Add Royal Kludge RK61 (#25694)

7 files changed, 389 insertions, 0 deletions

diff --git a/keyboards/royal_kludge/rk61/config.h b/keyboards/royal_kludge/rk61/config.h
new file mode 100644
index 0000000000..22c9d1d3e9
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/config.h
@@ -0,0 +1,11 @@
+// Copyright 2025 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define WS2812_SPI_DRIVER SPID2
+#define WS2812_SPI_MOSI_PAL_MODE 0
+#define WS2812_SPI_SCK_PAL_MODE 0
+#define WS2812_SPI_SCK_PIN B13
+
+#define CAPS_LOCK_LED_INDEX 40
diff --git a/keyboards/royal_kludge/rk61/halconf.h b/keyboards/royal_kludge/rk61/halconf.h
new file mode 100644
index 0000000000..b7fd8398a2
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/halconf.h
@@ -0,0 +1,9 @@
+// Copyright 2025 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#define HAL_USE_SPI TRUE
+
+#include_next <halconf.h>
+
diff --git a/keyboards/royal_kludge/rk61/keyboard.json b/keyboards/royal_kludge/rk61/keyboard.json
new file mode 100644
index 0000000000..d98ce4765b
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/keyboard.json
@@ -0,0 +1,223 @@
+{
+    "manufacturer": "Royal Kludge",
+    "keyboard_name": "RK61",
+    "maintainer": "DEREFERENC3D",
+    "bootloader": "stm32-dfu",
+    "diode_direction": "COL2ROW",
+    "dynamic_keymap": {
+        "layer_count": 16
+    },
+    "features": {
+        "bootmagic": true,
+        "extrakey": true,
+        "mousekey": false,
+        "nkro": true,
+        "rgb_matrix": true
+    },
+    "matrix_pins": {
+        "cols": ["A10", "A9", "B2", "A15", "B3", "B4", "B5", "B8", "B9", "C13", "C14", "C15", "A0", "A1"],
+        "rows": ["A6", "A5", "A4", "A3", "A2"]
+    },
+    "processor": "STM32F072",
+    "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
+        },
+        "default": {
+            "hue": 170,
+            "val": 150
+        },
+        "driver": "ws2812",
+        "layout": [
+            {"matrix": [0, 13], "x": 218, "y": 0, "flags": 1},
+            {"matrix": [0, 12], "x": 193, "y": 0, "flags": 4},
+            {"matrix": [0, 11], "x": 177, "y": 0, "flags": 4},
+            {"matrix": [0, 10], "x": 161, "y": 0, "flags": 4},
+            {"matrix": [0, 9], "x": 145, "y": 0, "flags": 4},
+            {"matrix": [0, 8], "x": 129, "y": 0, "flags": 4},
+            {"matrix": [0, 7], "x": 113, "y": 0, "flags": 4},
+            {"matrix": [0, 6], "x": 97, "y": 0, "flags": 4},
+            {"matrix": [0, 5], "x": 81, "y": 0, "flags": 4},
+            {"matrix": [0, 4], "x": 64, "y": 0, "flags": 4},
+            {"matrix": [0, 3], "x": 48, "y": 0, "flags": 4},
+            {"matrix": [0, 2], "x": 32, "y": 0, "flags": 4},
+            {"matrix": [0, 1], "x": 16, "y": 0, "flags": 4},
+            {"matrix": [0, 0], "x": 0, "y": 0, "flags": 1},
+            {"matrix": [1, 0], "x": 4, "y": 16, "flags": 1},
+            {"matrix": [1, 1], "x": 24, "y": 16, "flags": 4},
+            {"matrix": [1, 2], "x": 40, "y": 16, "flags": 4},
+            {"matrix": [1, 3], "x": 56, "y": 16, "flags": 4},
+            {"matrix": [1, 4], "x": 73, "y": 16, "flags": 4},
+            {"matrix": [1, 5], "x": 89, "y": 16, "flags": 4},
+            {"matrix": [1, 6], "x": 105, "y": 16, "flags": 4},
+            {"matrix": [1, 7], "x": 121, "y": 16, "flags": 4},
+            {"matrix": [1, 8], "x": 137, "y": 16, "flags": 4},
+            {"matrix": [1, 9], "x": 153, "y": 16, "flags": 4},
+            {"matrix": [1, 10], "x": 169, "y": 16, "flags": 4},
+            {"matrix": [1, 11], "x": 185, "y": 16, "flags": 4},
+            {"matrix": [1, 12], "x": 202, "y": 16, "flags": 4},
+            {"matrix": [1, 13], "x": 222, "y": 16, "flags": 1},
+            {"matrix": [2, 12], "x": 216, "y": 32, "flags": 1},
+            {"matrix": [2, 11], "x": 189, "y": 32, "flags": 4},
+            {"matrix": [2, 10], "x": 173, "y": 32, "flags": 4},
+            {"matrix": [2, 9], "x": 157, "y": 32, "flags": 4},
+            {"matrix": [2, 8], "x": 141, "y": 32, "flags": 4},
+            {"matrix": [2, 7], "x": 125, "y": 32, "flags": 4},
+            {"matrix": [2, 6], "x": 109, "y": 32, "flags": 4},
+            {"matrix": [2, 5], "x": 93, "y": 32, "flags": 4},
+            {"matrix": [2, 4], "x": 77, "y": 32, "flags": 4},
+            {"matrix": [2, 3], "x": 60, "y": 32, "flags": 4},
+            {"matrix": [2, 2], "x": 44, "y": 32, "flags": 4},
+            {"matrix": [2, 1], "x": 28, "y": 32, "flags": 4},
+            {"matrix": [2, 0], "x": 6, "y": 32, "flags": 1},
+            {"matrix": [3, 0], "x": 10, "y": 48, "flags": 1},
+            {"matrix": [3, 1], "x": 36, "y": 48, "flags": 4},
+            {"matrix": [3, 2], "x": 52, "y": 48, "flags": 4},
+            {"matrix": [3, 3], "x": 69, "y": 48, "flags": 4},
+            {"matrix": [3, 4], "x": 85, "y": 48, "flags": 4},
+            {"matrix": [3, 5], "x": 101, "y": 48, "flags": 4},
+            {"matrix": [3, 6], "x": 117, "y": 48, "flags": 4},
+            {"matrix": [3, 7], "x": 133, "y": 48, "flags": 4},
+            {"matrix": [3, 8], "x": 149, "y": 48, "flags": 4},
+            {"matrix": [3, 9], "x": 165, "y": 48, "flags": 4},
+            {"matrix": [3, 10], "x": 181, "y": 48, "flags": 4},
+            {"matrix": [3, 11], "x": 212, "y": 48, "flags": 1},
+            {"matrix": [4, 12], "x": 224, "y": 64, "flags": 1},
+            {"matrix": [4, 10], "x": 204, "y": 64, "flags": 1},
+            {"matrix": [4, 9], "x": 184, "y": 64, "flags": 1},
+            {"matrix": [4, 8], "x": 164, "y": 64, "flags": 1},
+            {"matrix": [4, 5], "x": 103, "y": 64, "flags": 1},
+            {"matrix": [4, 2], "x": 42, "y": 64, "flags": 1},
+            {"matrix": [4, 1], "x": 22, "y": 64, "flags": 1},
+            {"matrix": [4, 0], "x": 2, "y": 64, "flags": 1}
+        ],
+        "max_brightness": 200,
+        "sleep": true
+    },
+    "url": "http://en.rkgaming.com/",
+    "usb": {
+        "device_version": "1.0.1",
+        "pid": "0x6461",
+        "vid": "0x1480"
+    },
+    "ws2812": {
+        "pin": "B15",
+        "driver": "spi"
+    },
+    "community_layouts": ["60_ansi"],
+    "layouts": {
+        "LAYOUT_60_ansi": {
+            "layout": [
+                {"label": "ESC", "matrix": [0, 0], "x": 0, "y": 0},
+                {"label": "!", "matrix": [0, 1], "x": 1, "y": 0},
+                {"label": "\"", "matrix": [0, 2], "x": 2, "y": 0},
+                {"label": "\u00a3", "matrix": [0, 3], "x": 3, "y": 0},
+                {"label": "$", "matrix": [0, 4], "x": 4, "y": 0},
+                {"label": "%", "matrix": [0, 5], "x": 5, "y": 0},
+                {"label": "^", "matrix": [0, 6], "x": 6, "y": 0},
+                {"label": "&", "matrix": [0, 7], "x": 7, "y": 0},
+                {"label": "*", "matrix": [0, 8], "x": 8, "y": 0},
+                {"label": "(", "matrix": [0, 9], "x": 9, "y": 0},
+                {"label": ")", "matrix": [0, 10], "x": 10, "y": 0},
+                {"label": "_", "matrix": [0, 11], "x": 11, "y": 0},
+                {"label": "+", "matrix": [0, 12], "x": 12, "y": 0},
+                {"label": "Backspace", "matrix": [0, 13], "x": 13, "y": 0, "w": 2},
+                {"label": "Tab", "matrix": [1, 0], "x": 0, "y": 1, "w": 1.5},
+                {"label": "Q", "matrix": [1, 1], "x": 1.5, "y": 1},
+                {"label": "W", "matrix": [1, 2], "x": 2.5, "y": 1},
+                {"label": "E", "matrix": [1, 3], "x": 3.5, "y": 1},
+                {"label": "R", "matrix": [1, 4], "x": 4.5, "y": 1},
+                {"label": "T", "matrix": [1, 5], "x": 5.5, "y": 1},
+                {"label": "Y", "matrix": [1, 6], "x": 6.5, "y": 1},
+                {"label": "U", "matrix": [1, 7], "x": 7.5, "y": 1},
+                {"label": "I", "matrix": [1, 8], "x": 8.5, "y": 1},
+                {"label": "O", "matrix": [1, 9], "x": 9.5, "y": 1},
+                {"label": "P", "matrix": [1, 10], "x": 10.5, "y": 1},
+                {"label": "{", "matrix": [1, 11], "x": 11.5, "y": 1},
+                {"label": "}", "matrix": [1, 12], "x": 12.5, "y": 1},
+                {"label": "|", "matrix": [1, 13], "x": 13.5, "y": 1, "w": 1.5},
+                {"label": "Caps Lock", "matrix": [2, 0], "x": 0, "y": 2, "w": 1.75},
+                {"label": "A", "matrix": [2, 1], "x": 1.75, "y": 2},
+                {"label": "S", "matrix": [2, 2], "x": 2.75, "y": 2},
+                {"label": "D", "matrix": [2, 3], "x": 3.75, "y": 2},
+                {"label": "F", "matrix": [2, 4], "x": 4.75, "y": 2},
+                {"label": "G", "matrix": [2, 5], "x": 5.75, "y": 2},
+                {"label": "H", "matrix": [2, 6], "x": 6.75, "y": 2},
+                {"label": "J", "matrix": [2, 7], "x": 7.75, "y": 2},
+                {"label": "K", "matrix": [2, 8], "x": 8.75, "y": 2},
+                {"label": "L", "matrix": [2, 9], "x": 9.75, "y": 2},
+                {"label": ":", "matrix": [2, 10], "x": 10.75, "y": 2},
+                {"label": "\"", "matrix": [2, 11], "x": 11.75, "y": 2},
+                {"label": "Enter", "matrix": [2, 12], "x": 12.75, "y": 2, "w": 2.25},
+                {"label": "Shift", "matrix": [3, 0], "x": 0, "y": 3, "w": 2.25},
+                {"label": "Z", "matrix": [3, 1], "x": 2.25, "y": 3},
+                {"label": "X", "matrix": [3, 2], "x": 3.25, "y": 3},
+                {"label": "C", "matrix": [3, 3], "x": 4.25, "y": 3},
+                {"label": "V", "matrix": [3, 4], "x": 5.25, "y": 3},
+                {"label": "B", "matrix": [3, 5], "x": 6.25, "y": 3},
+                {"label": "N", "matrix": [3, 6], "x": 7.25, "y": 3},
+                {"label": "M", "matrix": [3, 7], "x": 8.25, "y": 3},
+                {"label": "<", "matrix": [3, 8], "x": 9.25, "y": 3},
+                {"label": ">", "matrix": [3, 9], "x": 10.25, "y": 3},
+                {"label": "?", "matrix": [3, 10], "x": 11.25, "y": 3},
+                {"label": "Shift", "matrix": [3, 11], "x": 12.25, "y": 3, "w": 2.75},
+                {"label": "Ctrl", "matrix": [4, 0], "x": 0, "y": 4, "w": 1.25},
+                {"label": "Win", "matrix": [4, 1], "x": 1.25, "y": 4, "w": 1.25},
+                {"label": "Alt", "matrix": [4, 2], "x": 2.5, "y": 4, "w": 1.25},
+                {"matrix": [4, 5], "x": 3.75, "y": 4, "w": 6.25},
+                {"label": "AltGr", "matrix": [4, 8], "x": 10, "y": 4, "w": 1.25},
+                {"label": "Menu", "matrix": [4, 9], "x": 11.25, "y": 4, "w": 1.25},
+                {"label": "Ctrl", "matrix": [4, 10], "x": 12.5, "y": 4, "w": 1.25},
+                {"label": "Fn", "matrix": [4, 12], "x": 13.75, "y": 4, "w": 1.25}
+            ]
+        }
+    }
+}
diff --git a/keyboards/royal_kludge/rk61/keymaps/default/keymap.c b/keyboards/royal_kludge/rk61/keymaps/default/keymap.c
new file mode 100644
index 0000000000..2efc47913b
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/keymaps/default/keymap.c
@@ -0,0 +1,111 @@
+// Copyright 2025 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+#include QMK_KEYBOARD_H
+
+enum layers {
+    WIN_BASE,
+    WIN_T,
+    WIN_ALT,
+    ARROW_FN,
+    LWIN_DIS,
+    WIN_FN,
+    WIN_T_FN,
+    WIN_ALT_FN,
+    MAC_BASE,
+    MAC_FN,
+};
+
+const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
+    [WIN_BASE] = LAYOUT_60_ansi(
+        KC_ESC,  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_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_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_LSFT, KC_Z,    KC_X,    KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT,  KC_UP,                      KC_RSFT,
+        KC_LCTL, KC_LWIN, KC_LALT,                KC_SPC,                 KC_LEFT, KC_DOWN, KC_RIGHT,          MO(WIN_FN)
+    ),
+    [WIN_FN]   = LAYOUT_60_ansi(
+        KC_GRV,      KC_F1,        KC_F2,        KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
+        _______,     _______,      _______,      _______, _______, _______, KC_PSCR, KC_SCRL, KC_PAUS, _______, _______, RM_VALD, RM_VALU, RM_NEXT,
+        _______,     _______,      DF(MAC_BASE), _______, _______, _______, KC_INS,  KC_HOME, KC_PGUP, _______, RM_SPDD, RM_SPDU,          TG(ARROW_FN),
+        _______,     _______,      _______,      _______, _______, _______, KC_DEL,  KC_END,  KC_PGDN, RM_HUEU, _______,                   _______,
+        DF(WIN_ALT), TG(LWIN_DIS), _______,                          _______,                          _______, _______, _______,          _______
+    ),
+    [WIN_T]    = LAYOUT_60_ansi(
+        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
+        _______, _______, _______,                       _______,                        _______, _______, _______,          MO(WIN_T_FN)
+    ),
+    [WIN_T_FN]   = LAYOUT_60_ansi(
+        KC_ESC,	      KC_MYCM,      KC_WHOM,      KC_MAIL, KC_CALC, KC_MSEL, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE, KC_VOLD, KC_VOLU, KC_BSPC,
+        _______,      _______,      _______,      _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______,      _______,      DF(MAC_BASE), _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______,      _______,      _______,      _______, _______, _______, _______, _______, _______, _______, _______,                   TG(ARROW_FN),
+        DF(WIN_BASE), TG(LWIN_DIS), _______,                          _______,                          _______, _______, _______,          _______
+    ),
+    [WIN_ALT]   = LAYOUT_60_ansi(
+        KC_GRV,  KC_F1,   KC_F2,   KC_F3,   KC_F4,   KC_F5,   KC_F6,   KC_F7,   KC_F8,   KC_F9,   KC_F10,  KC_F11,  KC_F12,  KC_DEL,
+        _______, _______, _______, _______, _______, _______, KC_PSCR, KC_SCRL, KC_PAUS, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, KC_INS,  KC_HOME, KC_PGUP, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, KC_DEL,  KC_END,  KC_PGDN, _______, _______,                   _______,
+        _______, _______, _______,                       _______,                        _______, _______, _______,          MO(WIN_ALT_FN)
+    ),
+    [WIN_ALT_FN]   = LAYOUT_60_ansi(
+        KC_ESC,	   KC_MYCM,      KC_WHOM, KC_MAIL, KC_CALC, KC_MSEL, KC_MSTP, KC_MPRV, KC_MPLY, KC_MNXT, KC_MUTE, KC_VOLD, KC_VOLU, KC_BSPC,
+        _______,   _______,      _______, _______, _______, _______, KC_Y,    KC_U,    KC_I,    _______, _______, _______, _______, _______,
+        _______,   _______,      _______, _______, _______, _______, KC_H,    KC_J,    KC_K,    _______, _______, _______,          TG(ARROW_FN),
+        _______,   _______,      _______, _______, _______, _______, KC_N,    KC_M,    KC_COMM, _______, _______,                   _______,
+        DF(WIN_T), TG(LWIN_DIS), _______,                       _______,                        _______, _______, _______,          _______
+    ),
+    [MAC_BASE] = LAYOUT_60_ansi(
+        KC_ESC,  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_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_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_LSFT, KC_Z,    KC_X,    KC_C, KC_V, KC_B, KC_N, KC_M, KC_COMM, KC_DOT,  KC_SLSH,                    KC_RSFT,
+        KC_LCTL, KC_LOPT, KC_LCMD,                 KC_SPC,                KC_RCMD, KC_APP, KC_RCTL,            MO(MAC_FN)
+    ),
+    [MAC_FN]   = LAYOUT_60_ansi(
+        _______, _______,      _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______, _______, _______,
+        _______, _______,      _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______, _______, _______,
+        _______, DF(WIN_BASE), _______, _______, _______, _______, _______, _______, _______, _______, _______,  _______,          _______,
+        _______, _______,      _______, _______, _______, _______, _______, _______, _______, _______,  KC_SLSH,                   _______,
+        _______, _______,      _______,                       _______,                        _______,  KC_F1,   KC_RCTL,          KC_F2
+    ),
+    [ARROW_FN]   = LAYOUT_60_ansi(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, KC_SLSH,                   _______,
+        _______, _______, _______,                       _______,                        KC_RALT, KC_APP,  KC_RCTL,          _______
+    ),
+    [LWIN_DIS]   = LAYOUT_60_ansi(
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,          _______,
+        _______, _______, _______, _______, _______, _______, _______, _______, _______, _______, _______,                   _______,
+        _______, KC_NO,   _______,                       _______,                        _______, _______, _______,          _______
+    ),
+};
+
+#ifdef CAPS_LOCK_LED_INDEX
+bool rgb_matrix_indicators_user(void) {
+    if (host_keyboard_led_state().caps_lock) {
+        rgb_matrix_set_color(CAPS_LOCK_LED_INDEX, 255, 255, 255);
+    } else {
+        if (!rgb_matrix_get_flags()) {
+            rgb_matrix_set_color(CAPS_LOCK_LED_INDEX, 0, 0, 0);
+        }
+    }
+
+    if (layer_state_is(LWIN_DIS)) {
+        rgb_matrix_set_color(59, 255, 255, 255);
+    } else {
+        if (!rgb_matrix_get_flags()) {
+            rgb_matrix_set_color(59, 0, 0, 0);
+        }
+    }
+
+    return false;
+}
+#endif
diff --git a/keyboards/royal_kludge/rk61/mcuconf.h b/keyboards/royal_kludge/rk61/mcuconf.h
new file mode 100644
index 0000000000..f459d17ee9
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/mcuconf.h
@@ -0,0 +1,9 @@
+// Copyright 2025 QMK
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include_next <mcuconf.h>
+
+#undef STM32_SPI_USE_SPI2
+#define STM32_SPI_USE_SPI2 TRUE
diff --git a/keyboards/royal_kludge/rk61/readme.md b/keyboards/royal_kludge/rk61/readme.md
new file mode 100644
index 0000000000..d8ba3a3a4f
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/readme.md
@@ -0,0 +1,25 @@
+# Royal Kludge RK61
+
+![Royal Kludge RK61](https://imgur.com/9YoEEkH.jpg)
+
+* Keyboard Maintainer: [DEREFERENC3D](https://github.com/DEREFERENC3D)
+* Hardware Supported: Royal Kludge RK61 - wired-only QMK version
+* Hardware Availability: [RKGaming.com](https://en.rkgaming.com/product/43/), [Amazon.com](https://www.amazon.com/RK-ROYAL-KLUDGE-Mechanical-Ultra-Compact/dp/B0832LSV8N)
+
+Make example for this keyboard (after setting up your build environment):
+
+    make royal_kludge/rk61:default
+
+Flashing example for this keyboard:
+
+    make royal_kludge/rk61: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 3 ways:
+
+* **Bootmagic reset**: Hold down the Escape key and plug in the keyboard (this one might be disabled on the stock firmware)
+* **Physical reset button**: Briefly press the button on the PCB, located under the space bar keycap, to the right of the space bar's switch
+* **Keycode in layout**: Press the key mapped to `QK_BOOT` if it is available. On the stock firmware, VIA should allow it to be mapped.
diff --git a/keyboards/royal_kludge/rk61/rules.mk b/keyboards/royal_kludge/rk61/rules.mk
new file mode 100644
index 0000000000..fb3dcdbf7a
--- /dev/null
+++ b/keyboards/royal_kludge/rk61/rules.mk
@@ -0,0 +1 @@
+DFU_SUFFIX_ARGS = -p FFFF -v FFFF