New keyboard: Cu75 (#2374)

* Added Modular keyboards L,R and NUM

Created code modules for the 3 modules of the modular keyboard.
Original idea by MechboardsUK. Uses i2c implementation similar to lets
split

* Remove modular from master

This is to fix incorrect branching

* Addition of cu75

Addition of cu75 keyboard, uses libraries from LFKeyboards directory which are path linked to reduce file duplication.

Minor fix on cu24 readme

* Minor Readme Fix

1 files changed, 110 insertions, 0 deletions

diff --git a/keyboards/cu75/cu75.h b/keyboards/cu75/cu75.h
new file mode 100644
index 000000000..e4d7f2f93
--- /dev/null
+++ b/keyboards/cu75/cu75.h
@@ -0,0 +1,110 @@
+#ifndef CU75_H
+#define CU75_H
+
+/* if the kb.h file exists (because we're running from qmkbuilder) include it */
+#ifdef __has_include
+#if __has_include("kb.h")
+#include "kb.h"
+#endif
+#endif
+
+#include "quantum.h"
+#include "matrix.h"
+#include <avr/sfr_defs.h>
+
+#ifndef cbi
+#define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
+#endif
+
+#ifndef sbi
+#define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
+#endif
+
+
+typedef struct RGB_Color {
+    uint16_t red;
+    uint16_t green;
+    uint16_t blue;
+} RGB_Color;
+
+typedef struct Layer_Info {
+    uint32_t layer;
+    uint32_t mask;
+    RGB_Color color;
+} Layer_Info;
+
+extern const uint32_t layer_count;
+extern const Layer_Info layer_info[];
+
+enum action_functions {
+    LFK_CLEAR = 0,          // Resets all layers
+    LFK_ESC_TILDE,          // esc+lshift = ~
+    LFK_SET_DEFAULT_LAYER,  // changes and saves current base layer to eeprom
+    LFK_CLICK_TOGGLE,       // Adjusts click duration
+    LFK_CLICK_FREQ_HIGHER,  // Adjusts click frequency
+    LFK_CLICK_FREQ_LOWER,   // Adjusts click frequency
+    LFK_CLICK_TIME_LONGER,  // Adjusts click duration
+    LFK_CLICK_TIME_SHORTER, // Adjusts click duration
+    LFK_DEBUG_SETTINGS,     // prints LED and click settings to HID
+    LFK_LED_TEST            // cycles through switch and RGB LEDs
+};
+
+#define CLICK_HZ 500
+#define CLICK_MS 2
+#define CLICK_ENABLED 0
+
+void reset_keyboard_kb(void);
+void click(uint16_t freq, uint16_t duration);
+
+/* Vanilla Keymap */
+// This a shortcut to help you visually see your layout.
+/*
+* ,-------------------------------------------------------------------------------.
+* | 01 | 02 | 03 | 04 | 05 | 06 | 07 | 08 | 09 | 0A | 0B | 0C | 0D | 0E | 0F | 0G |
+* |-------------------------------------------------------------------------------|
+* | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 1A | 1B | 1C | 1D |   1E    | 1G |
+* |-------------------------------------------------------------------------------|
+* | 21   | 22 |23 | 24 | 25 | 26 | 27 | 28 | 29 | 2A | 2B | 2C | 2D |   2E   | 2F |
+* |-------------------------------------------------------------------------------|
+* | 31    | 32 |33 | 34 | 35 | 36 | 37 | 38 | 39 | 3A | 3B | 3C |      3D    | 3F |
+* |-------------------------------------------------------------------------------|
+* | 41      | 42 |43 | 45 | 46 | 47 | 48 | 49 | 4A | 4B | 4C |    4D    | 4E | 4F |
+* |-------------------------------------------------------------------------------|
+* | 51  |  52  | 53  | 54 |         57        | 59 | 5A | 5B | 5C |  5D | 5E | 5F |
+* `-------------------------------------------------------------------------------'
+*/
+// The first section contains all of the arguements
+// The second converts the arguments into a two-dimensional array
+#define KEYMAP( \
+    k01, k02, k03, k04, k05, k06, k07, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F, k0G, \
+    k11, k12, k13, k14, k15, k16, k17, k18, k19, k1A, k1B, k1C, k1D,      k1E, k1G, \
+    k21,   k22, k23, k24, k25, k26, k27, k28, k29, k2A, k2B, k2C, k2D,    k2E, k2F, \
+    k31,    k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B, k3C,        k3D, k3F, \
+    k41,     k43, k44,  k45, k46, k47, k48, k49, k4A, k4B, k4C,      k4D, k4E, k4F, \
+    k51, k52, k53,        k54,      k57,       k59,        k5A, k5B, k5C, k5D, k5E, k5F \
+) { \
+    {k01, k02,   k03, k04,   k05,   k06,   k07, k08,   k09, k0A, k0B, k0C, k0D, k0E,   k0F,   k0G}, \
+    {k11, k12,   k13, k14,   k15,   k16,   k17, k18,   k19, k1A, k1B, k1C, k1D, k1E,   KC_NO, k1G}, \
+    {k21, k22,   k23, k24,   k25,   k26,   k27, k28,   k29, k2A, k2B, k2C, k2D, k2E,   k2F,   KC_NO}, \
+    {k31, k32,   k33, k34,   k35,   k36,   k37, k38,   k39, k3A, k3B, k3C, k3D, KC_NO, k3F,   KC_NO}, \
+    {k41, KC_NO, k43, k44,   k45,   k46,   k47, k48,   k49, k4A, k4B, k4C, k4D, k4E,   k4F,   KC_NO}, \
+    {k51, k52,   k53, k54, KC_NO, KC_NO,   k57, KC_NO, k59, k5A, k5B, k5C, k5D, k5E,   k5F,   KC_NO}, \
+}
+
+#define ISO_KEYMAP( \
+    k01, k02, k03, k04, k05, k06, k07, k08, k09, k0A, k0B, k0C, k0D, k0E, k0F, k0G, \
+    k11, k12, k13, k14, k15, k16, k17, k18, k19, k1A, k1B, k1C, k1D,      k1E, k1G, \
+    k21,   k22, k23, k24, k25, k26, k27, k28, k29, k2A, k2B, k2C, k2D,    k3D, k2F, \
+    k31,    k32, k33, k34, k35, k36, k37, k38, k39, k3A, k3B, k3C,        k2E, k3F, \
+    k41, k42, k43, k44,  k45, k46, k47, k48, k49, k4A, k4B, k4C,      k4D, k4E, k4F, \
+    k51, k52, k53,        k54,      k57,       k59,        k5A, k5B, k5C, k5D, k5E, k5F \
+) { \
+    {k01, k02,   k03, k04,   k05,   k06,   k07, k08,   k09, k0A, k0B, k0C, k0D, k0E,   k0F,   k0G}, \
+    {k11, k12,   k13, k14,   k15,   k16,   k17, k18,   k19, k1A, k1B, k1C, k1D, k1E,   KC_NO, k1G}, \
+    {k21, k22,   k23, k24,   k25,   k26,   k27, k28,   k29, k2A, k2B, k2C, k2D, k2E,   k2F,   KC_NO}, \
+    {k31, k32,   k33, k34,   k35,   k36,   k37, k38,   k39, k3A, k3B, k3C, k3D, KC_NO, k3F,   KC_NO}, \
+    {k41, k42, k43, k44,   k45,   k46,   k47, k48,   k49, k4A, k4B, k4C, k4D, k4E,     k4F,   KC_NO}, \
+    {k51, k52,   k53, k54, KC_NO, KC_NO,   k57, KC_NO, k59, k5A, k5B, k5C, k5D, k5E,   k5F,   KC_NO}, \
+}
+
+#endif //CU75_H