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-rw-r--r--keyboards/pierce/config.h36
-rw-r--r--keyboards/pierce/info.json50
-rw-r--r--keyboards/pierce/keymaps/default/keymap.c37
-rw-r--r--keyboards/pierce/keymaps/default/rules.mk2
-rw-r--r--keyboards/pierce/keymaps/durken1/config.h77
-rw-r--r--keyboards/pierce/keymaps/durken1/keymap.c159
-rw-r--r--keyboards/pierce/keymaps/durken1/rules.mk4
-rw-r--r--keyboards/pierce/matrix.c43
-rw-r--r--keyboards/pierce/pierce.c17
-rw-r--r--keyboards/pierce/pierce.h31
-rw-r--r--keyboards/pierce/post_rules.mk11
-rw-r--r--keyboards/pierce/readme.md27
-rw-r--r--keyboards/pierce/rules.mk24
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