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-rw-r--r--keyboards/mt/split75/config.h21
-rw-r--r--keyboards/mt/split75/info.json13
-rw-r--r--keyboards/mt/split75/keymaps/art/keymap.c267
-rw-r--r--keyboards/mt/split75/keymaps/art/rules.mk1
-rw-r--r--keyboards/mt/split75/keymaps/default/keymap.c32
-rw-r--r--keyboards/mt/split75/keymaps/iso/keymap.c48
-rw-r--r--keyboards/mt/split75/matrix.c155
-rw-r--r--keyboards/mt/split75/readme.md28
-rw-r--r--keyboards/mt/split75/rules.mk22
-rw-r--r--keyboards/mt/split75/split75.c1
-rw-r--r--keyboards/mt/split75/split75.h47
11 files changed, 635 insertions, 0 deletions
diff --git a/keyboards/mt/split75/config.h b/keyboards/mt/split75/config.h
new file mode 100644
index 0000000000..63c9492c31
--- /dev/null
+++ b/keyboards/mt/split75/config.h
@@ -0,0 +1,21 @@
+#pragma once
+
+#define VENDOR_ID 0x594D
+#define PRODUCT_ID 0x0001
+#define DEVICE_VER 0x0001
+#define MANUFACTURER YMDK
+#define PRODUCT Split75
+
+/* matrix size */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 14
+
+#define LED_NUM_LOCK_PIN D0
+#define LED_CAPS_LOCK_PIN D1
+#define LED_SCROLL_LOCK_PIN D6
+
+#define RGBLED_NUM 8
+#define RGBLIGHT_ANIMATIONS
+#define RGBLIGHT_SLEEP
+
+#define BACKLIGHT_PIN D4
diff --git a/keyboards/mt/split75/info.json b/keyboards/mt/split75/info.json
new file mode 100644
index 0000000000..1d0609a378
--- /dev/null
+++ b/keyboards/mt/split75/info.json
@@ -0,0 +1,13 @@
+{
+ "keyboard_name": "split75",
+ "url": "",
+ "maintainer": "Michael L. Walker",
+ "layouts": {
+ "LAYOUT": {
+ "layout": [{"label":"ESC", "x":2.25, "y":0}, {"label":"F1", "x":3.25, "y":0}, {"label":"F2", "x":4.25, "y":0}, {"label":"F3", "x":5.25, "y":0}, {"label":"F4", "x":6.25, "y":0}, {"label":"F5", "x":7.25, "y":0}, {"label":"F6", "x":8.25, "y":0}, {"label":"F7", "x":10.25, "y":0}, {"label":"F8", "x":11.25, "y":0}, {"label":"F9", "x":12.25, "y":0}, {"label":"F10", "x":13.25, "y":0}, {"label":"F11", "x":14.25, "y":0}, {"label":"F12", "x":15.25, "y":0}, {"label":"Prt", "x":16.25, "y":0}, {"label":"Ins", "x":17.25, "y":0}, {"label":"Del", "x":18.25, "y":0}, {"label":"8", "x":0, "y":1}, {"label":"9", "x":1, "y":1}, {"label":"~", "x":2.25, "y":1}, {"label":"!", "x":3.25, "y":1}, {"label":"@", "x":4.25, "y":1}, {"label":"#", "x":5.25, "y":1}, {"label":"$", "x":6.25, "y":1}, {"label":"%", "x":7.25, "y":1}, {"label":"^", "x":8.25, "y":1}, {"label":"&", "x":10.25, "y":1}, {"label":"*", "x":11.25, "y":1}, {"label":"(", "x":12.25, "y":1}, {"label":")", "x":13.25, "y":1}, {"label":"_", "x":14.25, "y":1}, {"label":"+", "x":15.25, "y":1}, {"label":"Backspace", "x":16.25, "y":1, "w":2}, {"label":"Home", "x":18.25, "y":1}, {"label":"6", "x":0, "y":2}, {"label":"7", "x":1, "y":2}, {"label":"Tab", "x":2.25, "y":2, "w":1.5}, {"label":"Q", "x":3.75, "y":2}, {"label":"W", "x":4.75, "y":2}, {"label":"E", "x":5.75, "y":2}, {"label":"R", "x":6.75, "y":2}, {"label":"T", "x":7.75, "y":2}, {"label":"Y", "x":9.75, "y":2}, {"label":"U", "x":10.75, "y":2}, {"label":"I", "x":11.75, "y":2}, {"label":"O", "x":12.75, "y":2}, {"label":"P", "x":13.75, "y":2}, {"label":"{", "x":14.75, "y":2}, {"label":"}", "x":15.75, "y":2}, {"label":"|", "x":16.75, "y":2, "w":1.5}, {"label":"PgUp", "x":18.25, "y":2}, {"label":"4", "x":0, "y":3}, {"label":"5", "x":1, "y":3}, {"label":"Caps Lock", "x":2.25, "y":3, "w":1.75}, {"label":"A", "x":4, "y":3}, {"label":"S", "x":5, "y":3}, {"label":"D", "x":6, "y":3}, {"label":"F", "x":7, "y":3}, {"label":"G", "x":8, "y":3}, {"label":"H", "x":10, "y":3}, {"label":"J", "x":11, "y":3}, {"label":"K", "x":12, "y":3}, {"label":"L", "x":13, "y":3}, {"label":":", "x":14, "y":3}, {"label":"\"", "x":15, "y":3}, {"label":"Enter", "x":16, "y":3, "w":2.25}, {"label":"PgDn", "x":18.25, "y":3}, {"label":"2", "x":0, "y":4}, {"label":"3", "x":1, "y":4}, {"label":"Shift", "x":2.25, "y":4, "w":2.25}, {"label":"Z", "x":4.5, "y":4}, {"label":"X", "x":5.5, "y":4}, {"label":"C", "x":6.5, "y":4}, {"label":"V", "x":7.5, "y":4}, {"label":"B", "x":8.5, "y":4}, {"label":"N", "x":10.5, "y":4}, {"label":"M", "x":11.5, "y":4}, {"label":"<", "x":12.5, "y":4}, {"label":">", "x":13.5, "y":4}, {"label":"?", "x":14.5, "y":4}, {"label":"Shift", "x":15.5, "y":4, "w":1.75}, {"label":"\u2191", "x":17.25, "y":4}, {"label":"End", "x":18.25, "y":4}, {"label":"0", "x":0, "y":5}, {"label":"1", "x":1, "y":5}, {"label":"Ctrl", "x":2.25, "y":5, "w":1.25}, {"label":"Win", "x":3.5, "y":5, "w":1.25}, {"label":"Alt", "x":4.75, "y":5, "w":1.25}, {"x":6, "y":5, "w":2}, {"x":8, "y":5}, {"x":10, "y":5, "w":2.75}, {"label":"Alt", "x":12.75, "y":5, "w":1.25}, {"label":"Fn", "x":14, "y":5}, {"label":"Ctrl", "x":15, "y":5, "w":1.25}, {"label":"\u2190", "x":16.25, "y":5}, {"label":"\u2193", "x":17.25, "y":5}, {"label":"\u2192", "x":18.25, "y":5}]
+ },
+ "LAYOUT_iso": {
+ "layout": [{"label":"ESC", "x":2.25, "y":0}, {"label":"F1", "x":3.25, "y":0}, {"label":"F2", "x":4.25, "y":0}, {"label":"F3", "x":5.25, "y":0}, {"label":"F4", "x":6.25, "y":0}, {"label":"F5", "x":7.25, "y":0}, {"label":"F6", "x":8.25, "y":0}, {"label":"F7", "x":10.25, "y":0}, {"label":"F8", "x":11.25, "y":0}, {"label":"F9", "x":12.25, "y":0}, {"label":"F10", "x":13.25, "y":0}, {"label":"F11", "x":14.25, "y":0}, {"label":"F12", "x":15.25, "y":0}, {"label":"Prt", "x":16.25, "y":0}, {"label":"Ins", "x":17.25, "y":0}, {"label":"Del", "x":18.25, "y":0}, {"label":"8", "x":0, "y":1}, {"label":"9", "x":1, "y":1}, {"label":"~", "x":2.25, "y":1}, {"label":"!", "x":3.25, "y":1}, {"label":"@", "x":4.25, "y":1}, {"label":"#", "x":5.25, "y":1}, {"label":"$", "x":6.25, "y":1}, {"label":"%", "x":7.25, "y":1}, {"label":"^", "x":8.25, "y":1}, {"label":"&", "x":10.25, "y":1}, {"label":"*", "x":11.25, "y":1}, {"label":"(", "x":12.25, "y":1}, {"label":")", "x":13.25, "y":1}, {"label":"_", "x":14.25, "y":1}, {"label":"+", "x":15.25, "y":1}, {"label":"Backspace", "x":16.25, "y":1, "w":2}, {"label":"Home", "x":18.25, "y":1}, {"label":"6", "x":0, "y":2}, {"label":"7", "x":1, "y":2}, {"label":"Tab", "x":2.25, "y":2, "w":1.5}, {"label":"Q", "x":3.75, "y":2}, {"label":"W", "x":4.75, "y":2}, {"label":"E", "x":5.75, "y":2}, {"label":"R", "x":6.75, "y":2}, {"label":"T", "x":7.75, "y":2}, {"label":"Y", "x":9.75, "y":2}, {"label":"U", "x":10.75, "y":2}, {"label":"I", "x":11.75, "y":2}, {"label":"O", "x":12.75, "y":2}, {"label":"P", "x":13.75, "y":2}, {"label":"{", "x":14.75, "y":2}, {"label":"}", "x":15.75, "y":2}, {"label":"PgUp", "x":18.25, "y":2}, {"label":"4", "x":0, "y":3}, {"label":"5", "x":1, "y":3}, {"label":"Caps Lock", "x":2.25, "y":3, "w":1.75}, {"label":"A", "x":4, "y":3}, {"label":"S", "x":5, "y":3}, {"label":"D", "x":6, "y":3}, {"label":"F", "x":7, "y":3}, {"label":"G", "x":8, "y":3}, {"label":"H", "x":10, "y":3}, {"label":"J", "x":11, "y":3}, {"label":"K", "x":12, "y":3}, {"label":"L", "x":13, "y":3}, {"label":":", "x":14, "y":3}, {"label":"\"", "x":15, "y":3}, {"label":"'", "x":16, "y":3}, {"label":"Enter", "x":17, "y":2, "w":1.25, "h":2}, {"label":"PgDn", "x":18.25, "y":3}, {"label":"2", "x":0, "y":4}, {"label":"3", "x":1, "y":4}, {"label":"Shift", "x":2.25, "y":4, "w":1.25}, {"label":"|", "x":3.5, "y":4, "w":1}, {"label":"Z", "x":4.5, "y":4}, {"label":"X", "x":5.5, "y":4}, {"label":"C", "x":6.5, "y":4}, {"label":"V", "x":7.5, "y":4}, {"label":"B", "x":8.5, "y":4}, {"label":"N", "x":10.5, "y":4}, {"label":"M", "x":11.5, "y":4}, {"label":"<", "x":12.5, "y":4}, {"label":">", "x":13.5, "y":4}, {"label":"?", "x":14.5, "y":4}, {"label":"Shift", "x":15.5, "y":4, "w":1.75}, {"label":"\u2191", "x":17.25, "y":4}, {"label":"End", "x":18.25, "y":4}, {"label":"0", "x":0, "y":5}, {"label":"1", "x":1, "y":5}, {"label":"Ctrl", "x":2.25, "y":5, "w":1.25}, {"label":"Win", "x":3.5, "y":5, "w":1.25}, {"label":"Alt", "x":4.75, "y":5, "w":1.25}, {"x":6, "y":5, "w":2}, {"x":8, "y":5}, {"x":10, "y":5, "w":2.75}, {"label":"Alt", "x":12.75, "y":5, "w":1.25}, {"label":"Fn", "x":14, "y":5}, {"label":"Ctrl", "x":15, "y":5, "w":1.25}, {"label":"\u2190", "x":16.25, "y":5}, {"label":"\u2193", "x":17.25, "y":5}, {"label":"\u2192", "x":18.25, "y":5}]
+ }
+ }
+}
diff --git a/keyboards/mt/split75/keymaps/art/keymap.c b/keyboards/mt/split75/keymaps/art/keymap.c
new file mode 100644
index 0000000000..c10059bb7d
--- /dev/null
+++ b/keyboards/mt/split75/keymaps/art/keymap.c
@@ -0,0 +1,267 @@
+#include <art.h>
+#include <sendstring_workman_zxcvm.h>
+
+bool is_win = false;
+
+enum custom_keycodes {
+ keyboardSpecificKeyCode = NEW_SAFE_RANGE //not used atm
+};
+
+bool led_update_user(led_t led_state) {
+ writePin(CAPSLOCK_LED_PIN, led_state.caps_lock);
+ return false;
+}
+
+void led_show_current_os(void) {
+ if (is_win) {
+ writePinHigh(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ writePinHigh(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ writePinHigh(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(NUMLOCK_LED_PIN);
+ wait_ms(50);
+ } else {
+ writePinHigh(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ writePinHigh(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ writePinHigh(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ writePinLow(SCROLLLOCK_LED_PIN);
+ wait_ms(50);
+ }
+}
+
+void keyboard_pre_init_user(void) {
+ led_show_current_os();
+
+ layer_state_set_user(layer_state);
+}
+
+layer_state_t layer_state_set_user(layer_state_t state) {
+ writePinLow(NUMLOCK_LED_PIN);
+ writePinLow(SCROLLLOCK_LED_PIN);
+ switch (get_highest_layer(state)) {
+ case MEDIA:
+ writePinHigh(SCROLLLOCK_LED_PIN);
+ case BASE:
+ writePinHigh(NUMLOCK_LED_PIN);
+ break;
+ case NUMPAD:
+ writePinHigh(SCROLLLOCK_LED_PIN);
+ break;
+ }
+ return state;
+}
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+ /* QWERTY ,-----------------------------------------. ,-----------------------------------------------------.
+ * | ESC | F1 | F2 | F3 | F4 | F5 | F6 | | F7 | F8 | F9 | F10 | F11 | F12 |Print| Ins | Home|
+ * ,-----------. |-----+-----+-----+-----+-----+-----+-----| |-----+-----+-----+-----+-----+-----+-----------+-----|
+ * | 8 | 9 | | ~ | 1 | 2 | 3 | 4 | 5 | 6 | | 7 | 8 | 9 | 0 | - | = | Backspac | Del |
+ * |-----+-----| |-----------------------------------------' ,--------------------------------------------------+-----|
+ * | 6 | 7 | | Tab | Q | W | E | R | T | | Y | U | I | O | P | [ | ] | \ | End |
+ * |-----+-----| |---------------------------------------. `--------------------------------------------------+-----|
+ * | 4 | 5 | | Caps | A | S | D | F | G | | H | J | K | L | ; | ' | Enter | PgUp|
+ * |-----+-----| |-----------------------------------------. `-------------------------------------------------+-----|
+ * | 2 | 3 | | Shift | Z | X | C | V | B | | N | M | , | . | / | Shift | Up | PgDn|
+ * |-----+-----| |-----------------------------------------' ,-------------------------------------------+-----+-----|
+ * | 0 | 1 | | Ctrl | GUI | Alt |Spac/MEDIA | BSPC| | NAV | Alt | NAV | Ctrl | Left| Down|Right|
+ * `-----------' `---------------------------------------' `-------------------------------------------------------'
+ */
+ [QWERTY] = LAYOUT(
+//--------------------------------Left Hand------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, LT(CONFIG, KC_PSCR), KC_INS, KC_HOME,
+KC_VOLD,KC_VOLU, KC_GRAVE, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS, KC_EQUAL, KC_BSPC, KC_DEL,
+KC_MPRV,KC_MNXT, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_END,
+KC_HOME,KC_END, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN,KC_QUOT,KC_ENTER, KC_PGUP,
+DYN_MACRO_PLAY1,MO(STRINGS),KC_LSFT,KC_Z,KC_X,KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, LT(GIT,KC_SLSH), KC_RSFT, KC_UP, KC_PGDN,
+DYN_REC_STOP,DYN_REC_START1,KC_LCTL, KC_LGUI, KC_LALT, LT(MEDIA,KC_SPC), LT(COMBOS,KC_BSPC), LT(NAV, KC_ENTER), KC_RALT, MO(LAYOUT_CHG),KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT
+ ),
+
+ /* Base ,-----------------------------------------. ,-----------------------------------------------------.
+ * | ESC | F1 | F2 | F3 | F4 | F5 | F6 | | F7 | F8 | F9 | F10 | F11 | F12 |Print| Ins | Home|
+ * ,-----------. |-----+-----+-----+-----+-----+-----+-----| |-----+-----+-----+-----+-----+-----+-----------+-----|
+ * | 8 | 9 | | ~ | 1 | 2 | 3 | 4 | 5 | 6 | | 7 | 8 | 9 | 0 | - | = | Backspac | Del |
+ * |-----+-----| |-----------------------------------------' ,--------------------------------------------------+-----|
+ * | 6 | 7 | | Tab | Q | W | E | R | T | | Y | U | I | O | P | [ | ] | \ | End |
+ * |-----+-----| |---------------------------------------. `--------------------------------------------------+-----|
+ * | 4 | 5 | | Caps | A | S | D | F | G | | H | J | K | L | ; | ' | Enter | PgUp|
+ * |-----+-----| |-----------------------------------------. `-------------------------------------------------+-----|
+ * | 2 | 3 | | Shift | Z | X | C | V | B | | N | M | , | . | / | Shift | Up | PgDn|
+ * |-----+-----| |-----------------------------------------' ,-------------------------------------------+-----+-----|
+ * | 0 | 1 | | Ctrl | GUI | Alt | Space |Space| | Space | Alt |QW_ON| Ctrl | Left| Down|Right|
+ * `-----------' `---------------------------------------' `-------------------------------------------------------'
+ */
+ [BASE] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------| |--------------------------------Right Hand------------------------------------------------
+ KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, LT(CONFIG, KC_PSCR), KC_INS, KC_HOME,
+KC_8, KC_9, KC_GRAVE, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS, KC_EQUAL, KC_BSPC, KC_DEL,
+KC_6, KC_7, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_END,
+KC_4, KC_5, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENTER, KC_PGUP,
+KC_2, KC_3, 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_UP, KC_PGDN,
+KC_0, KC_1, OS_CTRL, OS_WIN, KC_LALT, KC_SPC, KC_SPC, KC_SPC, KC_RALT, MO(QWERTY_MOD), KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT
+ ),
+
+ [WORKMAN] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, KC_Q, KC_D, KC_R, KC_W, KC_B, KC_J, KC_F, KC_U, KC_P, KC_SCLN, _______, _______, _______, _______,
+_______, _______, _______, KC_A, KC_S, KC_H, KC_T, KC_G, KC_Y, KC_N, KC_E, KC_O, KC_I, _______, _______, _______,
+_______, _______, _______, KC_Z, KC_X, KC_C, KC_V, KC_M, KC_K, KC_L, KC_COMM, KC_DOT, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, TO(QWERTY), _______, _______, _______, _______
+ ),
+
+ [NAV] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_8, KC_9, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_6, KC_7, _______, _______, KC_HOME, KC_UP, KC_END, KC_PGUP, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_4, KC_5, _______, _______, KC_LEFT, KC_DOWN, KC_RIGHT, KC_PGDOWN, _______, CTR_ALT, KC_RSFT, _______, _______, _______, _______, _______,
+KC_2, KC_3, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_0, KC_1, _______, _______, _______, KC_DEL, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [MEDIA] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, KC_MPRV, KC_VOLU, KC_MNXT, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, KC_VOLD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, KC_MUTE, KC_MPLY, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [COMBOS] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, SARCASM, _______, CTRL_CTV, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, CTRL_CAV, _______, _______, _______, CTRL_LCTV, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [STRINGS] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, TILD_BLOCK, PRESCRIPTION, _______, _______, FOURS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, ADMINS, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [QWERTY_MOD] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, KC_MPRV, KC_VOLU, KC_MNXT, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, KC_VOLD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, KC_MUTE, KC_MPLY, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, TO(QWERTY),_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [LAYOUT_CHG] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, CTL_ALT(KC_HOME), CTL_ALT(KC_UP), CTL_ALT(KC_END), CTL_ALT(KC_PGUP), _______, _______,_______, _______,_______,_______,_______, _______, _______,
+_______, _______, _______, _______, CTL_ALT(KC_LEFT), CTL_ALT(KC_DOWN), CTL_ALT(KC_RIGHT), CTL_ALT(KC_PGDOWN), _______,_______,_______,_______,_______, _______, _______, _______,
+_______, _______, TO(WORKMAN), _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+TO(NUMPAD), TO(NUMPAD), TO(BASE), _______, _______, _______, CTL_ALT(KC_BSPC), KC_LSFT, _______, _______, _______, _______, _______, _______
+ ),
+
+ [CONFIG] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+RGB_VAI, RGB_VAD, RGB_MODE_PLAIN, RGB_MODE_BREATHE, RGB_MODE_RAINBOW, RGB_MODE_SWIRL, RGB_MODE_SNAKE, RGB_MODE_KNIGHT, RGB_MODE_XMAS, RGB_MODE_GRADIENT, RGB_MODE_RGBTEST, XXXXXXX, XXXXXXX, _______, _______, _______, _______,
+RGB_SAI, RGB_SAD, _______, _______, _______, _______, _______, _______, _______, _______, _______, TOG_OS, _______, _______, _______, _______, _______,
+RGB_HUI, RGB_HUD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+RGB_MOD, RGB_RMOD, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+RGB_TOG, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [NUMPAD] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_8, KC_9, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_6, KC_7, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_4, KC_5, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_2, KC_3, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+KC_0, KC_1, _______, _______, _______, _______, _______, _______, _______, TO(QWERTY),_______, _______, _______, _______
+ ),
+
+ [GIT] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, G_DIFF, G_RST, _______, G_BRCH, _______, G_FTCH, _______, G_P, _______, _______, _______, _______, _______,
+_______, _______, _______, G_ADD, G_S, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, G_C, _______, G_MERG, _______, G_LOG, _______, G_DEV, _______, _______, _______, _______,
+_______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ ),
+
+ [GIT_C] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, G_CHEC, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, G_COMM, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_BSPC, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
+ ),
+
+ [GIT_S] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, G_STSH, G_SHOW, G_STAT, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, _______, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, _______, XXXXXXX, XXXXXXX,
+XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, KC_BSPC, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX, XXXXXXX
+ ),
+
+ /* ,-----------------------------------------. ,-----------------------------------------------------.
+ * | | | | | | | | | | | | | | | | | |
+ * ,-----------. |-----+-----+-----+-----+-----+-----+-----| |-----+-----+-----+-----+-----+-----+-----------+-----|
+ * | | | | | | | | | | | | | | | | | | | |
+ * |-----+-----| |-----------------------------------------' ,--------------------------------------------------+-----|
+ * | | | | | | | | | | | | | | | | | | | |
+ * |-----+-----| |---------------------------------------. `--------------------------------------------------+-----|
+ * | | | | | | | | | | | | | | | | | | |
+ * |-----+-----| |-----------------------------------------. `-------------------------------------------------+-----|
+ * | | | | | | | | | | | | | | | | | | |
+ * |-----+-----| |-----------------------------------------' ,-------------------------------------------+-----+-----|
+ * | | | | | | | | | | | | | | | | |
+ * `-----------' `---------------------------------------' `-------------------------------------------------------'
+ */
+ // [] = LAYOUT(
+// //--------------------------------Left Hand-----------------------------------------------| |--------------------------------Right Hand------------------------------------------------
+ // _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+// _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+// _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+// _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+// _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+// _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______
+ // ),
+};
+
+bool process_record_keymap(uint16_t keycode, keyrecord_t *record) {
+ switch (keycode) {
+
+ }
+ return true;
+} \ No newline at end of file
diff --git a/keyboards/mt/split75/keymaps/art/rules.mk b/keyboards/mt/split75/keymaps/art/rules.mk
new file mode 100644
index 0000000000..5f8cb68ad0
--- /dev/null
+++ b/keyboards/mt/split75/keymaps/art/rules.mk
@@ -0,0 +1 @@
+DYNAMIC_MACRO_ENABLE = yes \ No newline at end of file
diff --git a/keyboards/mt/split75/keymaps/default/keymap.c b/keyboards/mt/split75/keymaps/default/keymap.c
new file mode 100644
index 0000000000..320aaeb5da
--- /dev/null
+++ b/keyboards/mt/split75/keymaps/default/keymap.c
@@ -0,0 +1,32 @@
+#include QMK_KEYBOARD_H
+
+enum layer_names {
+ BASE
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+ /* Base ,-----------------------------------------. ,-----------------------------------------------------.
+ * | ESC | F1 | F2 | F3 | F4 | F5 | F6 | | F7 | F8 | F9 | F10 | F11 | F12 |Print| Ins | Del |
+ * ,-----------. |-----+-----+-----+-----+-----+-----+-----| |-----+-----+-----+-----+-----+-----+-----------+-----|
+ * | 8 | 9 | | ~ | 1 | 2 | 3 | 4 | 5 | 6 | | 7 | 8 | 9 | 0 | - | = | Backspac | Home|
+ * |-----+-----| |-----------------------------------------' ,--------------------------------------------------+-----|
+ * | 6 | 7 | | Tab | Q | W | E | R | T | | Y | U | I | O | P | [ | ] | \ | PgUp|
+ * |-----+-----| |---------------------------------------. `--------------------------------------------------+-----|
+ * | 4 | 5 | | Caps | A | S | D | F | G | | H | J | K | L | ; | ' | Enter | PgDn|
+ * |-----+-----| |-----------------------------------------. `-------------------------------------------------+-----|
+ * | 2 | 3 | | Shift | Z | X | C | V | B | | N | M | , | . | / | Shift | Up | End |
+ * |-----+-----| |-----------------------------------------' ,-------------------------------------------+-----+-----|
+ * | 0 | 1 | | Ctrl | GUI | Alt | Space |Space| | Space | Alt | | Ctrl | Left| Down|Right|
+ * `-----------' `---------------------------------------' `-------------------------------------------------------'
+ */
+ [BASE] = LAYOUT(
+//--------------------------------Left Hand-----------------------------------| |--------------------------------Right Hand------------------------------------------------
+ KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR, KC_INS, KC_DEL,
+KC_8, KC_9, KC_GRAVE, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS, KC_EQUAL, KC_BSPC, KC_HOME,
+KC_6, KC_7, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS, KC_PGUP,
+KC_4, KC_5, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENTER, KC_PGDN,
+KC_2, KC_3, 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_UP, KC_END,
+KC_0, KC_1, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_SPC, KC_SPC, KC_RALT, _______,KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT
+ )
+};
diff --git a/keyboards/mt/split75/keymaps/iso/keymap.c b/keyboards/mt/split75/keymaps/iso/keymap.c
new file mode 100644
index 0000000000..aca261b1d1
--- /dev/null
+++ b/keyboards/mt/split75/keymaps/iso/keymap.c
@@ -0,0 +1,48 @@
+/* Copyright 2020 Johannes Krude
+ *
+ * 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/>.
+ */
+
+#include QMK_KEYBOARD_H
+
+enum layer_names {
+ BASE
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+
+ /* Base ,-----------------------------------------. ,-----------------------------------------------------.
+ * | ESC | F1 | F2 | F3 | F4 | F5 | F6 | | F7 | F8 | F9 | F10 | F11 | F12 |Print| Ins | Del |
+ * ,-----------. |-----+-----+-----+-----+-----+-----+-----| |-----+-----+-----+-----+-----+-----+-----------+-----|
+ * | 8 | 9 | | ~ | 1 | 2 | 3 | 4 | 5 | 6 | | 7 | 8 | 9 | 0 | - | = | Backspac | Home|
+ * |-----+-----| |-----------------------------------------' ,--------------------------------------------------+-----|
+ * | 6 | 7 | | Tab | Q | W | E | R | T | | Y | U | I | O | P | [ | ] | | PgUp|
+ * |-----+-----| |---------------------------------------. `------------------------------------------+ Enter +-----|
+ * | 4 | 5 | | Caps | A | S | D | F | G | | H | J | K | L | ; | ' | # | | PgDn|
+ * |-----+-----| |-----------------------------------------. `-------------------------------------------------+-----|
+ * | 2 | 3 | | Shift | > | Z | X | C | V | B | | N | M | , | . | / | Shift | Up | End |
+ * |-----+-----| |-----------------------------------------' ,-------------------------------------------+-----+-----|
+ * | 0 | 1 | | Ctrl | GUI | Alt | Space |Space| | Space | Alt | APP | Ctrl | Left| Down|Right|
+ * `-----------' `---------------------------------------' `-------------------------------------------------------'
+ */
+ [BASE] = LAYOUT_iso(
+//--------------------------------Left Hand-----------------------------------| |--------------------------------Right Hand------------------------------------------------
+ KC_ESC, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, KC_F12, KC_PSCR, KC_INS, KC_DEL,
+KC_8, KC_9, KC_GRAVE, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS, KC_EQUAL, KC_BSPC, KC_HOME,
+KC_6, KC_7, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_PGUP,
+KC_4, KC_5, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_NUHS, KC_ENTER, KC_PGDN,
+KC_2, KC_3, KC_LSFT, KC_NUBS, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, KC_UP, KC_END,
+KC_0, KC_1, KC_LCTL, KC_LGUI, KC_LALT, KC_SPC, KC_SPC, KC_SPC, KC_RALT, KC_APP ,KC_RCTL, KC_LEFT, KC_DOWN, KC_RIGHT
+ )
+};
diff --git a/keyboards/mt/split75/matrix.c b/keyboards/mt/split75/matrix.c
new file mode 100644
index 0000000000..9e86bfc376
--- /dev/null
+++ b/keyboards/mt/split75/matrix.c
@@ -0,0 +1,155 @@
+/*
+Copyright 2017 Luiz Ribeiro <luizribeiro@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/>.
+*/
+
+#include <string.h>
+#include <stdio.h>
+#include "quantum.h"
+#include "i2c_master.h"
+#include "split75.h"
+
+#define RIGHT_HALF
+
+
+void matrix_set_row_status(uint8_t row);
+
+
+#if defined(RIGHT_HALF)
+#define I2C_TIMEOUT 10
+#define MCP23018_TWI_ADDRESS 0b0100000
+#define TW_READ 1
+#define TW_WRITE 0
+#define TWI_ADDR_WRITE ( (MCP23018_TWI_ADDRESS<<1) | TW_WRITE )
+#define TWI_ADDR_READ ( (MCP23018_TWI_ADDRESS<<1) | TW_READ )
+#define IODIRA 0x00 // i/o direction register
+#define IODIRB 0x01
+#define IODIRA 0x00 // i/o direction register
+#define IODIRB 0x01
+#define GPPUA 0x0C // GPIO pull-up resistor register
+#define GPPUB 0x0D
+#define GPIOA 0x12 // general purpose i/o port register (write modifies OLAT)
+#define GPIOB 0x13
+#define OLATA 0x14 // output latch register
+#define OLATB 0x15
+#define MCP_ROWS_START 8
+
+static uint8_t mcp23018_init(void) {
+ uint8_t ret;
+ uint8_t data[3];
+ // set pin direction
+ // - unused : input : 1
+ // - input : input : 1
+ // - driving : output : 0
+ data[0] = IODIRA;
+ data[1] = 0b00000000; // IODIRA
+ data[2] = (0b11111111); // IODIRB
+
+ ret = i2c_transmit(TWI_ADDR_WRITE, (uint8_t *)data, 3, I2C_TIMEOUT);
+ if (ret) goto out; // make sure we got an ACK
+
+ // set pull-up
+ // - unused : on : 1
+ // - input : on : 1
+ // - driving : off : 0
+ data[0] = GPPUA;
+ data[1] = 0b00000000; // IODIRA
+ data[2] = (0b11111111); // IODIRB
+
+ ret = i2c_transmit(TWI_ADDR_WRITE, (uint8_t *)data, 3, I2C_TIMEOUT);
+ if (ret) goto out; // make sure we got an ACK
+
+ // set logical value (doesn't matter on inputs)
+ // - unused : hi-Z : 1
+ // - input : hi-Z : 1
+ // - driving : hi-Z : 1
+ data[0] = OLATA;
+ data[1] = 0b11111111; // IODIRA
+ data[2] = (0b11111111); // IODIRB
+
+ ret = i2c_transmit(TWI_ADDR_WRITE, (uint8_t *)data, 3, I2C_TIMEOUT);
+
+out:
+ return ret;
+}
+#endif
+
+void matrix_init_custom(void) {
+ // Set rows as output starting high
+ DDRB = 0xFF;
+ PORTB = 0xFF;
+
+ // Set columns as inputs with pull-up enabled
+ DDRA = 0x00;
+ PORTA = 0xFF;
+
+ // Initialize i2c communication
+ i2c_init();
+
+#if defined(RIGHT_HALF)
+ // Initialize the chip on the other half
+ mcp23018_init();
+#endif
+
+}
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+ bool matrix_has_changed = false;
+
+ for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
+ // Store last value of row prior to reading
+ matrix_row_t last_row_value = current_matrix[row];
+
+ matrix_row_t cols = 0;
+ // Select the row to scan
+ matrix_set_row_status(row);
+
+ matrix_io_delay();
+ //Set the local row
+
+#if defined(RIGHT_HALF)
+ // Initialize to 0x7F in case I2C read fails,
+ // as 0x75 would be no keys pressed
+ uint8_t data = 0x7F;
+ // Receive the columns from right half
+ i2c_receive(TWI_ADDR_WRITE, &data, 1, I2C_TIMEOUT);
+#endif
+
+ cols |= ((~(PINA | 0x80)) & 0x7F);
+#if defined(RIGHT_HALF)
+ cols |= (((~(data | 0x80)) & 0x7F) << 7);
+#endif
+
+ current_matrix[row] = cols;
+ matrix_has_changed |= (last_row_value != current_matrix[row]);
+ }
+
+ return matrix_has_changed;
+}
+
+void matrix_set_row_status(uint8_t row) {
+#if defined(RIGHT_HALF)
+ uint8_t txdata[3];
+
+ //Set the remote row on port A
+ txdata[0] = (GPIOA);
+ txdata[1] = ( 0xFF & ~(1<<row) );
+ i2c_transmit(TWI_ADDR_WRITE, (uint8_t *)txdata, 2, I2C_TIMEOUT);
+#endif
+
+ //Set the local row on port B
+ DDRB = (1 << row);
+ PORTB = ~(1 << row);
+}
diff --git a/keyboards/mt/split75/readme.md b/keyboards/mt/split75/readme.md
new file mode 100644
index 0000000000..360ad55239
--- /dev/null
+++ b/keyboards/mt/split75/readme.md
@@ -0,0 +1,28 @@
+# split75
+
+![split75](https://i1.wp.com/mechboards.co.uk/wp-content/uploads/2019/10/HTB1qf0aSOLaK1RjSZFxq6ymPFXae.jpg)
+
+This is a port of the QMK firmware for the split75 keyboard, also known as the ve.a taobao split clone. It runs on
+ps2avrGB firmware, like the [ps2avrGB keyboard](https://www.keyclack.com/product/gb-ps2avrgb/) or the ones sold
+by [Winkeyless](http://winkeyless.kr/product/ps2avrgb-parts/).
+
+Original work performed by Michael L. Walker, all credit goes to him. I've tidied up the keymap (removed 3 extra keys), a couple of functions, info.json and this Readme.
+
+* Keyboard Maintainer: [Michael L. Walker](https://github.com/walkerstop)
+* Hardware Availability: https://a.aliexpress.com/_BT9raf https://item.taobao.com/item.htm?id=556970472669&toSite=main
+
+Make example for this keyboard (after setting up your build environment):
+
+ make mt/split75:default
+
+Flashing example for this keyboard ([after setting up the bootloadHID flashing environment](https://docs.qmk.fm/#/flashing_bootloadhid))
+
+ make mt/split75:default:flash
+
+or
+
+ bootloadHID -r split75_default.hex
+
+**Reset Key**: Hold down the key located at 3rd left position in the bottom row, commonly programmed as Left Control while plugging in the keyboard.
+
+See the [build environment setup](https://docs.qmk.fm/#/getting_started_build_tools) and the [make instructions](https://docs.qmk.fm/#/getting_started_make_guide) for more information. Brand new to QMK? Start with our [Complete Newbs Guide](https://docs.qmk.fm/#/newbs).
diff --git a/keyboards/mt/split75/rules.mk b/keyboards/mt/split75/rules.mk
new file mode 100644
index 0000000000..4aed5ab586
--- /dev/null
+++ b/keyboards/mt/split75/rules.mk
@@ -0,0 +1,22 @@
+# MCU name
+MCU = atmega32a
+
+# Bootloader selection
+BOOTLOADER = bootloadhid
+
+# Build Options
+# change yes to no to disable
+#
+BOOTMAGIC_ENABLE = no # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = no # Mouse keys
+EXTRAKEY_ENABLE = yes # Audio control and System control
+CONSOLE_ENABLE = no # Console for debug
+COMMAND_ENABLE = no # Commands for debug and configuration
+BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = yes # Enable keyboard RGB underglow
+WS2812_DRIVER = i2c
+
+# custom matrix setup
+CUSTOM_MATRIX = lite
+SRC = matrix.c
+QUANTUM_LIB_SRC += i2c_master.c
diff --git a/keyboards/mt/split75/split75.c b/keyboards/mt/split75/split75.c
new file mode 100644
index 0000000000..b8a3fe6c28
--- /dev/null
+++ b/keyboards/mt/split75/split75.c
@@ -0,0 +1 @@
+#include "split75.h"
diff --git a/keyboards/mt/split75/split75.h b/keyboards/mt/split75/split75.h
new file mode 100644
index 0000000000..93da3e7b83
--- /dev/null
+++ b/keyboards/mt/split75/split75.h
@@ -0,0 +1,47 @@
+#pragma once
+
+#include "quantum.h"
+
+// Number of keys in rows
+// 0 + 7 / 9
+// 2 + 7 / 8
+// 2 + 6 / 9
+// 2 + 6 / 8
+// 2 + 6 / 8
+// 2 + 5 / 7
+
+#define LAYOUT( \
+ K05, K15, K25, K35, K45, K55, K65, K75, K85, K95, K105, K115, K125, K135, K86, K87, \
+ K47, K46, K04, K14, K24, K34, K44, K54, K64, K74, K84, K94, K104, K114, K124, K96, K97, \
+ K37, K36, K03, K13, K23, K33, K43, K53, K73, K83, K93, K103, K113, K123, K133, K106, K107, \
+ K27, K26, K02, K12, K22, K32, K42, K52, K72, K82, K92, K102, K112, K122, K116, K117, \
+ K17, K16, K01, K21, K31, K41, K51, K61, K71, K81, K91, K101, K111, K131, K126, K127, \
+ K07, K06, K00, K10, K20, K30, K40, K70, K100, K110, K120, K130, K136, K137 \
+){ \
+ { K00, K10, K20, K30, K40, KC_NO, KC_NO, K70, KC_NO, KC_NO, K100, K110, K120, K130 }, \
+ { K01, KC_NO, K21, K31, K41, K51, K61, K71, K81, K91, K101, K111, KC_NO, K131 }, \
+ { K02, K12, K22, K32, K42, K52, KC_NO, K72, K82, K92, K102, K112, K122, }, \
+ { K03, K13, K23, K33, K43, K53, KC_NO, K73, K83, K93, K103, K113, K123, K133 }, \
+ { K04, K14, K24, K34, K44, K54, K64, K74, K84, K94, K104, K114, K124, }, \
+ { K05, K15, K25, K35, K45, K55, K65, K75, K85, K95, K105, K115, K125, K135 }, \
+ { K06, K16, K26, K36, K46, KC_NO, KC_NO, KC_NO, K86, K96, K106, K116, K126, K136 }, \
+ { K07, K17, K27, K37, K47, KC_NO, KC_NO, KC_NO, K87, K97, K107, K117, K127, K137 } \
+}
+
+#define LAYOUT_iso( \
+ K05, K15, K25, K35, K45, K55, K65, K75, K85, K95, K105, K115, K125, K135, K86, K87, \
+ K47, K46, K04, K14, K24, K34, K44, K54, K64, K74, K84, K94, K104, K114, K124, K96, K97, \
+ K37, K36, K03, K13, K23, K33, K43, K53, K73, K83, K93, K103, K113, K123, K133, K107, \
+ K27, K26, K02, K12, K22, K32, K42, K52, K72, K82, K92, K102, K112, K122, K132, K116, K117, \
+ K17, K16, K01, K11, K21, K31, K41, K51, K61, K71, K81, K91, K101, K111, K131, K126, K127, \
+ K07, K06, K00, K10, K20, K30, K40, K70, K100, K110, K120, K130, K136, K137 \
+){ \
+ { K00, K10, K20, K30, K40, KC_NO, KC_NO, K70, KC_NO, KC_NO, K100, K110, K120, K130 }, \
+ { K01, K11, K21, K31, K41, K51, K61, K71, K81, K91, K101, K111, KC_NO, K131 }, \
+ { K02, K12, K22, K32, K42, K52, KC_NO, K72, K82, K92, K102, K112, K122, K132 }, \
+ { K03, K13, K23, K33, K43, K53, KC_NO, K73, K83, K93, K103, K113, K123, K133 }, \
+ { K04, K14, K24, K34, K44, K54, K64, K74, K84, K94, K104, K114, K124, }, \
+ { K05, K15, K25, K35, K45, K55, K65, K75, K85, K95, K105, K115, K125, K135 }, \
+ { K06, K16, K26, K36, K46, KC_NO, KC_NO, KC_NO, K86, K96, KC_NO, K116, K126, K136 }, \
+ { K07, K17, K27, K37, K47, KC_NO, KC_NO, KC_NO, K87, K97, K107, K117, K127, K137 } \
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-26 10:00:59 +0000