[Keyboard] Maartenwut GH80-3700 (#9960)

* Add GH80-3700

* Add via keymap

* Update gh80_3700.h

* Update config.h

* LAYOUT_all -> LAYOUT_ortho_6x4

* Update readme.md

18 files changed, 595 insertions, 0 deletions

diff --git a/keyboards/maartenwut/gh80_3700/config.h b/keyboards/maartenwut/gh80_3700/config.h
new file mode 100644
index 000000000..6e0b24547
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/config.h
@@ -0,0 +1,143 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+
+#pragma once
+
+#include "config_common.h"
+
+/* USB Device descriptor parameter */
+#define VENDOR_ID       0x4705
+#define PRODUCT_ID      0x633A
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    Maartenwut
+#define PRODUCT         GH80 3700
+
+/* key matrix size */
+#define MATRIX_ROWS 6
+#define MATRIX_COLS 4
+
+/*
+ * Keyboard Matrix Assignments
+ *
+ * Change this to how you wired your keyboard
+ * COLS: AVR pins used for columns, left to right
+ * ROWS: AVR pins used for rows, top to bottom
+ * DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
+ *                  ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
+ *
+*/
+#define MATRIX_ROW_PINS {B3,C7,C6,B6,B5,B4}
+#define MATRIX_COL_PINS {B0,D7,D6,D4}
+#define UNUSED_PINS {}
+
+/* COL2ROW, ROW2COL*/
+#define DIODE_DIRECTION COL2ROW
+
+/*
+ * Split Keyboard specific options, make sure you have 'SPLIT_KEYBOARD = yes' in your rules.mk, and define SOFT_SERIAL_PIN.
+ */
+// #define SOFT_SERIAL_PIN D0 // or D1, D2, D3, E6
+
+// #define BACKLIGHT_PIN B7
+// #define BACKLIGHT_BREATHING
+// #define BACKLIGHT_LEVELS 3
+
+// #define RGB_DI_PIN B2
+// #ifdef RGB_DI_PIN
+//   #define RGBLED_NUM 8
+//   #define RGBLIGHT_HUE_STEP 8
+//   #define RGBLIGHT_SAT_STEP 8
+//   #define RGBLIGHT_VAL_STEP 8
+//   #define RGBLIGHT_LIMIT_VAL 255 /* The maximum brightness level */
+//   #define RGBLIGHT_SLEEP  /* If defined, the RGB lighting will be switched off when the host goes to sleep */
+// /*== all animations enable ==*/
+//   #define RGBLIGHT_ANIMATIONS
+// /*== or choose animations ==*/
+//   #define RGBLIGHT_EFFECT_BREATHING
+//   #define RGBLIGHT_EFFECT_RAINBOW_MOOD
+//   #define RGBLIGHT_EFFECT_RAINBOW_SWIRL
+//   #define RGBLIGHT_EFFECT_SNAKE
+//   #define RGBLIGHT_EFFECT_KNIGHT
+//   #define RGBLIGHT_EFFECT_CHRISTMAS
+//   #define RGBLIGHT_EFFECT_STATIC_GRADIENT
+//   #define RGBLIGHT_EFFECT_RGB_TEST
+//   #define RGBLIGHT_EFFECT_ALTERNATING
+// /*== customize breathing effect ==*/
+//   /*==== (DEFAULT) use fixed table instead of exp() and sin() ====*/
+//   #define RGBLIGHT_BREATHE_TABLE_SIZE 256      // 256(default) or 128 or 64
+//   /*==== use exp() and sin() ====*/
+//   #define RGBLIGHT_EFFECT_BREATHE_CENTER 1.85  // 1 to 2.7
+//   #define RGBLIGHT_EFFECT_BREATHE_MAX    255   // 0 to 255
+// #endif
+
+/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
+#define DEBOUNCE 5
+
+/* define if matrix has ghost (lacks anti-ghosting diodes) */
+//#define MATRIX_HAS_GHOST
+
+/* 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
+
+/* If defined, GRAVE_ESC will always act as ESC when CTRL is held.
+ * This is userful for the Windows task manager shortcut (ctrl+shift+esc).
+ */
+// #define GRAVE_ESC_CTRL_OVERRIDE
+
+/*
+ * Force NKRO
+ *
+ * Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
+ * state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
+ * makefile for this to work.)
+ *
+ * If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
+ * until the next keyboard reset.
+ *
+ * NKRO may prevent your keystrokes from being detected in the BIOS, but it is
+ * fully operational during normal computer usage.
+ *
+ * For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
+ * or via bootmagic (hold SPACE+N while plugging in the keyboard). Once set by
+ * bootmagic, NKRO mode will always be enabled until it is toggled again during a
+ * power-up.
+ *
+ */
+//#define FORCE_NKRO
+
+/*
+ * 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
+
+// Define rotary encoder
+#define ENCODERS_PAD_A { F1 }
+#define ENCODERS_PAD_B { F4 }
diff --git a/keyboards/maartenwut/gh80_3700/gh80_3700.c b/keyboards/maartenwut/gh80_3700/gh80_3700.c
new file mode 100644
index 000000000..2c3595e49
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/gh80_3700.c
@@ -0,0 +1,46 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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 "gh80_3700.h"
+
+void matrix_init_kb(void) {
+  // put your keyboard start-up code here
+  // runs once when the firmware starts up
+
+  matrix_init_user();
+  led_init_ports();
+}
+
+void led_init_ports(void) {
+  setPinOutput(E6);
+  setPinOutput(B1);
+  setPinOutput(D0);
+  setPinOutput(D1);
+  setPinOutput(F0);
+  
+  writePinHigh(E6);
+  writePinHigh(B1);
+  writePinHigh(D0);
+  writePinHigh(D1);
+  writePinHigh(F0);
+}
+
+bool led_update_kb(led_t led_state) {
+  if(led_update_user(led_state)) {
+    writePin(E6, !led_state.num_lock);
+  }
+
+  return true;
+}
\ No newline at end of file
diff --git a/keyboards/maartenwut/gh80_3700/gh80_3700.h b/keyboards/maartenwut/gh80_3700/gh80_3700.h
new file mode 100644
index 000000000..053885ae3
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/gh80_3700.h
@@ -0,0 +1,63 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+#pragma once
+
+#include "quantum.h"
+
+/* This a shortcut to help you visually see your layout.
+ *
+ * The first section contains all of the arguments representing the physical
+ * layout of the board and position of the keys.
+ *
+ * The second converts the arguments into a two-dimensional array which
+ * represents the switch matrix.
+ */
+
+#define LAYOUT_all LAYOUT_ortho_6x4
+
+#define LAYOUT_ortho_6x4( \
+    k00, k01, k02, k03, \
+    k10, k11, k12, k13, \
+    k20, k21, k22, k23, \
+    k30, k31, k32, k33, \
+    k40, k41, k42, k43, \
+    k50, k51, k52, k53  \
+) \
+{ \
+    { k00, k01, k02, k03 }, \
+    { k10, k11, k12, k13 }, \
+    { k20, k21, k22, k23 }, \
+    { k30, k31, k32, k33 }, \
+    { k40, k41, k42, k43 }, \
+    { k50, k51, k52, k53 }  \
+}
+
+#define LAYOUT_numpad_6x4( \
+    k00, k01, k02, k03,    \
+    k10, k11, k12, k13,    \
+    k20, k21, k22,         \
+    k30, k31, k32, k33,    \
+    k40, k41, k42,         \
+    k50,      k52, k53     \
+) \
+{ \
+    { k00, k01, k02, k03 },   \
+    { k10, k11, k12, k13 },   \
+    { k20, k21, k22, KC_NO }, \
+    { k30, k31, k32, k33 },   \
+    { k40, k41, k42, KC_NO }, \
+    { k50, KC_NO, k52, k53 }  \
+}
diff --git a/keyboards/maartenwut/gh80_3700/info.json b/keyboards/maartenwut/gh80_3700/info.json
new file mode 100644
index 000000000..128f44ee8
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/info.json
@@ -0,0 +1,72 @@
+{
+    "keyboard_name": "GH80-3700", 
+    "url": "https://github.com/Maartenwut/gh80-series/tree/master/GH80-3700", 
+    "maintainer": "Maartenwut", 
+    "width": 4, 
+    "height": 7, 
+    "layouts": {
+        "LAYOUT_ortho_6x4": {
+            "layout": [
+                {"x":0, "y":0},
+                {"x":1, "y":0},
+                {"x":2, "y":0},
+                {"x":3, "y":0},
+                
+                {"x":0, "y":2},
+                {"x":1, "y":2},
+                {"x":2, "y":2},
+                {"x":3, "y":2},
+                
+                {"x":0, "y":3},
+                {"x":1, "y":3},
+                {"x":2, "y":3},
+                {"x":3, "y":3},
+                
+                {"x":0, "y":4},
+                {"x":1, "y":4},
+                {"x":2, "y":4},
+                {"x":3, "y":4},
+                
+                {"x":0, "y":5},
+                {"x":1, "y":5},
+                {"x":2, "y":5}, 
+                {"x":3, "y":5},
+                
+                {"x":0, "y":6},
+                {"x":1, "y":6},
+                {"x":2, "y":6},
+                {"x":3, "y":6}
+            ]
+        },
+        "LAYOUT_numpad_6x4": {
+            "layout": [
+                {"x":0, "y":0},
+                {"x":1, "y":0},
+                {"x":2, "y":0},
+                {"x":3, "y":0},
+
+                {"x":0, "y":2},
+                {"x":1, "y":2},
+                {"x":2, "y":2},
+                {"x":3, "y":2},
+
+                {"x":0, "y":3},
+                {"x":1, "y":3},
+                {"x":2, "y":3},
+
+                {"x":0, "y":4},
+                {"x":1, "y":4},
+                {"x":2, "y":4},
+                {"x":3, "y":3, "h":2},
+
+                {"x":0, "y":5},
+                {"x":1, "y":5},
+                {"x":2, "y":5},
+
+                {"x":0, "y":6, "w":2},
+                {"x":2, "y":6},
+                {"x":3, "y":5, "h":2}
+            ]
+        }
+    }
+}
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/default/keymap.c b/keyboards/maartenwut/gh80_3700/keymaps/default/keymap.c
new file mode 100644
index 000000000..555036de7
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/default/keymap.c
@@ -0,0 +1,26 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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 QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ortho_6x4(
+  KC_ESC,   KC_TAB,   KC_EQL,   KC_BSPC,
+  KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,
+  KC_P7,    KC_P8,    KC_P9,    KC_PPLS,
+  KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+  KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+  KC_P0,    KC_P0,    KC_PDOT,  KC_PENT),
+};
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/default/readme.md b/keyboards/maartenwut/gh80_3700/keymaps/default/readme.md
new file mode 100644
index 000000000..8e1232190
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/default/readme.md
@@ -0,0 +1 @@
+This is the default keymap for the GH80-3700.
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h b/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h
new file mode 100644
index 000000000..0d9508060
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/config.h
@@ -0,0 +1,69 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+
+#pragma once
+
+#ifdef PS2_USE_USART
+#define PS2_CLOCK_PORT  PORTD
+#define PS2_CLOCK_PIN   PIND
+#define PS2_CLOCK_DDR   DDRD
+#define PS2_CLOCK_BIT   5
+#define PS2_DATA_PORT   PORTD
+#define PS2_DATA_PIN    PIND
+#define PS2_DATA_DDR    DDRD
+#define PS2_DATA_BIT    2
+
+/* synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling edge */
+/* set DDR of CLOCK as input to be slave */
+#define PS2_USART_INIT() do {   \
+    PS2_CLOCK_DDR &= ~(1<<PS2_CLOCK_BIT);   \
+    PS2_DATA_DDR &= ~(1<<PS2_DATA_BIT);     \
+    UCSR1C = ((1 << UMSEL10) |  \
+              (3 << UPM10)   |  \
+              (0 << USBS1)   |  \
+              (3 << UCSZ10)  |  \
+              (0 << UCPOL1));   \
+    UCSR1A = 0;                 \
+    UBRR1H = 0;                 \
+    UBRR1L = 0;                 \
+} while (0)
+#define PS2_USART_RX_INT_ON() do {  \
+    UCSR1B = ((1 << RXCIE1) |       \
+              (1 << RXEN1));        \
+} while (0)
+#define PS2_USART_RX_POLL_ON() do { \
+    UCSR1B = (1 << RXEN1);          \
+} while (0)
+#define PS2_USART_OFF() do {    \
+    UCSR1C = 0;                 \
+    UCSR1B &= ~((1 << RXEN1) |  \
+                (1 << TXEN1));  \
+} while (0)
+#define PS2_USART_RX_READY      (UCSR1A & (1<<RXC1))
+#define PS2_USART_RX_DATA       UDR1
+#define PS2_USART_ERROR         (UCSR1A & ((1<<FE1) | (1<<DOR1) | (1<<UPE1)))
+#define PS2_USART_RX_VECT       USART1_RX_vect
+#define PS2_MOUSE_ENABLE_SCROLLING
+#define PS2_MOUSE_INIT_DELAY 1000 
+#define PS2_MOUSE_BTN_LEFT      0
+#define PS2_MOUSE_BTN_RIGHT     1
+#define PS2_MOUSE_BTN_MIDDLE    2
+#define PS2_MOUSE_X_MULTIPLIER 2
+#define PS2_MOUSE_Y_MULTIPLIER 2
+#define PS2_MOUSE_V_MULTIPLIER 1
+#define PS2_MOUSE_SCROLL_BTN_MASK 0
+#define PS2_MOUSE_USE_REMOTE_MODE
+#endif
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c b/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c
new file mode 100644
index 000000000..555036de7
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/keymap.c
@@ -0,0 +1,26 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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 QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ortho_6x4(
+  KC_ESC,   KC_TAB,   KC_EQL,   KC_BSPC,
+  KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,
+  KC_P7,    KC_P8,    KC_P9,    KC_PPLS,
+  KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+  KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+  KC_P0,    KC_P0,    KC_PDOT,  KC_PENT),
+};
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md b/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md
new file mode 100644
index 000000000..d434753b1
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/readme.md
@@ -0,0 +1 @@
+This is a keymap for the GH80-3700 with PS/2 mouse functionality enabled.
\ No newline at end of file
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk b/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk
new file mode 100644
index 000000000..c58a93b73
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/ps2/rules.mk
@@ -0,0 +1,5 @@
+# Build Options
+#   change yes to no to disable
+#
+PS2_MOUSE_ENABLE = yes
+PS2_USE_USART = yes
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/rgb/config.h b/keyboards/maartenwut/gh80_3700/keymaps/rgb/config.h
new file mode 100644
index 000000000..1bc51758c
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/rgb/config.h
@@ -0,0 +1,21 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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/>.
+ */
+ 
+#pragma once
+
+#define RGB_DI_PIN B2
+#define RGBLED_NUM 8
+#define RGBLIGHT_ANIMATIONS
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/rgb/keymap.c b/keyboards/maartenwut/gh80_3700/keymaps/rgb/keymap.c
new file mode 100644
index 000000000..555036de7
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/rgb/keymap.c
@@ -0,0 +1,26 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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 QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ortho_6x4(
+  KC_ESC,   KC_TAB,   KC_EQL,   KC_BSPC,
+  KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,
+  KC_P7,    KC_P8,    KC_P9,    KC_PPLS,
+  KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+  KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+  KC_P0,    KC_P0,    KC_PDOT,  KC_PENT),
+};
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/rgb/readme.md b/keyboards/maartenwut/gh80_3700/keymaps/rgb/readme.md
new file mode 100644
index 000000000..cac017f42
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/rgb/readme.md
@@ -0,0 +1 @@
+This is a keymap for the GH80-3700 with RGB enabled.
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/rgb/rules.mk b/keyboards/maartenwut/gh80_3700/keymaps/rgb/rules.mk
new file mode 100644
index 000000000..06d70d581
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/rgb/rules.mk
@@ -0,0 +1,4 @@
+# Build Options
+#   change yes to no to disable
+#
+RGBLIGHT_ENABLE = yes
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/via/keymap.c b/keyboards/maartenwut/gh80_3700/keymaps/via/keymap.c
new file mode 100644
index 000000000..58d6ee754
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/via/keymap.c
@@ -0,0 +1,50 @@
+/* Copyright 2020 Maarten Dekkers <maartenwut@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 QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+[0] = LAYOUT_ortho_6x4(
+  KC_ESC,   KC_TAB,   KC_EQL,   KC_BSPC,
+  KC_NLCK,  KC_PSLS,  KC_PAST,  KC_PMNS,
+  KC_P7,    KC_P8,    KC_P9,    KC_PPLS,
+  KC_P4,    KC_P5,    KC_P6,    KC_PPLS,
+  KC_P1,    KC_P2,    KC_P3,    KC_PENT,
+  KC_P0,    KC_P0,    KC_PDOT,  KC_PENT),
+  
+[1] = LAYOUT_ortho_6x4(
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______),
+  
+[2] = LAYOUT_ortho_6x4(
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______),
+  
+[3] = LAYOUT_ortho_6x4(
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______,
+  _______,  _______,  _______,  _______),
+};
diff --git a/keyboards/maartenwut/gh80_3700/keymaps/via/rules.mk b/keyboards/maartenwut/gh80_3700/keymaps/via/rules.mk
new file mode 100644
index 000000000..36b7ba9cb
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/keymaps/via/rules.mk
@@ -0,0 +1,2 @@
+VIA_ENABLE = yes
+LTO_ENABLE = yes
diff --git a/keyboards/maartenwut/gh80_3700/readme.md b/keyboards/maartenwut/gh80_3700/readme.md
new file mode 100644
index 000000000..44f753334
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/readme.md
@@ -0,0 +1,15 @@
+# GH80-3700
+
+![GH80-3700](https://i.imgur.com/xMCzb8vl.jpg)
+
+## Support
+* Keyboard Maintainer: [Maarten Dekkers](https://github.com/maartenwut)
+* Hardware Supported: GH80-3700 PCB
+* Hardware Availability: [maartenwut.com](https://maartenwut.com/product/gh80-3700-numpad-pcb/)
+
+## Build
+Make example for this keyboard (after setting up your build environment):
+
+    make maartenwut/gh80_3700:default
+
+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).
\ No newline at end of file
diff --git a/keyboards/maartenwut/gh80_3700/rules.mk b/keyboards/maartenwut/gh80_3700/rules.mk
new file mode 100644
index 000000000..01ea4754f
--- /dev/null
+++ b/keyboards/maartenwut/gh80_3700/rules.mk
@@ -0,0 +1,24 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = qmk-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = lite     # Virtual DIP switch configuration
+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
+# Do not enable SLEEP_LED_ENABLE. it uses the same timer as BACKLIGHT_ENABLE
+SLEEP_LED_ENABLE = no       # Breathing sleep LED during USB suspend
+# if this doesn't work, see here: https://github.com/tmk/tmk_keyboard/wiki/FAQ#nkro-doesnt-work
+NKRO_ENABLE = no            # USB Nkey Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+BLUETOOTH_ENABLE = no       # Enable Bluetooth
+ENCODER_ENABLE = yes        # Enable support for rotary encoders
+
+LAYOUTS = numpad_6x4 ortho_6x4