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-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/config.h13
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/erkbd.c63
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/keyboard.json107
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/keymap.c52
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/rules.mk2
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/keymaps/default/keymap.json24
-rw-r--r--keyboards/handwired/erikpeyronson/erkbd/readme.md28
7 files changed, 289 insertions, 0 deletions
diff --git a/keyboards/handwired/erikpeyronson/erkbd/config.h b/keyboards/handwired/erikpeyronson/erkbd/config.h
new file mode 100644
index 0000000000..acbafbfaa7
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/config.h
@@ -0,0 +1,13 @@
+// Copyright 2025 Erik Peyronson @erikpeyronson
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#pragma once
+
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET
+#define RP2040_BOOTLOADER_DOUBLE_TAP_RESET_TIMEOUT 500U
+
+#define I2C_DRIVER I2CD1
+#define OLED_IC OLED_IC_SH1106
+#define OLED_COLUMN_OFFSET 2
+
+#define OLED_DISPLAY_128X64
diff --git a/keyboards/handwired/erikpeyronson/erkbd/erkbd.c b/keyboards/handwired/erikpeyronson/erkbd/erkbd.c
new file mode 100644
index 0000000000..af236df93c
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/erkbd.c
@@ -0,0 +1,63 @@
+// Copyright 2025 Erik Peyronson @erikpeyronson
+// SPDX-License-Identifier: GPL-3.0-or-later
+#include QMK_KEYBOARD_H
+
+static void oled_render_logo(void) {
+ // clang-format off
+ static const char PROGMEM qmk_logo[] = {
+ 0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87, 0x88, 0x89, 0x8A, 0x8B, 0x8C, 0x8D, 0x8E, 0x8F, 0x90, 0x91, 0x92, 0x93, 0x94,
+ 0xA0, 0xA1, 0xA2, 0xA3, 0xA4, 0xA5, 0xA6, 0xA7, 0xA8, 0xA9, 0xAA, 0xAB, 0xAC, 0xAD, 0xAE, 0xAF, 0xB0, 0xB1, 0xB2, 0xB3, 0xB4,
+ 0xC0, 0xC1, 0xC2, 0xC3, 0xC4, 0xC5, 0xC6, 0xC7, 0xC8, 0xC9, 0xCA, 0xCB, 0xCC, 0xCD, 0xCE, 0xCF, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0x00
+ };
+ // clang-format on
+
+ oled_write_P(qmk_logo, false);
+}
+
+static void render_layer(void) {
+ oled_write_P(PSTR("Layer: "), false);
+ oled_write_ln(get_u8_str(get_highest_layer(layer_state), ' '), false);
+}
+
+static void render_locks(void) {
+ led_t led_config = host_keyboard_led_state();
+ oled_write_P(PSTR("Caps "), led_config.caps_lock);
+ oled_write_P(PSTR("Scrl "), led_config.scroll_lock);
+ oled_write_P(PSTR("Num "), led_config.num_lock);
+#ifdef CAPS_WORD_ENABLE
+ oled_write_P(PSTR("Word "), is_caps_word_on());
+#endif
+ oled_advance_page(true);
+}
+
+static void render_mods(void) {
+ uint8_t mod_state = get_mods();
+ oled_write_P("Ctrl ", mod_state & MOD_MASK_CTRL);
+ oled_write_P("Shift ", mod_state & MOD_MASK_SHIFT);
+ oled_write_P("Alt ", mod_state & MOD_MASK_ALT);
+ oled_write_P("Gui", mod_state & MOD_MASK_GUI);
+ oled_advance_page(true);
+}
+
+static void render_delimeter(void) {
+ oled_write_ln_P(PSTR("------------------"), false);
+}
+
+bool oled_task_kb(void) {
+ if (!oled_task_user()) {
+ return false;
+ }
+ if (is_keyboard_left()) {
+ oled_render_logo();
+ } else {
+ render_delimeter();
+ render_locks();
+ render_delimeter();
+ render_mods();
+ render_delimeter();
+ render_layer();
+ render_delimeter();
+ }
+
+ return false;
+}
diff --git a/keyboards/handwired/erikpeyronson/erkbd/keyboard.json b/keyboards/handwired/erikpeyronson/erkbd/keyboard.json
new file mode 100644
index 0000000000..d3ef5147f4
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/keyboard.json
@@ -0,0 +1,107 @@
+{
+ "manufacturer": "Erik Peyronson",
+ "keyboard_name": "erkbd",
+ "maintainer": "erikpeyronson",
+ "bootloader": "rp2040",
+ "bootloader_instructions": "Double tap the reset button on the controller board if accessable. If not hold down bootmagic key while powering on. Left side: row 0 column 0. (The tab key on regular keyboard). Right side: row 5 column 4 (the Backspace key on regular keyboard)",
+ "diode_direction": "COL2ROW",
+ "encoder": {
+ "rotary": [
+ {"pin_a": "GP7", "pin_b": "GP8"}
+ ]
+ },
+ "features": {
+ "bootmagic": true,
+ "encoder": true,
+ "oled": true
+ },
+ "matrix_pins": {
+ "cols": ["GP8", "GP9", "GP10", "GP11", "GP12", "GP13"],
+ "rows": ["GP4", "GP5", "GP6", "GP7"]
+ },
+ "processor": "RP2040",
+ "split": {
+ "bootmagic": {
+ "matrix": [4, 5]
+ },
+ "enabled": true,
+ "encoder": {
+ "right": {
+ "rotary": [
+ {"pin_a": "GP7", "pin_b": "GP8"}
+ ]
+ }
+ },
+ "handedness": {
+ "pin": "GP1"
+ },
+ "matrix_pins": {
+ "right": {
+ "cols": ["GP9", "GP10", "GP11", "GP12", "GP13", "GP14"],
+ "rows": ["GP28", "GP27", "GP26", "GP15"]
+ }
+ },
+ "serial": {
+ "driver": "vendor",
+ "pin": "GP0"
+ }
+ },
+ "url": "https://github.com/erikpeyronson/erkbd",
+ "usb": {
+ "device_version": "1.0.0",
+ "pid": "0x1234",
+ "vid": "0xFEED"
+ },
+ "layouts": {
+ "LAYOUT_split_3x6_5": {
+ "layout": [
+ {"matrix": [0, 0], "x": 0, "y": 0.4},
+ {"matrix": [0, 1], "x": 1, "y": 0.3},
+ {"matrix": [0, 2], "x": 2, "y": 0.1},
+ {"matrix": [0, 3], "x": 3, "y": 0},
+ {"matrix": [0, 4], "x": 4, "y": 0.1},
+ {"matrix": [0, 5], "x": 5, "y": 0.2},
+ {"matrix": [4, 0], "x": 9, "y": 0.2},
+ {"matrix": [4, 1], "x": 10, "y": 0.1},
+ {"matrix": [4, 2], "x": 11, "y": 0},
+ {"matrix": [4, 3], "x": 12, "y": 0.1},
+ {"matrix": [4, 4], "x": 13, "y": 0.3},
+ {"matrix": [4, 5], "x": 14, "y": 0.4},
+ {"matrix": [1, 0], "x": 0, "y": 1.4},
+ {"matrix": [1, 1], "x": 1, "y": 1.3},
+ {"matrix": [1, 2], "x": 2, "y": 1.1},
+ {"matrix": [1, 3], "x": 3, "y": 1},
+ {"matrix": [1, 4], "x": 4, "y": 1.1},
+ {"matrix": [1, 5], "x": 5, "y": 1.2},
+ {"matrix": [5, 0], "x": 9, "y": 1.2},
+ {"matrix": [5, 1], "x": 10, "y": 1.1},
+ {"matrix": [5, 2], "x": 11, "y": 1},
+ {"matrix": [5, 3], "x": 12, "y": 1.1},
+ {"matrix": [5, 4], "x": 13, "y": 1.3},
+ {"matrix": [5, 5], "x": 14, "y": 1.4},
+ {"matrix": [2, 0], "x": 0, "y": 2.4},
+ {"matrix": [2, 1], "x": 1, "y": 2.3},
+ {"matrix": [2, 2], "x": 2, "y": 2.1},
+ {"matrix": [2, 3], "x": 3, "y": 2},
+ {"matrix": [2, 4], "x": 4, "y": 2.1},
+ {"matrix": [2, 5], "x": 5, "y": 2.2},
+ {"matrix": [6, 0], "x": 9, "y": 2.2},
+ {"matrix": [6, 1], "x": 10, "y": 2.1},
+ {"matrix": [6, 2], "x": 11, "y": 2},
+ {"matrix": [6, 3], "x": 12, "y": 2.1},
+ {"matrix": [6, 4], "x": 13, "y": 2.3},
+ {"matrix": [6, 5], "x": 14, "y": 2.4},
+ {"matrix": [3, 1], "x": 3, "y": 3.4},
+ {"matrix": [3, 2], "x": 4, "y": 3.4},
+ {"matrix": [3, 3], "x": 5, "y": 3.5},
+ {"matrix": [3, 4], "x": 6, "y": 3.7},
+ {"matrix": [3, 5], "x": 6, "y": 2.7},
+ {"matrix": [7, 0], "x": 8, "y": 2.7},
+ {"matrix": [7, 1], "x": 8, "y": 3.7},
+ {"matrix": [7, 2], "x": 9, "y": 3.5},
+ {"matrix": [7, 3], "x": 10, "y": 3.4},
+ {"matrix": [7, 4], "x": 11, "y": 3.4}
+ ]
+ }
+ }
+}
diff --git a/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/keymap.c b/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/keymap.c
new file mode 100644
index 0000000000..8884702c81
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/keymap.c
@@ -0,0 +1,52 @@
+// Copyright 2025 Qmk, Erik Peyronson @erikpeyronson
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+// NOTE: This keymap is for debugging purposes to have firmware to test the matrix when building the keyboard. If you intend to build this keyboard
+// you should copy this to your fork or userspace repository and create your own.
+
+#include QMK_KEYBOARD_H
+
+// clang-format off
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT_split_3x6_5(
+ KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSPC,
+ KC_LCTL, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT,
+ 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_LBRC, KC_RBRC, KC_LGUI, KC_BSPC, KC_SPC, KC_SPC, KC_ENT, KC_RALT, KC_LPRN, KC_RPRN
+ )
+};
+// clang-format on
+
+void keyboard_post_init_user(void) {
+#ifdef CONSOLE_ENABLE
+ debug_enable = true;
+ debug_matrix = true;
+#endif
+}
+
+bool process_record_user(uint16_t keycode, keyrecord_t *record) {
+ // If console is enabled, it will print the matrix position and status of each key pressed
+#ifdef CONSOLE_ENABLE
+ uprintf("KL: kc: 0x%04X, col: %2u, row: %2u, pressed: %u, time: %5u, int: %u, count: %u\n", keycode, record->event.key.col, record->event.key.row, record->event.pressed, record->event.time, record->tap.interrupted, record->tap.count);
+#endif
+ return true;
+}
+
+// This function prints which half the keyboard considers itself to be which is
+// useful for verify if the handedness pin and display is correctly set up when building
+#ifdef OLED_ENABLE
+bool oled_task_user(void) {
+ if (is_keyboard_left()) {
+ oled_write_P(PSTR("left"), false);
+ } else {
+ oled_write_P(PSTR("right"), false);
+ }
+ return false;
+}
+#endif
+
+#ifdef ENCODER_MAP_ENABLE
+const uint16_t PROGMEM encoder_map[][NUM_ENCODERS][NUM_DIRECTIONS] = {
+ [0] = {ENCODER_CCW_CW(KC_UP, KC_DOWN), ENCODER_CCW_CW(KC_RIGHT, KC_LEFT)}
+};
+#endif
diff --git a/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/rules.mk b/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/rules.mk
new file mode 100644
index 0000000000..14094ea22c
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/keymaps/debug/rules.mk
@@ -0,0 +1,2 @@
+ENCODER_MAP_ENABLE = yes
+CONSOLE_ENABLE = yes
diff --git a/keyboards/handwired/erikpeyronson/erkbd/keymaps/default/keymap.json b/keyboards/handwired/erikpeyronson/erkbd/keymaps/default/keymap.json
new file mode 100644
index 0000000000..0b733d9fb6
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/keymaps/default/keymap.json
@@ -0,0 +1,24 @@
+{
+ "keyboard": "handwired/erikpeyronson/erkbd",
+ "keymap": "default",
+ "layout": "LAYOUT_split_3x6_5",
+ "layers": [
+ [
+ "KC_TAB", "KC_Q", "KC_W", "KC_E", "KC_R", "KC_T", "KC_Y", "KC_U", "KC_I", "KC_O", "KC_P", "KC_BSPC",
+ "KC_LCTL", "KC_A", "KC_S", "KC_D", "KC_F", "KC_G", "KC_H", "KC_J", "KC_K", "KC_L", "KC_SCLN", "KC_QUOT",
+ "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_LBRC", "KC_RBRC", "KC_LGUI", "KC_BSPC", "KC_SPC", "KC_SPC", "KC_ENT", "KC_RALT", "KC_LPRN", "KC_RPRN"
+ ]
+ ],
+ "config": {
+ "features": {
+ "encoder_map": true
+ }
+ },
+ "encoders": [
+ [
+ { "ccw": "KC_UP", "cw": "KC_DOWN" },
+ { "ccw": "KC_RIGHT", "cw": "KC_LEFT" }
+ ]
+ ]
+}
diff --git a/keyboards/handwired/erikpeyronson/erkbd/readme.md b/keyboards/handwired/erikpeyronson/erkbd/readme.md
new file mode 100644
index 0000000000..3f4fe0175e
--- /dev/null
+++ b/keyboards/handwired/erikpeyronson/erkbd/readme.md
@@ -0,0 +1,28 @@
+# handwired/erikpeyronson/erkbd
+
+![Erkbd](https://i.imgur.com/VViiXIN.jpeg)
+
+3D printed, handwired 44 key split keyboard featuring two encoders, two 1.3" 128x64 oled displays using the waveshare rp2040zero development board.
+
+* Keyboard Maintainer: [Erik Peyronson](https://github.com/erikpeyronson)
+* Hardware Supported: See keyboard repository on [github](https://github.com/erikpeyronson/erkbd)
+* Hardware Availability: See keyboard repository on [github](https://github.com/erikpeyronson/erkbd)
+
+Make example for this keyboard (after setting up your build environment):
+
+ make handwired/erikpeyronson/erkbd:default
+
+Flashing example for this keyboard:
+
+ Enter bootloader, drag and drop .uft2 file on the removable storage
+
+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 3 ways:
+
+* **Bootmagic reset**: For left half hold down the key at (0,0) in the matrix (correspons with the tab key) and plug in the keyboard.
+For left half half the key is (4,5) (corresponds with the backspace key)
+* **Physical reset button**: Briefly press the button on the back of the PCB - some may have pads you must short instead
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available
+Enter the bootloader in 3 ways: