[Keyboard] add pierce (#17000)

Co-authored-by: Ryan <fauxpark@gmail.com>
Co-authored-by: Dan Abrahamsson <dan.abrahamsson@imsystech.com>

13 files changed, 518 insertions, 0 deletions

diff --git a/keyboards/pierce/config.h b/keyboards/pierce/config.h
new file mode 100644
index 0000000000..242b2ebf92
--- /dev/null
+++ b/keyboards/pierce/config.h
@@ -0,0 +1,36 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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       0xFEED
+#define PRODUCT_ID      0x6060
+#define DEVICE_VER      0x0001
+#define MANUFACTURER    durken
+#define PRODUCT         pierce
+
+/* key matrix size */
+#define MATRIX_ROWS 4
+#define MATRIX_COLS 10
+
+/* COL2ROW or ROW2COL */
+#define DIODE_DIRECTION COL2ROW
+
+/* Set 0 if debouncing isn't needed */
+#define DEBOUNCE 5
diff --git a/keyboards/pierce/info.json b/keyboards/pierce/info.json
new file mode 100644
index 0000000000..7179076794
--- /dev/null
+++ b/keyboards/pierce/info.json
@@ -0,0 +1,50 @@
+{
+    "keyboard_name": "pierce", 
+    "url": "https://github.com/durken1/pierce", 
+    "maintainer": "durken1", 
+    "layouts": {
+        "LAYOUT_split_3x5_3": {
+            "layout": [
+                {"x":0, "y":1}, 
+                {"x":1, "y":0.63}, 
+                {"x":2, "y":0.5}, 
+                {"x":3, "y":0.63}, 
+                {"x":4, "y":0.75}, 
+                {"x":7, "y":0.75}, 
+                {"x":8, "y":0.63}, 
+                {"x":9, "y":0.5}, 
+                {"x":10, "y":0.63}, 
+                {"x":11, "y":1}, 
+
+                {"x":0, "y":2}, 
+                {"x":1, "y":1.63}, 
+                {"x":2, "y":1.5}, 
+                {"x":3, "y":1.63}, 
+                {"x":4, "y":1.75}, 
+                {"x":7, "y":1.75}, 
+                {"x":8, "y":1.63},
+                {"x":9, "y":1.5}, 
+                {"x":10, "y":1.63}, 
+                {"x":11, "y":2}, 
+
+                {"x":0, "y":3}, 
+                {"x":1, "y":2.63}, 
+                {"x":2, "y":2.5}, 
+                {"x":3, "y":2.63}, 
+                {"x":4, "y":2.75}, 
+                {"x":7, "y":2.75}, 
+                {"x":8, "y":2.63}, 
+                {"x":9, "y":2.5}, 
+                {"x":10, "y":2.63}, 
+                {"x":11, "y":3}, 
+
+                {"x":2.5, "y":3.66}, 
+                {"x":3.5, "y":4.0}, 
+                {"x":4.5, "y":4.25}, 
+
+                {"x":7.5, "y":4.0}, 
+                {"x":6.5, "y":4.25},
+                {"x":8.5, "y":3.66}]
+        }
+    }
+}
diff --git a/keyboards/pierce/keymaps/default/keymap.c b/keyboards/pierce/keymaps/default/keymap.c
new file mode 100644
index 0000000000..69ff60113b
--- /dev/null
+++ b/keyboards/pierce/keymaps/default/keymap.c
@@ -0,0 +1,37 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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 layers { 
+    BASE, 
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [BASE] = LAYOUT_split_3x5_3(
+  // Base
+  //,--------------------------------------------,                    ,--------------------------------------------.
+         KC_Q,    KC_W,    KC_E,    KC_R,    KC_T,                         KC_Y,    KC_U,    KC_I,    KC_O,    KC_P,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+         KC_A,    KC_S,    KC_D,    KC_F,    KC_G,                         KC_H,    KC_J,    KC_K,    KC_L, KC_SCLN,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+         KC_Z,    KC_X,    KC_C,    KC_V,    KC_B,                         KC_N,    KC_M, KC_COMM,  KC_DOT, KC_SLSH,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                  KC_ESC,  KC_SPC,  KC_TAB,     KC_ENT, KC_BSPC,  KC_DEL
+                             //`--------------------------'  '--------------------------'
+
+  )
+};
diff --git a/keyboards/pierce/keymaps/default/rules.mk b/keyboards/pierce/keymaps/default/rules.mk
new file mode 100644
index 0000000000..0ba59d4e7e
--- /dev/null
+++ b/keyboards/pierce/keymaps/default/rules.mk
@@ -0,0 +1,2 @@
+TRACKPOINT = no
+AUTO_BUTTONS = no
diff --git a/keyboards/pierce/keymaps/durken1/config.h b/keyboards/pierce/keymaps/durken1/config.h
new file mode 100644
index 0000000000..7d19a0b83b
--- /dev/null
+++ b/keyboards/pierce/keymaps/durken1/config.h
@@ -0,0 +1,77 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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
+
+// default but important
+#define TAPPING_TERM 220
+
+// Prevent normal rollover on alphas from accidentally triggering mods.
+#define IGNORE_MOD_TAP_INTERRUPT
+
+// Enable rapid switch from tap to hold, disables double tap hold auto-repeat.
+#define TAPPING_FORCE_HOLD
+
+#define PERMISSIVE_HOLD
+
+// Recommended for heavy chording.
+#define QMK_KEYS_PER_SCAN 4
+
+// Combo settings
+#define COMBO_COUNT 3
+#define COMBO_TERM 35
+
+#ifdef PS2_USE_USART
+#define PS2_CLOCK_PIN   D5
+#define PS2_DATA_PIN    D2
+
+/* synchronous, odd parity, 1-bit stop, 8-bit data, sample at falling edge */
+/* set DDR of CLOCK as input to be slave */
+#define PS2_MOUSE_ROTATE 270 // compensate for east-facing device orientation
+#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
+#endif
+
+#ifdef AUTO_BUTTONS
+  #define AUTO_BUTTONS_TIMEOUT 750
+#endif
+
diff --git a/keyboards/pierce/keymaps/durken1/keymap.c b/keyboards/pierce/keymaps/durken1/keymap.c
new file mode 100644
index 0000000000..a4f77753a8
--- /dev/null
+++ b/keyboards/pierce/keymaps/durken1/keymap.c
@@ -0,0 +1,159 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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
+#include "keymap_swedish.h"
+
+enum layers { 
+    BASE, 
+    MBO, 
+    SYM, 
+    NUM, 
+    FN
+};
+
+enum combos { 
+    WF_ARNG, 
+    EI_ADIA, 
+    UK_ODIA 
+};
+
+#if defined PS2_MOUSE_ENABLE
+#include "ps2_mouse.h"
+#endif
+
+#if defined AUTO_BUTTONS && defined PS2_MOUSE_ENABLE 
+
+static uint16_t auto_buttons_timer;
+extern int tp_buttons; // mousekey button state set in action.c and used in ps2_mouse.c
+
+void ps2_mouse_moved_user(report_mouse_t *mouse_report) {
+    if (auto_buttons_timer) {
+        auto_buttons_timer = timer_read();
+    } else {
+        if (!tp_buttons) {
+            layer_on(MBO);
+            auto_buttons_timer = timer_read();
+        }
+    }
+}
+
+void matrix_scan_user(void) {
+    if (auto_buttons_timer && (timer_elapsed(auto_buttons_timer) > AUTO_BUTTONS_TIMEOUT)) {
+        if (!tp_buttons) {
+            layer_off(MBO);
+            auto_buttons_timer = 0;
+        }
+    }
+}
+
+#endif // defined AUTO_BUTTONS && defined PS2_MOUSE_ENABLE
+
+// Left-hand home row mods
+#define GUI_A LGUI_T(KC_A)
+#define ALT_R LALT_T(KC_R)
+#define SFT_S LSFT_T(KC_S)
+#define CTRL_T LCTL_T(KC_T)
+
+// Right-hand home row mods
+#define CTL_N RCTL_T(KC_N)
+#define SFT_E RSFT_T(KC_E)
+#define ALT_I LALT_T(KC_I)
+#define GUI_O LGUI_T(KC_O)
+
+#define NUM_SPC LT(NUM, KC_SPC)
+#define FN_ENT LT(FN, KC_ENT)
+#define SYM_BSP LT(SYM, KC_BSPC)
+
+const uint16_t PROGMEM arng_combo[] = {ALT_R, SFT_S, COMBO_END};
+const uint16_t PROGMEM adia_combo[] = {SFT_E, ALT_I, COMBO_END};
+const uint16_t PROGMEM odia_combo[] = {SE_U, SE_K, COMBO_END};
+
+combo_t key_combos[COMBO_COUNT] = {
+	[WF_ARNG] = COMBO(arng_combo, SE_ARNG),
+	[EI_ADIA] = COMBO(adia_combo, SE_ADIA),
+	[UK_ODIA] = COMBO(odia_combo, SE_ODIA)
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+  [BASE] = LAYOUT_split_3x5_3(
+ // BASE
+  //,--------------------------------------------,                    ,--------------------------------------------.
+         SE_Q,    SE_W,    SE_F,    SE_P,    SE_B,                         SE_Y,    SE_L,    SE_U,    SE_K, SE_QUOT,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+        GUI_A,   ALT_R,   SFT_S,  CTRL_T,    SE_G,                         SE_M,   CTL_N,   SFT_E,   ALT_I,   GUI_O,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+         SE_Z,    SE_X,    SE_C,    SE_D,    SE_V,                         SE_J,    SE_H, SE_COMM,  SE_DOT, SE_MINS,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                  KC_ESC, NUM_SPC,  KC_TAB,     FN_ENT, SYM_BSP,  KC_DEL
+                             //`--------------------------'  '--------------------------'
+
+  ),
+
+
+  [MBO] = LAYOUT_split_3x5_3(
+  // Mouse
+  //,--------------------------------------------,                    ,--------------------------------------------.
+      _______, _______, _______, _______, _______,                      KC_BTN1, KC_BTN2, _______, _______, _______,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______,                      KC_BTN3, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______,                      _______, _______, _______, _______, _______,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                 _______, _______, _______,    _______, KC_BSPC, _______
+                             //`--------------------------'  '--------------------------'
+
+  ),
+
+  [SYM] = LAYOUT_split_3x5_3(
+  // Symbols
+  //,--------------------------------------------,                    ,--------------------------------------------.
+      SE_SECT, SE_ACUT, SE_SLSH, SE_TILD, _______,                      _______, SE_PIPE, SE_BSLS, SE_DIAE, SE_CIRC,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      SE_EXLM,  SE_DLR, SE_LPRN, SE_LBRC, _______,                      _______, SE_RBRC, SE_RPRN, SE_HASH, SE_QUES,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      _______, SE_PERC, SE_LCBR, SE_LABK, _______,                      _______, SE_RABK, SE_RCBR, SE_AMPR, _______,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                   SE_AT,  SE_EQL, SE_DQUO,    _______, _______, _______
+                             //`--------------------------'  '--------------------------'
+  ),
+
+  [NUM] = LAYOUT_split_3x5_3(
+  // Numbers
+  //,--------------------------------------------,                    ,--------------------------------------------.
+      _______, KC_MPRV, KC_MPLY, KC_MNXT, _______,                      _______,    SE_7,    SE_8,    SE_9, SE_QUOT,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      SE_PLUS, SE_MINS, SE_ASTR, SE_SLSH, SE_CIRC,                      _______,    SE_4,    SE_5,    SE_6, _______,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      _______, _______, KC_VOLD, KC_VOLU, _______,                       KC_SPC,    SE_1,    SE_2,    SE_3, _______,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                 _______, _______, _______,    SE_COMM,   SE_0,  SE_DOT
+                             //`--------------------------'  '--------------------------'
+  ),
+
+  [FN] = LAYOUT_split_3x5_3(
+  // FN
+  //,--------------------------------------------,                    ,--------------------------------------------.
+      _______, _______, _______, _______, _______,                      _______,   KC_F7,   KC_F8,   KC_F9,  KC_F10,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      KC_LEFT, KC_DOWN,   KC_UP, KC_RGHT, _______,                      _______,   KC_F4,   KC_F5,   KC_F6,  KC_F11,
+  //|--------+--------+--------+--------+--------|                    |--------+--------+--------+--------+--------|
+      _______, _______, _______, _______, _______,                      _______,   KC_F1,   KC_F2,   KC_F3,  KC_F12,
+  //|--------+--------+--------+--------+--------+--------|  |--------+--------+--------+--------+--------+--------|
+                                 KC_PSCR, KC_CAPS, _______,    _______, _______, _______
+                             //`--------------------------'  '--------------------------'
+  )
+};
diff --git a/keyboards/pierce/keymaps/durken1/rules.mk b/keyboards/pierce/keymaps/durken1/rules.mk
new file mode 100644
index 0000000000..bea18c02d1
--- /dev/null
+++ b/keyboards/pierce/keymaps/durken1/rules.mk
@@ -0,0 +1,4 @@
+EXTRAKEY_ENABLE = yes
+TRACKPOINT = yes
+AUTO_BUTTONS = yes
+COMBO_ENABLE = yes
diff --git a/keyboards/pierce/matrix.c b/keyboards/pierce/matrix.c
new file mode 100644
index 0000000000..5023024b8b
--- /dev/null
+++ b/keyboards/pierce/matrix.c
@@ -0,0 +1,43 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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 "quantum.h"
+#include "i2c_slave.h"
+
+#define MY_I2C_ADDRESS (0x20U << 1)
+
+void matrix_init_custom(void) {
+    i2c_slave_init(MY_I2C_ADDRESS);
+}
+
+
+bool matrix_scan_custom(matrix_row_t current_matrix[]) {
+    bool matrix_has_changed = false;
+    matrix_row_t current_row_value;
+
+    for (uint8_t current_row = 0; current_row < MATRIX_ROWS; current_row++) {
+        current_row_value = 0; // Start with empty row
+        current_row_value |= (((matrix_row_t)(i2c_slave_reg[current_row+4])) << 5); // Add left half scan
+        current_row_value |= ((matrix_row_t)i2c_slave_reg[current_row]); // Add right half scan
+
+        if (current_matrix[current_row] != current_row_value) {
+            matrix_has_changed = true;
+        }
+        current_matrix[current_row] = current_row_value;
+    }
+
+    return matrix_has_changed;
+}
diff --git a/keyboards/pierce/pierce.c b/keyboards/pierce/pierce.c
new file mode 100644
index 0000000000..085ca9cdec
--- /dev/null
+++ b/keyboards/pierce/pierce.c
@@ -0,0 +1,17 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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 "pierce.h"
diff --git a/keyboards/pierce/pierce.h b/keyboards/pierce/pierce.h
new file mode 100644
index 0000000000..edb4151740
--- /dev/null
+++ b/keyboards/pierce/pierce.h
@@ -0,0 +1,31 @@
+/* Copyright 2022 durken (https://github.com/durken1/)
+ *
+ * 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"
+
+#define LAYOUT_split_3x5_3( \
+	K00, K01, K02, K03, K04,	K05, K06, K07, K08, K09, \
+	K10, K11, K12, K13, K14,	K15, K16, K17, K18, K19, \
+	K20, K21, K22, K23, K24,	K25, K26, K27, K28, K29, \
+	            K32, K33, K34,    K35, K36, K37  \
+) { \
+	{ K00,  K01,  K02,  K03,  K04,  K05,  K06,  K07,  K08,  K09 }, \
+	{ K10,  K11,  K12,  K13,  K14,  K15,  K16,  K17,  K18,  K19 }, \
+	{ K20,  K21,  K22,  K23,  K24,  K25,  K26,  K27,  K28,  K29 }, \
+	{ KC_NO, KC_NO, K32,  K33,  K34,  K35,  K36,  K37,  KC_NO, KC_NO }  \
+}
diff --git a/keyboards/pierce/post_rules.mk b/keyboards/pierce/post_rules.mk
new file mode 100644
index 0000000000..e0360a3391
--- /dev/null
+++ b/keyboards/pierce/post_rules.mk
@@ -0,0 +1,11 @@
+ifeq ($(strip $(TRACKPOINT)), yes)
+  PS2_MOUSE_ENABLE = yes
+  PS2_USE_USART = yes
+  OPT_DEFS += -DUSART
+endif
+
+ifeq ($(strip $(AUTO_BUTTONS)), yes)
+  OPT_DEFS += -DAUTO_BUTTONS
+endif
+
+
diff --git a/keyboards/pierce/readme.md b/keyboards/pierce/readme.md
new file mode 100644
index 0000000000..351bacbfa0
--- /dev/null
+++ b/keyboards/pierce/readme.md
@@ -0,0 +1,27 @@
+# Pierce
+
+![Pierce](https://i.imgur.com/JOUH1UIh.jpeg)
+
+A modular wireless / semi-wireless split 36 key keyboard. Wireless version uses a dongle as a receiver for both halves while the semi-wireless version uses the wired half as a receiver for the wireless half.
+Supports MX, Choc V1 and Alps switches.
+
+ * Keyboard Maintainer: [durken1](https://github.com/durken1/)
+ * Hardware Supported: pierce 2.0
+ * Hardware Information: [pierce](https://github.com/durken1/pierce)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make pierce:default
+
+Flashing example for this keyboard:
+
+    make pierce:default:flash
+
+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).
+
+## Bootloader
+
+Enter the bootloader in 2 ways:
+
+* **Physical reset button**: Briefly press the button on the dongle / wired half
+* **Keycode in layout**: Press the key mapped to `RESET` if it is available
diff --git a/keyboards/pierce/rules.mk b/keyboards/pierce/rules.mk
new file mode 100644
index 0000000000..47546919a8
--- /dev/null
+++ b/keyboards/pierce/rules.mk
@@ -0,0 +1,24 @@
+# MCU name
+MCU = atmega32u4
+
+# Bootloader selection
+BOOTLOADER = atmel-dfu
+
+# Build Options
+#   change yes to no to disable
+#
+BOOTMAGIC_ENABLE = yes      # Enable Bootmagic Lite
+MOUSEKEY_ENABLE = yes       # Mouse keys
+EXTRAKEY_ENABLE = yes       # Audio control and System control
+CONSOLE_ENABLE = no         # Console for debug
+COMMAND_ENABLE = no         # Commands for debug and configuration
+NKRO_ENABLE = yes           # Enable N-Key Rollover
+BACKLIGHT_ENABLE = no       # Enable keyboard backlight functionality
+RGBLIGHT_ENABLE = no        # Enable keyboard RGB underglow
+AUDIO_ENABLE = no           # Audio output
+
+CUSTOM_MATRIX = lite
+SRC += matrix.c
+QUANTUM_LIB_SRC += i2c_slave.c
+
+LAYOUTS = split_3x5_3