rev1/rev1.c32
-rw-r--r--keyboards/lets_split/rev1/rev1.h28
-rw-r--r--keyboards/lets_split/rev1/rules.mk5
-rw-r--r--keyboards/lets_split/rev2/Makefile3
-rw-r--r--keyboards/lets_split/rev2/config.h89
-rw-r--r--keyboards/lets_split/rev2/rev2.c39
-rw-r--r--keyboards/lets_split/rev2/rev2.h60
-rw-r--r--keyboards/lets_split/rev2/rules.mk5
-rw-r--r--keyboards/lets_split/rules.mk88
-rw-r--r--keyboards/lets_split/serial.c228
-rw-r--r--keyboards/lets_split/serial.h26
-rw-r--r--keyboards/lets_split/split_util.c84
-rw-r--r--keyboards/lets_split/split_util.h24
-rw-r--r--keyboards/lets_split/ssd1306.c470
-rw-r--r--keyboards/lets_split/ssd1306.h17
51 files changed, 4766 insertions, 0 deletions
diff --git a/keyboards/lets_split/Makefile b/keyboards/lets_split/Makefile
new file mode 100644
index 000000000..f5c87d4d6
--- /dev/null
+++ b/keyboards/lets_split/Makefile
@@ -0,0 +1,5 @@
+SUBPROJECT_DEFAULT = rev2
+
+ifndef MAKEFILE_INCLUDED
+ include ../../Makefile
+endif
diff --git a/keyboards/lets_split/common/glcdfont.c b/keyboards/lets_split/common/glcdfont.c
new file mode 100644
index 000000000..6f88bd23a
--- /dev/null
+++ b/keyboards/lets_split/common/glcdfont.c
@@ -0,0 +1,276 @@
+// This is the 'classic' fixed-space bitmap font for Adafruit_GFX since 1.0.
+// See gfxfont.h for newer custom bitmap font info.
+
+#ifndef FONT5X7_H
+#define FONT5X7_H
+
+#ifdef __AVR__
+ #include <avr/io.h>
+ #include <avr/pgmspace.h>
+#elif defined(ESP8266)
+ #include <pgmspace.h>
+#else
+ #define PROGMEM
+#endif
+
+// Standard ASCII 5x7 font
+
+static const unsigned char font[] PROGMEM = {
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x3E, 0x5B, 0x4F, 0x5B, 0x3E,
+ 0x3E, 0x6B, 0x4F, 0x6B, 0x3E,
+ 0x1C, 0x3E, 0x7C, 0x3E, 0x1C,
+ 0x18, 0x3C, 0x7E, 0x3C, 0x18,
+ 0x1C, 0x57, 0x7D, 0x57, 0x1C,
+ 0x1C, 0x5E, 0x7F, 0x5E, 0x1C,
+ 0x00, 0x18, 0x3C, 0x18, 0x00,
+ 0xFF, 0xE7, 0xC3, 0xE7, 0xFF,
+ 0x00, 0x18, 0x24, 0x18, 0x00,
+ 0xFF, 0xE7, 0xDB, 0xE7, 0xFF,
+ 0x30, 0x48, 0x3A, 0x06, 0x0E,
+ 0x26, 0x29, 0x79, 0x29, 0x26,
+ 0x40, 0x7F, 0x05, 0x05, 0x07,
+ 0x40, 0x7F, 0x05, 0x25, 0x3F,
+ 0x5A, 0x3C, 0xE7, 0x3C, 0x5A,
+ 0x7F, 0x3E, 0x1C, 0x1C, 0x08,
+ 0x08, 0x1C, 0x1C, 0x3E, 0x7F,
+ 0x14, 0x22, 0x7F, 0x22, 0x14,
+ 0x5F, 0x5F, 0x00, 0x5F, 0x5F,
+ 0x06, 0x09, 0x7F, 0x01, 0x7F,
+ 0x00, 0x66, 0x89, 0x95, 0x6A,
+ 0x60, 0x60, 0x60, 0x60, 0x60,
+ 0x94, 0xA2, 0xFF, 0xA2, 0x94,
+ 0x08, 0x04, 0x7E, 0x04, 0x08,
+ 0x10, 0x20, 0x7E, 0x20, 0x10,
+ 0x08, 0x08, 0x2A, 0x1C, 0x08,
+ 0x08, 0x1C, 0x2A, 0x08, 0x08,
+ 0x1E, 0x10, 0x10, 0x10, 0x10,
+ 0x0C, 0x1E, 0x0C, 0x1E, 0x0C,
+ 0x30, 0x38, 0x3E, 0x38, 0x30,
+ 0x06, 0x0E, 0x3E, 0x0E, 0x06,
+ 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x5F, 0x00, 0x00,
+ 0x00, 0x07, 0x00, 0x07, 0x00,
+ 0x14, 0x7F, 0x14, 0x7F, 0x14,
+ 0x24, 0x2A, 0x7F, 0x2A, 0x12,
+ 0x23, 0x13, 0x08, 0x64, 0x62,
+ 0x36, 0x49, 0x56, 0x20, 0x50,
+ 0x00, 0x08, 0x07, 0x03, 0x00,
+ 0x00, 0x1C, 0x22, 0x41, 0x00,
+ 0x00, 0x41, 0x22, 0x1C, 0x00,
+ 0x2A, 0x1C, 0x7F, 0x1C, 0x2A,
+ 0x08, 0x08, 0x3E, 0x08, 0x08,
+ 0x00, 0x80, 0x70, 0x30, 0x00,
+ 0x08, 0x08, 0x08, 0x08, 0x08,
+ 0x00, 0x00, 0x60, 0x60, 0x00,
+ 0x20, 0x10, 0x08, 0x04, 0x02,
+ 0x3E, 0x51, 0x49, 0x45, 0x3E,
+ 0x00, 0x42, 0x7F, 0x40, 0x00,
+ 0x72, 0x49, 0x49, 0x49, 0x46,
+ 0x21, 0x41, 0x49, 0x4D, 0x33,
+ 0x18, 0x14, 0x12, 0x7F, 0x10,
+ 0x27, 0x45, 0x45, 0x45, 0x39,
+ 0x3C, 0x4A, 0x49, 0x49, 0x31,
+ 0x41, 0x21, 0x11, 0x09, 0x07,
+ 0x36, 0x49, 0x49, 0x49, 0x36,
+ 0x46, 0x49, 0x49, 0x29, 0x1E,
+ 0x00, 0x00, 0x14, 0x00, 0x00,
+ 0x00, 0x40, 0x34, 0x00, 0x00,
+ 0x00, 0x08, 0x14, 0x22, 0x41,
+ 0x14, 0x14, 0x14, 0x14, 0x14,
+ 0x00, 0x41, 0x22, 0x14, 0x08,
+ 0x02, 0x01, 0x59, 0x09, 0x06,
+ 0x3E, 0x41, 0x5D, 0x59, 0x4E,
+ 0x7C, 0x12, 0x11, 0x12, 0x7C,
+ 0x7F, 0x49, 0x49, 0x49, 0x36,
+ 0x3E, 0x41, 0x41, 0x41, 0x22,
+ 0x7F, 0x41, 0x41, 0x41, 0x3E,
+ 0x7F, 0x49, 0x49, 0x49, 0x41,
+ 0x7F, 0x09, 0x09, 0x09, 0x01,
+ 0x3E, 0x41, 0x41, 0x51, 0x73,
+ 0x7F, 0x08, 0x08, 0x08, 0x7F,
+ 0x00, 0x41, 0x7F, 0x41, 0x00,
+ 0x20, 0x40, 0x41, 0x3F, 0x01,
+ 0x7F, 0x08, 0x14, 0x22, 0x41,
+ 0x7F, 0x40, 0x40, 0x40, 0x40,
+ 0x7F, 0x02, 0x1C, 0x02, 0x7F,
+ 0x7F, 0x04, 0x08, 0x10, 0x7F,
+ 0x3E, 0x41, 0x41, 0x41, 0x3E,
+ 0x7F, 0x09, 0x09, 0x09, 0x06,
+ 0x3E, 0x41, 0x51, 0x21, 0x5E,
+ 0x7F, 0x09, 0x19, 0x29, 0x46,
+ 0x26, 0x49, 0x49, 0x49, 0x32,
+ 0x03, 0x01, 0x7F, 0x01, 0x03,
+ 0x3F, 0x40, 0x40, 0x40, 0x3F,
+ 0x1F, 0x20, 0x40, 0x20, 0x1F,
+ 0x3F, 0x40, 0x38, 0x40, 0x3F,
+ 0x63, 0x14, 0x08, 0x14, 0x63,
+ 0x03, 0x04, 0x78, 0x04, 0x03,
+ 0x61, 0x59, 0x49, 0x4D, 0x43,
+ 0x00, 0x7F, 0x41, 0x41, 0x41,
+ 0x02, 0x04, 0x08, 0x10, 0x20,
+ 0x00, 0x41, 0x41, 0x41, 0x7F,
+ 0x04, 0x02, 0x01, 0x02, 0x04,
+ 0x40, 0x40, 0x40, 0x40, 0x40,
+ 0x00, 0x03, 0x07, 0x08, 0x00,
+ 0x20, 0x54, 0x54, 0x78, 0x40,
+ 0x7F, 0x28, 0x44, 0x44, 0x38,
+ 0x38, 0x44, 0x44, 0x44, 0x28,
+ 0x38, 0x44, 0x44, 0x28, 0x7F,
+ 0x38, 0x54, 0x54, 0x54, 0x18,
+ 0x00, 0x08, 0x7E, 0x09, 0x02,
+ 0x18, 0xA4, 0xA4, 0x9C, 0x78,
+ 0x7F, 0x08, 0x04, 0x04, 0x78,
+ 0x00, 0x44, 0x7D, 0x40, 0x00,
+ 0x20, 0x40, 0x40, 0x3D, 0x00,
+ 0x7F, 0x10, 0x28, 0x44, 0x00,
+ 0x00, 0x41, 0x7F, 0x40, 0x00,
+ 0x7C, 0x04, 0x78, 0x04, 0x78,
+ 0x7C, 0x08, 0x04, 0x04, 0x78,
+ 0x38, 0x44, 0x44, 0x44, 0x38,
+ 0xFC, 0x18, 0x24, 0x24, 0x18,
+ 0x18, 0x24, 0x24, 0x18, 0xFC,
+ 0x7C, 0x08, 0x04, 0x04, 0x08,
+ 0x48, 0x54, 0x54, 0x54, 0x24,
+ 0x04, 0x04, 0x3F, 0x44, 0x24,
+ 0x3C, 0x40, 0x40, 0x20, 0x7C,
+ 0x1C, 0x20, 0x40, 0x20, 0x1C,
+ 0x3C, 0x40, 0x30, 0x40, 0x3C,
+ 0x44, 0x28, 0x10, 0x28, 0x44,
+ 0x4C, 0x90, 0x90, 0x90, 0x7C,
+ 0x44, 0x64, 0x54, 0x4C, 0x44,
+ 0x00, 0x08, 0x36, 0x41, 0x00,
+ 0x00, 0x00, 0x77, 0x00, 0x00,
+ 0x00, 0x41, 0x36, 0x08, 0x00,
+ 0x02, 0x01, 0x02, 0x04, 0x02,
+ 0x3C, 0x26, 0x23, 0x26, 0x3C,
+ 0x1E, 0xA1, 0xA1, 0x61, 0x12,
+ 0x3A, 0x40, 0x40, 0x20, 0x7A,
+ 0x38, 0x54, 0x54, 0x55, 0x59,
+ 0x21, 0x55, 0x55, 0x79, 0x41,
+ 0x22, 0x54, 0x54, 0x78, 0x42, // a-umlaut
+ 0x21, 0x55, 0x54, 0x78, 0x40,
+ 0x20, 0x54, 0x55, 0x79, 0x40,
+ 0x0C, 0x1E, 0x52, 0x72, 0x12,
+ 0x39, 0x55, 0x55, 0x55, 0x59,
+ 0x39, 0x54, 0x54, 0x54, 0x59,
+ 0x39, 0x55, 0x54, 0x54, 0x58,
+ 0x00, 0x00, 0x45, 0x7C, 0x41,
+ 0x00, 0x02, 0x45, 0x7D, 0x42,
+ 0x00, 0x01, 0x45, 0x7C, 0x40,
+ 0x7D, 0x12, 0x11, 0x12, 0x7D, // A-umlaut
+ 0xF0, 0x28, 0x25, 0x28, 0xF0,
+ 0x7C, 0x54, 0x55, 0x45, 0x00,
+ 0x20, 0x54, 0x54, 0x7C, 0x54,
+ 0x7C, 0x0A, 0x09, 0x7F, 0x49,
+ 0x32, 0x49, 0x49, 0x49, 0x32,
+ 0x3A, 0x44, 0x44, 0x44, 0x3A, // o-umlaut
+ 0x32, 0x4A, 0x48, 0x48, 0x30,
+ 0x3A, 0x41, 0x41, 0x21, 0x7A,
+ 0x3A, 0x42, 0x40, 0x20, 0x78,
+ 0x00, 0x9D, 0xA0, 0xA0, 0x7D,
+ 0x3D, 0x42, 0x42, 0x42, 0x3D, // O-umlaut
+ 0x3D, 0x40, 0x40, 0x40, 0x3D,
+ 0x3C, 0x24, 0xFF, 0x24, 0x24,
+ 0x48, 0x7E, 0x49, 0x43, 0x66,
+ 0x2B, 0x2F, 0xFC, 0x2F, 0x2B,
+ 0xFF, 0x09, 0x29, 0xF6, 0x20,
+ 0xC0, 0x88, 0x7E, 0x09, 0x03,
+ 0x20, 0x54, 0x54, 0x79, 0x41,
+ 0x00, 0x00, 0x44, 0x7D, 0x41,
+ 0x30, 0x48, 0x48, 0x4A, 0x32,
+ 0x38, 0x40, 0x40, 0x22, 0x7A,
+ 0x00, 0x7A, 0x0A, 0x0A, 0x72,
+ 0x7D, 0x0D, 0x19, 0x31, 0x7D,
+ 0x26, 0x29, 0x29, 0x2F, 0x28,
+ 0x26, 0x29, 0x29, 0x29, 0x26,
+ 0x30, 0x48, 0x4D, 0x40, 0x20,
+ 0x38, 0x08, 0x08, 0x08, 0x08,
+ 0x08, 0x08, 0x08, 0x08, 0x38,
+ 0x2F, 0x10, 0xC8, 0xAC, 0xBA,
+ 0x2F, 0x10, 0x28, 0x34, 0xFA,
+ 0x00, 0x00, 0x7B, 0x00, 0x00,
+ 0x08, 0x14, 0x2A, 0x14, 0x22,
+ 0x22, 0x14, 0x2A, 0x14, 0x08,
+ 0x55, 0x00, 0x55, 0x00, 0x55, // #176 (25% block) missing in old code
+ 0xAA, 0x55, 0xAA, 0x55, 0xAA, // 50% block
+ 0xFF, 0x55, 0xFF, 0x55, 0xFF, // 75% block
+ 0x00, 0x00, 0x00, 0xFF, 0x00,
+ 0x10, 0x10, 0x10, 0xFF, 0x00,
+ 0x14, 0x14, 0x14, 0xFF, 0x00,
+ 0x10, 0x10, 0xFF, 0x00, 0xFF,
+ 0x10, 0x10, 0xF0, 0x10, 0xF0,
+ 0x14, 0x14, 0x14, 0xFC, 0x00,
+ 0x14, 0x14, 0xF7, 0x00, 0xFF,
+ 0x00, 0x00, 0xFF, 0x00, 0xFF,
+ 0x14, 0x14, 0xF4, 0x04, 0xFC,
+ 0x14, 0x14, 0x17, 0x10, 0x1F,
+ 0x10, 0x10, 0x1F, 0x10, 0x1F,
+ 0x14, 0x14, 0x14, 0x1F, 0x00,
+ 0x10, 0x10, 0x10, 0xF0, 0x00,
+ 0x00, 0x00, 0x00, 0x1F, 0x10,
+ 0x10, 0x10, 0x10, 0x1F, 0x10,
+ 0x10, 0x10, 0x10, 0xF0, 0x10,
+ 0x00, 0x00, 0x00, 0xFF, 0x10,
+ 0x10, 0x10, 0x10, 0x10, 0x10,
+ 0x10, 0x10, 0x10, 0xFF, 0x10,
+ 0x00, 0x00, 0x00, 0xFF, 0x14,
+ 0x00, 0x00, 0xFF, 0x00, 0xFF,
+ 0x00, 0x00, 0x1F, 0x10, 0x17,
+ 0x00, 0x00, 0xFC, 0x04, 0xF4,
+ 0x14, 0x14, 0x17, 0x10, 0x17,
+ 0x14, 0x14, 0xF4, 0x04, 0xF4,
+ 0x00, 0x00, 0xFF, 0x00, 0xF7,
+ 0x14, 0x14, 0x14, 0x14, 0x14,
+ 0x14, 0x14, 0xF7, 0x00, 0xF7,
+ 0x14, 0x14, 0x14, 0x17, 0x14,
+ 0x10, 0x10, 0x1F, 0x10, 0x1F,
+ 0x14, 0x14, 0x14, 0xF4, 0x14,
+ 0x10, 0x10, 0xF0, 0x10, 0xF0,
+ 0x00, 0x00, 0x1F, 0x10, 0x1F,
+ 0x00, 0x00, 0x00, 0x1F, 0x14,
+ 0x00, 0x00, 0x00, 0xFC, 0x14,
+ 0x00, 0x00, 0xF0, 0x10, 0xF0,
+ 0x10, 0x10, 0xFF, 0x10, 0xFF,
+ 0x14, 0x14, 0x14, 0xFF, 0x14,
+ 0x10, 0x10, 0x10, 0x1F, 0x00,
+ 0x00, 0x00, 0x00, 0xF0, 0x10,
+ 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
+ 0xF0, 0xF0, 0xF0, 0xF0, 0xF0,
+ 0xFF, 0xFF, 0xFF, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0xFF, 0xFF,
+ 0x0F, 0x0F, 0x0F, 0x0F, 0x0F,
+ 0x38, 0x44, 0x44, 0x38, 0x44,
+ 0xFC, 0x4A, 0x4A, 0x4A, 0x34, // sharp-s or beta
+ 0x7E, 0x02, 0x02, 0x06, 0x06,
+ 0x02, 0x7E, 0x02, 0x7E, 0x02,
+ 0x63, 0x55, 0x49, 0x41, 0x63,
+ 0x38, 0x44, 0x44, 0x3C, 0x04,
+ 0x40, 0x7E, 0x20, 0x1E, 0x20,
+ 0x06, 0x02, 0x7E, 0x02, 0x02,
+ 0x99, 0xA5, 0xE7, 0xA5, 0x99,
+ 0x1C, 0x2A, 0x49, 0x2A, 0x1C,
+ 0x4C, 0x72, 0x01, 0x72, 0x4C,
+ 0x30, 0x4A, 0x4D, 0x4D, 0x30,
+ 0x30, 0x48, 0x78, 0x48, 0x30,
+ 0xBC, 0x62, 0x5A, 0x46, 0x3D,
+ 0x3E, 0x49, 0x49, 0x49, 0x00,
+ 0x7E, 0x01, 0x01, 0x01, 0x7E,
+ 0x2A, 0x2A, 0x2A, 0x2A, 0x2A,
+ 0x44, 0x44, 0x5F, 0x44, 0x44,
+ 0x40, 0x51, 0x4A, 0x44, 0x40,
+ 0x40, 0x44, 0x4A, 0x51, 0x40,
+ 0x00, 0x00, 0xFF, 0x01, 0x03,
+ 0xE0, 0x80, 0xFF, 0x00, 0x00,
+ 0x08, 0x08, 0x6B, 0x6B, 0x08,
+ 0x36, 0x12, 0x36, 0x24, 0x36,
+ 0x06, 0x0F, 0x09, 0x0F, 0x06,
+ 0x00, 0x00, 0x18, 0x18, 0x00,
+ 0x00, 0x00, 0x10, 0x10, 0x00,
+ 0x30, 0x40, 0xFF, 0x01, 0x01,
+ 0x00, 0x1F, 0x01, 0x01, 0x1E,
+ 0x00, 0x19, 0x1D, 0x17, 0x12,
+ 0x00, 0x3C, 0x3C, 0x3C, 0x3C,
+ 0x00, 0x00, 0x00, 0x00, 0x00 // #255 NBSP
+};
+#endif // FONT5X7_H
diff --git a/keyboards/lets_split/config.h b/keyboards/lets_split/config.h
new file mode 100644
index 000000000..591c656a2
--- /dev/null
+++ b/keyboards/lets_split/config.h
@@ -0,0 +1,31 @@
+/*
+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_H
+#define CONFIG_H
+
+#include "config_common.h"
+
+#ifdef SUBPROJECT_rev1
+ #include "rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+ #include "rev2/config.h"
+#endif
+
+#endif
diff --git a/keyboards/lets_split/eeprom-lefthand.eep b/keyboards/lets_split/eeprom-lefthand.eep
new file mode 100644
index 000000000..b9666a74c
--- /dev/null
+++ b/keyboards/lets_split/eeprom-lefthand.eep
@@ -0,0 +1,2 @@
+:0B0000000000000000000000000001F4
+:00000001FF
diff --git a/keyboards/lets_split/eeprom-righthand.eep b/keyboards/lets_split/eeprom-righthand.eep
new file mode 100644
index 000000000..94cc5be7f
--- /dev/null
+++ b/keyboards/lets_split/eeprom-righthand.eep
@@ -0,0 +1,2 @@
+:0B0000000000000000000000000000F5
+:00000001FF
diff --git a/keyboards/lets_split/i2c.c b/keyboards/lets_split/i2c.c
new file mode 100644
index 000000000..084c890c4
--- /dev/null
+++ b/keyboards/lets_split/i2c.c
@@ -0,0 +1,162 @@
+#include <util/twi.h>
+#include <avr/io.h>
+#include <stdlib.h>
+#include <avr/interrupt.h>
+#include <util/twi.h>
+#include <stdbool.h>
+#include "i2c.h"
+
+#ifdef USE_I2C
+
+// Limits the amount of we wait for any one i2c transaction.
+// Since were running SCL line 100kHz (=> 10μs/bit), and each transactions is
+// 9 bits, a single transaction will take around 90μs to complete.
+//
+// (F_CPU/SCL_CLOCK) => # of μC cycles to transfer a bit
+// poll loop takes at least 8 clock cycles to execute
+#define I2C_LOOP_TIMEOUT (9+1)*(F_CPU/SCL_CLOCK)/8
+
+#define BUFFER_POS_INC() (slave_buffer_pos = (slave_buffer_pos+1)%SLAVE_BUFFER_SIZE)
+
+volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+static volatile uint8_t slave_buffer_pos;
+static volatile bool slave_has_register_set = false;
+
+// Wait for an i2c operation to finish
+inline static
+void i2c_delay(void) {
+ uint16_t lim = 0;
+ while(!(TWCR & (1<<TWINT)) && lim < I2C_LOOP_TIMEOUT)
+ lim++;
+
+ // easier way, but will wait slightly longer
+ // _delay_us(100);
+}
+
+// Setup twi to run at 100kHz
+void i2c_master_init(void) {
+ // no prescaler
+ TWSR = 0;
+ // Set TWI clock frequency to SCL_CLOCK. Need TWBR>10.
+ // Check datasheets for more info.
+ TWBR = ((F_CPU/SCL_CLOCK)-16)/2;
+}
+
+// Start a transaction with the given i2c slave address. The direction of the
+// transfer is set with I2C_READ and I2C_WRITE.
+// returns: 0 => success
+// 1 => error
+uint8_t i2c_master_start(uint8_t address) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTA);
+
+ i2c_delay();
+
+ // check that we started successfully
+ if ( (TW_STATUS != TW_START) && (TW_STATUS != TW_REP_START))
+ return 1;
+
+ TWDR = address;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ i2c_delay();
+
+ if ( (TW_STATUS != TW_MT_SLA_ACK) && (TW_STATUS != TW_MR_SLA_ACK) )
+ return 1; // slave did not acknowledge
+ else
+ return 0; // success
+}
+
+
+// Finish the i2c transaction.
+void i2c_master_stop(void) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (1<<TWSTO);
+
+ uint16_t lim = 0;
+ while(!(TWCR & (1<<TWSTO)) && lim < I2C_LOOP_TIMEOUT)
+ lim++;
+}
+
+// Write one byte to the i2c slave.
+// returns 0 => slave ACK
+// 1 => slave NACK
+uint8_t i2c_master_write(uint8_t data) {
+ TWDR = data;
+ TWCR = (1<<TWINT) | (1<<TWEN);
+
+ i2c_delay();
+
+ // check if the slave acknowledged us
+ return (TW_STATUS == TW_MT_DATA_ACK) ? 0 : 1;
+}
+
+// Read one byte from the i2c slave. If ack=1 the slave is acknowledged,
+// if ack=0 the acknowledge bit is not set.
+// returns: byte read from i2c device
+uint8_t i2c_master_read(int ack) {
+ TWCR = (1<<TWINT) | (1<<TWEN) | (ack<<TWEA);
+
+ i2c_delay();
+ return TWDR;
+}
+
+void i2c_reset_state(void) {
+ TWCR = 0;
+}
+
+void i2c_slave_init(uint8_t address) {
+ TWAR = address << 0; // slave i2c address
+ // TWEN - twi enable
+ // TWEA - enable address acknowledgement
+ // TWINT - twi interrupt flag
+ // TWIE - enable the twi interrupt
+ TWCR = (1<<TWIE) | (1<<TWEA) | (1<<TWINT) | (1<<TWEN);
+}
+
+ISR(TWI_vect);
+
+ISR(TWI_vect) {
+ uint8_t ack = 1;
+ switch(TW_STATUS) {
+ case TW_SR_SLA_ACK:
+ // this device has been addressed as a slave receiver
+ slave_has_register_set = false;
+ break;
+
+ case TW_SR_DATA_ACK:
+ // this device has received data as a slave receiver
+ // The first byte that we receive in this transaction sets the location
+ // of the read/write location of the slaves memory that it exposes over
+ // i2c. After that, bytes will be written at slave_buffer_pos, incrementing
+ // slave_buffer_pos after each write.
+ if(!slave_has_register_set) {
+ slave_buffer_pos = TWDR;
+ // don't acknowledge the master if this memory loctaion is out of bounds
+ if ( slave_buffer_pos >= SLAVE_BUFFER_SIZE ) {
+ ack = 0;
+ slave_buffer_pos = 0;
+ }
+ slave_has_register_set = true;
+ } else {
+ i2c_slave_buffer[slave_buffer_pos] = TWDR;
+ BUFFER_POS_INC();
+ }
+ break;
+
+ case TW_ST_SLA_ACK:
+ case TW_ST_DATA_ACK:
+ // master has addressed this device as a slave transmitter and is
+ // requesting data.
+ TWDR = i2c_slave_buffer[slave_buffer_pos];
+ BUFFER_POS_INC();
+ break;
+
+ case TW_BUS_ERROR: // something went wrong, reset twi state
+ TWCR = 0;
+ default:
+ break;
+ }
+ // Reset everything, so we are ready for the next TWI interrupt
+ TWCR |= (1<<TWIE) | (1<<TWINT) | (ack<<TWEA) | (1<<TWEN);
+}
+#endif
diff --git a/keyboards/lets_split/i2c.h b/keyboards/lets_split/i2c.h
new file mode 100644
index 000000000..c15b6bc50
--- /dev/null
+++ b/keyboards/lets_split/i2c.h
@@ -0,0 +1,49 @@
+#ifndef I2C_H
+#define I2C_H
+
+#include <stdint.h>
+
+#ifndef F_CPU
+#define F_CPU 16000000UL
+#endif
+
+#define I2C_READ 1
+#define I2C_WRITE 0
+
+#define I2C_ACK 1
+#define I2C_NACK 0
+
+#define SLAVE_BUFFER_SIZE 0x10
+
+// i2c SCL clock frequency
+#define SCL_CLOCK 400000L
+
+extern volatile uint8_t i2c_slave_buffer[SLAVE_BUFFER_SIZE];
+
+void i2c_master_init(void);
+uint8_t i2c_master_start(uint8_t address);
+void i2c_master_stop(void);
+uint8_t i2c_master_write(uint8_t data);
+uint8_t i2c_master_read(int);
+void i2c_reset_state(void);
+void i2c_slave_init(uint8_t address);
+
+
+static inline unsigned char i2c_start_read(unsigned char addr) {
+ return i2c_master_start((addr << 1) | I2C_READ);
+}
+
+static inline unsigned char i2c_start_write(unsigned char addr) {
+ return i2c_master_start((addr << 1) | I2C_WRITE);
+}
+
+// from SSD1306 scrips
+extern unsigned char i2c_rep_start(unsigned char addr);
+extern void i2c_start_wait(unsigned char addr);
+extern unsigned char i2c_readAck(void);
+extern unsigned char i2c_readNak(void);
+extern unsigned char i2c_read(unsigned char ack);
+
+#define i2c_read(ack) (ack) ? i2c_readAck() : i2c_readNak();
+
+#endif
diff --git a/keyboards/lets_split/keymaps/OLED_sample/Makefile b/keyboards/lets_split/keymaps/OLED_sample/Makefile
new file mode 100644
index 000000000..90616d1f1
--- /dev/null
+++ b/keyboards/lets_split/keymaps/OLED_sample/Makefile
@@ -0,0 +1,25 @@
+
+# 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 = yes # 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.
+ONEHAND_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 \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/OLED_sample/config.h b/keyboards/lets_split/keymaps/OLED_sample/config.h
new file mode 100644
index 000000000..c7cbc9372
--- /dev/null
+++ b/keyboards/lets_split/keymaps/OLED_sample/config.h
@@ -0,0 +1,59 @@
+/*
+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"
+
+/* Use I2C or Serial, not both */
+
+#define USE_I2C
+//#define USE_SERIAL
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+#define FLIP_HALF
+
+#define SSD1306OLED
+
+
+#define PREVENT_STUCK_MODIFIERS
+#define TAPPING_FORCE_HOLD
+#define TAPPING_TERM 100
+
+#ifdef SUBPROJECT_rev1
+ #include "../../rev1/config.h"
+#endif
+#ifdef SUBPROJECT_rev2
+ #include "../../rev2/config.h"
+#endif
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 6
+#define RGBLIGHT_HUE_STEP 10
+#define RGBLIGHT_SAT_STEP 17
+#define RGBLIGHT_VAL_STEP 17
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/OLED_sample/keymap.c b/keyboards/lets_split/keymaps/OLED_sample/keymap.c
new file mode 100644
index 000000000..274f917e2
--- /dev/null
+++ b/keyboards/lets_split/keymaps/OLED_sample/keymap.c
@@ -0,0 +1,359 @@
+#include "lets_split.h"
+#include "bootloader.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+#include "tmk_core/protocol/lufa/LUFA-git/LUFA/Drivers/Peripheral/TWI.h"
+#ifdef AUDIO_ENABLE
+ #include "audio.h"
+#endif
+#ifdef SSD1306OLED
+ #include "ssd1306.h"
+#endif
+
+extern keymap_config_t keymap_config;
+
+//Following line allows macro to read current RGB settings
+extern rgblight_config_t rgblight_config;
+
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ ADJUST,
+ BACKLIT,
+ RGBLED_TOGGLE,
+ RGBLED_STEP_MODE,
+ RGBLED_INCREASE_HUE,
+ RGBLED_DECREASE_HUE,
+ RGBLED_INCREASE_SAT,
+ RGBLED_DECREASE_SAT,
+ RGBLED_INCREASE_VAL,
+ RGBLED_DECREASE_VAL,
+};
+
+enum macro_keycodes {
+ KC_SAMPLEMACRO,
+};
+
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+//Macros
+#define M_SAMPLE M(KC_SAMPLEMACRO)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | F | P | G | J | L | U | Y | ; | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | R | S | T | D | H | N | E | I | O | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, \
+ KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | " | , | . | P | Y | F | G | C | R | L | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | O | E | U | I | D | H | T | N | S | / |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| ; | Q | J | K | X | B | M | W | V | Z |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+ KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC, \
+ KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, \
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | | \ | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO ~ |ISO | | | |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO # |ISO / | | |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NUHS, KC_NUBS, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | | Reset| | | | | | | | | | Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | | | | | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+ _______, RESET, _______, M_SAMPLE, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+ _______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+
+#ifdef AUDIO_ENABLE
+
+float tone_startup[][2] = SONG(STARTUP_SOUND);
+float tone_qwerty[][2] = SONG(QWERTY_SOUND);
+float tone_dvorak[][2] = SONG(DVORAK_SOUND);
+float tone_colemak[][2] = SONG(COLEMAK_SOUND);
+float tone_plover[][2] = SONG(PLOVER_SOUND);
+float tone_plover_gb[][2] = SONG(PLOVER_GOODBYE_SOUND);
+float music_scale[][2] = SONG(MUSIC_SCALE_SOUND);
+float tone_goodbye[][2] = SONG(GOODBYE_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)) {
+ rgblight_mode(RGB_current_mode);
+ layer_on(layer3);
+ } else {
+ layer_off(layer3);
+ }
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case QWERTY:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_QWERTY);
+ }
+ return false;
+ break;
+ case COLEMAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ //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;
+ rgblight_mode(16);
+ }
+ layer_on(_LOWER);
+ update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+ } else {
+ rgblight_mode(RGB_current_mode); // revert RGB to initial mode prior to RGB mode change
+ TOG_STATUS = false;
+ layer_off(_LOWER);
+ update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ //not sure how to have keyboard check mode and set it to a variable, so my work around
+ //uses another variable that would be set to true after the first time a reactive key is pressed.
+ if (TOG_STATUS) { //TOG_STATUS checks is another reactive key currently pressed, only changes RGB mode if returns false
+ } else {
+ TOG_STATUS = !TOG_STATUS;
+ rgblight_mode(15);
+ }
+ layer_on(_RAISE);
+ update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+ } else {
+ rgblight_mode(RGB_current_mode); // revert RGB to initial mode prior to RGB mode change
+ layer_off(_RAISE);
+ TOG_STATUS = false;
+ update_tri_layer_RGB(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case BACKLIT:
+ if (record->event.pressed) {
+ register_code(KC_RSFT);
+ #ifdef BACKLIGHT_ENABLE
+ backlight_step();
+ #endif
+ } else {
+ unregister_code(KC_RSFT);
+ }
+ return false;
+ break;
+ //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:
+ if (record->event.pressed) {
+ rgblight_mode(RGB_current_mode);
+ rgblight_step();
+ RGB_current_mode = rgblight_config.mode;
+ }
+ return false;
+ break;
+ }
+ return true;
+}
+
+void matrix_init_user(void) {
+ #ifdef AUDIO_ENABLE
+ startup_user();
+ #endif
+ RGB_current_mode = rgblight_config.mode;
+}
+
+//SSD1306 OLED init and update loop, make sure to add #define SSD1306OLED in config.h
+#ifdef SSD1306OLED
+void matrix_master_OLED_init (void) {
+ TWI_Init(TWI_BIT_PRESCALE_1, TWI_BITLENGTH_FROM_FREQ(1, 800000));
+ iota_gfx_init(); // turns on the display
+}
+
+void matrix_scan_user(void) {
+ iota_gfx_task(); // this is what updates the display continuously
+}
+#endif
+
+#ifdef AUDIO_ENABLE
+
+void startup_user()
+{
+ _delay_ms(20); // gets rid of tick
+ PLAY_NOTE_ARRAY(tone_startup, false, 0);
+}
+
+void shutdown_user()
+{
+ PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+ _delay_ms(150);
+ stop_all_notes();
+}
+
+void music_on_user(void)
+{
+ music_scale_user();
+}
+
+void music_scale_user(void)
+{
+ PLAY_NOTE_ARRAY(music_scale, false, 0);
+}
+
+#endif
+
+/*
+ * Macro definition
+ */
+const macro_t *action_get_macro(keyrecord_t *record, uint8_t id, uint8_t opt)
+{
+ if (!eeconfig_is_enabled()) {
+ eeconfig_init();
+ }
+
+ switch (id) {
+ case KC_SAMPLEMACRO:
+ if (record->event.pressed){
+ return MACRO (I(10), T(H), T(E), T(L), T(L), T(O), T(SPACE), T(W), T(O), T(R), T(L), T(D), END);
+ }
+
+ }
+
+ return MACRO_NONE;
+}
diff --git a/keyboards/lets_split/keymaps/OLED_sample/readme.md b/keyboards/lets_split/keymaps/OLED_sample/readme.md
new file mode 100644
index 000000000..02888855b
--- /dev/null
+++ b/keyboards/lets_split/keymaps/OLED_sample/readme.md
@@ -0,0 +1,25 @@
+SSD1306 OLED Display via I2C
+======
+
+Features
+--------
+
+Some features supported by the firmware:
+
+
+* I2C connection between the two halves is required as the OLED display will use this connection as well. Note this
+ requires pull-up resistors on the data and clock lines.
+* OLED display will connect from either side
+
+
+Wiring
+------
+
+
+Work in progress...
+
+
+OLED Configuration
+-------------------------------
+
+Work in progress...
diff --git a/keyboards/lets_split/keymaps/adam/config.h b/keyboards/lets_split/keymaps/adam/config.h
new file mode 100644
index 000000000..7496876b5
--- /dev/null
+++ b/keyboards/lets_split/keymaps/adam/config.h
@@ -0,0 +1,50 @@
+/*
+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"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+// #define MASTER_LEFT
+// #define _MASTER_RIGHT
+#define EE_HANDS
+
+#ifdef SUBPROJECT_rev2
+ /* RGB Underglow */
+ #undef RGBLED_NUM
+ #define RGBLIGHT_ANIMATIONS
+ #define RGBLED_NUM 8
+#endif
+
+#undef TAPPING_TERM
+#define TAPPING_TERM 200 //At 500 some bad logic takes hold
+#define PREVENT_STUCK_MODIFIERS
+#define IGNORE_MOD_TAP_INTERRUPT
+#define PERMISSIVE_HOLD
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/adam/keymap.c b/keyboards/lets_split/keymaps/adam/keymap.c
new file mode 100644
index 000000000..8aca73256
--- /dev/null
+++ b/keyboards/lets_split/keymaps/adam/keymap.c
@@ -0,0 +1,79 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define BASE 0 // default layer
+#define FLOCK 1 // symbols arrows and F keys on F held down
+#define JLOCK 2 // same as Flock but with fall thru J and mapped to J held down
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt | GUI |Lower | Bksp |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[BASE] = KEYMAP ( \
+ TD(1), KC_2, KC_3, KC_4, KC_5, KC_MINS, KC_EQL, KC_6, KC_7, KC_8, KC_9, KC_0, \
+ KC_Q, KC_W, KC_E, KC_R, KC_T, KC_TAB, KC_TAB, KC_Y, KC_U, KC_I, KC_O, KC_P, \
+ SFT_T(KC_A), ALT_T(KC_S),CTL_T(KC_D), F(FLOCK), GUI_T(KC_G), KC_BSPC, KC_DELETE, GUI_T(KC_H), F(JLOCK), CTL_T(KC_K), ALT_T(KC_L), SFT_T(KC_SCLN), \
+ KC_Z, KC_X, KC_C, KC_V, KC_B, KC_SPC, KC_ENT, KC_N, KC_M, KC_COMM, KC_DOT, KC_QUOTE
+),
+[FLOCK] = KEYMAP ( \
+ KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F11, KC_F12, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, \
+ KC_LBRC, KC_GRV, KC_TILDE, S(KC_1), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGUP, XXXXXXX, KC_RBRC, \
+ S(KC_LBRC), _______, _______, _______, _______, XXXXXXX, XXXXXXX, KC_LEFT, KC_DOWN, KC_UP, KC_RIGHT, S(KC_RBRC), \
+ KC_BSLS, KC_PIPE, XXXXXXX, XXXXXXX, XXXXXXX, KC_ESC, KC_ESC, XXXXXXX, KC_END, KC_PGDOWN, KC_QUES, KC_SLASH \
+),
+[JLOCK] = KEYMAP ( \
+ KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F11, KC_F12, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, \
+ KC_LBRC, KC_GRV, KC_TILDE, S(KC_1), XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_HOME, KC_PGUP, XXXXXXX, KC_RBRC, \
+ S(KC_LBRC), _______, _______, _______, _______, XXXXXXX, XXXXXXX, KC_LEFT, _______, KC_UP, KC_RIGHT, S(KC_RBRC), \
+ KC_BSLS, KC_PIPE, XXXXXXX, XXXXXXX, XXXXXXX, KC_ESC, KC_ESC, XXXXXXX, KC_END, KC_PGDOWN, KC_QUES, KC_SLASH \
+)
+};
+
+const uint16_t PROGMEM fn_actions[] = {
+ [FLOCK] = ACTION_LAYER_TAP_KEY(FLOCK,KC_F),
+ [JLOCK] = ACTION_LAYER_TAP_KEY(JLOCK,KC_J)
+};
+#ifdef TAP_DANCE_ENABLE
+void tap_1(qk_tap_dance_state_t *state, void *user_data) {
+ switch (state->count) {
+ case 1:
+ register_code (KC_1);
+ unregister_code (KC_1);
+ break;
+ case 2:
+ register_code (KC_ESC);
+ unregister_code (KC_ESC);
+ break;
+ case 3:
+ register_code (KC_LSFT);
+ register_code (KC_1);
+ unregister_code (KC_1);
+ unregister_code (KC_LSFT);
+ }
+}
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+ [0] = ACTION_TAP_DANCE_DOUBLE(KC_1, KC_ESC),
+ [1] = ACTION_TAP_DANCE_FN(tap_1)
+};
+#endif
diff --git a/keyboards/lets_split/keymaps/adam/makefile b/keyboards/lets_split/keymaps/adam/makefile
new file mode 100644
index 000000000..e5ddcae8d
--- /dev/null
+++ b/keyboards/lets_split/keymaps/adam/makefile
@@ -0,0 +1 @@
+TAP_DANCE_ENABLE = yes
diff --git a/keyboards/lets_split/keymaps/default/Makefile b/keyboards/lets_split/keymaps/default/Makefile
new file mode 100644
index 000000000..457a3d01d
--- /dev/null
+++ b/keyboards/lets_split/keymaps/default/Makefile
@@ -0,0 +1,3 @@
+ifndef QUANTUM_DIR
+ include ../../../../Makefile
+endif
diff --git a/keyboards/lets_split/keymaps/default/config.h b/keyboards/lets_split/keymaps/default/config.h
new file mode 100644
index 000000000..7f33a4363
--- /dev/null
+++ b/keyboards/lets_split/keymaps/default/config.h
@@ -0,0 +1,37 @@
+/*
+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"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/default/keymap.c b/keyboards/lets_split/keymaps/default/keymap.c
new file mode 100644
index 000000000..936312b2e
--- /dev/null
+++ b/keyboards/lets_split/keymaps/default/keymap.c
@@ -0,0 +1,214 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | F | P | G | J | L | U | Y | ; | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | R | S | T | D | H | N | E | I | O | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, \
+ KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | " | , | . | P | Y | F | G | C | R | L | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | O | E | U | I | D | H | T | N | S | / |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| ; | Q | J | K | X | B | M | W | V | Z |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+ KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC, \
+ KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, \
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | | \ | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO ~ |ISO | | | |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,S(KC_NUHS),S(KC_NUBS),_______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO # |ISO / | | |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NUHS, KC_NUBS, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | | Reset| | | | | | | | | | Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | | | | | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+ _______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+ _______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2] = SONG(QWERTY_SOUND);
+float tone_dvorak[][2] = SONG(DVORAK_SOUND);
+float tone_colemak[][2] = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+ eeconfig_update_default_layer(default_layer);
+ default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case QWERTY:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_QWERTY);
+ }
+ return false;
+ break;
+ case COLEMAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case ADJUST:
+ if (record->event.pressed) {
+ layer_on(_ADJUST);
+ } else {
+ layer_off(_ADJUST);
+ }
+ return false;
+ break;
+ }
+ return true;
+} \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/hexwire/Makefile b/keyboards/lets_split/keymaps/hexwire/Makefile
new file mode 100644
index 000000000..1e5761278
--- /dev/null
+++ b/keyboards/lets_split/keymaps/hexwire/Makefile
@@ -0,0 +1,5 @@
+RGBLIGHT_ENABLE = yes
+
+ifndef QUANTUM_DIR
+ include ../../../../Makefile
+endif
diff --git a/keyboards/lets_split/keymaps/hexwire/README.md b/keyboards/lets_split/keymaps/hexwire/README.md
new file mode 100644
index 000000000..edf2b6627
--- /dev/null
+++ b/keyboards/lets_split/keymaps/hexwire/README.md
@@ -0,0 +1,108 @@
+Hexwire's Let's Split Layout
+============================
+
+### Changes from default layout
+
+- Main layer
+ - The right space bar key has been changed to backspace, as I only hit space with my left thumb
+ - Backtick is at the lower right and also serves goes to the 3rd function layer when held
+ - Enter key acts as shift when held
+ - Escape key acts as control when held
+ - Minus key at upper right
+- Lower layer
+ - Numbers are on the lower layer, to make it easier to use a numpad on the right hand
+ - Arrow keys
+ - Straight and curly brackets in the middle two columns
+ - Screenshot keys for MacOS
+- Upper layer
+ - Symbols are on the upper layer
+ - Media keys
+ - Page Up/Down, Home/End
+- 3rd function layer
+ - Function keys
+
+## Layouts
+
+### Qwerty
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB , Q , W , E , R , T , Y , U , I , O , P ,MINS,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , S , D , F , G , H , J , K , L ,SCLN,QUOT,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT, Z , X , C , V , B , N , M ,COMM,DOT ,SLSH, X4 ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
+
+### Colemak
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB , Q , W , F , P , G , J , L , U , Y ,SCLN,MINS,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , R , S , T , D , H , N , E , I , O ,QUOT,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT, Z , X , C , V , B , K , M ,COMM,DOT ,SLSH, X4 ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
+
+### Dvorak
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB ,QUOT,COMM,DOT , P , Y , F , G , C , R , L ,MINS,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , O , E , U , I , D , H , R , N , S ,SLSH,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT,SCLN, Q , J , K , X , B , M , W , V , Z , X4 ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
+
+### Lower
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 , ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ DEL ,CAPP,LEFT,RGHT, UP ,LBRC, RBRC, P4 , P5 , P6 ,PLUS,PIPE,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ ,CPYP, , ,DOWN,LCBR, RCBR, P1 , P2 , P3 ,MINS, ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , DEL , , P0 ,PDOT, ,
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
+
+### Raise
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ ,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN, ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ DEL ,MPRV,MNXT,VOLU,PGUP,UNDS, EQL ,HOME, , , ,BSLS,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ MUTE,MSTP,MPLY,VOLD,PGDN,MINS, PLUS,END , , , , ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , ,
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
+
+### 3rd function layer
+
+```
+,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ F12 , F1 , F2 , F3 , F4 , F5 , F6 , F7 , F8 , F9 ,F10 ,F11 ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , , ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , , ,
+|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , ,
+`----+----+----+----+----+----' `----+----+----+----+----+----'
+```
diff --git a/keyboards/lets_split/keymaps/hexwire/config.h b/keyboards/lets_split/keymaps/hexwire/config.h
new file mode 100644
index 000000000..e29b40c98
--- /dev/null
+++ b/keyboards/lets_split/keymaps/hexwire/config.h
@@ -0,0 +1,26 @@
+#ifndef CONFIG_USER_H
+#define CONFIG_USER_H
+
+#include "../../config.h"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+#define TAPPING_TERM 150
+
+#undef RGBLED_NUM
+#define RGBLIGHT_ANIMATIONS
+#define RGBLED_NUM 8
+#define RGBLIGHT_HUE_STEP 8
+#define RGBLIGHT_SAT_STEP 8
+#define RGBLIGHT_VAL_STEP 8
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/hexwire/keymap.c b/keyboards/lets_split/keymaps/hexwire/keymap.c
new file mode 100644
index 000000000..1ef65c52b
--- /dev/null
+++ b/keyboards/lets_split/keymaps/hexwire/keymap.c
@@ -0,0 +1,205 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _FN3 5
+#define _FN4 6
+#define _ADJUST 16
+
+enum custom_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ FN3,
+ FN4,
+ ADJUST,
+};
+
+#define KC_ KC_TRNS
+#define _______ KC_TRNS
+
+#define KC_CAPW LGUI(LSFT(KC_3)) // Capture whole screen
+#define KC_CPYW LGUI(LSFT(LCTL(KC_3))) // Copy whole screen
+#define KC_CAPP LGUI(LSFT(KC_4)) // Capture portion of screen
+#define KC_CPYP LGUI(LSFT(LCTL(KC_4))) // Copy portion of screen
+#define KC_X0 MT(MOD_LCTL, KC_ESC)
+#define KC_X1 LOWER
+#define KC_X2 RAISE
+#define KC_X3 LT(_FN3, KC_GRV)
+#define KC_X4 MT(MOD_LSFT, KC_ENT)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+ [_QWERTY] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB , Q , W , E , R , T , Y , U , I , O , P ,MINS,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , S , D , F , G , H , J , K , L ,SCLN,QUOT,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT, Z , X , C , V , B , N , M ,COMM,DOT ,SLSH, X4 ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+ [_COLEMAK] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB , Q , W , F , P , G , J , L , U , Y ,SCLN,MINS,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , R , S , T , D , H , N , E , I , O ,QUOT,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT, Z , X , C , V , B , K , M ,COMM,DOT ,SLSH, X4 ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+ [_DVORAK] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ TAB ,QUOT,COMM,DOT , P , Y , F , G , C , R , L ,MINS,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X0 , A , O , E , U , I , D , H , T , N , S ,SLSH,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ LSFT,SCLN, Q , J , K , X , B , M , W , V , Z , X4 ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ X3 ,LCTL,LALT,LGUI, X1 ,SPC , BSPC, X2 ,LEFT,DOWN, UP ,RGHT
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+ [_LOWER] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ , 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 0 , ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ DEL ,CAPP,LEFT,RGHT, UP ,LBRC, RBRC, P4 , P5 , P6 ,PLUS,PIPE,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ ,CPYP, , ,DOWN,LCBR, RCBR, P1 , P2 , P3 ,MINS, ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , DEL , , P0 ,PDOT, ,
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+ [_RAISE] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ ,EXLM, AT ,HASH,DLR ,PERC, CIRC,AMPR,ASTR,LPRN,RPRN, ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ DEL ,MPRV,MNXT,VOLU,PGUP,UNDS, EQL ,HOME, , , ,BSLS,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ MUTE,MSTP,MPLY,VOLD,PGDN,MINS, PLUS,END , , , , ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , ,
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+ [_FN3] = KC_KEYMAP(
+ //,----+----+----+----+----+----. ,----+----+----+----+----+----.
+ F12 , F1 , F2 , F3 , F4 , F5 , F6 , F7 , F8 , F9 ,F10 ,F11 ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , , ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , , ,
+ //|----+----+----+----+----+----| |----+----+----+----+----+----|
+ , , , , , , , , , , ,
+ //`----+----+----+----+----+----' `----+----+----+----+----+----'
+ ),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | | Reset|RGB Tg|RGB Md|Hue Up|Hue Dn|Sat Up|Sat Dn|Val Up|Val Dn| | |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | | | | | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+ [_ADJUST] = KEYMAP( \
+ _______, RESET , RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, \
+ _______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+ )
+
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2] = SONG(QWERTY_SOUND);
+float tone_dvorak[][2] = SONG(DVORAK_SOUND);
+float tone_colemak[][2] = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+ eeconfig_update_default_layer(default_layer);
+ default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case QWERTY:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_QWERTY);
+ }
+ return false;
+ break;
+ case COLEMAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case ADJUST:
+ if (record->event.pressed) {
+ layer_on(_ADJUST);
+ } else {
+ layer_off(_ADJUST);
+ }
+ return false;
+ break;
+ }
+ return true;
+}
diff --git a/keyboards/lets_split/keymaps/khord/Makefile b/keyboards/lets_split/keymaps/khord/Makefile
new file mode 100644
index 000000000..c90523e5d
--- /dev/null
+++ b/keyboards/lets_split/keymaps/khord/Makefile
@@ -0,0 +1,7 @@
+TAP_DANCE_ENABLE = yes
+RGBLIGHT_ENABLE = yes
+USE_I2C = no
+
+ifndef QUANTUM_DIR
+ include ../../../../Makefile
+endif
diff --git a/keyboards/lets_split/keymaps/khord/config.h b/keyboards/lets_split/keymaps/khord/config.h
new file mode 100644
index 000000000..ea10960dd
--- /dev/null
+++ b/keyboards/lets_split/keymaps/khord/config.h
@@ -0,0 +1,41 @@
+/*
+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"
+
+#define TAPPING_TERM 150
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+//#define MASTER_LEFT
+// #define _MASTER_RIGHT
+#define EE_HANDS
+
+#define RGBLIGHT_ANIMATIONS
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/khord/keymap.c b/keyboards/lets_split/keymaps/khord/keymap.c
new file mode 100644
index 000000000..2aaab5e86
--- /dev/null
+++ b/keyboards/lets_split/keymaps/khord/keymap.c
@@ -0,0 +1,235 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Tap Dance Declarations
+enum {
+ SFT_CAP = 0,
+ LFT_HOM,
+ DWN_PDN,
+ UPP_PUP,
+ RGT_END
+};
+
+// Dylan's additions
+#define C_A_DEL LALT(LCTL(KC_DEL))
+#define C_A_INS LALT(LCTL(KC_INS))
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ CTL_T(KC_ESC), KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ TD(SFT_CAP), KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, SFT_T(KC_ENT), \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | F | P | G | J | L | U | Y | ; | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | R | S | T | D | H | N | E | I | O | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+ KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, \
+ KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | " | , | . | P | Y | F | G | C | R | L | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | O | E | U | I | D | H | T | N | S | / |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| ; | Q | J | K | X | B | M | W | V | Z |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * |Adjust| Ctrl | Alt | GUI |Lower |Space |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+ KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC, \
+ KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_SLSH, \
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_ENT , \
+ ADJUST, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | { | } | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO ~ |ISO | | END | HOME |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_UNDS, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12,S(KC_NUHS),S(KC_NUBS),KC_END, KC_HOME, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Del | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 |ISO # |ISO / |PG DN |PG UP |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_BSPC, \
+ KC_DEL, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_MINS, KC_EQL, KC_LBRC, KC_RBRC, KC_BSLS, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_NUHS, KC_NUBS, KC_PGDN, KC_PGUP, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | | Reset| | | | | | | | | | Del |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | | |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | | | | | | | | | | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+ _______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_DEL, \
+ _______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, RGB_TOG, RGB_MOD, RGB_HUD, RGB_HUI, RGB_SAD, RGB_SAI, RGB_VAD, RGB_VAI, _______, _______, C_A_INS, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, C_A_DEL \
+)
+
+
+};
+
+qk_tap_dance_action_t tap_dance_actions[] = {
+ [SFT_CAP] = ACTION_TAP_DANCE_DOUBLE(KC_LSFT, KC_CAPS),
+ [LFT_HOM] = ACTION_TAP_DANCE_DOUBLE(KC_LEFT, KC_HOME),
+ [DWN_PDN] = ACTION_TAP_DANCE_DOUBLE(KC_DOWN, KC_PGDN),
+ [UPP_PUP] = ACTION_TAP_DANCE_DOUBLE(KC_UP, KC_PGUP),
+ [RGT_END] = ACTION_TAP_DANCE_DOUBLE(KC_RGHT, KC_END)
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2] = SONG(QWERTY_SOUND);
+float tone_dvorak[][2] = SONG(DVORAK_SOUND);
+float tone_colemak[][2] = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+ eeconfig_update_default_layer(default_layer);
+ default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case QWERTY:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_QWERTY);
+ }
+ return false;
+ break;
+ case COLEMAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case ADJUST:
+ if (record->event.pressed) {
+ layer_on(_ADJUST);
+ } else {
+ layer_off(_ADJUST);
+ }
+ return false;
+ break;
+ }
+ return true;
+}
diff --git a/keyboards/lets_split/keymaps/smt/config.h b/keyboards/lets_split/keymaps/smt/config.h
new file mode 100644
index 000000000..3274fcca6
--- /dev/null
+++ b/keyboards/lets_split/keymaps/smt/config.h
@@ -0,0 +1,37 @@
+/*
+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"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+#endif
diff --git a/keyboards/lets_split/keymaps/smt/keymap.c b/keyboards/lets_split/keymaps/smt/keymap.c
new file mode 100644
index 000000000..18d409f08
--- /dev/null
+++ b/keyboards/lets_split/keymaps/smt/keymap.c
@@ -0,0 +1,219 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum custom_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ ADJUST,
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+// Custom macros
+#define CTL_ESC CTL_T(KC_ESC) // Tap for Esc, hold for Ctrl
+#define SFT_ENT SFT_T(KC_ENT) // Tap for Enter, hold for Shift
+#define HPR_TAB ALL_T(KC_TAB) // Tap for Tab, hold for Hyper (Super+Ctrl+Alt+Shift)
+#define MEH_GRV MEH_T(KC_GRV) // Tap for Backtick, hold for Meh (Ctrl+Alt+Shift)
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab | Q | W | E | R | T | | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_QWERTY] = KEYMAP( \
+ HPR_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ CTL_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, SFT_ENT, \
+ MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Colemak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab | Q | W | F | P | G | | J | L | U | Y | ; | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc | A | R | S | T | D | | H | N | E | I | O | " |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | | K | M | , | . | / |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_COLEMAK] = KEYMAP( \
+ HPR_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, \
+ CTL_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, SFT_ENT, \
+ MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Dvorak
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | Tab | " | , | . | P | Y | | F | G | C | R | L | Bksp |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Esc | A | O | E | U | I | | D | H | T | N | S | - |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | Shift| ; | Q | J | K | X | | B | M | W | V | Z |Enter |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_DVORAK] = KEYMAP( \
+ HPR_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_BSPC, \
+ CTL_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_MINS, \
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, SFT_ENT, \
+ MEH_GRV, KC_LCTL, KC_LALT, KC_LGUI, LOWER, KC_SPC, KC_SPC, RAISE, KC_LEFT, KC_DOWN, KC_UP, KC_RGHT
+),
+
+/* Lower
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | 0 | 1 | 2 | 3 | 4 | 5 | | 6 | 7 | 8 | 9 | 0 | Del |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | $ | F1 | F2 | F3 | F4 | F5 | | F6 | 4 | 5 | 6 | | |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | | F12 | 1 | 2 | 3 | | |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | | | Next | Vol- | Vol+ | Play |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_LOWER] = KEYMAP( \
+ ALL_T(KC_0), KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_DEL, \
+ CTL_T(KC_DLR), KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_4, KC_5, KC_6, _______, _______, \
+ _______, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_1, KC_2, KC_3, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_MNXT, KC_VOLD, KC_VOLU, KC_MPLY
+),
+
+/* Raise
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | ~ | ! | @ | # | $ | % | | ^ | & | * | ( | ) | Del |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | _ | ? | + | { | } | | |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | - | / | = | [ | ] | \ |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | | | Home |PageDn|PageUp| End |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_RAISE] = KEYMAP( \
+ ALL_T(KC_TILD), KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, KC_DEL, \
+ _______, _______, _______, _______, _______, _______, KC_UNDS, KC_QUES, KC_PLUS, KC_LCBR, KC_RCBR, KC_PIPE, \
+ _______, _______, _______, _______, _______, _______, KC_MINS, KC_SLSH, KC_EQL, KC_LBRC, KC_RBRC, SFT_T(KC_BSLS), \
+ _______, _______, _______, _______, _______, _______, _______, _______, KC_HOME, KC_PGDN, KC_PGUP, KC_END
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------. ,-----------------------------------------.
+ * | | Reset| | | | | | | | | | | Reset|
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | | | | | | |
+ * |------+------+------+------+------+------| |------+------+------+------+------+------|
+ * | | | | | | | | | | | | | |
+ * `-----------------------------------------' `-----------------------------------------'
+ */
+[_ADJUST] = KEYMAP( \
+ _______, RESET, _______, _______, _______, _______, _______, _______, _______, _______, _______, RESET, \
+ _______, _______, _______, AU_ON, AU_OFF, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+)
+
+};
+
+#ifdef AUDIO_ENABLE
+float tone_qwerty[][2] = SONG(QWERTY_SOUND);
+float tone_dvorak[][2] = SONG(DVORAK_SOUND);
+float tone_colemak[][2] = SONG(COLEMAK_SOUND);
+#endif
+
+void persistent_default_layer_set(uint16_t default_layer) {
+ eeconfig_update_default_layer(default_layer);
+ default_layer_set(default_layer);
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+ case QWERTY:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_qwerty, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_QWERTY);
+ }
+ return false;
+ break;
+ case COLEMAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_colemak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_dvorak, false, 0);
+ #endif
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case ADJUST:
+ if (record->event.pressed) {
+ layer_on(_ADJUST);
+ } else {
+ layer_off(_ADJUST);
+ }
+ return false;
+ break;
+ }
+ return true;
+}
diff --git a/keyboards/lets_split/keymaps/smt/readme.md b/keyboards/lets_split/keymaps/smt/readme.md
new file mode 100644
index 000000000..20bc662f0
--- /dev/null
+++ b/keyboards/lets_split/keymaps/smt/readme.md
@@ -0,0 +1,88 @@
+# smt's Let's Split keymap
+
+This keymap is ported from my Planck keymap.
+
+
+## Qwerty
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab | Q | W | E | R | T | | Y | U | I | O | P | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc | A | S | D | F | G | | H | J | K | L | ; | " |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift| Z | X | C | V | B | | N | M | , | . | / |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Colemak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab | Q | W | F | P | G | | J | L | U | Y | ; | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc | A | R | S | T | D | | H | N | E | I | O | " |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift| Z | X | C | V | B | | K | M | , | . | / |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Dvorak
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| Tab | " | , | . | P | Y | | F | G | C | R | L | Bksp |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Esc | A | O | E | U | I | | D | H | T | N | S | - |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| Shift| ; | Q | J | K | X | | B | M | W | V | Z |Enter |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| ` | Ctrl | Alt | GUI |Lower |Space | |Space |Raise | Left | Down | Up |Right |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Lower
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| 0 | 1 | 2 | 3 | 4 | 5 | | 6 | 7 | 8 | 9 | 0 | Del |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| $ | F1 | F2 | F3 | F4 | F5 | | F6 | 4 | 5 | 6 | | |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | F7 | F8 | F9 | F10 | F11 | | F12 | 1 | 2 | 3 | | |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | | | Next | Vol- | Vol+ | Play |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Raise
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| ~ | ! | @ | # | $ | % | | ^ | & | * | ( | ) | Del |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | _ | ? | + | { | } | | |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | - | / | = | [ | ] | \ |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | | | Home |PageDn|PageUp| End |
+`-----------------------------------------' `-----------------------------------------'
+```
+
+## Adjust (Lower + Raise)
+
+```
+,-----------------------------------------. ,-----------------------------------------.
+| | Reset| | | | | | | | | | | Reset|
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | |Aud on|Audoff|AGnorm| |AGswap|Qwerty|Colemk|Dvorak| | |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | | | | | | |
+|------+------+------+------+------+------| |------+------+------+------+------+------|
+| | | | | | | | | | | | | |
+`-----------------------------------------' `-----------------------------------------'
+```
diff --git a/keyboards/lets_split/keymaps/xyverz/config.h b/keyboards/lets_split/keymaps/xyverz/config.h
new file mode 100644
index 000000000..a21ca3699
--- /dev/null
+++ b/keyboards/lets_split/keymaps/xyverz/config.h
@@ -0,0 +1,45 @@
+/*
+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"
+
+/* Use I2C or Serial, not both */
+
+#define USE_SERIAL
+// #define USE_I2C
+
+/* Select hand configuration */
+
+#define MASTER_LEFT
+// #define _MASTER_RIGHT
+// #define EE_HANDS
+
+
+#ifdef SUBPROJECT_rev2
+ /* RGB Underglow */
+ #undef RGBLED_NUM
+ #define RGBLIGHT_ANIMATIONS
+ #define RGBLED_NUM 8
+#endif
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/keymaps/xyverz/keymap.c b/keyboards/lets_split/keymaps/xyverz/keymap.c
new file mode 100644
index 000000000..45edf78c8
--- /dev/null
+++ b/keyboards/lets_split/keymaps/xyverz/keymap.c
@@ -0,0 +1,191 @@
+#include "lets_split.h"
+#include "action_layer.h"
+#include "eeconfig.h"
+
+extern keymap_config_t keymap_config;
+
+// Each layer gets a name for readability, which is then used in the keymap matrix below.
+// The underscores don't mean anything - you can have a layer called STUFF or any other name.
+// Layer names don't all need to be of the same length, obviously, and you can also skip them
+// entirely and just use numbers.
+#define _QWERTY 0
+#define _COLEMAK 1
+#define _DVORAK 2
+#define _LOWER 3
+#define _RAISE 4
+#define _ADJUST 16
+
+enum planck_keycodes {
+ QWERTY = SAFE_RANGE,
+ COLEMAK,
+ DVORAK,
+ LOWER,
+ RAISE,
+ ADJUST
+};
+
+// Fillers to make layering more clear
+#define _______ KC_TRNS
+#define XXXXXXX KC_NO
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+/* Qwerty
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | E | R | T | Y | U | I | O | P | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | S | D | F | G | H | J | K | L | ; | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | N | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt | GUI |Lower | Bksp |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_QWERTY] = KEYMAP ( \
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC, \
+ KC_ESC, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT,\
+ KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER, GUI_T(KC_BSPC), KC_SPC, RAISE, KC_UP, KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Colemak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | Q | W | F | P | G | J | L | U | Y | ; | Bksp |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | R | S | T | D | H | N | E | I | O | " |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| Z | X | C | V | B | K | M | , | . | / |Enter |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| Ctrl | Alt | GUI |Lower | Bksp |Space |Raise | Left | Down | Up |Right |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_COLEMAK] = KEYMAP ( \
+ KC_TAB, KC_Q, KC_W, KC_F, KC_P, KC_G, KC_J, KC_L, KC_U, KC_Y, KC_SCLN, KC_BSPC, \
+ KC_ESC, KC_A, KC_R, KC_S, KC_T, KC_D, KC_H, KC_N, KC_E, KC_I, KC_O, KC_QUOT, \
+ KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_K, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, \
+ KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER, GUI_T(KC_BSPC), KC_SPC, RAISE, KC_UP, KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Dvorak
+ * ,-----------------------------------------------------------------------------------.
+ * | Tab | " | , | . | P | Y | F | G | C | R | L | / |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Esc | A | O | E | U | I | D | H | T | N | S | - |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | Shift| ; | Q | J | K | X | B | M | W | V | Z | Shift|
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Ctrl | Alt | Left |Right |Lower | Bksp |Space |Raise | Up | Down | GUI |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_DVORAK] = KEYMAP ( \
+ KC_TAB, KC_QUOT, KC_COMM, KC_DOT, KC_P, KC_Y, KC_F, KC_G, KC_C, KC_R, KC_L, KC_SLSH, \
+ KC_ESC, KC_A, KC_O, KC_E, KC_U, KC_I, KC_D, KC_H, KC_T, KC_N, KC_S, KC_MINS, \
+ KC_LSFT, KC_SCLN, KC_Q, KC_J, KC_K, KC_X, KC_B, KC_M, KC_W, KC_V, KC_Z, KC_RSFT, \
+ KC_LCTL, KC_LALT, KC_LEFT, KC_RGHT, LOWER, GUI_T(KC_BSPC), KC_SPC, RAISE, KC_UP, KC_DOWN, KC_RGUI, KC_ENT \
+),
+
+/* Lower
+ * ,-----------------------------------------------------------------------------------.
+ * | ~ | ! | @ | # | $ | % | ^ | & | * | ( | ) | |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Caps | F1 | F2 | F3 | F4 | F5 | F6 | _ | + | { | } | | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | Mute | Vol- | Vol+ | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| | Home | End | | Del | Ins | | PgUp | PgDN | |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_LOWER] = KEYMAP ( \
+ KC_TILD, KC_EXLM, KC_AT, KC_HASH, KC_DLR, KC_PERC, KC_CIRC, KC_AMPR, KC_ASTR, KC_LPRN, KC_RPRN, _______, \
+ KC_CAPS, 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_MUTE, KC_VOLD, KC_VOLU, _______, _______, \
+ _______, _______, KC_HOME, KC_END, _______, KC_DEL, KC_INS, _______, KC_PGUP, KC_PGDN, _______, _______ \
+),
+
+/* Raise
+ * ,-----------------------------------------------------------------------------------.
+ * | ` | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 0 | |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | Caps | F1 | F2 | F3 | F4 | F5 | F6 | - | = | [ | ] | \ |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | | F7 | F8 | F9 | F10 | F11 | F12 | | Prev | Play | Next | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | Brite| | Home | End | | Del | Ins | | PgUp | PgDN | |Enter |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_RAISE] = KEYMAP ( \
+ KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, _______, \
+ KC_CAPS, 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_MPRV, KC_MPLY, KC_MNXT, _______, _______, \
+ _______, _______, KC_HOME, KC_END, _______, KC_DEL, KC_INS, _______, KC_PGUP, KC_PGDN, _______, _______ \
+),
+
+/* Adjust (Lower + Raise)
+ * ,-----------------------------------------------------------------------------------.
+ * | F11 | F1 | F2 | F3 | F4 | F5 | F6 | F7 | F8 | F9 | F10 | F12 |
+ * |------+------+------+------+------+-------------+------+------+------+------+------|
+ * | | Reset| |Aud on|Audoff|AGnorm|AGswap|Qwerty|Colemk|Dvorak| | |
+ * |------+------+------+------+------+------|------+------+------+------+------+------|
+ * | |RGB ON| MODE | HUE+ | HUE- | SAT+ | SAT- | VAL+ | VAL- | | | |
+ * |------+------+------+------+------+------+------+------+------+------+------+------|
+ * | | | | | | | | | | | |
+ * `-----------------------------------------------------------------------------------'
+ */
+[_ADJUST] = KEYMAP ( \
+ KC_F11, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F12 , \
+ _______, RESET, _______, _______, _______, AG_NORM, AG_SWAP, QWERTY, COLEMAK, DVORAK, _______, _______, \
+ _______, RGB_TOG, RGB_MOD, RGB_HUI, RGB_HUD, RGB_SAI, RGB_SAD, RGB_VAI, RGB_VAD, _______, _______, _______, \
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______ \
+)
+
+
+};
+
+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 COLEMAK:
+ if (record->event.pressed) {
+ persistent_default_layer_set(1UL<<_COLEMAK);
+ }
+ return false;
+ break;
+ case DVORAK:
+ if (record->event.pressed) {
+ persistent_default_layer_set(1UL<<_DVORAK);
+ }
+ return false;
+ break;
+ case LOWER:
+ if (record->event.pressed) {
+ layer_on(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_LOWER);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ case RAISE:
+ if (record->event.pressed) {
+ layer_on(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ } else {
+ layer_off(_RAISE);
+ update_tri_layer(_LOWER, _RAISE, _ADJUST);
+ }
+ return false;
+ break;
+ }
+ return true;
+}
diff --git a/keyboards/lets_split/lets_split.c b/keyboards/lets_split/lets_split.c
new file mode 100644
index 000000000..117b727a8
--- /dev/null
+++ b/keyboards/lets_split/lets_split.c
@@ -0,0 +1 @@
+#include "lets_split.h" \ No newline at end of file
diff --git a/keyboards/lets_split/lets_split.h b/keyboards/lets_split/lets_split.h
new file mode 100644
index 000000000..f7dc24a44
--- /dev/null
+++ b/keyboards/lets_split/lets_split.h
@@ -0,0 +1,27 @@
+#ifndef LETS_SPLIT_H
+#define LETS_SPLIT_H
+
+#ifdef SUBPROJECT_rev1
+ #include "rev1.h"
+#endif
+#ifdef SUBPROJECT_rev2
+ #include "rev2.h"
+#endif
+
+// Used to create a keymap using only KC_ prefixed keys
+#define KC_KEYMAP( \
+ 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 \
+ ) \
+ KEYMAP( \
+ 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 \
+ )
+
+#include "quantum.h"
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/matrix.c b/keyboards/lets_split/matrix.c
new file mode 100644
index 000000000..81dfb1445
--- /dev/null
+++ b/keyboards/lets_split/matrix.c
@@ -0,0 +1,316 @@
+/*
+Copyright 2012 Jun Wako <wakojun@gmail.com>
+
+This program is free software: you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation, either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+/*
+ * scan matrix
+ */
+#include <stdint.h>
+#include <stdbool.h>
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include "print.h"
+#include "debug.h"
+#include "util.h"
+#include "matrix.h"
+#include "split_util.h"
+#include "pro_micro.h"
+#include "config.h"
+
+#ifdef USE_I2C
+# include "i2c.h"
+#else // USE_SERIAL
+# include "serial.h"
+#endif
+
+#ifndef DEBOUNCE
+# define DEBOUNCE 5
+#endif
+
+#define ERROR_DISCONNECT_COUNT 5
+
+static uint8_t debouncing = DEBOUNCE;
+static const int ROWS_PER_HAND = MATRIX_ROWS/2;
+static uint8_t error_count = 0;
+
+static const uint8_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
+static const uint8_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
+
+/* matrix state(1:on, 0:off) */
+static matrix_row_t matrix[MATRIX_ROWS];
+static matrix_row_t matrix_debouncing[MATRIX_ROWS];
+
+static matrix_row_t read_cols(void);
+static void init_cols(void);
+static void unselect_rows(void);
+static void select_row(uint8_t row);
+
+__attribute__ ((weak))
+void matrix_init_quantum(void) {
+ matrix_init_kb();
+}
+
+__attribute__ ((weak))
+void matrix_scan_quantum(void) {
+ matrix_scan_kb();
+}
+
+__attribute__ ((weak))
+void matrix_init_kb(void) {
+ matrix_init_user();
+}
+
+__attribute__ ((weak))
+void matrix_scan_kb(void) {
+ matrix_scan_user();
+}
+
+__attribute__ ((weak))
+void matrix_init_user(void) {
+}
+
+__attribute__ ((weak))
+void matrix_scan_user(void) {
+}
+
+inline
+uint8_t matrix_rows(void)
+{
+ return MATRIX_ROWS;
+}
+
+inline
+uint8_t matrix_cols(void)
+{
+ return MATRIX_COLS;
+}
+
+void matrix_init(void)
+{
+ debug_enable = true;
+ debug_matrix = true;
+ debug_mouse = true;
+ // initialize row and col
+ unselect_rows();
+ init_cols();
+
+ TX_RX_LED_INIT;
+
+ // initialize matrix state: all keys off
+ for (uint8_t i=0; i < MATRIX_ROWS; i++) {
+ matrix[i] = 0;
+ matrix_debouncing[i] = 0;
+ }
+
+ matrix_init_quantum();
+}
+
+uint8_t _matrix_scan(void)
+{
+ // Right hand is stored after the left in the matirx so, we need to offset it
+ int offset = isLeftHand ? 0 : (ROWS_PER_HAND);
+
+ for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+ select_row(i);
+ _delay_us(30); // without this wait read unstable value.
+ matrix_row_t cols = read_cols();
+ if (matrix_debouncing[i+offset] != cols) {
+ matrix_debouncing[i+offset] = cols;
+ debouncing = DEBOUNCE;
+ }
+ unselect_rows();
+ }
+
+ if (debouncing) {
+ if (--debouncing) {
+ _delay_ms(1);
+ } else {
+ for (uint8_t i = 0; i < ROWS_PER_HAND; i++) {
+ matrix[i+offset] = matrix_debouncing[i+offset];
+ }
+ }
+ }
+
+ return 1;
+}
+
+#ifdef USE_I2C
+
+// Get rows from other half over i2c
+int i2c_transaction(void) {
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+ int err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_WRITE);
+ if (err) goto i2c_error;
+
+ // start of matrix stored at 0x00
+ err = i2c_master_write(0x00);
+ if (err) goto i2c_error;
+
+ // Start read
+ err = i2c_master_start(SLAVE_I2C_ADDRESS + I2C_READ);
+ if (err) goto i2c_error;
+
+ if (!err) {
+ int i;
+ for (i = 0; i < ROWS_PER_HAND-1; ++i) {
+ matrix[slaveOffset+i] = i2c_master_read(I2C_ACK);
+ }
+ matrix[slaveOffset+i] = i2c_master_read(I2C_NACK);
+ i2c_master_stop();
+ } else {
+i2c_error: // the cable is disconnceted, or something else went wrong
+ i2c_reset_state();
+ return err;
+ }
+
+ return 0;
+}
+
+#else // USE_SERIAL
+
+int serial_transaction(void) {
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+
+ if (serial_update_buffers()) {
+ return 1;
+ }
+
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ matrix[slaveOffset+i] = serial_slave_buffer[i];
+ }
+ return 0;
+}
+#endif
+
+uint8_t matrix_scan(void)
+{
+ int ret = _matrix_scan();
+
+
+
+#ifdef USE_I2C
+ if( i2c_transaction() ) {
+#else // USE_SERIAL
+ if( serial_transaction() ) {
+#endif
+ // turn on the indicator led when halves are disconnected
+ TXLED1;
+
+ error_count++;
+
+ if (error_count > ERROR_DISCONNECT_COUNT) {
+ // reset other half if disconnected
+ int slaveOffset = (isLeftHand) ? (ROWS_PER_HAND) : 0;
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ matrix[slaveOffset+i] = 0;
+ }
+ }
+ } else {
+ // turn off the indicator led on no error
+ TXLED0;
+ error_count = 0;
+ }
+ matrix_scan_quantum();
+ return ret;
+}
+
+void matrix_slave_scan(void) {
+ _matrix_scan();
+
+ int offset = (isLeftHand) ? 0 : (MATRIX_ROWS / 2);
+
+#ifdef USE_I2C
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ /* i2c_slave_buffer[i] = matrix[offset+i]; */
+ i2c_slave_buffer[i] = matrix[offset+i];
+ }
+#else // USE_SERIAL
+ for (int i = 0; i < ROWS_PER_HAND; ++i) {
+ serial_slave_buffer[i] = matrix[offset+i];
+ }
+#endif
+}
+
+bool matrix_is_modified(void)
+{
+ if (debouncing) return false;
+ return true;
+}
+
+inline
+bool matrix_is_on(uint8_t row, uint8_t col)
+{
+ return (matrix[row] & ((matrix_row_t)1<<col));
+}
+
+inline
+matrix_row_t matrix_get_row(uint8_t row)
+{
+ return matrix[row];
+}
+
+void matrix_print(void)
+{
+ print("\nr/c 0123456789ABCDEF\n");
+ for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+ phex(row); print(": ");
+ pbin_reverse16(matrix_get_row(row));
+ print("\n");
+ }
+}
+
+uint8_t matrix_key_count(void)
+{
+ uint8_t count = 0;
+ for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
+ count += bitpop16(matrix[i]);
+ }
+ return count;
+}
+
+static void init_cols(void)
+{
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ _SFR_IO8((col_pins[x] >> 4) + 1) &= ~_BV(col_pins[x] & 0xF);
+ _SFR_IO8((col_pins[x] >> 4) + 2) |= _BV(col_pins[x] & 0xF);
+ }
+}
+
+static matrix_row_t read_cols(void)
+{
+ matrix_row_t result = 0;
+ for(int x = 0; x < MATRIX_COLS; x++) {
+ result |= (_SFR_IO8(col_pins[x] >> 4) & _BV(col_pins[x] & 0xF)) ? 0 : (1 << x);
+ }
+ return result;
+}
+
+static void unselect_rows(void)
+{
+ for(int x = 0; x < ROWS_PER_HAND; x++) {
+ _SFR_IO8((row_pins[x] >> 4) + 1) &= ~_BV(row_pins[x] & 0xF);
+ _SFR_IO8((row_pins[x] >> 4) + 2) |= _BV(row_pins[x] & 0xF);
+ }
+}
+
+static void select_row(uint8_t row)
+{
+ _SFR_IO8((row_pins[row] >> 4) + 1) |= _BV(row_pins[row] & 0xF);
+ _SFR_IO8((row_pins[row] >> 4) + 2) &= ~_BV(row_pins[row] & 0xF);
+}
diff --git a/keyboards/lets_split/pro_micro.h b/keyboards/lets_split/pro_micro.h
new file mode 100644
index 000000000..f9e7ed75d
--- /dev/null
+++ b/keyboards/lets_split/pro_micro.h
@@ -0,0 +1,362 @@
+/*
+ pins_arduino.h - Pin definition functions for Arduino
+ Part of Arduino - http://www.arduino.cc/
+
+ Copyright (c) 2007 David A. Mellis
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ This library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General
+ Public License along with this library; if not, write to the
+ Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+ Boston, MA 02111-1307 USA
+
+ $Id: wiring.h 249 2007-02-03 16:52:51Z mellis $
+*/
+
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <avr/pgmspace.h>
+
+// Workaround for wrong definitions in "iom32u4.h".
+// This should be fixed in the AVR toolchain.
+#undef UHCON
+#undef UHINT
+#undef UHIEN
+#undef UHADDR
+#undef UHFNUM
+#undef UHFNUML
+#undef UHFNUMH
+#undef UHFLEN
+#undef UPINRQX
+#undef UPINTX
+#undef UPNUM
+#undef UPRST
+#undef UPCONX
+#undef UPCFG0X
+#undef UPCFG1X
+#undef UPSTAX
+#undef UPCFG2X
+#undef UPIENX
+#undef UPDATX
+#undef TCCR2A
+#undef WGM20
+#undef WGM21
+#undef COM2B0
+#undef COM2B1
+#undef COM2A0
+#undef COM2A1
+#undef TCCR2B
+#undef CS20
+#undef CS21
+#undef CS22
+#undef WGM22
+#undef FOC2B
+#undef FOC2A
+#undef TCNT2
+#undef TCNT2_0
+#undef TCNT2_1
+#undef TCNT2_2
+#undef TCNT2_3
+#undef TCNT2_4
+#undef TCNT2_5
+#undef TCNT2_6
+#undef TCNT2_7
+#undef OCR2A
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+#undef OCR2B
+#undef OCR2_0
+#undef OCR2_1
+#undef OCR2_2
+#undef OCR2_3
+#undef OCR2_4
+#undef OCR2_5
+#undef OCR2_6
+#undef OCR2_7
+
+#define NUM_DIGITAL_PINS 30
+#define NUM_ANALOG_INPUTS 12
+
+#define TX_RX_LED_INIT DDRD |= (1<<5), DDRB |= (1<<0)
+#define TXLED0 PORTD |= (1<<5)
+#define TXLED1 PORTD &= ~(1<<5)
+#define RXLED0 PORTB |= (1<<0)
+#define RXLED1 PORTB &= ~(1<<0)
+
+static const uint8_t SDA = 2;
+static const uint8_t SCL = 3;
+#define LED_BUILTIN 13
+
+// Map SPI port to 'new' pins D14..D17
+static const uint8_t SS = 17;
+static const uint8_t MOSI = 16;
+static const uint8_t MISO = 14;
+static const uint8_t SCK = 15;
+
+// Mapping of analog pins as digital I/O
+// A6-A11 share with digital pins
+static const uint8_t ADC0 = 18;
+static const uint8_t ADC1 = 19;
+static const uint8_t ADC2 = 20;
+static const uint8_t ADC3 = 21;
+static const uint8_t ADC4 = 22;
+static const uint8_t ADC5 = 23;
+static const uint8_t ADC6 = 24; // D4
+static const uint8_t ADC7 = 25; // D6
+static const uint8_t ADC8 = 26; // D8
+static const uint8_t ADC9 = 27; // D9
+static const uint8_t ADC10 = 28; // D10
+static const uint8_t ADC11 = 29; // D12
+
+#define digitalPinToPCICR(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCICR) : ((uint8_t *)0))
+#define digitalPinToPCICRbit(p) 0
+#define digitalPinToPCMSK(p) ((((p) >= 8 && (p) <= 11) || ((p) >= 14 && (p) <= 17) || ((p) >= A8 && (p) <= A10)) ? (&PCMSK0) : ((uint8_t *)0))
+#define digitalPinToPCMSKbit(p) ( ((p) >= 8 && (p) <= 11) ? (p) - 4 : ((p) == 14 ? 3 : ((p) == 15 ? 1 : ((p) == 16 ? 2 : ((p) == 17 ? 0 : (p - A8 + 4))))))
+
+// __AVR_ATmega32U4__ has an unusual mapping of pins to channels
+extern const uint8_t PROGMEM analog_pin_to_channel_PGM[];
+#define analogPinToChannel(P) ( pgm_read_byte( analog_pin_to_channel_PGM + (P) ) )
+
+#define digitalPinToInterrupt(p) ((p) == 0 ? 2 : ((p) == 1 ? 3 : ((p) == 2 ? 1 : ((p) == 3 ? 0 : ((p) == 7 ? 4 : NOT_AN_INTERRUPT)))))
+
+#ifdef ARDUINO_MAIN
+
+// On the Arduino board, digital pins are also used
+// for the analog output (software PWM). Analog input
+// pins are a separate set.
+
+// ATMEL ATMEGA32U4 / ARDUINO LEONARDO
+//
+// D0 PD2 RXD1/INT2
+// D1 PD3 TXD1/INT3
+// D2 PD1 SDA SDA/INT1
+// D3# PD0 PWM8/SCL OC0B/SCL/INT0
+// D4 A6 PD4 ADC8
+// D5# PC6 ??? OC3A/#OC4A
+// D6# A7 PD7 FastPWM #OC4D/ADC10
+// D7 PE6 INT6/AIN0
+//
+// D8 A8 PB4 ADC11/PCINT4
+// D9# A9 PB5 PWM16 OC1A/#OC4B/ADC12/PCINT5
+// D10# A10 PB6 PWM16 OC1B/0c4B/ADC13/PCINT6
+// D11# PB7 PWM8/16 0C0A/OC1C/#RTS/PCINT7
+// D12 A11 PD6 T1/#OC4D/ADC9
+// D13# PC7 PWM10 CLK0/OC4A
+//
+// A0 D18 PF7 ADC7
+// A1 D19 PF6 ADC6
+// A2 D20 PF5 ADC5
+// A3 D21 PF4 ADC4
+// A4 D22 PF1 ADC1
+// A5 D23 PF0 ADC0
+//
+// New pins D14..D17 to map SPI port to digital pins
+//
+// MISO D14 PB3 MISO,PCINT3
+// SCK D15 PB1 SCK,PCINT1
+// MOSI D16 PB2 MOSI,PCINT2
+// SS D17 PB0 RXLED,SS/PCINT0
+//
+// Connected LEDs on board for TX and RX
+// TXLED D24 PD5 XCK1
+// RXLED D17 PB0
+// HWB PE2 HWB
+
+// these arrays map port names (e.g. port B) to the
+// appropriate addresses for various functions (e.g. reading
+// and writing)
+const uint16_t PROGMEM port_to_mode_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &DDRB,
+ (uint16_t) &DDRC,
+ (uint16_t) &DDRD,
+ (uint16_t) &DDRE,
+ (uint16_t) &DDRF,
+};
+
+const uint16_t PROGMEM port_to_output_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PORTB,
+ (uint16_t) &PORTC,
+ (uint16_t) &PORTD,
+ (uint16_t) &PORTE,
+ (uint16_t) &PORTF,
+};
+
+const uint16_t PROGMEM port_to_input_PGM[] = {
+ NOT_A_PORT,
+ NOT_A_PORT,
+ (uint16_t) &PINB,
+ (uint16_t) &PINC,
+ (uint16_t) &PIND,
+ (uint16_t) &PINE,
+ (uint16_t) &PINF,
+};
+
+const uint8_t PROGMEM digital_pin_to_port_PGM[] = {
+ PD, // D0 - PD2
+ PD, // D1 - PD3
+ PD, // D2 - PD1
+ PD, // D3 - PD0
+ PD, // D4 - PD4
+ PC, // D5 - PC6
+ PD, // D6 - PD7
+ PE, // D7 - PE6
+
+ PB, // D8 - PB4
+ PB, // D9 - PB5
+ PB, // D10 - PB6
+ PB, // D11 - PB7
+ PD, // D12 - PD6
+ PC, // D13 - PC7
+
+ PB, // D14 - MISO - PB3
+ PB, // D15 - SCK - PB1
+ PB, // D16 - MOSI - PB2
+ PB, // D17 - SS - PB0
+
+ PF, // D18 - A0 - PF7
+ PF, // D19 - A1 - PF6
+ PF, // D20 - A2 - PF5
+ PF, // D21 - A3 - PF4
+ PF, // D22 - A4 - PF1
+ PF, // D23 - A5 - PF0
+
+ PD, // D24 - PD5
+ PD, // D25 / D6 - A7 - PD7
+ PB, // D26 / D8 - A8 - PB4
+ PB, // D27 / D9 - A9 - PB5
+ PB, // D28 / D10 - A10 - PB6
+ PD, // D29 / D12 - A11 - PD6
+};
+
+const uint8_t PROGMEM digital_pin_to_bit_mask_PGM[] = {
+ _BV(2), // D0 - PD2
+ _BV(3), // D1 - PD3
+ _BV(1), // D2 - PD1
+ _BV(0), // D3 - PD0
+ _BV(4), // D4 - PD4
+ _BV(6), // D5 - PC6
+ _BV(7), // D6 - PD7
+ _BV(6), // D7 - PE6
+
+ _BV(4), // D8 - PB4
+ _BV(5), // D9 - PB5
+ _BV(6), // D10 - PB6
+ _BV(7), // D11 - PB7
+ _BV(6), // D12 - PD6
+ _BV(7), // D13 - PC7
+
+ _BV(3), // D14 - MISO - PB3
+ _BV(1), // D15 - SCK - PB1
+ _BV(2), // D16 - MOSI - PB2
+ _BV(0), // D17 - SS - PB0
+
+ _BV(7), // D18 - A0 - PF7
+ _BV(6), // D19 - A1 - PF6
+ _BV(5), // D20 - A2 - PF5
+ _BV(4), // D21 - A3 - PF4
+ _BV(1), // D22 - A4 - PF1
+ _BV(0), // D23 - A5 - PF0
+
+ _BV(5), // D24 - PD5
+ _BV(7), // D25 / D6 - A7 - PD7
+ _BV(4), // D26 / D8 - A8 - PB4
+ _BV(5), // D27 / D9 - A9 - PB5
+ _BV(6), // D28 / D10 - A10 - PB6
+ _BV(6), // D29 / D12 - A11 - PD6
+};
+
+const uint8_t PROGMEM digital_pin_to_timer_PGM[] = {
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ TIMER0B, /* 3 */
+ NOT_ON_TIMER,
+ TIMER3A, /* 5 */
+ TIMER4D, /* 6 */
+ NOT_ON_TIMER,
+
+ NOT_ON_TIMER,
+ TIMER1A, /* 9 */
+ TIMER1B, /* 10 */
+ TIMER0A, /* 11 */
+
+ NOT_ON_TIMER,
+ TIMER4A, /* 13 */
+
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+ NOT_ON_TIMER,
+};
+
+const uint8_t PROGMEM analog_pin_to_channel_PGM[] = {
+ 7, // A0 PF7 ADC7
+ 6, // A1 PF6 ADC6
+ 5, // A2 PF5 ADC5
+ 4, // A3 PF4 ADC4
+ 1, // A4 PF1 ADC1
+ 0, // A5 PF0 ADC0
+ 8, // A6 D4 PD4 ADC8
+ 10, // A7 D6 PD7 ADC10
+ 11, // A8 D8 PB4 ADC11
+ 12, // A9 D9 PB5 ADC12
+ 13, // A10 D10 PB6 ADC13
+ 9 // A11 D12 PD6 ADC9
+};
+
+#endif /* ARDUINO_MAIN */
+
+// These serial port names are intended to allow libraries and architecture-neutral
+// sketches to automatically default to the correct port name for a particular type
+// of use. For example, a GPS module would normally connect to SERIAL_PORT_HARDWARE_OPEN,
+// the first hardware serial port whose RX/TX pins are not dedicated to another use.
+//
+// SERIAL_PORT_MONITOR Port which normally prints to the Arduino Serial Monitor
+//
+// SERIAL_PORT_USBVIRTUAL Port which is USB virtual serial
+//
+// SERIAL_PORT_LINUXBRIDGE Port which connects to a Linux system via Bridge library
+//
+// SERIAL_PORT_HARDWARE Hardware serial port, physical RX & TX pins.
+//
+// SERIAL_PORT_HARDWARE_OPEN Hardware serial ports which are open for use. Their RX & TX
+// pins are NOT connected to anything by default.
+#define SERIAL_PORT_MONITOR Serial
+#define SERIAL_PORT_USBVIRTUAL Serial
+#define SERIAL_PORT_HARDWARE Serial1
+#define SERIAL_PORT_HARDWARE_OPEN Serial1
+
+#endif /* Pins_Arduino_h */
diff --git a/keyboards/lets_split/readme.md b/keyboards/lets_split/readme.md
new file mode 100644
index 000000000..610b776ee
--- /dev/null
+++ b/keyboards/lets_split/readme.md
@@ -0,0 +1,184 @@
+Let's Split
+======
+
+This readme and most of the code are from https://github.com/ahtn/tmk_keyboard/
+
+Split keyboard firmware for Arduino Pro Micro or other ATmega32u4
+based boards.
+
+**Hardware files for the Let's Split are now stored at http://qmk.fm/lets_split/**
+
+## Build Guide
+
+A build guide for putting together the Let's Split v2 can be found here: [An Overly Verbose Guide to Building a Let's Split Keyboard](https://github.com/nicinabox/lets-split-guide)
+
+There is additional information there about flashing and adding RGB underglow.
+
+## First Time Setup
+
+Download or clone the whole firmware and navigate to the keyboards/lets_split directory. Once your dev env is setup, you'll be able to generate the default .hex using:
+
+```
+$ make rev2-default
+```
+
+You will see a lot of output and if everything worked correctly you will see the built hex file:
+
+```
+lets_split_rev2_default.hex
+```
+
+If you would like to use one of the alternative keymaps, or create your own, copy one of the existing [keymaps](keymaps/) and run make like so:
+
+
+```
+$ make rev2-YOUR_KEYMAP_NAME
+```
+
+If everything worked correctly you will see a file:
+
+```
+lets_split_rev2_YOUR_KEYMAP_NAME.hex
+```
+
+For more information on customizing keymaps, take a look at the primary documentation for [Customizing Your Keymap](/readme.md##customizing-your-keymap) in the main readme.md.
+
+### Let's split 1.0
+If you have a first generation Let's Split you will need to use the revision 1 code. To do so, use `rev1` in all your commands instead.
+
+Features
+--------
+
+For the full Quantum Mechanical Keyboard feature list, see [the parent readme.md](/readme.md).
+
+Some features supported by the firmware:
+
+* Either half can connect to the computer via USB, or both halves can be used
+ independently.
+* You only need 3 wires to connect the two halves. Two for VCC and GND and one
+ for serial communication.
+* Optional support for I2C connection between the two halves if for some
+ reason you require a faster connection between the two halves. Note this
+ requires an extra wire between halves and pull-up resistors on the data lines.
+
+Required Hardware
+-----------------
+
+Apart from diodes and key switches for the keyboard matrix in each half, you
+will need:
+
+* 2 Arduino Pro Micro's. You can find theses on aliexpress for ≈3.50USD each.
+* 2 TRRS sockets and 1 TRRS cable, or 2 TRS sockets and 1 TRS cable
+
+Alternatively, you can use any sort of cable and socket that has at least 3
+wires. If you want to use I2C to communicate between halves, you will need a
+cable with at least 4 wires and 2x 4.7kΩ pull-up resistors
+
+Optional Hardware
+-----------------
+
+A speaker can be hooked-up to either side to the `5` (`C6`) pin and `GND`, and turned on via `AUDIO_ENABLE`.
+
+Wiring
+------
+
+The 3 wires of the TRS/TRRS cable need to connect GND, VCC, and digital pin 3 (i.e.
+PD0 on the ATmega32u4) between the two Pro Micros.
+
+Then wire your key matrix to any of the remaining 17 IO pins of the pro micro
+and modify the `matrix.c` accordingly.
+
+The wiring for serial:
+
+![serial wiring](https://i.imgur.com/C3D1GAQ.png)
+
+The wiring for i2c:
+
+![i2c wiring](https://i.imgur.com/Hbzhc6E.png)
+
+The pull-up resistors may be placed on either half. It is also possible
+to use 4 resistors and have the pull-ups in both halves, but this is
+unnecessary in simple use cases.
+
+You can change your configuration between serial and i2c by modifying your `config.h` file.
+
+Notes on Software Configuration
+-------------------------------
+
+Configuring the firmware is similar to any other QMK project. One thing
+to note is that `MATIX_ROWS` in `config.h` is the total number of rows between
+the two halves, i.e. if your split keyboard has 4 rows in each half, then
+`MATRIX_ROWS=8`.
+
+Also the current implementation assumes a maximum of 8 columns, but it would
+not be very difficult to adapt it to support more if required.
+
+Flashing
+-------
+From the keymap directory run `make SUBPROJECT-KEYMAP-avrdude` for automatic serial port resolution and flashing.
+Example: `make rev2-default-avrdude`
+
+
+Choosing which board to plug the USB cable into (choosing Master)
+--------
+Because the two boards are identical, the firmware has logic to differentiate the left and right board.
+
+It uses two strategies to figure things out: look at the EEPROM (memory on the chip) or looks if the current board has the usb cable.
+
+The EEPROM approach requires additional setup (flashing the eeeprom) but allows you to swap the usb cable to either side.
+
+The USB cable approach is easier to setup and if you just want the usb cable on the left board, you do not need to do anything extra.
+
+### Setting the left hand as master
+If you always plug the usb cable into the left board, nothing extra is needed as this is the default. Comment out `EE_HANDS` and comment out `I2C_MASTER_RIGHT` or `MASTER_RIGHT` if for some reason it was set.
+
+### Setting the right hand as master
+If you always plug the usb cable into the right board, add an extra flag to your `config.h`
+```
+ #define MASTER_RIGHT
+```
+
+### Setting EE_hands to use either hands as master
+If you define `EE_HANDS` in your `config.h`, you will need to set the
+EEPROM for the left and right halves.
+
+The EEPROM is used to store whether the
+half is left handed or right handed. This makes it so that the same firmware
+file will run on both hands instead of having to flash left and right handed
+versions of the firmware to each half. To flash the EEPROM file for the left
+half run:
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-lefthand.eep
+// or the equivalent in dfu-programmer
+
+```
+and similarly for right half
+```
+avrdude -p atmega32u4 -P $(COM_PORT) -c avr109 -U eeprom:w:eeprom-righhand.eep
+// or the equivalent in dfu-programmer
+```
+
+NOTE: replace `$(COM_PORT)` with the port of your device (e.g. `/dev/ttyACM0`)
+
+After you have flashed the EEPROM, you then need to set `EE_HANDS` in your config.h, rebuild the hex files and reflash.
+
+Note that you need to program both halves, but you have the option of using
+different keymaps for each half. You could program the left half with a QWERTY
+layout and the right half with a Colemak layout using bootmagic's default layout option.
+Then if you connect the left half to a computer by USB the keyboard will use QWERTY and Colemak when the
+right half is connected.
+
+
+Notes on Using Pro Micro 3.3V
+-----------------------------
+
+Do update the `F_CPU` parameter in `rules.mk` to `8000000` which reflects
+the frequency on the 3.3V board.
+
+Also, if the slave board is producing weird characters in certain columns,
+update the following line in `matrix.c` to the following:
+
+```
+// _delay_us(30); // without this wait read unstable value.
+_delay_us(300); // without this wait read unstable value.
+```
diff --git a/keyboards/lets_split/rev1/Makefile b/keyboards/lets_split/rev1/Makefile
new file mode 100644
index 000000000..4e2a6f00f
--- /dev/null
+++ b/keyboards/lets_split/rev1/Makefile
@@ -0,0 +1,3 @@
+ifndef MAKEFILE_INCLUDED
+ include ../../Makefile
+endif \ No newline at end of file
diff --git a/keyboards/lets_split/rev1/config.h b/keyboards/lets_split/rev1/config.h
new file mode 100644
index 000000000..800d9a7e7
--- /dev/null
+++ b/keyboards/lets_split/rev1/config.h
@@ -0,0 +1,89 @@
+/*
+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 REV1_CONFIG_H
+#define REV1_CONFIG_H
+
+#include "../config.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x3060
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Wootpatoot
+#define PRODUCT Lets Split v1
+#define DESCRIPTION A split keyboard for the cheap makers
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+// wiring of each half
+#define MATRIX_ROW_PINS { B5, B4, E6, D7 }
+#define MATRIX_COL_PINS { F4, F5, F6, F7, B1, B3 }
+// #define MATRIX_COL_PINS { B3, B1, F7, F6, F5, F4 } //uncomment this line and comment line above if you need to reverse left-to-right key order
+
+
+#define CATERINA_BOOTLOADER
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* ws2812 RGB LED */
+#define RGB_DI_PIN D3
+#define RGBLIGHT_TIMER
+#define RGBLED_NUM 16 // Number of LEDs
+#define ws2812_PORTREG PORTD
+#define ws2812_DDRREG DDRD
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+#endif
diff --git a/keyboards/lets_split/rev1/rev1.c b/keyboards/lets_split/rev1/rev1.c
new file mode 100644
index 000000000..c505d3a6e
--- /dev/null
+++ b/keyboards/lets_split/rev1/rev1.c
@@ -0,0 +1,32 @@
+#include "lets_split.h"
+
+#ifdef AUDIO_ENABLE
+ float tone_startup[][2] = SONG(STARTUP_SOUND);
+ float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
+#endif
+
+void matrix_init_kb(void) {
+
+ #ifdef AUDIO_ENABLE
+ _delay_ms(20); // gets rid of tick
+ PLAY_NOTE_ARRAY(tone_startup, false, 0);
+ #endif
+
+ // // green led on
+ // DDRD |= (1<<5);
+ // PORTD &= ~(1<<5);
+
+ // // orange led on
+ // DDRB |= (1<<0);
+ // PORTB &= ~(1<<0);
+
+ matrix_init_user();
+};
+
+void shutdown_user(void) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+ _delay_ms(150);
+ stop_all_notes();
+ #endif
+}
diff --git a/keyboards/lets_split/rev1/rev1.h b/keyboards/lets_split/rev1/rev1.h
new file mode 100644
index 000000000..6bf9f0f03
--- /dev/null
+++ b/keyboards/lets_split/rev1/rev1.h
@@ -0,0 +1,28 @@
+#ifndef REV1_H
+#define REV1_H
+
+#include "../lets_split.h"
+
+//void promicro_bootloader_jmp(bool program);
+#include "quantum.h"
+
+//void promicro_bootloader_jmp(bool program);
+
+#define KEYMAP( \
+ 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 } \
+ }
+
+#endif \ No newline at end of file
diff --git a/keyboards/lets_split/rev1/rules.mk b/keyboards/lets_split/rev1/rules.mk
new file mode 100644
index 000000000..a0825b4ef
--- /dev/null
+++ b/keyboards/lets_split/rev1/rules.mk
@@ -0,0 +1,5 @@
+BACKLIGHT_ENABLE = no
+
+ifndef QUANTUM_DIR
+ include ../../../Makefile
+endif \ No newline at end of file
diff --git a/keyboards/lets_split/rev2/Makefile b/keyboards/lets_split/rev2/Makefile
new file mode 100644
index 000000000..4e2a6f00f
--- /dev/null
+++ b/keyboards/lets_split/rev2/Makefile
@@ -0,0 +1,3 @@
+ifndef MAKEFILE_INCLUDED
+ include ../../Makefile
+endif \ No newline at end of file
diff --git a/keyboards/lets_split/rev2/config.h b/keyboards/lets_split/rev2/config.h
new file mode 100644
index 000000000..d0619c248
--- /dev/null
+++ b/keyboards/lets_split/rev2/config.h
@@ -0,0 +1,89 @@
+/*
+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 REV2_CONFIG_H
+#define REV2_CONFIG_H
+
+#include "../config.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID 0xFEED
+#define PRODUCT_ID 0x3060
+#define DEVICE_VER 0x0001
+#define MANUFACTURER Wootpatoot
+#define PRODUCT Lets Split v2
+#define DESCRIPTION A split keyboard for the cheap makers
+
+/* key matrix size */
+// Rows are doubled-up
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 6
+
+// wiring of each half
+#define MATRIX_ROW_PINS { D7, E6, B4, B5 }
+#define MATRIX_COL_PINS { F6, F7, B1, B3, B2, B6 }
+// #define MATRIX_COL_PINS { B6, B2, B3, B1, F7, F6 } //uncomment this line and comment line above if you need to reverse left-to-right key order
+
+#define CATERINA_BOOTLOADER
+
+/* define if matrix has ghost */
+//#define MATRIX_HAS_GHOST
+
+/* number of backlight levels */
+// #define BACKLIGHT_LEVELS 3
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCING_DELAY 5
+
+/* Mechanical locking support. Use KC_LCAP, KC_LNUM or KC_LSCR instead in keymap */
+#define LOCKING_SUPPORT_ENABLE
+/* Locking resynchronize hack */
+#define LOCKING_RESYNC_ENABLE
+
+/* key combination for command */
+#define IS_COMMAND() ( \
+ keyboard_report->mods == (MOD_BIT(KC_LSHIFT) | MOD_BIT(KC_RSHIFT)) \
+)
+
+/* 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
+
+/*
+ * Feature disable options
+ * These options are also useful to firmware size reduction.
+ */
+
+/* disable debug print */
+// #define NO_DEBUG
+
+/* disable print */
+// #define NO_PRINT
+
+/* disable action features */
+//#define NO_ACTION_LAYER
+//#define NO_ACTION_TAPPING
+//#define NO_ACTION_ONESHOT
+//#define NO_ACTION_MACRO
+//#define NO_ACTION_FUNCTION
+
+
+#endif
diff --git a/keyboards/lets_split/rev2/rev2.c b/keyboards/lets_split/rev2/rev2.c
new file mode 100644
index 000000000..20a4c6be1
--- /dev/null
+++ b/keyboards/lets_split/rev2/rev2.c
@@ -0,0 +1,39 @@
+#include "lets_split.h"
+
+#ifdef AUDIO_ENABLE
+ float tone_startup[][2] = SONG(STARTUP_SOUND);
+ float tone_goodbye[][2] = SONG(GOODBYE_SOUND);
+#endif
+
+#ifdef SSD1306OLED
+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);
+}
+#endif
+
+void matrix_init_kb(void) {
+
+ #ifdef AUDIO_ENABLE
+ _delay_ms(20); // gets rid of tick
+ PLAY_NOTE_ARRAY(tone_startup, false, 0);
+ #endif
+
+ // // green led on
+ // DDRD |= (1<<5);
+ // PORTD &= ~(1<<5);
+
+ // // orange led on
+ // DDRB |= (1<<0);
+ // PORTB &= ~(1<<0);
+
+ matrix_init_user();
+};
+
+void shutdown_user(void) {
+ #ifdef AUDIO_ENABLE
+ PLAY_NOTE_ARRAY(tone_goodbye, false, 0);
+ _delay_ms(150);
+ stop_all_notes();
+ #endif
+}
diff --git a/keyboards/lets_split/rev2/rev2.h b/keyboards/lets_split/rev2/rev2.h
new file mode 100644
index 000000000..0c4e8e7de
--- /dev/null
+++ b/keyboards/lets_split/rev2/rev2.h
@@ -0,0 +1,60 @@
+#ifndef REV2_H
+#define REV2_H
+
+#include "../lets_split.h"
+
+//void promicro_bootloader_jmp(bool program);
+#include "quantum.h"
+
+
+#ifdef USE_I2C
+#include <stddef.h>
+#ifdef __AVR__
+ #include <avr/io.h>
+ #include <avr/interrupt.h>
+#endif
+#endif
+
+//void promicro_bootloader_jmp(bool program);
+
+#ifndef FLIP_HALF
+// Standard Keymap
+// (TRRS jack on the left half is to the right, TRRS jack on the right half is to the left)
+#define KEYMAP( \
+ 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 }, \
+ { R05, R04, R03, R02, R01, R00 }, \
+ { R15, R14, R13, R12, R11, R10 }, \
+ { R25, R24, R23, R22, R21, R20 }, \
+ { R35, R34, R33, R32, R31, R30 } \
+ }
+#else
+// Keymap with right side flipped
+// (TRRS jack on both halves are to the right)
+#define KEYMAP( \
+ 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 } \
+ }
+#endif
+
+#endif
diff --git a/keyboards/lets_split/rev2/rules.mk b/keyboards/lets_split/rev2/rules.mk
new file mode 100644
index 000000000..80a942d06
--- /dev/null
+++ b/keyboards/lets_split/rev2/rules.mk
@@ -0,0 +1,5 @@
+BACKLIGHT_ENABLE = no
+
+ifndef QUANTUM_DIR
+ include ../../../Makefile
+endif
diff --git a/keyboards/lets_split/rules.mk b/keyboards/lets_split/rules.mk
new file mode 100644
index 000000000..cc87ee31c
--- /dev/null
+++ b/keyboards/lets_split/rules.mk
@@ -0,0 +1,88 @@
+SRC += matrix.c \
+ i2c.c \
+ split_util.c \
+ serial.c \
+ ssd1306.c
+
+# MCU name
+#MCU = at90usb1287
+MCU = atmega32u4
+
+# Processor frequency.
+# This will define a symbol, F_CPU, in all source code files equal to the
+# processor frequency in Hz. You can then use this symbol in your source code to
+# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
+# automatically to create a 32-bit value in your source code.
+#
+# This will be an integer division of F_USB below, as it is sourced by
+# F_USB after it has run through any CPU prescalers. Note that this value
+# does not *change* the processor frequency - it should merely be updated to
+# reflect the processor speed set externally so that the code can use accurate
+# software delays.
+F_CPU = 16000000
+
+#
+# LUFA specific
+#
+# Target architecture (see library "Board Types" documentation).
+ARCH = AVR8
+
+# Input clock frequency.
+# This will define a symbol, F_USB, in all source code files equal to the
+# input clock frequency (before any prescaling is performed) in Hz. This value may
+# differ from F_CPU if prescaling is used on the latter, and is required as the
+# raw input clock is fed directly to the PLL sections of the AVR for high speed
+# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
+# at the end, this will be done automatically to create a 32-bit value in your
+# source code.
+#
+# If no clock division is performed on the input clock inside the AVR (via the
+# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
+F_USB = $(F_CPU)
+
+# Interrupt driven control endpoint task(+60)
+OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT
+
+
+# Boot Section Size in *bytes*
+# Teensy halfKay 512
+# Teensy++ halfKay 1024
+# Atmel DFU loader 4096
+# LUFA bootloader 4096
+# USBaspLoader 2048
+OPT_DEFS += -DBOOTLOADER_SIZE=4096
+
+# Build Options
+# 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 = yes # Mouse keys(+4700)
+EXTRAKEY_ENABLE = yes # Audio control and System control(+450)
+CONSOLE_ENABLE = no # Console for debug(+400)
+COMMAND_ENABLE = yes # Commands for debug and configuration
+NKRO_ENABLE = 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.
+SUBPROJECT_rev1 = yes
+USE_I2C = 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
+
+CUSTOM_MATRIX = yes
+
+avrdude: build
+ ls /dev/tty* > /tmp/1; \
+ echo "Reset your Pro Micro now"; \
+ while [ -z $$USB ]; do \
+ sleep 1; \
+ ls /dev/tty* > /tmp/2; \
+ USB=`diff /tmp/1 /tmp/2 | grep -o '/dev/tty.*'`; \
+ done; \
+ avrdude -p $(MCU) -c avr109 -P $$USB -U flash:w:$(BUILD_DIR)/$(TARGET).hex
+
+.PHONY: avrdude
diff --git a/keyboards/lets_split/serial.c b/keyboards/lets_split/serial.c
new file mode 100644
index 000000000..6faed09ce
--- /dev/null
+++ b/keyboards/lets_split/serial.c
@@ -0,0 +1,228 @@
+/*
+ * WARNING: be careful changing this code, it is very timing dependent
+ */
+
+#ifndef F_CPU
+#define F_CPU 16000000
+#endif
+
+#include <avr/io.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <stdbool.h>
+#include "serial.h"
+
+#ifdef USE_SERIAL
+
+// Serial pulse period in microseconds. Its probably a bad idea to lower this
+// value.
+#define SERIAL_DELAY 24
+
+uint8_t volatile serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH] = {0};
+uint8_t volatile serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH] = {0};
+
+#define SLAVE_DATA_CORRUPT (1<<0)
+volatile uint8_t status = 0;
+
+inline static
+void serial_delay(void) {
+ _delay_us(SERIAL_DELAY);
+}
+
+inline static
+void serial_output(void) {
+ SERIAL_PIN_DDR |= SERIAL_PIN_MASK;
+}
+
+// make the serial pin an input with pull-up resistor
+inline static
+void serial_input(void) {
+ SERIAL_PIN_DDR &= ~SERIAL_PIN_MASK;
+ SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+inline static
+uint8_t serial_read_pin(void) {
+ return !!(SERIAL_PIN_INPUT & SERIAL_PIN_MASK);
+}
+
+inline static
+void serial_low(void) {
+ SERIAL_PIN_PORT &= ~SERIAL_PIN_MASK;
+}
+
+inline static
+void serial_high(void) {
+ SERIAL_PIN_PORT |= SERIAL_PIN_MASK;
+}
+
+void serial_master_init(void) {
+ serial_output();
+ serial_high();
+}
+
+void serial_slave_init(void) {
+ serial_input();
+
+ // Enable INT0
+ EIMSK |= _BV(INT0);
+ // Trigger on falling edge of INT0
+ EICRA &= ~(_BV(ISC00) | _BV(ISC01));
+}
+
+// Used by the master to synchronize timing with the slave.
+static
+void sync_recv(void) {
+ serial_input();
+ // This shouldn't hang if the slave disconnects because the
+ // serial line will float to high if the slave does disconnect.
+ while (!serial_read_pin());
+ serial_delay();
+}
+
+// Used by the slave to send a synchronization signal to the master.
+static
+void sync_send(void) {
+ serial_output();
+
+ serial_low();
+ serial_delay();
+
+ serial_high();
+}
+
+// Reads a byte from the serial line
+static
+uint8_t serial_read_byte(void) {
+ uint8_t byte = 0;
+ serial_input();
+ for ( uint8_t i = 0; i < 8; ++i) {
+ byte = (byte << 1) | serial_read_pin();
+ serial_delay();
+ _delay_us(1);
+ }
+
+ return byte;
+}
+
+// Sends a byte with MSB ordering
+static
+void serial_write_byte(uint8_t data) {
+ uint8_t b = 8;
+ serial_output();
+ while( b-- ) {
+ if(data & (1 << b)) {
+ serial_high();
+ } else {
+ serial_low();
+ }
+ serial_delay();
+ }
+}
+
+// interrupt handle to be used by the slave device
+ISR(SERIAL_PIN_INTERRUPT) {
+ sync_send();
+
+ uint8_t checksum = 0;
+ for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+ serial_write_byte(serial_slave_buffer[i]);
+ sync_send();
+ checksum += serial_slave_buffer[i];
+ }
+ serial_write_byte(checksum);
+ sync_send();
+
+ // wait for the sync to finish sending
+ serial_delay();
+
+ // read the middle of pulses
+ _delay_us(SERIAL_DELAY/2);
+
+ uint8_t checksum_computed = 0;
+ for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+ serial_master_buffer[i] = serial_read_byte();
+ sync_send();
+ checksum_computed += serial_master_buffer[i];
+ }
+ uint8_t checksum_received = serial_read_byte();
+ sync_send();
+
+ serial_input(); // end transaction
+
+ if ( checksum_computed != checksum_received ) {
+ status |= SLAVE_DATA_CORRUPT;
+ } else {
+ status &= ~SLAVE_DATA_CORRUPT;
+ }
+}
+
+inline
+bool serial_slave_DATA_CORRUPT(void) {
+ return status & SLAVE_DATA_CORRUPT;
+}
+
+// Copies the serial_slave_buffer to the master and sends the
+// serial_master_buffer to the slave.
+//
+// Returns:
+// 0 => no error
+// 1 => slave did not respond
+int serial_update_buffers(void) {
+ // this code is very time dependent, so we need to disable interrupts
+ cli();
+
+ // signal to the slave that we want to start a transaction
+ serial_output();
+ serial_low();
+ _delay_us(1);
+
+ // wait for the slaves response
+ serial_input();
+ serial_high();
+ _delay_us(SERIAL_DELAY);
+
+ // check if the slave is present
+ if (serial_read_pin()) {
+ // slave failed to pull the line low, assume not present
+ sei();
+ return 1;
+ }
+
+ // if the slave is present syncronize with it
+ sync_recv();
+
+ uint8_t checksum_computed = 0;
+ // receive data from the slave
+ for (int i = 0; i < SERIAL_SLAVE_BUFFER_LENGTH; ++i) {
+ serial_slave_buffer[i] = serial_read_byte();
+ sync_recv();
+ checksum_computed += serial_slave_buffer[i];
+ }
+ uint8_t checksum_received = serial_read_byte();
+ sync_recv();
+
+ if (checksum_computed != checksum_received) {
+ sei();
+ return 1;
+ }
+
+ uint8_t checksum = 0;
+ // send data to the slave
+ for (int i = 0; i < SERIAL_MASTER_BUFFER_LENGTH; ++i) {
+ serial_write_byte(serial_master_buffer[i]);
+ sync_recv();
+ checksum += serial_master_buffer[i];
+ }
+ serial_write_byte(checksum);
+ sync_recv();
+
+ // always, release the line when not in use
+ serial_output();
+ serial_high();
+
+ sei();
+ return 0;
+}
+
+#endif
diff --git a/keyboards/lets_split/serial.h b/keyboards/lets_split/serial.h
new file mode 100644
index 000000000..15fe4db7b
--- /dev/null
+++ b/keyboards/lets_split/serial.h
@@ -0,0 +1,26 @@
+#ifndef MY_SERIAL_H
+#define MY_SERIAL_H
+
+#include "config.h"
+#include <stdbool.h>
+
+/* TODO: some defines for interrupt setup */
+#define SERIAL_PIN_DDR DDRD
+#define SERIAL_PIN_PORT PORTD
+#define SERIAL_PIN_INPUT PIND
+#define SERIAL_PIN_MASK _BV(PD0)
+#define SERIAL_PIN_INTERRUPT INT0_vect
+
+#define SERIAL_SLAVE_BUFFER_LENGTH MATRIX_ROWS/2
+#define SERIAL_MASTER_BUFFER_LENGTH 1
+
+// Buffers for master - slave communication
+extern volatile uint8_t serial_slave_buffer[SERIAL_SLAVE_BUFFER_LENGTH];
+extern volatile uint8_t serial_master_buffer[SERIAL_MASTER_BUFFER_LENGTH];
+
+void serial_master_init(void);
+void serial_slave_init(void);
+int serial_update_buffers(void);
+bool serial_slave_data_corrupt(void);
+
+#endif
diff --git a/keyboards/lets_split/split_util.c b/keyboards/lets_split/split_util.c
new file mode 100644
index 000000000..39639c3b4
--- /dev/null
+++ b/keyboards/lets_split/split_util.c
@@ -0,0 +1,84 @@
+#include <avr/io.h>
+#include <avr/wdt.h>
+#include <avr/power.h>
+#include <avr/interrupt.h>
+#include <util/delay.h>
+#include <avr/eeprom.h>
+#include "split_util.h"
+#include "matrix.h"
+#include "keyboard.h"
+#include "config.h"
+
+#ifdef USE_I2C
+# include "i2c.h"
+#else
+# include "serial.h"
+#endif
+
+volatile bool isLeftHand = true;
+
+static void setup_handedness(void) {
+ #ifdef EE_HANDS
+ isLeftHand = eeprom_read_byte(EECONFIG_HANDEDNESS);
+ #else
+ // I2C_MASTER_RIGHT is deprecated, use MASTER_RIGHT instead, since this works for both serial and i2c
+ #if defined(I2C_MASTER_RIGHT) || defined(MASTER_RIGHT)
+ isLeftHand = !has_usb();
+ #else
+ isLeftHand = has_usb();
+ #endif
+ #endif
+}
+
+static void keyboard_master_setup(void) {
+#ifdef USE_I2C
+ i2c_master_init();
+#ifdef SSD1306OLED
+ matrix_master_OLED_init ();
+#endif
+#else
+ serial_master_init();
+#endif
+}
+
+static void keyboard_slave_setup(void) {
+#ifdef USE_I2C
+ i2c_slave_init(SLAVE_I2C_ADDRESS);
+#else
+ serial_slave_init();
+#endif
+}
+
+bool has_usb(void) {
+ USBCON |= (1 << OTGPADE); //enables VBUS pad
+ _delay_us(5);
+ return (USBSTA & (1<<VBUS)); //checks state of VBUS
+}
+
+void split_keyboard_setup(void) {
+ setup_handedness();
+
+ if (has_usb()) {
+ keyboard_master_setup();
+ } else {
+ keyboard_slave_setup();
+ }
+ sei();
+}
+
+void keyboard_slave_loop(void) {
+ matrix_init();
+
+ while (1) {
+ matrix_slave_scan();
+ }
+}
+
+// this code runs before the usb and keyboard is initialized
+void matrix_setup(void) {
+ split_keyboard_setup();
+
+ if (!has_usb()) {
+ keyboard_slave_loop();
+ }
+}
diff --git a/keyboards/lets_split/split_util.h b/keyboards/lets_split/split_util.h
new file mode 100644
index 000000000..3ae76c209
--- /dev/null
+++ b/keyboards/lets_split/split_util.h
@@ -0,0 +1,24 @@
+#ifndef SPLIT_KEYBOARD_UTIL_H
+#define SPLIT_KEYBOARD_UTIL_H
+
+#include <stdbool.h>
+
+#ifdef EE_HANDS
+ #define EECONFIG_BOOTMAGIC_END (uint8_t *)10
+ #define EECONFIG_HANDEDNESS EECONFIG_BOOTMAGIC_END
+#endif
+
+#define SLAVE_I2C_ADDRESS 0x32
+
+extern volatile bool isLeftHand;
+
+// slave version of matix scan, defined in matrix.c
+void matrix_slave_scan(void);
+
+void split_keyboard_setup(void);
+bool has_usb(void);
+void keyboard_slave_loop(void);
+
+void matrix_master_OLED_init (void);
+
+#endif
diff --git a/keyboards/lets_split/ssd1306.c b/keyboards/lets_split/ssd1306.c
new file mode 100644
index 000000000..5c6dff27f
--- /dev/null
+++ b/keyboards/lets_split/ssd1306.c
@@ -0,0 +1,470 @@
+#ifdef SSD1306OLED
+
+#include "ssd1306.h"
+#include "config.h"
+#include "i2c.h"
+#include <string.h>
+#include "print.h"
+#include "lets_split.h"
+#include "common/glcdfont.c"
+#ifdef ADAFRUIT_BLE_ENABLE
+#include "adafruit_ble.h"
+#endif
+#ifdef PROTOCOL_LUFA
+#include "lufa.h"
+#endif
+#include "sendchar.h"
+#include "pincontrol.h"
+
+//assign the right code to your layers
+#define _BASE 0
+#define _LOWER 8
+#define _RAISE 16
+#define _FNLAYER 64
+#define _NUMLAY 128
+#define _NLOWER 136
+#define _NFNLAYER 192
+#define _MOUSECURSOR 256
+#define _ADJUST 65560
+
+// Set this to 1 to help diagnose early startup problems
+// when testing power-on with ble. Turn it off otherwise,
+// as the latency of printing most of the debug info messes
+// with the matrix scan, causing keys to drop.
+#define DEBUG_TO_SCREEN 0
+
+// Controls the SSD1306 128x32 OLED display via i2c
+
+#define i2cAddress 0x3C
+
+#define DisplayHeight 32
+#define DisplayWidth 128
+
+#define FontHeight 8
+#define FontWidth 6
+
+#define MatrixRows (DisplayHeight / FontHeight)
+#define MatrixCols (DisplayWidth / FontWidth)
+
+struct CharacterMatrix {
+ uint8_t display[MatrixRows][MatrixCols];
+ uint8_t *cursor;
+ bool dirty;
+};
+
+static struct CharacterMatrix display;
+//static uint16_t last_battery_update;
+//static uint32_t vbat;
+//#define BatteryUpdateInterval 10000 /* milliseconds */
+#define ScreenOffInterval 300000 /* milliseconds */
+#if DEBUG_TO_SCREEN
+static uint8_t displaying;
+#endif
+static uint16_t last_flush;
+
+enum ssd1306_cmds {
+ DisplayOff = 0xAE,
+ DisplayOn = 0xAF,
+
+ SetContrast = 0x81,
+ DisplayAllOnResume = 0xA4,
+
+ DisplayAllOn = 0xA5,
+ NormalDisplay = 0xA6,
+ InvertDisplay = 0xA7,
+ SetDisplayOffset = 0xD3,
+ SetComPins = 0xda,
+ SetVComDetect = 0xdb,
+ SetDisplayClockDiv = 0xD5,
+ SetPreCharge = 0xd9,
+ SetMultiPlex = 0xa8,
+ SetLowColumn = 0x00,
+ SetHighColumn = 0x10,
+ SetStartLine = 0x40,
+
+ SetMemoryMode = 0x20,
+ ColumnAddr = 0x21,
+ PageAddr = 0x22,
+
+ ComScanInc = 0xc0,
+ ComScanDec = 0xc8,
+ SegRemap = 0xa0,
+ SetChargePump = 0x8d,
+ ExternalVcc = 0x01,
+ SwitchCapVcc = 0x02,
+
+ ActivateScroll = 0x2f,
+ DeActivateScroll = 0x2e,
+ SetVerticalScrollArea = 0xa3,
+ RightHorizontalScroll = 0x26,
+ LeftHorizontalScroll = 0x27,
+ VerticalAndRightHorizontalScroll = 0x29,
+ VerticalAndLeftHorizontalScroll = 0x2a,
+};
+
+
+// Write command sequence.
+// Returns true on success.
+static inline bool _send_cmd1(uint8_t cmd) {
+ bool res = false;
+
+ if (i2c_start_write(i2cAddress)) {
+ xprintf("failed to start write to %d\n", i2cAddress);
+ goto done;
+ }
+
+ if (i2c_master_write(0x0 /* command byte follows */)) {
+ print("failed to write control byte\n");
+
+ goto done;
+ }
+
+ if (i2c_master_write(cmd)) {
+ xprintf("failed to write command %d\n", cmd);
+ goto done;
+ }
+ res = true;
+done:
+ i2c_master_stop();
+ return res;
+}
+
+// Write 2-byte command sequence.
+// Returns true on success
+static inline bool _send_cmd2(uint8_t cmd, uint8_t opr) {
+ if (!_send_cmd1(cmd)) {
+ return false;
+ }
+ return _send_cmd1(opr);
+}
+
+// Write 3-byte command sequence.
+// Returns true on success
+static inline bool _send_cmd3(uint8_t cmd, uint8_t opr1, uint8_t opr2) {
+ if (!_send_cmd1(cmd)) {
+ return false;
+ }
+ if (!_send_cmd1(opr1)) {
+ return false;
+ }
+ return _send_cmd1(opr2);
+}
+
+#define send_cmd1(c) if (!_send_cmd1(c)) {goto done;}
+#define send_cmd2(c,o) if (!_send_cmd2(c,o)) {goto done;}
+#define send_cmd3(c,o1,o2) if (!_send_cmd3(c,o1,o2)) {goto done;}
+
+static void matrix_clear(struct CharacterMatrix *matrix);
+
+static void clear_display(void) {
+ matrix_clear(&display);
+
+ // Clear all of the display bits (there can be random noise
+ // in the RAM on startup)
+ send_cmd3(PageAddr, 0, (DisplayHeight / 8) - 1);
+ send_cmd3(ColumnAddr, 0, DisplayWidth - 1);
+
+ if (i2c_start_write(i2cAddress)) {
+ goto done;
+ }
+ if (i2c_master_write(0x40)) {
+ // Data mode
+ goto done;
+ }
+ for (uint8_t row = 0; row < MatrixRows; ++row) {
+ for (uint8_t col = 0; col < DisplayWidth; ++col) {
+ i2c_master_write(0);
+ }
+ }
+
+ display.dirty = false;
+
+done:
+ i2c_master_stop();
+}
+
+#if DEBUG_TO_SCREEN
+#undef sendchar
+static int8_t capture_sendchar(uint8_t c) {
+ sendchar(c);
+ iota_gfx_write_char(c);
+
+ if (!displaying) {
+ iota_gfx_flush();
+ }
+ return 0;
+}
+#endif
+
+bool iota_gfx_init(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOff);
+ send_cmd2(SetDisplayClockDiv, 0x80);
+ send_cmd2(SetMultiPlex, DisplayHeight - 1);
+
+ send_cmd2(SetDisplayOffset, 0);
+
+
+ send_cmd1(SetStartLine | 0x0);
+ send_cmd2(SetChargePump, 0x14 /* Enable */);
+ send_cmd2(SetMemoryMode, 0 /* horizontal addressing */);
+
+/// Flips the display orientation 0 degrees
+ send_cmd1(SegRemap | 0x1);
+ send_cmd1(ComScanDec);
+/*
+// the following Flip the display orientation 180 degrees
+ send_cmd1(SegRemap);
+ send_cmd1(ComScanInc);
+// end flip */
+ send_cmd2(SetComPins, 0x2);
+ send_cmd2(SetContrast, 0x8f);
+ send_cmd2(SetPreCharge, 0xf1);
+ send_cmd2(SetVComDetect, 0x40);
+ send_cmd1(DisplayAllOnResume);
+ send_cmd1(NormalDisplay);
+ send_cmd1(DeActivateScroll);
+ send_cmd1(DisplayOn);
+
+ send_cmd2(SetContrast, 0); // Dim
+
+ clear_display();
+
+ success = true;
+
+ iota_gfx_flush();
+
+#if DEBUG_TO_SCREEN
+ print_set_sendchar(capture_sendchar);
+#endif
+
+done:
+ return success;
+}
+
+bool iota_gfx_off(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOff);
+ success = true;
+
+done:
+ return success;
+}
+
+bool iota_gfx_on(void) {
+ bool success = false;
+
+ send_cmd1(DisplayOn);
+ success = true;
+
+done:
+ return success;
+}
+
+static void matrix_write_char_inner(struct CharacterMatrix *matrix, uint8_t c) {
+ *matrix->cursor = c;
+ ++matrix->cursor;
+
+ if (matrix->cursor - &matrix->display[0][0] == sizeof(matrix->display)) {
+ // We went off the end; scroll the display upwards by one line
+ memmove(&matrix->display[0], &matrix->display[1],
+ MatrixCols * (MatrixRows - 1));
+ matrix->cursor = &matrix->display[MatrixRows - 1][0];
+ memset(matrix->cursor, ' ', MatrixCols);
+ }
+}
+
+static void matrix_write_char(struct CharacterMatrix *matrix, uint8_t c) {
+ matrix->dirty = true;
+
+ if (c == '\n') {
+ // Clear to end of line from the cursor and then move to the
+ // start of the next line
+ uint8_t cursor_col = (matrix->cursor - &matrix->display[0][0]) % MatrixCols;
+
+ while (cursor_col++ < MatrixCols) {
+ matrix_write_char_inner(matrix, ' ');
+ }
+ return;
+ }
+
+ matrix_write_char_inner(matrix, c);
+}
+
+void iota_gfx_write_char(uint8_t c) {
+ matrix_write_char(&display, c);
+}
+
+static void matrix_write(struct CharacterMatrix *matrix, const char *data) {
+ const char *end = data + strlen(data);
+ while (data < end) {
+ matrix_write_char(matrix, *data);
+ ++data;
+ }
+}
+
+void iota_gfx_write(const char *data) {
+ matrix_write(&display, data);
+}
+
+static void matrix_write_P(struct CharacterMatrix *matrix, const char *data) {
+ while (true) {
+ uint8_t c = pgm_read_byte(data);
+ if (c == 0) {
+ return;
+ }
+ matrix_write_char(matrix, c);
+ ++data;
+ }
+}
+
+void iota_gfx_write_P(const char *data) {
+ matrix_write_P(&display, data);
+}
+
+static void matrix_clear(struct CharacterMatrix *matrix) {
+ memset(matrix->display, ' ', sizeof(matrix->display));
+ matrix->cursor = &matrix->display[0][0];
+ matrix->dirty = true;
+}
+
+void iota_gfx_clear_screen(void) {
+ matrix_clear(&display);
+}
+
+static void matrix_render(struct CharacterMatrix *matrix) {
+ last_flush = timer_read();
+ iota_gfx_on();
+#if DEBUG_TO_SCREEN
+ ++displaying;
+#endif
+
+ // Move to the home position
+ send_cmd3(PageAddr, 0, MatrixRows - 1);
+ send_cmd3(ColumnAddr, 0, (MatrixCols * FontWidth) - 1);
+
+ if (i2c_start_write(i2cAddress)) {
+ goto done;
+ }
+ if (i2c_master_write(0x40)) {
+ // Data mode
+ goto done;
+ }
+
+ for (uint8_t row = 0; row < MatrixRows; ++row) {
+ for (uint8_t col = 0; col < MatrixCols; ++col) {
+ const uint8_t *glyph = font + (matrix->display[row][col] * (FontWidth - 1));
+
+ for (uint8_t glyphCol = 0; glyphCol < FontWidth - 1; ++glyphCol) {
+ uint8_t colBits = pgm_read_byte(glyph + glyphCol);
+ i2c_master_write(colBits);
+ }
+
+ // 1 column of space between chars (it's not included in the glyph)
+ i2c_master_write(0);
+ }
+ }
+
+ matrix->dirty = false;
+
+done:
+ i2c_master_stop();
+#if DEBUG_TO_SCREEN
+ --displaying;
+#endif
+}
+
+void iota_gfx_flush(void) {
+ matrix_render(&display);
+}
+
+static 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_status_info(void) {
+#if DEBUG_TO_SCREEN
+ if (debug_enable) {
+ return;
+ }
+#endif
+
+ struct CharacterMatrix matrix;
+
+ matrix_clear(&matrix);
+ matrix_write_P(&matrix, PSTR("USB: "));
+#ifdef PROTOCOL_LUFA
+ switch (USB_DeviceState) {
+ case DEVICE_STATE_Unattached:
+ matrix_write_P(&matrix, PSTR("Unattached"));
+ break;
+ case DEVICE_STATE_Suspended:
+ matrix_write_P(&matrix, PSTR("Suspended"));
+ break;
+ case DEVICE_STATE_Configured:
+ matrix_write_P(&matrix, PSTR("Connected"));
+ break;
+ case DEVICE_STATE_Powered:
+ matrix_write_P(&matrix, PSTR("Powered"));
+ break;
+ case DEVICE_STATE_Default:
+ matrix_write_P(&matrix, PSTR("Default"));
+ break;
+ case DEVICE_STATE_Addressed:
+ matrix_write_P(&matrix, PSTR("Addressed"));
+ break;
+ default:
+ matrix_write_P(&matrix, PSTR("Invalid"));
+ }
+#endif
+
+// 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("\n\nLayer: "));
+ switch (layer_state) {
+ case _BASE:
+ matrix_write_P(&matrix, PSTR("Default"));
+ break;
+ case _RAISE:
+ matrix_write_P(&matrix, PSTR("Raise"));
+ break;
+ case _LOWER:
+ matrix_write_P(&matrix, PSTR("Lower"));
+ break;
+ case _ADJUST:
+ 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);
+ matrix_update(&display, &matrix);
+}
+
+void iota_gfx_task(void) {
+ render_status_info();
+
+ if (display.dirty) {
+ iota_gfx_flush();
+ }
+
+ if (timer_elapsed(last_flush) > ScreenOffInterval) {
+ iota_gfx_off();
+ }
+}
+#endif
diff --git a/keyboards/lets_split/ssd1306.h b/keyboards/lets_split/ssd1306.h
new file mode 100644
index 000000000..b0c74f987
--- /dev/null
+++ b/keyboards/lets_split/ssd1306.h
@@ -0,0 +1,17 @@
+#ifndef SSD1306_H
+#define SSD1306_H
+
+#include <stdbool.h>
+#include <stdio.h>
+
+bool iota_gfx_init(void);
+void iota_gfx_task(void);
+bool iota_gfx_off(void);
+bool iota_gfx_on(void);
+void iota_gfx_flush(void);
+void iota_gfx_write_char(uint8_t c);
+void iota_gfx_write(const char *data);
+void iota_gfx_write_P(const char *data);
+void iota_gfx_clear_screen(void);
+
+#endif