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-rw-r--r--keyboards/keebio/foldkb/rev2_1/config.h17
-rw-r--r--keyboards/keebio/foldkb/rev2_1/halconf.h10
-rw-r--r--keyboards/keebio/foldkb/rev2_1/keyboard.json279
-rw-r--r--keyboards/keebio/foldkb/rev2_1/keymaps/default/keymap.c21
-rw-r--r--keyboards/keebio/foldkb/rev2_1/mcuconf.h14
-rw-r--r--keyboards/keebio/foldkb/rev2_1/rev2_1.c29
6 files changed, 370 insertions, 0 deletions
diff --git a/keyboards/keebio/foldkb/rev2_1/config.h b/keyboards/keebio/foldkb/rev2_1/config.h
new file mode 100644
index 0000000000..d28027392d
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/config.h
@@ -0,0 +1,17 @@
+// Copyright 2025 Keebio (@keebio)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+/* Defines for the split keyboard setup */
+#define SERIAL_USART_TX_PIN A9
+#define SERIAL_USART_RX_PIN A10
+#define SERIAL_USART_FULL_DUPLEX
+#define SERIAL_USART_PIN_SWAP
+
+#define USB_VBUS_PIN A7
+
+/* Defines for the RGB matrix */
+#define WS2812_PWM_DRIVER PWMD3
+#define WS2812_PWM_CHANNEL 3
+#define WS2812_DMAMUX_ID STM32_DMAMUX1_TIM3_UP
diff --git a/keyboards/keebio/foldkb/rev2_1/halconf.h b/keyboards/keebio/foldkb/rev2_1/halconf.h
new file mode 100644
index 0000000000..ce1dfd06d7
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/halconf.h
@@ -0,0 +1,10 @@
+// Copyright 2025 Keebio (@keebio)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_SERIAL TRUE
+
+#define HAL_USE_PWM TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/keebio/foldkb/rev2_1/keyboard.json b/keyboards/keebio/foldkb/rev2_1/keyboard.json
new file mode 100644
index 0000000000..fc2eafe431
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/keyboard.json
@@ -0,0 +1,279 @@
+{
+ "keyboard_name": "FoldKB Rev. 2.1",
+ "bootloader": "stm32-dfu",
+ "diode_direction": "COL2ROW",
+ "encoder": {
+ "rotary": [
+ {"pin_a": "A4", "pin_b": "A3"}
+ ]
+ },
+ "features": {
+ "bootmagic": true,
+ "encoder": true,
+ "extrakey": true,
+ "mousekey": true,
+ "rgb_matrix": true
+ },
+ "matrix_pins": {
+ "cols": ["A6", "A15", "B3", "B4", "B5", "B6", "B7", "F0"],
+ "rows": ["A5", "A0", "A1", "A2", "F1"]
+ },
+ "processor": "STM32G431",
+ "rgb_matrix": {
+ "animations": {
+ "alphas_mods": true,
+ "band_pinwheel_sat": true,
+ "band_pinwheel_val": true,
+ "band_sat": true,
+ "band_spiral_sat": true,
+ "band_spiral_val": true,
+ "band_val": true,
+ "breathing": true,
+ "cycle_all": true,
+ "cycle_left_right": true,
+ "cycle_out_in": true,
+ "cycle_out_in_dual": true,
+ "cycle_pinwheel": true,
+ "cycle_spiral": true,
+ "cycle_up_down": true,
+ "digital_rain": true,
+ "dual_beacon": true,
+ "flower_blooming": true,
+ "gradient_left_right": true,
+ "gradient_up_down": true,
+ "hue_breathing": true,
+ "hue_pendulum": true,
+ "hue_wave": true,
+ "jellybean_raindrops": true,
+ "multisplash": true,
+ "pixel_flow": true,
+ "pixel_fractal": true,
+ "pixel_rain": true,
+ "rainbow_beacon": true,
+ "rainbow_moving_chevron": true,
+ "rainbow_pinwheels": true,
+ "raindrops": true,
+ "riverflow": true,
+ "solid_multisplash": true,
+ "solid_reactive": true,
+ "solid_reactive_cross": true,
+ "solid_reactive_multicross": true,
+ "solid_reactive_multinexus": true,
+ "solid_reactive_multiwide": true,
+ "solid_reactive_nexus": true,
+ "solid_reactive_simple": true,
+ "solid_reactive_wide": true,
+ "solid_splash": true,
+ "splash": true,
+ "starlight": true,
+ "starlight_dual_hue": true,
+ "starlight_dual_sat": true,
+ "starlight_smooth": true,
+ "typing_heatmap": true
+ },
+ "driver": "ws2812",
+ "layout": [
+ {"matrix": [0, 1], "x": 17, "y": 0, "flags": 4},
+ {"matrix": [0, 2], "x": 31, "y": 0, "flags": 4},
+ {"matrix": [0, 3], "x": 45, "y": 0, "flags": 4},
+ {"matrix": [0, 4], "x": 59, "y": 0, "flags": 4},
+ {"matrix": [0, 5], "x": 72, "y": 0, "flags": 4},
+ {"matrix": [0, 6], "x": 86, "y": 0, "flags": 4},
+ {"matrix": [0, 7], "x": 100, "y": 0, "flags": 4},
+ {"matrix": [1, 7], "x": 100, "y": 16, "flags": 4},
+ {"matrix": [1, 6], "x": 86, "y": 16, "flags": 4},
+ {"matrix": [1, 5], "x": 72, "y": 16, "flags": 4},
+ {"matrix": [1, 4], "x": 59, "y": 16, "flags": 4},
+ {"matrix": [1, 3], "x": 45, "y": 16, "flags": 4},
+ {"matrix": [1, 2], "x": 28, "y": 16, "flags": 4},
+ {"matrix": [2, 2], "x": 26, "y": 32, "flags": 4},
+ {"matrix": [2, 3], "x": 45, "y": 32, "flags": 4},
+ {"matrix": [2, 4], "x": 59, "y": 32, "flags": 4},
+ {"matrix": [2, 5], "x": 72, "y": 32, "flags": 4},
+ {"matrix": [2, 6], "x": 86, "y": 32, "flags": 4},
+ {"matrix": [2, 7], "x": 100, "y": 32, "flags": 4},
+ {"matrix": [3, 7], "x": 100, "y": 48, "flags": 4},
+ {"matrix": [3, 6], "x": 86, "y": 48, "flags": 4},
+ {"matrix": [3, 5], "x": 72, "y": 48, "flags": 4},
+ {"matrix": [3, 4], "x": 59, "y": 48, "flags": 4},
+ {"matrix": [3, 3], "x": 45, "y": 48, "flags": 4},
+ {"matrix": [3, 2], "x": 22, "y": 48, "flags": 4},
+ {"matrix": [0, 0], "x": 0, "y": 0, "flags": 4},
+ {"matrix": [1, 0], "x": 0, "y": 16, "flags": 4},
+ {"matrix": [2, 0], "x": 0, "y": 32, "flags": 4},
+ {"matrix": [3, 0], "x": 0, "y": 48, "flags": 4},
+ {"matrix": [4, 0], "x": 0, "y": 64, "flags": 4},
+ {"matrix": [4, 2], "x": 22, "y": 64, "flags": 4},
+ {"matrix": [4, 3], "x": 40, "y": 64, "flags": 4},
+ {"matrix": [4, 4], "x": 57, "y": 64, "flags": 4},
+ {"matrix": [4, 5], "x": 72, "y": 64, "flags": 4},
+ {"matrix": [4, 6], "x": 86, "y": 64, "flags": 4},
+ {"matrix": [4, 7], "x": 100, "y": 64, "flags": 4},
+ {"x": 93, "y": 48, "flags": 2},
+ {"x": 65, "y": 64, "flags": 2},
+ {"x": 31, "y": 64, "flags": 2},
+ {"x": 10, "y": 64, "flags": 2},
+ {"x": 0, "y": 24, "flags": 2},
+ {"x": 24, "y": 0, "flags": 2},
+ {"x": 65, "y": 0, "flags": 2},
+ {"x": 90, "y": 8, "flags": 2},
+ {"matrix": [5, 7], "x": 221, "y": 0, "flags": 4},
+ {"matrix": [5, 6], "x": 207, "y": 0, "flags": 4},
+ {"matrix": [5, 5], "x": 193, "y": 0, "flags": 4},
+ {"matrix": [5, 4], "x": 179, "y": 0, "flags": 4},
+ {"matrix": [5, 3], "x": 165, "y": 0, "flags": 4},
+ {"matrix": [5, 2], "x": 152, "y": 0, "flags": 4},
+ {"matrix": [5, 1], "x": 138, "y": 0, "flags": 4},
+ {"matrix": [5, 0], "x": 124, "y": 0, "flags": 4},
+ {"matrix": [6, 0], "x": 124, "y": 16, "flags": 4},
+ {"matrix": [6, 1], "x": 138, "y": 16, "flags": 4},
+ {"matrix": [6, 2], "x": 152, "y": 16, "flags": 4},
+ {"matrix": [6, 3], "x": 165, "y": 16, "flags": 4},
+ {"matrix": [6, 4], "x": 179, "y": 16, "flags": 4},
+ {"matrix": [6, 5], "x": 193, "y": 16, "flags": 4},
+ {"matrix": [6, 6], "x": 207, "y": 16, "flags": 4},
+ {"matrix": [6, 7], "x": 224, "y": 16, "flags": 4},
+ {"matrix": [7, 7], "x": 215, "y": 32, "flags": 4},
+ {"matrix": [7, 5], "x": 193, "y": 32, "flags": 4},
+ {"matrix": [7, 4], "x": 179, "y": 32, "flags": 4},
+ {"matrix": [7, 3], "x": 165, "y": 32, "flags": 4},
+ {"matrix": [7, 2], "x": 152, "y": 32, "flags": 4},
+ {"matrix": [7, 1], "x": 138, "y": 32, "flags": 4},
+ {"matrix": [7, 0], "x": 124, "y": 32, "flags": 4},
+ {"matrix": [8, 0], "x": 124, "y": 48, "flags": 4},
+ {"matrix": [8, 1], "x": 138, "y": 48, "flags": 4},
+ {"matrix": [8, 2], "x": 152, "y": 48, "flags": 4},
+ {"matrix": [8, 3], "x": 165, "y": 48, "flags": 4},
+ {"matrix": [8, 4], "x": 179, "y": 48, "flags": 4},
+ {"matrix": [8, 5], "x": 198, "y": 48, "flags": 4},
+ {"matrix": [8, 7], "x": 217, "y": 48, "flags": 4},
+ {"matrix": [9, 7], "x": 215, "y": 64, "flags": 4},
+ {"matrix": [9, 5], "x": 198, "y": 64, "flags": 4},
+ {"matrix": [9, 4], "x": 181, "y": 64, "flags": 4},
+ {"matrix": [9, 3], "x": 164, "y": 64, "flags": 4},
+ {"matrix": [9, 1], "x": 145, "y": 64, "flags": 4},
+ {"matrix": [9, 0], "x": 136, "y": 64, "flags": 4},
+ {"matrix": [9, 0], "x": 126, "y": 64, "flags": 4},
+ {"x": 121, "y": 56, "flags": 2},
+ {"x": 152, "y": 64, "flags": 2},
+ {"x": 207, "y": 64, "flags": 2},
+ {"x": 224, "y": 52, "flags": 2},
+ {"x": 224, "y": 12, "flags": 2},
+ {"x": 196, "y": 0, "flags": 2},
+ {"x": 159, "y": 0, "flags": 2},
+ {"x": 124, "y": 8, "flags": 2}
+ ],
+ "max_brightness": 120,
+ "sleep": true,
+ "split_count": [44, 45]
+ },
+ "split": {
+ "bootmagic": {
+ "matrix": [5, 7]
+ },
+ "enabled": true,
+ "handedness": {
+ "pin": "A8"
+ },
+ "matrix_pins": {
+ "right": {
+ "cols": ["A6", "A5", "A4", "A3", "A2", "B5", "B6", "B7"],
+ "rows": ["A15", "B3", "B4", "A0", "A1"]
+ }
+ },
+ "serial": {
+ "driver": "usart"
+ },
+ "transport": {
+ "sync": {
+ "matrix_state": true
+ }
+ }
+ },
+ "usb": {
+ "device_version": "2.0.0",
+ "pid": "0x2358"
+ },
+ "ws2812": {
+ "driver": "pwm",
+ "pin": "B0"
+ },
+ "layouts": {
+ "LAYOUT": {
+ "layout": [
+ {"matrix": [0, 0], "x": 0, "y": 0},
+ {"matrix": [0, 1], "x": 1.25, "y": 0},
+ {"matrix": [0, 2], "x": 2.25, "y": 0},
+ {"matrix": [0, 3], "x": 3.25, "y": 0},
+ {"matrix": [0, 4], "x": 4.25, "y": 0},
+ {"matrix": [0, 5], "x": 5.25, "y": 0},
+ {"matrix": [0, 6], "x": 6.25, "y": 0},
+ {"matrix": [0, 7], "x": 7.25, "y": 0},
+ {"matrix": [5, 0], "x": 9, "y": 0},
+ {"matrix": [5, 1], "x": 10, "y": 0},
+ {"matrix": [5, 2], "x": 11, "y": 0},
+ {"matrix": [5, 3], "x": 12, "y": 0},
+ {"matrix": [5, 4], "x": 13, "y": 0},
+ {"matrix": [5, 5], "x": 14, "y": 0},
+ {"matrix": [5, 6], "x": 15, "y": 0},
+ {"matrix": [5, 7], "x": 16, "y": 0},
+ {"matrix": [1, 0], "x": 0, "y": 1},
+ {"matrix": [1, 2], "x": 1.75, "y": 1, "w": 1.5},
+ {"matrix": [1, 3], "x": 3.25, "y": 1},
+ {"matrix": [1, 4], "x": 4.25, "y": 1},
+ {"matrix": [1, 5], "x": 5.25, "y": 1},
+ {"matrix": [1, 6], "x": 6.25, "y": 1},
+ {"matrix": [1, 7], "x": 7.25, "y": 1},
+ {"matrix": [6, 0], "x": 9, "y": 1},
+ {"matrix": [6, 1], "x": 10, "y": 1},
+ {"matrix": [6, 2], "x": 11, "y": 1},
+ {"matrix": [6, 3], "x": 12, "y": 1},
+ {"matrix": [6, 4], "x": 13, "y": 1},
+ {"matrix": [6, 5], "x": 14, "y": 1},
+ {"matrix": [6, 6], "x": 15, "y": 1},
+ {"matrix": [6, 7], "x": 16, "y": 1, "w": 1.5},
+ {"matrix": [2, 0], "x": 0, "y": 2},
+ {"matrix": [2, 2], "x": 1.5, "y": 2, "w": 1.75},
+ {"matrix": [2, 3], "x": 3.25, "y": 2},
+ {"matrix": [2, 4], "x": 4.25, "y": 2},
+ {"matrix": [2, 5], "x": 5.25, "y": 2},
+ {"matrix": [2, 6], "x": 6.25, "y": 2},
+ {"matrix": [2, 7], "x": 7.25, "y": 2},
+ {"matrix": [7, 0], "x": 9, "y": 2},
+ {"matrix": [7, 1], "x": 10, "y": 2},
+ {"matrix": [7, 2], "x": 11, "y": 2},
+ {"matrix": [7, 3], "x": 12, "y": 2},
+ {"matrix": [7, 4], "x": 13, "y": 2},
+ {"matrix": [7, 5], "x": 14, "y": 2},
+ {"matrix": [7, 7], "x": 15, "y": 2, "w": 2.25},
+ {"matrix": [3, 0], "x": 0, "y": 3},
+ {"matrix": [3, 2], "x": 1, "y": 3, "w": 2.25},
+ {"matrix": [3, 3], "x": 3.25, "y": 3},
+ {"matrix": [3, 4], "x": 4.25, "y": 3},
+ {"matrix": [3, 5], "x": 5.25, "y": 3},
+ {"matrix": [3, 6], "x": 6.25, "y": 3},
+ {"matrix": [3, 7], "x": 7.25, "y": 3},
+ {"matrix": [8, 0], "x": 9, "y": 3},
+ {"matrix": [8, 1], "x": 10, "y": 3},
+ {"matrix": [8, 2], "x": 11, "y": 3},
+ {"matrix": [8, 3], "x": 12, "y": 3},
+ {"matrix": [8, 4], "x": 13, "y": 3},
+ {"matrix": [8, 5], "x": 14, "y": 3, "w": 1.75},
+ {"matrix": [8, 7], "x": 15.75, "y": 3},
+ {"matrix": [4, 0], "x": 0, "y": 4},
+ {"matrix": [4, 2], "x": 1.5, "y": 4, "w": 1.25},
+ {"matrix": [4, 3], "x": 2.75, "y": 4, "w": 1.25},
+ {"matrix": [4, 4], "x": 4, "y": 4, "w": 1.25},
+ {"matrix": [4, 5], "x": 5.25, "y": 4},
+ {"matrix": [4, 6], "x": 6.25, "y": 4},
+ {"matrix": [4, 7], "x": 7.25, "y": 4},
+ {"matrix": [9, 0], "x": 9, "y": 4, "w": 1.25},
+ {"matrix": [9, 1], "x": 10.25, "y": 4, "w": 1.5},
+ {"matrix": [9, 3], "x": 11.75, "y": 4, "w": 1.25},
+ {"matrix": [9, 4], "x": 13, "y": 4, "w": 1.25},
+ {"matrix": [9, 5], "x": 14.25, "y": 4, "w": 1.25},
+ {"matrix": [9, 7], "x": 15.5, "y": 4, "w": 1.25}
+ ]
+ }
+ }
+}
diff --git a/keyboards/keebio/foldkb/rev2_1/keymaps/default/keymap.c b/keyboards/keebio/foldkb/rev2_1/keymaps/default/keymap.c
new file mode 100644
index 0000000000..bf3f325446
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/keymaps/default/keymap.c
@@ -0,0 +1,21 @@
+// Copyright 2025 Keebio (@keebio)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include QMK_KEYBOARD_H
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+ [0] = LAYOUT(
+ KC_MUTE, KC_ESC, KC_GRV, KC_1, KC_2, KC_3, KC_4, KC_5, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINS, KC_EQL, KC_BSPC,
+ KC_HOME, KC_TAB, KC_Q, KC_W, KC_E, KC_R, KC_T, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_LBRC, KC_RBRC, KC_BSLS,
+ KC_END, KC_CAPS, KC_A, KC_S, KC_D, KC_F, KC_G, KC_H, KC_J, KC_K, KC_L, KC_SCLN, KC_QUOT, KC_ENT,
+ KC_PGUP, KC_LSFT, KC_Z, KC_X, KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT, KC_SLSH, KC_RSFT, MO(1),
+ KC_PGDN, KC_LCTL, KC_LGUI, KC_LALT, MO(1), KC_SPC, KC_SPC, KC_SPC, KC_SPC, KC_RALT, KC_RGUI, KC_MENU, KC_RCTL
+ ),
+ [1] = LAYOUT(
+ KC_MUTE, QK_BOOT, KC_F12, KC_F1, KC_F2, KC_F3, KC_F4, KC_F5, KC_F6, KC_F7, KC_F8, KC_F9, KC_F10, KC_F11, _______, KC_DEL,
+ RM_TOGG, _______, RM_SATD, RM_SATU, _______, _______, _______, _______, KC_7, KC_8, KC_9, _______, _______, _______, _______,
+ RM_NEXT, _______, RM_VALD, RM_VALU, _______, _______, _______, _______, KC_4, KC_5, KC_6, _______, _______, _______,
+ KC_VOLU, _______, RM_HUED, RM_HUEU, _______, _______, _______, _______, KC_1, KC_2, KC_3, _______, _______, _______,
+ KC_VOLD, _______, RM_SPDD, RM_SPDU, _______, _______, _______, _______, KC_0, _______, _______, _______, _______
+ ),
+};
diff --git a/keyboards/keebio/foldkb/rev2_1/mcuconf.h b/keyboards/keebio/foldkb/rev2_1/mcuconf.h
new file mode 100644
index 0000000000..77847f5b2c
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/mcuconf.h
@@ -0,0 +1,14 @@
+// Copyright 2025 Keebio (@keebio)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+/* enable USART1, used for split comms */
+#undef STM32_SERIAL_USE_USART1
+#define STM32_SERIAL_USE_USART1 TRUE
+
+/* enable TIM3, used for RGB LED PWM driver */
+#undef STM32_PWM_USE_TIM3
+#define STM32_PWM_USE_TIM3 TRUE
diff --git a/keyboards/keebio/foldkb/rev2_1/rev2_1.c b/keyboards/keebio/foldkb/rev2_1/rev2_1.c
new file mode 100644
index 0000000000..0fc47b1483
--- /dev/null
+++ b/keyboards/keebio/foldkb/rev2_1/rev2_1.c
@@ -0,0 +1,29 @@
+// Copyright 2025 Keebio (@keebio)
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "quantum.h"
+
+void keyboard_pre_init_kb(void) {
+ // Disable the PD peripheral in pre-init because its pins are being used in the matrix:
+ PWR->CR3 |= PWR_CR3_UCPD_DBDIS;
+ // Call the corresponding _user() function (see https://docs.qmk.fm/#/custom_quantum_functions)
+ keyboard_pre_init_user();
+}
+
+bool encoder_update_kb(uint8_t index, bool clockwise) {
+ if (!encoder_update_user(index, clockwise)) { return false; }
+ if (index == 0) {
+ if (clockwise) {
+ tap_code(KC_VOLU);
+ } else {
+ tap_code(KC_VOLD);
+ }
+ } else if (index == 1) {
+ if (clockwise) {
+ tap_code(KC_PGDN);
+ } else {
+ tap_code(KC_PGUP);
+ }
+ }
+ return false;
+}