Add OpenRGB device support for PC peripheral ambient lighting

New device type enabling control of keyboards, mice, RAM, GPU, and fans
via the OpenRGB SDK server (TCP port 6742). Includes auto-discovery,
health monitoring, state snapshot/restore, and fast synchronous pixel
send with brightness scaling. Also updates TODO.md with complexity notes.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

server/src/wled_controller/static/js/core/api.js

@@ -86,6 +86,10 @@ export function isWsDevice(type) {
     return type === 'ws';
 }
 
+export function isOpenrgbDevice(type) {
+    return type === 'openrgb';
+}
+
 export function handle401Error() {
     if (!apiKey) return; // Already handled or no session
     localStorage.removeItem('wled_api_key');

server/src/wled_controller/static/js/features/device-discovery.js

@@ -6,7 +6,7 @@ import {
     _discoveryScanRunning, set_discoveryScanRunning,
     _discoveryCache, set_discoveryCache,
 } from '../core/state.js';
-import { API_BASE, fetchWithAuth, isSerialDevice, isMockDevice, isMqttDevice, isWsDevice, escapeHtml } from '../core/api.js';
+import { API_BASE, fetchWithAuth, isSerialDevice, isMockDevice, isMqttDevice, isWsDevice, isOpenrgbDevice, escapeHtml } from '../core/api.js';
 import { t } from '../core/i18n.js';
 import { showToast } from '../core/ui.js';
 import { Modal } from '../core/modal.js';
@@ -111,6 +111,24 @@ export function onDeviceTypeChanged() {
             serialSelect.appendChild(opt);
         }
         updateBaudFpsHint();
+    } else if (isOpenrgbDevice(deviceType)) {
+        urlGroup.style.display = '';
+        urlInput.setAttribute('required', '');
+        serialGroup.style.display = 'none';
+        serialSelect.removeAttribute('required');
+        ledCountGroup.style.display = 'none';
+        baudRateGroup.style.display = 'none';
+        if (ledTypeGroup) ledTypeGroup.style.display = 'none';
+        if (sendLatencyGroup) sendLatencyGroup.style.display = 'none';
+        if (scanBtn) scanBtn.style.display = '';
+        if (urlLabel) urlLabel.textContent = t('device.openrgb.url');
+        if (urlHint) urlHint.textContent = t('device.openrgb.url.hint');
+        urlInput.placeholder = 'openrgb://localhost:6742/0';
+        if (deviceType in _discoveryCache) {
+            _renderDiscoveryList();
+        } else {
+            scanForDevices();
+        }
     } else {
         urlGroup.style.display = '';
         urlInput.setAttribute('required', '');

server/src/wled_controller/static/js/features/devices.js

@@ -5,7 +5,7 @@
 import {
     _deviceBrightnessCache, updateDeviceBrightness,
 } from '../core/state.js';
-import { API_BASE, getHeaders, fetchWithAuth, escapeHtml, isSerialDevice, isMockDevice, isMqttDevice, isWsDevice } from '../core/api.js';
+import { API_BASE, getHeaders, fetchWithAuth, escapeHtml, isSerialDevice, isMockDevice, isMqttDevice, isWsDevice, isOpenrgbDevice } from '../core/api.js';
 import { t } from '../core/i18n.js';
 import { showToast, showConfirm } from '../core/ui.js';
 import { Modal } from '../core/modal.js';
@@ -203,6 +203,10 @@ export async function showSettings(deviceId) {
                 if (urlLabel) urlLabel.textContent = t('device.mqtt_topic');
                 if (urlHint) urlHint.textContent = t('device.mqtt_topic.hint');
                 urlInput.placeholder = t('device.mqtt_topic.placeholder') || 'mqtt://ledgrab/device/living-room';
+            } else if (isOpenrgbDevice(device.device_type)) {
+                if (urlLabel) urlLabel.textContent = t('device.openrgb.url');
+                if (urlHint) urlHint.textContent = t('device.openrgb.url.hint');
+                urlInput.placeholder = 'openrgb://localhost:6742/0';
             } else {
                 if (urlLabel) urlLabel.textContent = t('device.url');
                 if (urlHint) urlHint.textContent = t('settings.url.hint');

server/src/wled_controller/static/locales/en.json

@@ -134,6 +134,9 @@
   "device.mqtt_topic.placeholder": "mqtt://ledgrab/device/living-room",
   "device.ws_url": "Connection URL:",
   "device.ws_url.hint": "WebSocket URL for clients to connect and receive LED data",
+  "device.openrgb.url": "OpenRGB URL:",
+  "device.openrgb.url.hint": "OpenRGB server address (e.g. openrgb://localhost:6742/0)",
+  "device.type.openrgb": "OpenRGB",
   "device.url.hint": "IP address or hostname of the device (e.g. http://192.168.1.100)",
   "device.name": "Device Name:",
   "device.name.placeholder": "Living Room TV",

server/src/wled_controller/static/locales/ru.json

@@ -134,6 +134,9 @@
   "device.mqtt_topic.placeholder": "mqtt://ledgrab/device/гостиная",
   "device.ws_url": "URL подключения:",
   "device.ws_url.hint": "WebSocket URL для подключения клиентов и получения LED данных",
+  "device.openrgb.url": "OpenRGB URL:",
+  "device.openrgb.url.hint": "Адрес сервера OpenRGB (напр. openrgb://localhost:6742/0)",
+  "device.type.openrgb": "OpenRGB",
   "device.url.hint": "IP адрес или имя хоста устройства (напр. http://192.168.1.100)",
   "device.name": "Имя Устройства:",
   "device.name.placeholder": "ТВ в Гостиной",

server/src/wled_controller/static/locales/zh.json

@@ -134,6 +134,9 @@
   "device.mqtt_topic.placeholder": "mqtt://ledgrab/device/客厅",
   "device.ws_url": "连接 URL：",
   "device.ws_url.hint": "客户端连接并接收 LED 数据的 WebSocket URL",
+  "device.openrgb.url": "OpenRGB URL：",
+  "device.openrgb.url.hint": "OpenRGB 服务器地址（例如 openrgb://localhost:6742/0）",
+  "device.type.openrgb": "OpenRGB",
   "device.url.hint": "设备的 IP 地址或主机名（例如 http://192.168.1.100）",
   "device.name": "设备名称：",
   "device.name.placeholder": "客厅电视",