qmk · shieldsd · Aug 11, 2026
diff --git a/keyboards/keyboardio/model100/board.h b/keyboards/keyboardio/model100/board.h
@@ -0,0 +1,22 @@
+// Copyright 2025 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <board.h>
+
+/* The GD32F303CG is a high-density part with 1MB flash / 96KB RAM. The
+ * stm32duino board files default to the medium-density STM32F103xB; select the
+ * high-density variant so the correct memory map and peripherals are used. */
+#undef STM32F103xB
+#define STM32F103xE
+
+/* The Model 100 gates its USB D+ pull-up with a GPIO (PA8, active-high,
+ * push-pull) rather than a fixed resistor — confirmed from Keyboardio's DAPBoot
+ * config (HAVE_USB_PULLUP_CONTROL, USB_PULLUP_GPIO_PIN GPIO8). The stm32duino
+ * board default only floats PA12 (assumes a fixed pull-up), so without this the
+ * host never sees the device. Drive PA8 to (dis)connect from the bus. */
+#undef usb_lld_connect_bus
+#define usb_lld_connect_bus(usbp)    palSetPadMode(GPIOA, 8, PAL_MODE_OUTPUT_PUSHPULL); palSetPad(GPIOA, 8)
+#undef usb_lld_disconnect_bus
+#define usb_lld_disconnect_bus(usbp) palClearPad(GPIOA, 8)
diff --git a/keyboards/keyboardio/model100/config.h b/keyboards/keyboardio/model100/config.h
@@ -0,0 +1,42 @@
+/*
+Copyright 2018 James Laird-Wah
+Copyright 2025 QMK
+
+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
+
+/* key matrix size; rows are doubled for split */
+#define MATRIX_ROWS 8
+#define MATRIX_COLS 8
+
+/* The two ATtiny key scanners hang off I2C1 (B6/B7). They implement clock
+ * stretching, so a generous timeout is needed. */
+#define I2C1_SCL_PIN B6
+#define I2C1_SDA_PIN B7
+
+/* On-die flash EEPROM emulation for the GD32F303 (behaves as an STM32F103
+ * high-density part). */
+#define FEE_PAGE_SIZE 0x800
+#define FEE_PAGE_COUNT 4
+#define FEE_MCU_FLASH_SIZE_IGNORE_CHECK
+#define FEE_MCU_FLASH_SIZE 512
+
+/* RGB matrix: a coloured animation at a visible brightness on a fresh EEPROM.
+ * (on/hue/sat are left at their defaults — true/0/255 — since setting them
+ * explicitly duplicates the built-ins and the strict linter rejects that.) */
+#define RGB_MATRIX_DEFAULT_MODE RGB_MATRIX_CYCLE_LEFT_RIGHT
+#define RGB_MATRIX_DEFAULT_VAL 128
+#define RGB_MATRIX_MAXIMUM_BRIGHTNESS 200
diff --git a/keyboards/keyboardio/model100/halconf.h b/keyboards/keyboardio/model100/halconf.h
@@ -0,0 +1,21 @@
+/* Copyright 2025 QMK
+ *
+ * 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 HAL_USE_I2C TRUE
+
+#include_next <halconf.h>
diff --git a/keyboards/keyboardio/model100/keyboard.json b/keyboards/keyboardio/model100/keyboard.json
@@ -0,0 +1,282 @@
+{
+  "keyboard_name": "Model 100",
+  "manufacturer": "Keyboardio",
+  "url": "https://keyboard.io",
+  "maintainer": "qmk",
+  "usb": {
+    "vid": "0x3496",
+    "pid": "0x0006",
+    "device_version": "0.0.1"
+  },
+  "rgb_matrix": {
+    "animations": {
+      "alphas_mods": true,
+      "gradient_up_down": true,
+      "gradient_left_right": true,
+      "breathing": true,
+      "band_sat": true,
+      "band_val": true,
+      "band_pinwheel_sat": true,
+      "band_pinwheel_val": true,
+      "band_spiral_sat": true,
+      "band_spiral_val": true,
+      "cycle_all": true,
+      "cycle_left_right": true,
+      "cycle_up_down": true,
+      "rainbow_moving_chevron": true,
+      "cycle_out_in": true,
+      "cycle_out_in_dual": true,
+      "cycle_pinwheel": true,
+      "cycle_spiral": true,
+      "dual_beacon": true,
+      "rainbow_beacon": true,
+      "rainbow_pinwheels": true,
+      "raindrops": true,
+      "jellybean_raindrops": true,
+      "hue_breathing": true,
+      "hue_pendulum": true,
+      "hue_wave": true,
+      "pixel_rain": true,
+      "pixel_flow": true,
+      "pixel_fractal": true
+    },
+    "driver": "custom",
+    "layout": [
+        {"matrix": [3, 7], "x": 3, "y": 35, "flags": 4},
+        {"matrix": [2, 7], "x": 0, "y": 26, "flags": 4},
+        {"matrix": [1, 7], "x": 0, "y": 17, "flags": 4},
+        {"matrix": [0, 7], "x": 0, "y": 6, "flags": 4},
+        {"matrix": [0, 6], "x": 14, "y": 5, "flags": 4},
+        {"matrix": [1, 6], "x": 15, "y": 16, "flags": 4},
+        {"matrix": [2, 6], "x": 16, "y": 25, "flags": 4},
+        {"matrix": [3, 6], "x": 17, "y": 34, "flags": 4},
+        {"matrix": [3, 5], "x": 31, "y": 29, "flags": 4},
+        {"matrix": [2, 5], "x": 31, "y": 19, "flags": 4},
+        {"matrix": [1, 5], "x": 30, "y": 11, "flags": 4},
+        {"matrix": [0, 5], "x": 30, "y": 1, "flags": 4},
+        {"matrix": [0, 4], "x": 45, "y": 0, "flags": 4},
+        {"matrix": [1, 4], "x": 45, "y": 8, "flags": 4},
+        {"matrix": [2, 4], "x": 46, "y": 17, "flags": 4},
+        {"matrix": [3, 4], "x": 46, "y": 27, "flags": 4},
+        {"matrix": [3, 3], "x": 60, "y": 27, "flags": 4},
+        {"matrix": [2, 3], "x": 60, "y": 18, "flags": 4},
+        {"matrix": [1, 3], "x": 60, "y": 9, "flags": 4},
+        {"matrix": [0, 3], "x": 60, "y": 0, "flags": 4},
+        {"matrix": [0, 2], "x": 74, "y": 2, "flags": 4},
+        {"matrix": [1, 2], "x": 74, "y": 11, "flags": 4},
+        {"matrix": [2, 2], "x": 75, "y": 20, "flags": 4},
+        {"matrix": [3, 2], "x": 74, "y": 28, "flags": 4},
+        {"matrix": [2, 1], "x": 89, "y": 30, "flags": 4},
+        {"matrix": [1, 1], "x": 89, "y": 19, "flags": 4},
+        {"matrix": [0, 1], "x": 89, "y": 7, "flags": 4},
+        {"matrix": [0, 0], "x": 70, "y": 38, "flags": 1},
+        {"matrix": [1, 0], "x": 82, "y": 41, "flags": 1},
+        {"matrix": [2, 0], "x": 93, "y": 45, "flags": 1},
+        {"matrix": [3, 0], "x": 104, "y": 50, "flags": 1},
+        {"matrix": [3, 1], "x": 74, "y": 64, "flags": 1},
+        {"matrix": [7, 6], "x": 149, "y": 64, "flags": 1},
+        {"matrix": [7, 7], "x": 119, "y": 50, "flags": 1},
+        {"matrix": [6, 7], "x": 130, "y": 45, "flags": 1},
+        {"matrix": [5, 7], "x": 141, "y": 41, "flags": 1},
+        {"matrix": [4, 7], "x": 153, "y": 38, "flags": 1},
+        {"matrix": [4, 6], "x": 134, "y": 7, "flags": 4},
+        {"matrix": [5, 6], "x": 134, "y": 19, "flags": 4},
+        {"matrix": [6, 6], "x": 134, "y": 30, "flags": 4},
+        {"matrix": [7, 5], "x": 149, "y": 28, "flags": 4},
+        {"matrix": [6, 5], "x": 148, "y": 20, "flags": 4},
+        {"matrix": [5, 5], "x": 149, "y": 11, "flags": 4},
+        {"matrix": [4, 5], "x": 149, "y": 2, "flags": 4},
+        {"matrix": [4, 4], "x": 163, "y": 0, "flags": 4},
+        {"matrix": [5, 4], "x": 163, "y": 9, "flags": 4},
+        {"matrix": [6, 4], "x": 163, "y": 18, "flags": 4},
+        {"matrix": [7, 4], "x": 163, "y": 27, "flags": 4},
+        {"matrix": [7, 3], "x": 177, "y": 27, "flags": 4},
+        {"matrix": [6, 3], "x": 177, "y": 17, "flags": 4},
+        {"matrix": [5, 3], "x": 178, "y": 8, "flags": 4},
+        {"matrix": [4, 3], "x": 178, "y": 0, "flags": 4},
+        {"matrix": [4, 2], "x": 193, "y": 1, "flags": 4},
+        {"matrix": [5, 2], "x": 193, "y": 11, "flags": 4},
+        {"matrix": [6, 2], "x": 192, "y": 19, "flags": 4},
+        {"matrix": [7, 2], "x": 192, "y": 29, "flags": 4},
+        {"matrix": [7, 1], "x": 206, "y": 34, "flags": 4},
+        {"matrix": [6, 1], "x": 207, "y": 25, "flags": 4},
+        {"matrix": [5, 1], "x": 208, "y": 16, "flags": 4},
+        {"matrix": [4, 1], "x": 209, "y": 5, "flags": 4},
+        {"matrix": [4, 0], "x": 224, "y": 6, "flags": 4},
+        {"matrix": [5, 0], "x": 223, "y": 17, "flags": 4},
+        {"matrix": [6, 0], "x": 223, "y": 26, "flags": 4},
+        {"matrix": [7, 0], "x": 220, "y": 35, "flags": 4}
+    ]
+  },
+  "processor": "STM32F103",
+  "board": "STM32_F103_STM32DUINO",
+  "features": {
+    "bootmagic": false,
+    "mousekey": true,
+    "extrakey": true,
+    "console": true,
+    "rgb_matrix": true
+  },
+  "debounce": 0,
+  "layouts": {
+    "LAYOUT": {
+      "layout": [
+        {"matrix": [0, 7], "x": 0, "y": 0.4, "h": 1.3},
+        {"matrix": [0, 6], "x": 1, "y": 0.2, "h": 1.5},
+        {"matrix": [0, 5], "x": 2, "y": 0.1, "h": 1.1},
+        {"matrix": [0, 4], "x": 3, "y": 0},
+        {"matrix": [0, 3], "x": 4, "y": 0.1},
+        {"matrix": [0, 2], "x": 5, "y": 0.3},
+
+        {"matrix": [4, 5], "x": 12.5, "y": 0.3},
+        {"matrix": [4, 4], "x": 13.5, "y": 0.1},
+        {"matrix": [4, 3], "x": 14.5, "y": 0},
+        {"matrix": [4, 2], "x": 15.5, "y": 0.1, "h": 1.1},
+        {"matrix": [4, 1], "x": 16.5, "y": 0.2, "h": 1.5},
+        {"matrix": [4, 0], "x": 17.5, "y": 0.4, "h": 1.3},
+
+        {"matrix": [1, 7], "x": 0, "y": 1.7},
+        {"matrix": [1, 6], "x": 1, "y": 1.7},
+        {"matrix": [1, 5], "x": 2, "y": 1.2},
+        {"matrix": [1, 4], "x": 3, "y": 1},
+        {"matrix": [1, 3], "x": 4, "y": 1.1},
+        {"matrix": [1, 2], "x": 5, "y": 1.3},
+        {"matrix": [0, 1], "x": 6, "y": 0.6, "h": 1.5},
+
+        {"matrix": [4, 6], "x": 11.5, "y": 0.6, "h": 1.5},
+        {"matrix": [5, 5], "x": 12.5, "y": 1.3},
+        {"matrix": [5, 4], "x": 13.5, "y": 1.1},
+        {"matrix": [5, 3], "x": 14.5, "y": 1},
+        {"matrix": [5, 2], "x": 15.5, "y": 1.2},
+        {"matrix": [5, 1], "x": 16.5, "y": 1.7},
+        {"matrix": [5, 0], "x": 17.5, "y": 1.7},
+
+        {"matrix": [2, 7], "x": 0, "y": 2.7},
+        {"matrix": [2, 6], "x": 1, "y": 2.7},
+        {"matrix": [2, 5], "x": 2, "y": 2.2},
+        {"matrix": [2, 4], "x": 3, "y": 2},
+        {"matrix": [2, 3], "x": 4, "y": 2.1},
+        {"matrix": [2, 2], "x": 5, "y": 2.3},
+        {"matrix": [1, 1], "x": 6, "y": 2.1, "h": 1.3},
+
+        {"matrix": [5, 6], "x": 11.5, "y": 2.1, "h": 1.3},
+        {"matrix": [6, 5], "x": 12.5, "y": 2.3},
+        {"matrix": [6, 4], "x": 13.5, "y": 2.1},
+        {"matrix": [6, 3], "x": 14.5, "y": 2},
+        {"matrix": [6, 2], "x": 15.5, "y": 2.2},
+        {"matrix": [6, 1], "x": 16.5, "y": 2.7},
+        {"matrix": [6, 0], "x": 17.5, "y": 2.7},
+
+        {"matrix": [3, 7], "x": 0, "y": 3.7, "h": 1.2},
+        {"matrix": [3, 6], "x": 1, "y": 3.7},
+        {"matrix": [3, 5], "x": 2, "y": 3.2, "h": 1.15},
+        {"matrix": [3, 4], "x": 3, "y": 3},
+        {"matrix": [3, 3], "x": 4, "y": 3.1},
+        {"matrix": [3, 2], "x": 5, "y": 3.3},
+        {"matrix": [2, 1], "x": 6, "y": 3.4, "h": 1.1},
+
+        {"matrix": [6, 6], "x": 11.5, "y": 3.4, "h": 1.1},
+        {"matrix": [7, 5], "x": 12.5, "y": 3.3},
+        {"matrix": [7, 4], "x": 13.5, "y": 3.1},
+        {"matrix": [7, 3], "x": 14.5, "y": 3},
+        {"matrix": [7, 2], "x": 15.5, "y": 3.2, "h": 1.15},
+        {"matrix": [7, 1], "x": 16.5, "y": 3.7},
+        {"matrix": [7, 0], "x": 17.5, "y": 3.7, "h": 1.2},
+
+        {"matrix": [0, 0], "x": 4.75, "y": 4.3},
+        {"matrix": [4, 7], "x": 12.75, "y": 4.3},
+
+        {"matrix": [1, 0], "x": 5.75, "y": 4.5},
+        {"matrix": [5, 7], "x": 11.75, "y": 4.5},
+
+        {"matrix": [2, 0], "x": 6.75, "y": 4.7},
+        {"matrix": [6, 7], "x": 10.75, "y": 4.7},
+
+        {"matrix": [3, 0], "x": 7.75, "y": 5.1},
+        {"matrix": [7, 7], "x": 9.75, "y": 5.1},
+
+        {"matrix": [3, 1], "x": 6.25, "y": 6.1, "h": 1.4},
+        {"matrix": [7, 6], "x": 11.25, "y": 6.1, "h": 1.4}
+      ]
+    },
+    "LAYOUT_thumb_row": {
+      "layout": [
+        {"matrix": [0, 7], "x": 0, "y": 0.4, "h": 1.3},
+        {"matrix": [0, 6], "x": 1, "y": 0.2, "h": 1.5},
+        {"matrix": [0, 5], "x": 2, "y": 0.1, "h": 1.1},
+        {"matrix": [0, 4], "x": 3, "y": 0},
+        {"matrix": [0, 3], "x": 4, "y": 0.1},
+        {"matrix": [0, 2], "x": 5, "y": 0.3},
+
+        {"matrix": [4, 5], "x": 12.5, "y": 0.3},
+        {"matrix": [4, 4], "x": 13.5, "y": 0.1},
+        {"matrix": [4, 3], "x": 14.5, "y": 0},
+        {"matrix": [4, 2], "x": 15.5, "y": 0.1, "h": 1.1},
+        {"matrix": [4, 1], "x": 16.5, "y": 0.2, "h": 1.5},
+        {"matrix": [4, 0], "x": 17.5, "y": 0.4, "h": 1.3},
+
+        {"matrix": [1, 7], "x": 0, "y": 1.7},
+        {"matrix": [1, 6], "x": 1, "y": 1.7},
+        {"matrix": [1, 5], "x": 2, "y": 1.2},
+        {"matrix": [1, 4], "x": 3, "y": 1},
+        {"matrix": [1, 3], "x": 4, "y": 1.1},
+        {"matrix": [1, 2], "x": 5, "y": 1.3},
+        {"matrix": [0, 1], "x": 6, "y": 0.6, "h": 1.5},
+
+        {"matrix": [4, 6], "x": 11.5, "y": 0.6, "h": 1.5},
+        {"matrix": [5, 5], "x": 12.5, "y": 1.3},
+        {"matrix": [5, 4], "x": 13.5, "y": 1.1},
+        {"matrix": [5, 3], "x": 14.5, "y": 1},
+        {"matrix": [5, 2], "x": 15.5, "y": 1.2},
+        {"matrix": [5, 1], "x": 16.5, "y": 1.7},
+        {"matrix": [5, 0], "x": 17.5, "y": 1.7},
+
+        {"matrix": [2, 7], "x": 0, "y": 2.7},
+        {"matrix": [2, 6], "x": 1, "y": 2.7},
+        {"matrix": [2, 5], "x": 2, "y": 2.2},
+        {"matrix": [2, 4], "x": 3, "y": 2},
+        {"matrix": [2, 3], "x": 4, "y": 2.1},
+        {"matrix": [2, 2], "x": 5, "y": 2.3},
+        {"matrix": [1, 1], "x": 6, "y": 2.1, "h": 1.3},
+
+        {"matrix": [5, 6], "x": 11.5, "y": 2.1, "h": 1.3},
+        {"matrix": [6, 5], "x": 12.5, "y": 2.3},
+        {"matrix": [6, 4], "x": 13.5, "y": 2.1},
+        {"matrix": [6, 3], "x": 14.5, "y": 2},
+        {"matrix": [6, 2], "x": 15.5, "y": 2.2},
+        {"matrix": [6, 1], "x": 16.5, "y": 2.7},
+        {"matrix": [6, 0], "x": 17.5, "y": 2.7},
+
+        {"matrix": [3, 7], "x": 0, "y": 3.7, "h": 1.2},
+        {"matrix": [3, 6], "x": 1, "y": 3.7},
+        {"matrix": [3, 5], "x": 2, "y": 3.2, "h": 1.15},
+        {"matrix": [3, 4], "x": 3, "y": 3},
+        {"matrix": [3, 3], "x": 4, "y": 3.1},
+        {"matrix": [3, 2], "x": 5, "y": 3.3},
+        {"matrix": [2, 1], "x": 6, "y": 3.4, "h": 1.1},
+
+        {"matrix": [6, 6], "x": 11.5, "y": 3.4, "h": 1.1},
+        {"matrix": [7, 5], "x": 12.5, "y": 3.3},
+        {"matrix": [7, 4], "x": 13.5, "y": 3.1},
+        {"matrix": [7, 3], "x": 14.5, "y": 3},
+        {"matrix": [7, 2], "x": 15.5, "y": 3.2, "h": 1.15},
+        {"matrix": [7, 1], "x": 16.5, "y": 3.7},
+        {"matrix": [7, 0], "x": 17.5, "y": 3.7, "h": 1.2},
+
+        {"matrix": [0, 0], "x": 4.75, "y": 4.3},
+        {"matrix": [1, 0], "x": 5.75, "y": 4.5},
+        {"matrix": [2, 0], "x": 6.75, "y": 4.7},
+        {"matrix": [3, 0], "x": 7.75, "y": 5.1},
+
+        {"matrix": [7, 7], "x": 9.75, "y": 5.1},
+        {"matrix": [6, 7], "x": 10.75, "y": 4.7},
+        {"matrix": [5, 7], "x": 11.75, "y": 4.5},
+        {"matrix": [4, 7], "x": 12.75, "y": 4.3},
+
+        {"matrix": [3, 1], "x": 6.25, "y": 6.1, "h": 1.4},
+
+        {"matrix": [7, 6], "x": 11.25, "y": 6.1, "h": 1.4}
+      ]
+    }
+  }
+}