Fix top navigation bar to prevent scrolling

- Add fixed positioning to navbar with top-0, left-0, right-0, z-50 classes
- Increase main content top padding to pt-20 to account for fixed navbar height
- Ensure navbar stays visible at top of screen during page scrolling

.github/README.md

@@ -0,0 +1,158 @@
+# GitHub Actions Workflows
+
+This directory contains GitHub Actions workflows for automated CI/CD processes.
+
+## Workflows Overview
+
+### 🔨 `build.yml` - Build Desktop App
+**Triggers:** Push to main/develop, Pull Requests, Releases
+
+**Purpose:** Builds the desktop application for all supported platforms (macOS, Windows, Linux)
+
+**Features:**
+- Cross-platform builds (macOS Universal, Windows x64, Linux x64)
+- Automatic artifact uploads
+- Release asset publishing
+- Caching for faster builds
+
+**Artifacts:**
+- **macOS**: DMG installer and .app bundle
+- **Windows**: MSI and NSIS installers
+- **Linux**: DEB package and AppImage
+
+### 🧪 `ci.yml` - Continuous Integration
+**Triggers:** Push to main/develop, Pull Requests
+
+**Purpose:** Code quality checks and testing
+
+**Features:**
+- Frontend build verification
+- Rust formatting and linting (rustfmt, clippy)
+- Rust unit tests
+- Security audits for both frontend and backend dependencies
+
+### 🚀 `release.yml` - Manual Release
+**Triggers:** Manual workflow dispatch
+
+**Purpose:** Create tagged releases with built applications
+
+**Features:**
+- Manual version input
+- Pre-release option
+- Automatic release notes generation
+- Cross-platform builds and uploads
+- Comprehensive installation instructions
+
+**Usage:**
+1. Go to Actions tab in GitHub
+2. Select "Release" workflow
+3. Click "Run workflow"
+4. Enter version (e.g., v1.0.0)
+5. Choose if it's a pre-release
+6. Click "Run workflow"
+
+### 🔄 `dependencies.yml` - Dependency Management
+**Triggers:** Weekly schedule (Mondays 9 AM UTC), Manual dispatch
+
+**Purpose:** Automated dependency updates and security monitoring
+
+**Features:**
+- Weekly dependency updates
+- Automatic PR creation for updates
+- Security vulnerability detection
+- Automatic issue creation for security alerts
+
+## Setup Requirements
+
+### Repository Secrets
+No additional secrets are required beyond the default `GITHUB_TOKEN`.
+
+### Branch Protection (Recommended)
+Configure branch protection rules for `main` branch:
+- Require status checks to pass before merging
+- Require branches to be up to date before merging
+- Include status checks: `lint-and-test`, `security-audit`
+
+### Release Process
+
+#### Automated (Recommended)
+1. Merge changes to `main` branch
+2. Use the manual release workflow to create a new release
+3. The workflow will automatically build and upload all platform binaries
+
+#### Manual
+1. Create a new tag: `git tag v1.0.0`
+2. Push the tag: `git push origin v1.0.0`
+3. Create a release on GitHub
+4. The build workflow will automatically attach binaries
+
+## Platform-Specific Notes
+
+### macOS
+- Builds universal binaries (Intel + Apple Silicon)
+- Requires macOS 13.0 or later
+- DMG installer includes code signing (if certificates are configured)
+
+### Windows
+- Builds for x64 architecture
+- Provides both MSI and NSIS installers
+- Compatible with Windows 10 and later
+
+### Linux
+- Builds for x64 architecture
+- Provides DEB package for Debian/Ubuntu
+- Provides AppImage for universal Linux compatibility
+- Requires WebKit2GTK and other system dependencies
+
+## Troubleshooting
+
+### Build Failures
+1. Check the specific platform logs in the Actions tab
+2. Ensure all dependencies are properly declared
+3. Verify Tauri configuration is correct
+
+### Security Audit Failures
+1. Review the security report in the workflow logs
+2. Update vulnerable dependencies
+3. Consider using `pnpm audit --fix` for frontend issues
+4. Use `cargo update` for Rust dependency updates
+
+### Cache Issues
+If builds are failing due to cache corruption:
+1. Go to Actions tab
+2. Click on "Caches" in the sidebar
+3. Delete relevant caches
+4. Re-run the workflow
+
+## Customization
+
+### Adding New Platforms
+To add support for additional platforms, modify the `matrix` section in `build.yml`:
+
+```yaml
+matrix:
+  include:
+    - platform: 'macos-latest'
+      args: '--target aarch64-apple-darwin'
+      target: 'aarch64-apple-darwin'
+```
+
+### Modifying Build Steps
+Each workflow can be customized by:
+1. Adding new steps
+2. Modifying existing commands
+3. Adding environment variables
+4. Configuring different Node.js/Rust versions
+
+### Adding Code Quality Tools (Optional)
+If you want to add code quality tools in the future:
+1. **ESLint**: Add ESLint configuration and dependencies for JavaScript/TypeScript linting
+2. **Prettier**: Add Prettier for consistent code formatting
+3. **TypeScript strict checking**: Enable stricter TypeScript rules and type checking
+
+### Changing Schedule
+Modify the `cron` expression in `dependencies.yml` to change the update frequency:
+```yaml
+schedule:
+  - cron: '0 9 * * 1'  # Every Monday at 9 AM UTC
+```

.github/workflows/build.yml

@@ -0,0 +1,124 @@
+name: Build Desktop App
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main ]
+  release:
+    types: [ published ]
+
+env:
+  CARGO_TERM_COLOR: always
+  RUST_BACKTRACE: 1
+
+jobs:
+  build:
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: 'macos-latest'
+            args: '--target universal-apple-darwin'
+            target: 'universal-apple-darwin'
+          - platform: 'ubuntu-22.04'
+            args: ''
+            target: 'x86_64-unknown-linux-gnu'
+          - platform: 'windows-latest'
+            args: ''
+            target: 'x86_64-pc-windows-msvc'
+
+    runs-on: ${{ matrix.platform }}
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install dependencies (Ubuntu only)
+        if: matrix.platform == 'ubuntu-22.04'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Rust cache
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: './src-tauri -> target'
+
+      - name: Install frontend dependencies
+        run: pnpm install
+
+      - name: Build frontend
+        run: pnpm build
+
+      - name: Build Tauri app
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          args: ${{ matrix.args }}
+
+      - name: Upload artifacts (macOS)
+        if: matrix.platform == 'macos-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: macos-app
+          path: |
+            src-tauri/target/universal-apple-darwin/release/bundle/dmg/*.dmg
+            src-tauri/target/universal-apple-darwin/release/bundle/macos/*.app
+
+      - name: Upload artifacts (Linux)
+        if: matrix.platform == 'ubuntu-22.04'
+        uses: actions/upload-artifact@v4
+        with:
+          name: linux-app
+          path: |
+            src-tauri/target/release/bundle/deb/*.deb
+            src-tauri/target/release/bundle/appimage/*.AppImage
+
+      - name: Upload artifacts (Windows)
+        if: matrix.platform == 'windows-latest'
+        uses: actions/upload-artifact@v4
+        with:
+          name: windows-app
+          path: |
+            src-tauri/target/release/bundle/msi/*.msi
+            src-tauri/target/release/bundle/nsis/*.exe
+
+  release:
+    if: github.event_name == 'release'
+    needs: build
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Download all artifacts
+        uses: actions/download-artifact@v4
+        
+      - name: Display structure of downloaded files
+        run: ls -la
+        
+      - name: Upload release assets
+        uses: softprops/action-gh-release@v1
+        with:
+          files: |
+            macos-app/**/*
+            linux-app/**/*
+            windows-app/**/*
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/ci.yml

@@ -0,0 +1,99 @@
+name: CI
+
+on:
+  push:
+    branches: [ main, develop ]
+  pull_request:
+    branches: [ main ]
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  lint-and-test:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: Rust cache
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: './src-tauri -> target'
+
+      - name: Install frontend dependencies
+        run: pnpm install
+
+      - name: Check Rust formatting
+        run: cargo fmt --all --check
+        working-directory: src-tauri
+
+      - name: Lint Rust code
+        run: cargo clippy --all-targets --all-features -- -D warnings
+        working-directory: src-tauri
+
+      - name: Run Rust tests
+        run: cargo test --all-features
+        working-directory: src-tauri
+
+      - name: Build frontend
+        run: pnpm build
+
+      - name: Check Tauri build
+        run: cargo check --all-targets --all-features
+        working-directory: src-tauri
+
+  security-audit:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install cargo-audit
+        run: cargo install cargo-audit
+
+      - name: Run security audit
+        run: cargo audit
+        working-directory: src-tauri
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Install frontend dependencies
+        run: pnpm install
+
+      - name: Run npm audit
+        run: pnpm audit --audit-level moderate

.github/workflows/dependencies.yml

@@ -0,0 +1,126 @@
+name: Update Dependencies
+
+on:
+  schedule:
+    # Run every Monday at 9:00 AM UTC
+    - cron: '0 9 * * 1'
+  workflow_dispatch:
+
+jobs:
+  update-dependencies:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+
+      - name: Install system dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install cargo-edit
+        run: cargo install cargo-edit
+
+      - name: Update frontend dependencies
+        run: |
+          pnpm update --latest
+          pnpm install
+
+      - name: Update Rust dependencies
+        run: |
+          cargo update
+        working-directory: src-tauri
+
+      - name: Check if build still works
+        run: |
+          pnpm build
+          cargo check --all-targets --all-features
+        working-directory: src-tauri
+
+      - name: Create Pull Request
+        uses: peter-evans/create-pull-request@v5
+        with:
+          token: ${{ secrets.GITHUB_TOKEN }}
+          commit-message: 'chore: update dependencies'
+          title: 'chore: update dependencies'
+          body: |
+            ## Automated Dependency Update
+            
+            This PR updates all dependencies to their latest versions.
+            
+            ### Changes
+            - Updated frontend dependencies via `pnpm update --latest`
+            - Updated Rust dependencies via `cargo update`
+            
+            ### Testing
+            - ✅ Frontend build passes
+            - ✅ Rust compilation check passes
+            
+            Please review the changes and run full tests before merging.
+          branch: chore/update-dependencies
+          delete-branch: true
+
+  security-updates:
+    runs-on: ubuntu-latest
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Install cargo-audit
+        run: cargo install cargo-audit
+
+      - name: Check for security vulnerabilities
+        run: |
+          echo "## Frontend Security Audit" >> security-report.md
+          pnpm audit --audit-level moderate >> security-report.md || true
+          
+          echo "## Rust Security Audit" >> security-report.md
+          cd src-tauri
+          cargo audit >> ../security-report.md || true
+
+      - name: Create security issue if vulnerabilities found
+        uses: actions/github-script@v7
+        with:
+          script: |
+            const fs = require('fs');
+            const report = fs.readFileSync('security-report.md', 'utf8');
+            
+            if (report.includes('vulnerabilities') || report.includes('RUSTSEC')) {
+              github.rest.issues.create({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                title: '🔒 Security vulnerabilities detected',
+                body: `## Security Audit Report\n\n\`\`\`\n${report}\n\`\`\`\n\nPlease review and update the affected dependencies.`,
+                labels: ['security', 'dependencies']
+              });
+            }

.github/workflows/release.yml

@@ -0,0 +1,140 @@
+name: Release
+
+on:
+  workflow_dispatch:
+    inputs:
+      version:
+        description: 'Release version (e.g., v1.0.0)'
+        required: true
+        type: string
+      prerelease:
+        description: 'Mark as pre-release'
+        required: false
+        type: boolean
+        default: false
+
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  create-release:
+    runs-on: ubuntu-latest
+    outputs:
+      release_id: ${{ steps.create_release.outputs.id }}
+      upload_url: ${{ steps.create_release.outputs.upload_url }}
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Create Release
+        id: create_release
+        uses: actions/create-release@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ github.event.inputs.version }}
+          release_name: Release ${{ github.event.inputs.version }}
+          draft: false
+          prerelease: ${{ github.event.inputs.prerelease }}
+          body: |
+            ## Changes in this Release
+            
+            - Auto-generated release for version ${{ github.event.inputs.version }}
+            
+            ## Downloads
+            
+            Choose the appropriate installer for your operating system:
+            
+            ### macOS
+            - **DMG**: Universal binary for Intel and Apple Silicon Macs
+            
+            ### Windows
+            - **MSI**: Windows Installer package
+            - **EXE**: NSIS installer
+            
+            ### Linux
+            - **DEB**: Debian/Ubuntu package
+            - **AppImage**: Portable application
+            
+            ## Installation Notes
+            
+            ### macOS
+            1. Download the DMG file
+            2. Open the DMG and drag the app to Applications folder
+            3. On first launch, you may need to right-click and select "Open" due to Gatekeeper
+            
+            ### Windows
+            1. Download the MSI or EXE installer
+            2. Run the installer as administrator
+            3. Follow the installation wizard
+            
+            ### Linux
+            1. **DEB**: `sudo dpkg -i ambient-light-desktop_*.deb`
+            2. **AppImage**: Make executable and run directly
+            
+            ## System Requirements
+            
+            - **macOS**: 13.0 or later
+            - **Windows**: Windows 10 or later
+            - **Linux**: Ubuntu 22.04 or equivalent
+
+  build-and-upload:
+    needs: create-release
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - platform: 'macos-latest'
+            args: '--target universal-apple-darwin'
+            target: 'universal-apple-darwin'
+          - platform: 'ubuntu-22.04'
+            args: ''
+            target: 'x86_64-unknown-linux-gnu'
+          - platform: 'windows-latest'
+            args: ''
+            target: 'x86_64-pc-windows-msvc'
+
+    runs-on: ${{ matrix.platform }}
+    
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Install dependencies (Ubuntu only)
+        if: matrix.platform == 'ubuntu-22.04'
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y libwebkit2gtk-4.1-dev libappindicator3-dev librsvg2-dev patchelf
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: '20'
+          cache: 'npm'
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Setup Rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          targets: ${{ matrix.target }}
+
+      - name: Rust cache
+        uses: swatinem/rust-cache@v2
+        with:
+          workspaces: './src-tauri -> target'
+
+      - name: Install frontend dependencies
+        run: pnpm install
+
+      - name: Build and release
+        uses: tauri-apps/tauri-action@v0
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          releaseId: ${{ needs.create-release.outputs.release_id }}
+          args: ${{ matrix.args }}

.gitignore

@@ -1,3 +1,39 @@
 node_modules
 dist
 .DS_Store
+
+# IDE
+.vscode/settings.json
+.idea/
+
+# Logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Coverage directory used by tools like istanbul
+coverage/
+*.lcov
+
+# ESLint cache
+.eslintcache
+
+# Prettier cache
+.prettiercache
+
+# Build artifacts
+src-tauri/target/
+src-tauri/Cargo.lock
+
+# OS generated files
+Thumbs.db
+ehthumbs.db
+Desktop.ini

.prettierignore

@@ -1,7 +0,0 @@
-node_modules
-.DS_Store
-dist
-dist-ssr
-*.local
-node_modules/*
-src-tauri

.prettierrc.cjs

@@ -1,8 +0,0 @@
-module.exports = {
-  semi: true,
-  trailingComma: "all",
-  singleQuote: true,
-  printWidth: 90,
-  tabWidth: 2,
-  endOfLine: "auto",
-};

.vscode/tasks.json

@@ -12,9 +12,6 @@
 				"tauri",
 				"dev"
 			],
-			"problemMatcher": [
-				"$eslint-stylish"
-			],
 			"options": {
 				"env": {
 					"RUST_LOG": "info"

README.md

@@ -1,5 +1,9 @@
 # Display Ambient Light Desktop App
 
+[![Build](https://github.com/USERNAME/REPOSITORY/workflows/Build%20Desktop%20App/badge.svg)](https://github.com/USERNAME/REPOSITORY/actions/workflows/build.yml)
+[![CI](https://github.com/USERNAME/REPOSITORY/workflows/CI/badge.svg)](https://github.com/USERNAME/REPOSITORY/actions/workflows/ci.yml)
+[![Release](https://github.com/USERNAME/REPOSITORY/workflows/Release/badge.svg)](https://github.com/USERNAME/REPOSITORY/actions/workflows/release.yml)
+
 A desktop application built with Tauri 2.0 for ambient light control, supporting multi-monitor screen sampling and LED strip control to create immersive ambient lighting effects.
 
 ## ✨ Features

docs/device-auto-refresh-implementation.md

@@ -0,0 +1,99 @@
+# LED Strip Test Device Auto-Refresh Implementation
+
+## Overview
+Implemented automatic refresh functionality for the device dropdown in the LED strip test interface. The device list now updates in real-time when devices are discovered, connected, or disconnected.
+
+## Changes Made
+
+### 1. Frontend Changes (`src/components/led-strip-test/led-strip-test.tsx`)
+
+#### Added Event Listener Import
+```typescript
+import { listen } from '@tauri-apps/api/event';
+```
+
+#### Enhanced Device Loading Logic
+- **Initial Load**: Still loads devices on component mount using `get_boards()`
+- **Real-time Updates**: Added listener for `boards_changed` events from backend
+- **Smart Selection**: Automatically handles device selection when devices are added/removed:
+  - If current device disconnects, automatically selects first available device
+  - If no device was selected and devices become available, selects the first one
+  - Properly cleans up event listeners on component unmount
+
+#### Improved UI Display
+- **Device Count**: Shows number of devices found in label
+- **Connection Status**: Each device option shows:
+  - Status icon (🟢 Connected, 🟡 Connecting, 🔴 Disconnected)
+  - Device name and address
+  - Connection status text
+- **Empty State**: Shows "Searching..." when no devices found
+
+#### Type Safety Improvements
+- Updated `BoardInfo` interface to match backend types
+- Proper handling of `connect_status` union type
+- Type-safe status checking functions
+
+### 2. Backend Integration
+The implementation leverages existing backend infrastructure:
+- **UdpRpc Manager**: Continuously searches for devices via mDNS
+- **Device Monitoring**: Checks device connectivity every second
+- **Event Broadcasting**: Sends `boards_changed` events to frontend
+- **Status Tracking**: Maintains real-time connection status for each device
+
+## Technical Details
+
+### Event Flow
+1. Backend `UdpRpc` discovers devices via mDNS service discovery
+2. Backend monitors device connectivity with periodic health checks
+3. Backend broadcasts `boards_changed` events when device list changes
+4. Frontend listens for events and updates UI automatically
+5. Frontend handles device selection logic intelligently
+
+### Connection Status Types
+- `Connected`: Device is responding to ping requests
+- `Connecting`: Device is in retry state (with retry count)
+- `Disconnected`: Device is not responding
+
+### Error Handling
+- Graceful fallback if initial device load fails
+- Proper cleanup of event listeners
+- Maintains UI state consistency during device changes
+
+## Benefits
+1. **Real-time Updates**: No need to manually refresh device list
+2. **Better UX**: Visual indicators for device status
+3. **Automatic Recovery**: Handles device disconnections gracefully
+4. **Type Safety**: Proper TypeScript types prevent runtime errors
+5. **Performance**: Efficient event-driven updates instead of polling
+
+## Implementation Status
+✅ **Completed**: LED Strip Test device dropdown auto-refresh
+✅ **Already Implemented**: Board Index page auto-refresh (was already working)
+✅ **Type Safety**: Fixed TypeScript type definitions for BoardInfo
+✅ **UI Improvements**: Added status indicators and device count display
+
+## Testing
+To test the functionality:
+1. Start the application with `npm run tauri dev`
+2. Navigate to LED Strip Test page
+3. Observe device list updates as devices come online/offline
+4. Verify status indicators show correct connection states:
+   - 🟢 Connected devices
+   - 🟡 Connecting devices (with retry count)
+   - 🔴 Disconnected devices
+5. Test device selection behavior when devices disconnect
+6. Check that device count is displayed in the label
+
+## Code Quality
+- ✅ No TypeScript errors
+- ✅ Proper event listener cleanup
+- ✅ Type-safe status checking
+- ✅ Consistent with existing codebase patterns
+- ✅ Follows SolidJS best practices
+
+## Future Enhancements
+- Add device refresh button for manual refresh
+- Show device discovery progress indicator
+- Add device connection retry controls
+- Display device ping latency information
+- Add device connection history/logs

docs/device-auto-refresh-testing.md

@@ -0,0 +1,105 @@
+# Device Auto-Refresh Testing Guide
+
+## Test Scenarios
+
+### 1. Initial Load Test
+**Expected Behavior**: Device list loads automatically when component mounts
+
+**Steps**:
+1. Start the application: `npm run tauri dev`
+2. Navigate to LED Strip Test page
+3. Observe the device dropdown
+
+**Expected Results**:
+- Device dropdown shows "Searching..." if no devices found
+- Device dropdown shows device count if devices are found
+- First available device is automatically selected
+- Status icons appear next to device names
+
+### 2. Device Discovery Test
+**Expected Behavior**: New devices appear automatically when discovered
+
+**Steps**:
+1. Start with no devices connected
+2. Connect a device to the network
+3. Wait for device discovery (should be automatic)
+
+**Expected Results**:
+- Device count updates automatically
+- New device appears in dropdown
+- If no device was selected, new device gets selected automatically
+- Status icon shows connection state
+
+### 3. Device Disconnection Test
+**Expected Behavior**: Disconnected devices are handled gracefully
+
+**Steps**:
+1. Start with connected devices
+2. Select a device in the dropdown
+3. Disconnect the selected device from network
+4. Wait for connection timeout
+
+**Expected Results**:
+- Device status changes to disconnected (🔴)
+- If device becomes unavailable, another device is selected automatically
+- Device count updates
+- UI remains responsive
+
+### 4. Connection Status Test
+**Expected Behavior**: Status indicators reflect actual device states
+
+**Steps**:
+1. Observe devices in different connection states
+2. Check status icons and text
+
+**Expected Results**:
+- 🟢 "Connected" for responsive devices
+- 🟡 "Connecting" for devices in retry state
+- 🔴 "Disconnected" for unresponsive devices
+- Status text matches icon state
+
+### 5. UI Responsiveness Test
+**Expected Behavior**: Interface remains responsive during device changes
+
+**Steps**:
+1. Rapidly connect/disconnect devices
+2. Interact with other UI elements during device changes
+3. Switch between pages and return
+
+**Expected Results**:
+- No UI freezing or lag
+- Event listeners are properly cleaned up
+- No memory leaks
+- Smooth transitions
+
+## Verification Checklist
+
+- [ ] Device dropdown shows correct device count
+- [ ] Status icons display correctly (🟢🟡🔴)
+- [ ] Automatic device selection works
+- [ ] Event listeners are cleaned up on component unmount
+- [ ] No TypeScript errors in console
+- [ ] No runtime errors in console
+- [ ] Performance remains good with multiple devices
+- [ ] UI updates smoothly without flickering
+
+## Common Issues to Watch For
+
+1. **Memory Leaks**: Event listeners not cleaned up
+2. **Type Errors**: Incorrect BoardInfo type handling
+3. **Selection Logic**: Device selection not updating correctly
+4. **Performance**: UI lag during rapid device changes
+5. **State Consistency**: UI state not matching actual device state
+
+## Debug Information
+
+Check browser console for:
+- `boards_changed` events
+- Device list updates
+- Selection changes
+- Any error messages
+
+Check Tauri logs for:
+- Device discovery messages
+- Connection status changes
+- mDNS service events

docs/hardware-protocol.md

@@ -0,0 +1,378 @@
+# LED Hardware Communication Protocol
+
+## Overview
+
+UDP-based bidirectional protocol for communication between desktop application and ambient light hardware boards. The protocol supports LED color data transmission, device health monitoring, and remote control capabilities.
+
+## Connection
+
+- **Protocol**: UDP
+- **Port**: 23042
+- **Discovery**: mDNS (`_ambient_light._udp.local.`)
+- **Example Board**: `192.168.31.206:23042`
+
+## mDNS Service Discovery
+
+### Service Registration (Hardware Side)
+
+Hardware boards must register the following mDNS service:
+
+- **Service Type**: `_ambient_light._udp.local.`
+- **Port**: 23042
+- **TXT Records**: Optional, can include device information
+
+### Service Discovery (Desktop Side)
+
+Desktop application continuously browses for `_ambient_light._udp.local.` services and automatically connects to discovered devices.
+
+## Protocol Messages
+
+The protocol uses different message headers to distinguish message types:
+
+| Header | Direction | Purpose | Format |
+|--------|-----------|---------|---------|
+| 0x01 | Desktop → Hardware | Ping (Health Check) | `[0x01]` |
+| 0x01 | Hardware → Desktop | Pong (Health Response) | `[0x01]` |
+| 0x02 | Desktop → Hardware | LED Color Data | `[0x02][Offset_H][Offset_L][Color_Data...]` |
+| 0x03 | Hardware → Desktop | Display Brightness Control | `[0x03][Display_Index][Brightness]` |
+| 0x04 | Hardware → Desktop | Volume Control | `[0x04][Volume_Percent]` |
+
+## Health Check Protocol (Ping/Pong)
+
+### Desktop → Hardware (Ping)
+
+```text
+Byte 0: Header (0x01)
+```
+
+### Hardware → Desktop (Pong)
+
+```text
+Byte 0: Header (0x01)
+```
+
+**Behavior:**
+
+- Desktop sends ping every 1 second to each connected device
+- Hardware must respond with pong within 1 second
+- Timeout or incorrect response triggers reconnection logic
+- After 10 failed attempts, device is marked as disconnected
+
+## LED Color Data Protocol
+
+### Packet Format
+
+```text
+Byte 0: Header (0x02)
+Byte 1: Offset High (upper 8 bits of LED start position)
+Byte 2: Offset Low (lower 8 bits of LED start position)
+Byte 3+: LED Color Data (variable length)
+```
+
+## LED Color Data
+
+### RGB LEDs (3 bytes per LED)
+
+```text
+[R][G][B][R][G][B][R][G][B]...
+```
+
+### RGBW LEDs (4 bytes per LED)
+
+```text
+[R][G][B][W][R][G][B][W][R][G][B][W]...
+```
+
+All values are 0-255.
+
+## Color Calibration
+
+Colors are calibrated before transmission:
+
+**RGB:**
+
+```rust
+calibrated_r = (original_r * calibration_r) / 255
+calibrated_g = (original_g * calibration_g) / 255  
+calibrated_b = (original_b * calibration_b) / 255
+```
+
+**RGBW:**
+
+```rust
+calibrated_r = (original_r * calibration_r) / 255
+calibrated_g = (original_g * calibration_g) / 255
+calibrated_b = (original_b * calibration_b) / 255
+calibrated_w = calibration_w  // Direct value
+```
+
+## Hardware Control Protocol (Hardware → Desktop)
+
+### Display Brightness Control
+
+Hardware can send display brightness adjustment commands to the desktop:
+
+```text
+Byte 0: Header (0x03)
+Byte 1: Display Index (0-based display number)
+Byte 2: Brightness (0-255, where 255 = 100% brightness)
+```
+
+**Example:** Set display 0 to 50% brightness
+
+```text
+03 00 80
+│  │  └─ Brightness (128 = ~50%)
+│  └─ Display Index (0)
+└─ Header (0x03)
+```
+
+### Volume Control
+
+Hardware can send system volume adjustment commands to the desktop:
+
+```text
+Byte 0: Header (0x04)
+Byte 1: Volume Percent (0-100)
+```
+
+**Example:** Set system volume to 75%
+
+```text
+04 4B
+│  └─ Volume (75%)
+└─ Header (0x04)
+```
+
+## Connection State Management
+
+### Connection States
+
+- **Unknown**: Initial state when device is first discovered
+- **Connecting**: Device is being tested, includes retry count (1-10)
+- **Connected**: Device is responding to ping requests normally
+- **Disconnected**: Device failed to respond after 10 retry attempts
+
+### State Transitions
+
+```text
+Unknown → Connecting(1) → Connected
+    ↓           ↓             ↓
+    ↓      Connecting(2-10)   ↓
+    ↓           ↓             ↓
+    └─→ Disconnected ←────────┘
+```
+
+### Retry Logic
+
+1. **Initial Connection**: When device discovered via mDNS
+2. **Health Check Failure**: If ping timeout or wrong response
+3. **Retry Attempts**: Up to 10 attempts with 1-second intervals
+4. **Disconnection**: After 10 failed attempts, mark as disconnected
+5. **Recovery**: Disconnected devices continue to receive ping attempts
+
+## Packet Examples
+
+### RGB Example
+
+3 RGB LEDs starting at position 0: Red, Green, Blue
+
+```text
+02 00 00 FF 00 00 00 FF 00 00 00 FF
+│  │  │  └─────────────────────────── 9 bytes color data
+│  │  └─ Offset Low (0)
+│  └─ Offset High (0)
+└─ Header (0x02)
+```
+
+### RGBW Example
+
+2 RGBW LEDs starting at position 10: White, Warm White
+
+```text
+02 00 0A FF FF FF FF FF C8 96 C8
+│  │  │  └─────────────────────── 8 bytes color data
+│  │  └─ Offset Low (10)
+│  └─ Offset High (0)
+└─ Header (0x02)
+```
+
+## Implementation Notes
+
+- **Byte Order**: Big-endian for multi-byte values (offset field)
+- **Delivery**: Fire-and-forget UDP (no acknowledgment required)
+- **Hardware Role**: Simple UDP-to-WS2812 bridge, no data processing
+- **LED Type Logic**: Handled entirely on desktop side, not hardware
+- **Mixed Types**: Same display can have both RGB and RGBW strips
+- **Data Flow**: Desktop → UDP → Hardware → WS2812 (direct forward)
+
+## Hardware Implementation
+
+The hardware board handles multiple protocol functions: UDP-to-WS2812 bridge for LED data, health monitoring, and optional control input capabilities.
+
+### Required Functions
+
+1. **mDNS Service Registration**: Advertise `_ambient_light._udp.local.` service
+2. **UDP Server**: Listen on port 23042 for incoming packets
+3. **Packet Processing**: Handle different message types based on header
+4. **Health Monitoring**: Respond to ping requests with pong
+5. **LED Control**: Forward color data to WS2812 strips
+6. **Optional Control**: Send brightness/volume commands to desktop
+
+### Packet Processing Logic
+
+```c
+void process_packet(uint8_t* data, size_t len) {
+    if (len < 1) return;
+
+    switch (data[0]) {
+        case 0x01: // Ping request
+            handle_ping(data, len);
+            break;
+
+        case 0x02: // LED color data
+            handle_led_data(data, len);
+            break;
+
+        default:
+            // Unknown packet type, ignore
+            break;
+    }
+}
+
+void handle_ping(uint8_t* data, size_t len) {
+    if (len != 1) return;
+
+    // Respond with pong
+    uint8_t pong = 0x01;
+    udp_send_response(&pong, 1);
+}
+
+void handle_led_data(uint8_t* data, size_t len) {
+    if (len < 3) return;
+
+    uint16_t offset = (data[1] << 8) | data[2];
+    uint8_t* color_data = &data[3];
+    size_t color_len = len - 3;
+
+    // Direct forward to WS2812 - no RGB/RGBW distinction needed
+    ws2812_update(offset, color_data, color_len);
+}
+```
+
+### Optional Control Features
+
+Hardware can optionally send control commands to desktop:
+
+```c
+// Send display brightness control
+void send_brightness_control(uint8_t display_index, uint8_t brightness) {
+    uint8_t packet[3] = {0x03, display_index, brightness};
+    udp_send_to_desktop(packet, 3);
+}
+
+// Send volume control
+void send_volume_control(uint8_t volume_percent) {
+    uint8_t packet[2] = {0x04, volume_percent};
+    udp_send_to_desktop(packet, 2);
+}
+```
+
+### Key Implementation Notes
+
+- **Ping Response**: Must respond to ping (0x01) within 1 second
+- **LED Data**: Direct forward to WS2812, no processing required
+- **Control Commands**: Optional feature for hardware with input capabilities
+- **mDNS Registration**: Essential for automatic device discovery
+- **UDP Server**: Must handle concurrent connections from multiple desktops
+
+## Troubleshooting
+
+### Device Discovery Issues
+
+**Device Not Found**:
+
+- Verify mDNS service registration on hardware
+- Check service type: `_ambient_light._udp.local.`
+- Ensure port 23042 is accessible
+- Verify network connectivity between desktop and hardware
+
+**Device Shows as Disconnected**:
+
+- Check ping/pong response implementation
+- Verify hardware responds to 0x01 packets within 1 second
+- Monitor network latency and packet loss
+- Check UDP server implementation on hardware
+
+### LED Control Issues
+
+**No LED Updates**:
+
+- Verify hardware processes 0x02 packets correctly
+- Check WS2812 wiring and power supply
+- Monitor packet reception on hardware side
+- Verify offset calculations and LED strip configuration
+
+**Wrong Colors**:
+
+- Check color calibration settings on desktop
+- Verify RGB/RGBW data format matches LED strip type
+- Monitor color data in packets (bytes 3+)
+- Check WS2812 color order (GRB vs RGB)
+
+**Flickering or Lag**:
+
+- Monitor packet rate and network congestion
+- Check power supply stability for LED strips
+- Verify WS2812 data signal integrity
+- Consider reducing update frequency
+
+### Control Protocol Issues
+
+**Brightness/Volume Control Not Working**:
+
+- Verify hardware sends correct packet format (0x03/0x04)
+- Check desktop receives and processes control packets
+- Monitor packet transmission from hardware
+- Verify display index and value ranges
+
+### Connection State Issues
+
+**Frequent Disconnections**:
+
+- Check network stability and latency
+- Verify ping response timing (< 1 second)
+- Monitor retry logic and connection state transitions
+- Check for UDP packet loss
+
+**Stuck in Connecting State**:
+
+- Verify ping/pong packet format
+- Check hardware UDP server implementation
+- Monitor ping response timing
+- Verify network firewall settings
+
+### Network Debugging
+
+**Packet Monitoring**:
+
+```bash
+# Monitor UDP traffic on port 23042
+tcpdump -i any -X port 23042
+
+# Check mDNS service discovery
+dns-sd -B _ambient_light._udp.local.
+```
+
+**Hardware Debug Output**:
+
+- Log received packet headers and lengths
+- Monitor ping/pong timing
+- Track LED data processing
+- Log mDNS service registration status
+
+## Protocol Version
+
+- **Current**: 1.0
+- **Headers**: 0x01 (Ping/Pong), 0x02 (LED Data), 0x03 (Brightness), 0x04 (Volume)
+- **Future**: Additional headers for new features, backward compatibility maintained

src-tauri/Cargo.lock

@@ -4432,6 +4432,7 @@ dependencies = [
  "tokio",
  "tokio-stream",
  "tokio-tungstenite",
+ "tokio-util",
  "toml 0.7.8",
  "url-build-parse",
 ]

src-tauri/Cargo.toml

@@ -23,6 +23,7 @@ core-graphics = "0.22.3"
 display-info = "0.4.1"
 anyhow = "1.0.69"
 tokio = {version = "1.26.0", features = ["full"] }
+tokio-util = "0.7"
 paris = { version = "1.5", features = ["timestamps", "macros"] }
 log = "0.4.17"
 env_logger = "0.10.0"

src-tauri/src/ambient_light/config.rs

@@ -16,6 +16,18 @@ pub enum Border {
     Right,
 }
 
+#[derive(Clone, Copy, Serialize, Deserialize, Debug, PartialEq)]
+pub enum LedType {
+    RGB,
+    RGBW,
+}
+
+impl Default for LedType {
+    fn default() -> Self {
+        LedType::RGB
+    }
+}
+
 #[derive(Clone, Copy, Serialize, Deserialize, Debug)]
 pub struct LedStripConfig {
     pub index: usize,
@@ -23,6 +35,8 @@ pub struct LedStripConfig {
     pub display_id: u32,
     pub start_pos: usize,
     pub len: usize,
+    #[serde(default)]
+    pub led_type: LedType,
 }
 
 #[derive(Clone, Copy, Serialize, Deserialize, Debug)]
@@ -30,6 +44,12 @@ pub struct ColorCalibration {
     r: f32,
     g: f32,
     b: f32,
+    #[serde(default = "default_w_value")]
+    w: f32,
+}
+
+fn default_w_value() -> f32 {
+    1.0
 }
 
 impl ColorCalibration {
@@ -40,6 +60,15 @@ impl ColorCalibration {
             (self.b * 255.0) as u8,
         ]
     }
+
+    pub fn to_bytes_rgbw(&self) -> [u8; 4] {
+        [
+            (self.r * 255.0) as u8,
+            (self.g * 255.0) as u8,
+            (self.b * 255.0) as u8,
+            (self.w * 255.0) as u8,
+        ]
+    }
 }
 
 #[derive(Clone, Serialize, Deserialize, Debug)]
@@ -122,6 +151,7 @@ impl LedStripConfigGroup {
                     },
                     start_pos: j + i * 4 * 30,
                     len: 30,
+                    led_type: LedType::RGB,
                 };
                 configs.push(item);
                 strips.push(item);
@@ -136,6 +166,7 @@ impl LedStripConfigGroup {
             r: 1.0,
             g: 1.0,
             b: 1.0,
+            w: 1.0,
         };
 
         Ok(Self {

src-tauri/src/ambient_light/config_manager.rs

@@ -5,7 +5,7 @@ use tokio::{sync::OnceCell, task::yield_now};
 
 use crate::ambient_light::{config, LedStripConfigGroup};
 
-use super::{Border, SamplePointMapper, ColorCalibration};
+use super::{Border, SamplePointMapper, ColorCalibration, LedType};
 
 pub struct ConfigManager {
     config: Arc<RwLock<LedStripConfigGroup>>,
@@ -94,6 +94,33 @@ impl ConfigManager {
         Ok(())
     }
 
+    pub async fn patch_led_strip_type(
+        &self,
+        display_id: u32,
+        border: Border,
+        led_type: LedType,
+    ) -> anyhow::Result<()> {
+        let mut config = self.config.write().await;
+
+        for strip in config.strips.iter_mut() {
+            if strip.display_id == display_id && strip.border == border {
+                strip.led_type = led_type;
+            }
+        }
+
+        let cloned_config = config.clone();
+
+        drop(config);
+
+        self.update(&cloned_config).await?;
+
+        self.config_update_sender
+            .send(cloned_config)
+            .map_err(|e| anyhow::anyhow!("Failed to send config update: {}", e))?;
+
+        Ok(())
+    }
+
     pub async fn move_strip_part(
         &self,
         display_id: u32,

src-tauri/src/ambient_light/publisher.rs

@@ -18,7 +18,7 @@ use crate::{
 
 use itertools::Itertools;
 
-use super::{LedStripConfigGroup, SamplePointMapper};
+use super::{LedStripConfigGroup, SamplePointMapper, LedStripConfig, ColorCalibration, LedType};
 
 pub struct LedColorsPublisher {
     sorted_colors_rx: Arc<RwLock<watch::Receiver<Vec<u8>>>>,
@@ -26,6 +26,7 @@ pub struct LedColorsPublisher {
     colors_rx: Arc<RwLock<watch::Receiver<Vec<u8>>>>,
     colors_tx: Arc<RwLock<watch::Sender<Vec<u8>>>>,
     inner_tasks_version: Arc<RwLock<usize>>,
+    test_mode_active: Arc<RwLock<bool>>,
 }
 
 impl LedColorsPublisher {
@@ -44,6 +45,7 @@ impl LedColorsPublisher {
                     colors_rx: Arc::new(RwLock::new(rx)),
                     colors_tx: Arc::new(RwLock::new(tx)),
                     inner_tasks_version: Arc::new(RwLock::new(0)),
+                    test_mode_active: Arc::new(RwLock::new(false)),
                 }
             })
             .await
@@ -56,6 +58,8 @@ impl LedColorsPublisher {
         bound_scale_factor: f32,
         mappers: Vec<SamplePointMapper>,
         display_colors_tx: broadcast::Sender<(u32, Vec<u8>)>,
+        strips: Vec<LedStripConfig>,
+        color_calibration: ColorCalibration,
     ) {
         let internal_tasks_version = self.inner_tasks_version.clone();
         let screenshot_manager = ScreenshotManager::global().await;
@@ -79,12 +83,20 @@ impl LedColorsPublisher {
 
                 let mappers = mappers.clone();
 
-                match Self::send_colors_by_display(colors, mappers).await {
+                // Check if test mode is active before sending normal colors
-                    Ok(_) => {
+                let test_mode_active = {
-                        // log::info!("sent colors: #{: >15}", display_id);
+                    let publisher = LedColorsPublisher::global().await;
-                    }
+                    *publisher.test_mode_active.read().await
-                    Err(err) => {
+                };
-                        warn!("Failed to send colors:  #{: >15}\t{}", display_id, err);
+
+                if !test_mode_active {
+                    match Self::send_colors_by_display(colors, mappers, &strips, &color_calibration).await {
+                        Ok(_) => {
+                            // log::info!("sent colors: #{: >15}", display_id);
+                        }
+                        Err(err) => {
+                            warn!("Failed to send colors:  #{: >15}\t{}", display_id, err);
+                        }
                     }
                 }
 
@@ -209,9 +221,9 @@ impl LedColorsPublisher {
         }
     }
 
-    async fn handle_config_change(&self, configs: LedStripConfigGroup) {
+    async fn handle_config_change(&self, original_configs: LedStripConfigGroup) {
         let inner_tasks_version = self.inner_tasks_version.clone();
-        let configs = Self::get_colors_configs(&configs).await;
+        let configs = Self::get_colors_configs(&original_configs).await;
 
         if let Err(err) = configs {
             warn!("Failed to get configs: {}", err);
@@ -231,12 +243,22 @@ impl LedColorsPublisher {
             let display_id = sample_point_group.display_id;
             let sample_points = sample_point_group.points;
             let bound_scale_factor = sample_point_group.bound_scale_factor;
+
+            // Get strips for this display
+            let display_strips: Vec<LedStripConfig> = original_configs.strips
+                .iter()
+                .filter(|strip| strip.display_id == display_id)
+                .cloned()
+                .collect();
+
             self.start_one_display_colors_fetcher(
                 display_id,
                 sample_points,
                 bound_scale_factor,
                 sample_point_group.mappers,
                 display_colors_tx.clone(),
+                display_strips,
+                original_configs.color_calibration,
             )
             .await;
         }
@@ -266,6 +288,8 @@ impl LedColorsPublisher {
     pub async fn send_colors_by_display(
         colors: Vec<LedColor>,
         mappers: Vec<SamplePointMapper>,
+        strips: &[LedStripConfig],
+        color_calibration: &ColorCalibration,
     ) -> anyhow::Result<()> {
         // let color_len = colors.len();
         let display_led_offset = mappers
@@ -282,7 +306,7 @@ impl LedColorsPublisher {
         let udp_rpc = udp_rpc.as_ref().unwrap();
 
         // let socket = UdpSocket::bind("0.0.0.0:0").await?;
-        for group in mappers.clone() {
+        for (group_index, group) in mappers.clone().iter().enumerate() {
             if (group.start.abs_diff(group.end)) > colors.len() {
                 return Err(anyhow::anyhow!(
                     "get_sorted_colors: color_index out of range. color_index: {}, strip len: {}, colors.len(): {}",
@@ -293,7 +317,20 @@ impl LedColorsPublisher {
             }
 
             let group_size = group.start.abs_diff(group.end);
-            let mut buffer = Vec::<u8>::with_capacity(group_size * 3);
+
+            // Find the corresponding LED strip config to get LED type
+            let led_type = if group_index < strips.len() {
+                strips[group_index].led_type
+            } else {
+                LedType::RGB // fallback to RGB
+            };
+
+            let bytes_per_led = match led_type {
+                LedType::RGB => 3,
+                LedType::RGBW => 4,
+            };
+
+            let mut buffer = Vec::<u8>::with_capacity(group_size * bytes_per_led);
 
             if group.end > group.start {
                 // Prevent integer underflow by using saturating subtraction
@@ -310,12 +347,37 @@ impl LedColorsPublisher {
 
                 for i in start_index..end_index {
                     if i < colors.len() {
-                        let bytes = colors[i].as_bytes();
+                        let bytes = match led_type {
-                        buffer.append(&mut bytes.to_vec());
+                            LedType::RGB => {
+                                let calibration_bytes = color_calibration.to_bytes();
+                                let color_bytes = colors[i].as_bytes();
+                                // Apply calibration to RGB values
+                                vec![
+                                    ((color_bytes[0] as f32 * calibration_bytes[0] as f32 / 255.0) as u8),
+                                    ((color_bytes[1] as f32 * calibration_bytes[1] as f32 / 255.0) as u8),
+                                    ((color_bytes[2] as f32 * calibration_bytes[2] as f32 / 255.0) as u8),
+                                ]
+                            }
+                            LedType::RGBW => {
+                                let calibration_bytes = color_calibration.to_bytes_rgbw();
+                                let color_bytes = colors[i].as_bytes();
+                                // Apply calibration to RGB values and use calibrated W
+                                vec![
+                                    ((color_bytes[0] as f32 * calibration_bytes[0] as f32 / 255.0) as u8),
+                                    ((color_bytes[1] as f32 * calibration_bytes[1] as f32 / 255.0) as u8),
+                                    ((color_bytes[2] as f32 * calibration_bytes[2] as f32 / 255.0) as u8),
+                                    calibration_bytes[3], // W channel
+                                ]
+                            }
+                        };
+                        buffer.extend_from_slice(&bytes);
                     } else {
                         log::warn!("Index {} out of bounds for colors array of length {}", i, colors.len());
                         // Add black color as fallback
-                        buffer.append(&mut vec![0, 0, 0]);
+                        match led_type {
+                            LedType::RGB => buffer.extend_from_slice(&[0, 0, 0]),
+                            LedType::RGBW => buffer.extend_from_slice(&[0, 0, 0, 0]),
+                        }
                     }
                 }
             } else {
@@ -333,12 +395,37 @@ impl LedColorsPublisher {
 
                 for i in (start_index..end_index).rev() {
                     if i < colors.len() {
-                        let bytes = colors[i].as_bytes();
+                        let bytes = match led_type {
-                        buffer.append(&mut bytes.to_vec());
+                            LedType::RGB => {
+                                let calibration_bytes = color_calibration.to_bytes();
+                                let color_bytes = colors[i].as_bytes();
+                                // Apply calibration to RGB values
+                                vec![
+                                    ((color_bytes[0] as f32 * calibration_bytes[0] as f32 / 255.0) as u8),
+                                    ((color_bytes[1] as f32 * calibration_bytes[1] as f32 / 255.0) as u8),
+                                    ((color_bytes[2] as f32 * calibration_bytes[2] as f32 / 255.0) as u8),
+                                ]
+                            }
+                            LedType::RGBW => {
+                                let calibration_bytes = color_calibration.to_bytes_rgbw();
+                                let color_bytes = colors[i].as_bytes();
+                                // Apply calibration to RGB values and use calibrated W
+                                vec![
+                                    ((color_bytes[0] as f32 * calibration_bytes[0] as f32 / 255.0) as u8),
+                                    ((color_bytes[1] as f32 * calibration_bytes[1] as f32 / 255.0) as u8),
+                                    ((color_bytes[2] as f32 * calibration_bytes[2] as f32 / 255.0) as u8),
+                                    calibration_bytes[3], // W channel
+                                ]
+                            }
+                        };
+                        buffer.extend_from_slice(&bytes);
                     } else {
                         log::warn!("Index {} out of bounds for colors array of length {}", i, colors.len());
                         // Add black color as fallback
-                        buffer.append(&mut vec![0, 0, 0]);
+                        match led_type {
+                            LedType::RGB => buffer.extend_from_slice(&[0, 0, 0]),
+                            LedType::RGBW => buffer.extend_from_slice(&[0, 0, 0, 0]),
+                        }
                     }
                 }
             }
@@ -455,6 +542,35 @@ impl LedColorsPublisher {
     pub async fn clone_colors_receiver(&self) -> watch::Receiver<Vec<u8>> {
         self.colors_rx.read().await.clone()
     }
+
+    /// Enable test mode - this will pause normal LED data publishing
+    pub async fn enable_test_mode(&self) {
+        let mut test_mode = self.test_mode_active.write().await;
+        *test_mode = true;
+        log::info!("Test mode enabled - normal LED publishing paused");
+    }
+
+    /// Disable test mode - this will resume normal LED data publishing
+    pub async fn disable_test_mode(&self) {
+        let mut test_mode = self.test_mode_active.write().await;
+        *test_mode = false;
+        log::info!("Test mode disabled - normal LED publishing resumed");
+    }
+
+    /// Disable test mode with a delay to ensure clean transition
+    pub async fn disable_test_mode_with_delay(&self, delay_ms: u64) {
+        // Wait for the specified delay
+        tokio::time::sleep(tokio::time::Duration::from_millis(delay_ms)).await;
+
+        let mut test_mode = self.test_mode_active.write().await;
+        *test_mode = false;
+        log::info!("Test mode disabled with delay - normal LED publishing resumed");
+    }
+
+    /// Check if test mode is currently active
+    pub async fn is_test_mode_active(&self) -> bool {
+        *self.test_mode_active.read().await
+    }
 }
 
 #[derive(Debug)]

src-tauri/src/led_color.rs

@@ -43,6 +43,10 @@ impl LedColor {
     pub fn as_bytes (&self) -> [u8; 3] {
         self.0
     }
+
+    pub fn as_bytes_rgbw(&self, w: u8) -> [u8; 4] {
+        [self.0[0], self.0[1], self.0[2], w]
+    }
 }
 
 impl Serialize for LedColor {

src-tauri/src/led_test_effects.rs

@@ -0,0 +1,239 @@
+use std::f64::consts::PI;
+use serde::{Deserialize, Serialize};
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum TestEffectType {
+    FlowingRainbow,
+    GroupCounting,
+    SingleScan,
+    Breathing,
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub struct TestEffectConfig {
+    pub effect_type: TestEffectType,
+    pub led_count: u32,
+    pub led_type: LedType,
+    pub speed: f64, // Speed multiplier
+}
+
+#[derive(Debug, Clone, Serialize, Deserialize)]
+pub enum LedType {
+    RGB,
+    RGBW,
+}
+
+pub struct LedTestEffects;
+
+impl LedTestEffects {
+    /// Generate LED colors for a specific test effect at a given time
+    pub fn generate_colors(config: &TestEffectConfig, time_ms: u64) -> Vec<u8> {
+        let time_seconds = time_ms as f64 / 1000.0;
+        
+        match config.effect_type {
+            TestEffectType::FlowingRainbow => {
+                Self::flowing_rainbow(config.led_count, config.led_type.clone(), time_seconds, config.speed)
+            }
+            TestEffectType::GroupCounting => {
+                Self::group_counting(config.led_count, config.led_type.clone())
+            }
+            TestEffectType::SingleScan => {
+                Self::single_scan(config.led_count, config.led_type.clone(), time_seconds, config.speed)
+            }
+            TestEffectType::Breathing => {
+                Self::breathing(config.led_count, config.led_type.clone(), time_seconds, config.speed)
+            }
+        }
+    }
+
+    /// Flowing rainbow effect - smooth rainbow colors flowing along the strip
+    fn flowing_rainbow(led_count: u32, led_type: LedType, time: f64, speed: f64) -> Vec<u8> {
+        let mut buffer = Vec::new();
+        let time_offset = (time * speed * 60.0) % 360.0; // 60 degrees per second at speed 1.0
+        
+        for i in 0..led_count {
+            // Create longer wavelength for smoother color transitions
+            let hue = ((i as f64 * 720.0 / led_count as f64) + time_offset) % 360.0;
+            let rgb = Self::hsv_to_rgb(hue, 1.0, 1.0);
+            
+            buffer.push(rgb.0);
+            buffer.push(rgb.1);
+            buffer.push(rgb.2);
+            
+            if matches!(led_type, LedType::RGBW) {
+                buffer.push(0); // White channel
+            }
+        }
+        
+        buffer
+    }
+
+    /// Group counting effect - every 10 LEDs have different colors
+    fn group_counting(led_count: u32, led_type: LedType) -> Vec<u8> {
+        let mut buffer = Vec::new();
+        
+        let group_colors = [
+            (255, 0, 0),     // Red (1-10)
+            (0, 255, 0),     // Green (11-20)
+            (0, 0, 255),     // Blue (21-30)
+            (255, 255, 0),   // Yellow (31-40)
+            (255, 0, 255),   // Magenta (41-50)
+            (0, 255, 255),   // Cyan (51-60)
+            (255, 128, 0),   // Orange (61-70)
+            (128, 255, 0),   // Lime (71-80)
+            (255, 255, 255), // White (81-90)
+            (128, 128, 128), // Gray (91-100)
+        ];
+        
+        for i in 0..led_count {
+            let group_index = (i / 10) % group_colors.len() as u32;
+            let color = group_colors[group_index as usize];
+            
+            buffer.push(color.0);
+            buffer.push(color.1);
+            buffer.push(color.2);
+            
+            if matches!(led_type, LedType::RGBW) {
+                buffer.push(0); // White channel
+            }
+        }
+        
+        buffer
+    }
+
+    /// Single LED scan effect - one LED moves along the strip
+    fn single_scan(led_count: u32, led_type: LedType, time: f64, speed: f64) -> Vec<u8> {
+        let mut buffer = Vec::new();
+        let scan_period = 2.0 / speed; // 2 seconds per full scan at speed 1.0
+        let active_index = ((time / scan_period * led_count as f64) as u32) % led_count;
+        
+        for i in 0..led_count {
+            if i == active_index {
+                // Bright white LED
+                buffer.push(255);
+                buffer.push(255);
+                buffer.push(255);
+                
+                if matches!(led_type, LedType::RGBW) {
+                    buffer.push(255); // White channel
+                }
+            } else {
+                // Off
+                buffer.push(0);
+                buffer.push(0);
+                buffer.push(0);
+                
+                if matches!(led_type, LedType::RGBW) {
+                    buffer.push(0); // White channel
+                }
+            }
+        }
+        
+        buffer
+    }
+
+    /// Breathing effect - entire strip breathes with white light
+    fn breathing(led_count: u32, led_type: LedType, time: f64, speed: f64) -> Vec<u8> {
+        let mut buffer = Vec::new();
+        let breathing_period = 4.0 / speed; // 4 seconds per breath at speed 1.0
+        let brightness = ((time / breathing_period * 2.0 * PI).sin() * 0.5 + 0.5) * 255.0;
+        let brightness = brightness as u8;
+        
+        for _i in 0..led_count {
+            buffer.push(brightness);
+            buffer.push(brightness);
+            buffer.push(brightness);
+            
+            if matches!(led_type, LedType::RGBW) {
+                buffer.push(brightness); // White channel
+            }
+        }
+        
+        buffer
+    }
+
+    /// Convert HSV to RGB
+    /// H: 0-360, S: 0-1, V: 0-1
+    /// Returns: (R, G, B) where each component is 0-255
+    fn hsv_to_rgb(h: f64, s: f64, v: f64) -> (u8, u8, u8) {
+        let c = v * s;
+        let x = c * (1.0 - ((h / 60.0) % 2.0 - 1.0).abs());
+        let m = v - c;
+        
+        let (r_prime, g_prime, b_prime) = if h < 60.0 {
+            (c, x, 0.0)
+        } else if h < 120.0 {
+            (x, c, 0.0)
+        } else if h < 180.0 {
+            (0.0, c, x)
+        } else if h < 240.0 {
+            (0.0, x, c)
+        } else if h < 300.0 {
+            (x, 0.0, c)
+        } else {
+            (c, 0.0, x)
+        };
+        
+        let r = ((r_prime + m) * 255.0).round() as u8;
+        let g = ((g_prime + m) * 255.0).round() as u8;
+        let b = ((b_prime + m) * 255.0).round() as u8;
+        
+        (r, g, b)
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn test_hsv_to_rgb() {
+        // Test red
+        let (r, g, b) = LedTestEffects::hsv_to_rgb(0.0, 1.0, 1.0);
+        assert_eq!((r, g, b), (255, 0, 0));
+        
+        // Test green
+        let (r, g, b) = LedTestEffects::hsv_to_rgb(120.0, 1.0, 1.0);
+        assert_eq!((r, g, b), (0, 255, 0));
+        
+        // Test blue
+        let (r, g, b) = LedTestEffects::hsv_to_rgb(240.0, 1.0, 1.0);
+        assert_eq!((r, g, b), (0, 0, 255));
+    }
+
+    #[test]
+    fn test_flowing_rainbow() {
+        let config = TestEffectConfig {
+            effect_type: TestEffectType::FlowingRainbow,
+            led_count: 10,
+            led_type: LedType::RGB,
+            speed: 1.0,
+        };
+        
+        let colors = LedTestEffects::generate_colors(&config, 0);
+        assert_eq!(colors.len(), 30); // 10 LEDs * 3 bytes each
+    }
+
+    #[test]
+    fn test_group_counting() {
+        let config = TestEffectConfig {
+            effect_type: TestEffectType::GroupCounting,
+            led_count: 20,
+            led_type: LedType::RGB,
+            speed: 1.0,
+        };
+        
+        let colors = LedTestEffects::generate_colors(&config, 0);
+        assert_eq!(colors.len(), 60); // 20 LEDs * 3 bytes each
+        
+        // First 10 should be red
+        assert_eq!(colors[0], 255); // R
+        assert_eq!(colors[1], 0);   // G
+        assert_eq!(colors[2], 0);   // B
+        
+        // Next 10 should be green
+        assert_eq!(colors[30], 0);   // R
+        assert_eq!(colors[31], 255); // G
+        assert_eq!(colors[32], 0);   // B
+    }
+}

src-tauri/src/main.rs

@@ -4,15 +4,17 @@
 mod ambient_light;
 mod display;
 mod led_color;
+mod led_test_effects;
 mod rpc;
 mod screenshot;
 mod screenshot_manager;
 mod screen_stream;
 mod volume;
 
-use ambient_light::{Border, ColorCalibration, LedStripConfig, LedStripConfigGroup};
+use ambient_light::{Border, ColorCalibration, LedStripConfig, LedStripConfigGroup, LedType};
 use display::{DisplayManager, DisplayState};
 use display_info::DisplayInfo;
+use led_test_effects::{LedTestEffects, TestEffectConfig, TestEffectType};
 use paris::{error, info, warn};
 use rpc::{BoardInfo, UdpRpc};
 use screenshot::Screenshot;
@@ -24,6 +26,14 @@ use tauri::{Manager, Emitter, Runtime};
 use regex;
 use tauri::http::{Request, Response};
 use volume::VolumeManager;
+use std::sync::Arc;
+use tokio::sync::RwLock;
+
+// Global static variables for LED test effect management
+static EFFECT_HANDLE: tokio::sync::OnceCell<Arc<RwLock<Option<tokio::task::JoinHandle<()>>>>> =
+    tokio::sync::OnceCell::const_new();
+static CANCEL_TOKEN: tokio::sync::OnceCell<Arc<RwLock<Option<tokio_util::sync::CancellationToken>>>> =
+    tokio::sync::OnceCell::const_new();
 #[derive(Serialize, Deserialize)]
 #[serde(remote = "DisplayInfo")]
 struct DisplayInfoDef {
@@ -138,6 +148,20 @@ async fn patch_led_strip_len(display_id: u32, border: Border, delta_len: i8) ->
     Ok(())
 }
 
+#[tauri::command]
+async fn patch_led_strip_type(display_id: u32, border: Border, led_type: LedType) -> Result<(), String> {
+    let config_manager = ambient_light::ConfigManager::global().await;
+    config_manager
+        .patch_led_strip_type(display_id, border, led_type)
+        .await
+        .map_err(|e| {
+            error!("can not patch led strip type: {}", e);
+            e.to_string()
+        })?;
+
+    Ok(())
+}
+
 #[tauri::command]
 async fn send_colors(offset: u16, buffer: Vec<u8>) -> Result<(), String> {
     ambient_light::LedColorsPublisher::send_colors(offset, buffer)
@@ -148,6 +172,193 @@ async fn send_colors(offset: u16, buffer: Vec<u8>) -> Result<(), String> {
         })
 }
 
+#[tauri::command]
+async fn send_test_colors_to_board(board_address: String, offset: u16, buffer: Vec<u8>) -> Result<(), String> {
+    use tokio::net::UdpSocket;
+
+    let socket = UdpSocket::bind("0.0.0.0:0").await.map_err(|e| {
+        error!("Failed to bind UDP socket: {}", e);
+        e.to_string()
+    })?;
+
+    let mut packet = vec![0x02]; // Header
+    packet.push((offset >> 8) as u8); // Offset high
+    packet.push((offset & 0xff) as u8); // Offset low
+    packet.extend_from_slice(&buffer); // Color data
+
+    socket.send_to(&packet, &board_address).await.map_err(|e| {
+        error!("Failed to send test colors to board {}: {}", board_address, e);
+        e.to_string()
+    })?;
+
+    info!("Sent test colors to board {} with offset {} and {} bytes", board_address, offset, buffer.len());
+    Ok(())
+}
+
+#[tauri::command]
+async fn enable_test_mode() -> Result<(), String> {
+    let publisher = ambient_light::LedColorsPublisher::global().await;
+    publisher.enable_test_mode().await;
+    Ok(())
+}
+
+#[tauri::command]
+async fn disable_test_mode() -> Result<(), String> {
+    info!("🔄 disable_test_mode command called from frontend");
+    let publisher = ambient_light::LedColorsPublisher::global().await;
+    publisher.disable_test_mode().await;
+    info!("✅ disable_test_mode command completed");
+    Ok(())
+}
+
+#[tauri::command]
+async fn is_test_mode_active() -> Result<bool, String> {
+    let publisher = ambient_light::LedColorsPublisher::global().await;
+    Ok(publisher.is_test_mode_active().await)
+}
+
+#[tauri::command]
+async fn start_led_test_effect(
+    board_address: String,
+    effect_config: TestEffectConfig,
+    update_interval_ms: u64,
+) -> Result<(), String> {
+    use tokio::time::{interval, Duration};
+
+    // Enable test mode first
+    let publisher = ambient_light::LedColorsPublisher::global().await;
+    publisher.enable_test_mode().await;
+
+    let handle_storage = EFFECT_HANDLE.get_or_init(|| async {
+        Arc::new(RwLock::new(None))
+    }).await;
+
+    let cancel_storage = CANCEL_TOKEN.get_or_init(|| async {
+        Arc::new(RwLock::new(None))
+    }).await;
+
+    // Stop any existing effect
+    {
+        let mut cancel_guard = cancel_storage.write().await;
+        if let Some(token) = cancel_guard.take() {
+            token.cancel();
+        }
+
+        let mut handle_guard = handle_storage.write().await;
+        if let Some(handle) = handle_guard.take() {
+            let _ = handle.await; // Wait for graceful shutdown
+        }
+    }
+
+    // Start new effect
+    let effect_config = Arc::new(effect_config);
+    let board_address = Arc::new(board_address);
+    let start_time = std::time::Instant::now();
+
+    // Create new cancellation token
+    let cancel_token = tokio_util::sync::CancellationToken::new();
+    let cancel_token_clone = cancel_token.clone();
+
+    let handle = tokio::spawn(async move {
+        let mut interval = interval(Duration::from_millis(update_interval_ms));
+
+        loop {
+            tokio::select! {
+                _ = interval.tick() => {
+                    let elapsed_ms = start_time.elapsed().as_millis() as u64;
+                    let colors = LedTestEffects::generate_colors(&effect_config, elapsed_ms);
+
+                    // Send to board
+                    if let Err(e) = send_test_colors_to_board_internal(&board_address, 0, colors).await {
+                        error!("Failed to send test effect colors: {}", e);
+                        break;
+                    }
+                }
+                _ = cancel_token_clone.cancelled() => {
+                    info!("LED test effect cancelled gracefully");
+                    break;
+                }
+            }
+        }
+        info!("LED test effect task ended");
+    });
+
+    // Store the handle and cancel token
+    {
+        let mut handle_guard = handle_storage.write().await;
+        *handle_guard = Some(handle);
+
+        let mut cancel_guard = cancel_storage.write().await;
+        *cancel_guard = Some(cancel_token);
+    }
+
+    Ok(())
+}
+
+#[tauri::command]
+async fn stop_led_test_effect(board_address: String, led_count: u32, led_type: led_test_effects::LedType) -> Result<(), String> {
+    // Stop the effect task first
+
+    info!("🛑 Stopping LED test effect - board: {}", board_address);
+
+    // Cancel the task gracefully first
+    if let Some(cancel_storage) = CANCEL_TOKEN.get() {
+        let mut cancel_guard = cancel_storage.write().await;
+        if let Some(token) = cancel_guard.take() {
+            info!("🔄 Cancelling test effect task gracefully");
+            token.cancel();
+        }
+    }
+
+    // Wait for the task to finish
+    if let Some(handle_storage) = EFFECT_HANDLE.get() {
+        let mut handle_guard = handle_storage.write().await;
+        if let Some(handle) = handle_guard.take() {
+            info!("⏳ Waiting for test effect task to finish");
+            match handle.await {
+                Ok(_) => info!("✅ Test effect task finished successfully"),
+                Err(e) => warn!("⚠️ Test effect task finished with error: {}", e),
+            }
+        }
+    }
+
+    // Turn off all LEDs
+    let bytes_per_led = match led_type {
+        led_test_effects::LedType::RGB => 3,
+        led_test_effects::LedType::RGBW => 4,
+    };
+    let buffer = vec![0u8; (led_count * bytes_per_led) as usize];
+
+    send_test_colors_to_board_internal(&board_address, 0, buffer).await
+        .map_err(|e| e.to_string())?;
+
+    info!("💡 Sent LED off command");
+
+    // Disable test mode to resume normal publishing
+    let publisher = ambient_light::LedColorsPublisher::global().await;
+    publisher.disable_test_mode().await;
+
+    info!("🔄 Test mode disabled, normal publishing resumed");
+    info!("✅ LED test effect stopped completely");
+
+    Ok(())
+}
+
+// Internal helper function
+async fn send_test_colors_to_board_internal(board_address: &str, offset: u16, buffer: Vec<u8>) -> Result<(), Box<dyn std::error::Error + Send + Sync>> {
+    use tokio::net::UdpSocket;
+
+    let socket = UdpSocket::bind("0.0.0.0:0").await?;
+
+    let mut packet = vec![0x02]; // Header
+    packet.push((offset >> 8) as u8); // Offset high
+    packet.push((offset & 0xff) as u8); // Offset low
+    packet.extend_from_slice(&buffer); // Color data
+
+    socket.send_to(&packet, board_address).await?;
+    Ok(())
+}
+
 #[tauri::command]
 async fn move_strip_part(
     display_id: u32,
@@ -337,20 +548,7 @@ fn handle_ambient_light_protocol<R: Runtime>(
 async fn main() {
     env_logger::init();
 
-    // Debug: Print available displays
+    // Initialize display info (removed debug output)
-    match display_info::DisplayInfo::all() {
-        Ok(displays) => {
-            println!("=== AVAILABLE DISPLAYS ===");
-            for (index, display) in displays.iter().enumerate() {
-                println!("  Display {}: ID={}, Scale={}, Width={}, Height={}",
-                    index, display.id, display.scale_factor, display.width, display.height);
-            }
-            println!("=== END DISPLAYS ===");
-        }
-        Err(e) => {
-            println!("Error getting display info: {}", e);
-        }
-    }
 
     tokio::spawn(async move {
         let screenshot_manager = ScreenshotManager::global().await;
@@ -383,7 +581,14 @@ async fn main() {
             get_led_strips_sample_points,
             get_one_edge_colors,
             patch_led_strip_len,
+            patch_led_strip_type,
             send_colors,
+            send_test_colors_to_board,
+            enable_test_mode,
+            disable_test_mode,
+            is_test_mode_active,
+            start_led_test_effect,
+            stop_led_test_effect,
             move_strip_part,
             reverse_led_strip_part,
             set_color_calibration,

src/App.tsx

@@ -1,7 +1,8 @@
-import { Routes, Route } from '@solidjs/router';
+import { Routes, Route, useLocation, A } from '@solidjs/router';
 import { LedStripConfiguration } from './components/led-strip-configuration/led-strip-configuration';
 import { WhiteBalance } from './components/white-balance/white-balance';
-import { createEffect } from 'solid-js';
+import { LedStripTest } from './components/led-strip-test/led-strip-test';
+import { createEffect, createSignal } from 'solid-js';
 import { invoke } from '@tauri-apps/api/core';
 import { setLedStripStore } from './stores/led-strip.store';
 import { LedStripConfigContainer } from './models/led-strip-config';
@@ -9,23 +10,45 @@ import { InfoIndex } from './components/info/info-index';
 import { DisplayStateIndex } from './components/displays/display-state-index';
 
 function App() {
+  const location = useLocation();
+  const [previousPath, setPreviousPath] = createSignal<string>('');
+
+  // Monitor route changes and cleanup LED tests when leaving the test page
+  createEffect(() => {
+    const currentPath = location.pathname;
+    const prevPath = previousPath();
+
+    // Check if we're leaving the LED test page
+    const isLeavingTestPage = prevPath === '/led-strip-test' && currentPath !== '/led-strip-test';
+
+    if (isLeavingTestPage) {
+      // The LED test component will handle stopping the test effect via onCleanup
+      // We just need to ensure test mode is disabled to resume normal LED publishing
+      invoke('disable_test_mode').catch((error) => {
+        console.error('Failed to disable test mode:', error);
+      });
+    }
+
+    // Update previousPath after the condition check
+    setPreviousPath(currentPath);
+  });
+
   createEffect(() => {
     invoke<LedStripConfigContainer>('read_config').then((config) => {
-      console.log('App: read config', config);
       setLedStripStore({
         strips: config.strips,
         mappers: config.mappers,
         colorCalibration: config.color_calibration,
       });
     }).catch((error) => {
-      console.error('App: Failed to read config:', error);
+      console.error('Failed to read config:', error);
     });
   });
 
   return (
     <div class="min-h-screen bg-base-100" data-theme="dark">
-      {/* Navigation */}
+      {/* Fixed Navigation */}
-      <div class="navbar bg-base-200 shadow-lg">
+      <div class="navbar bg-base-200 shadow-lg fixed top-0 left-0 right-0 z-50">
         <div class="navbar-start">
           <div class="dropdown">
             <div tabindex="0" role="button" class="btn btn-ghost lg:hidden">
@@ -34,20 +57,22 @@ function App() {
               </svg>
             </div>
             <ul tabindex="0" class="menu menu-sm dropdown-content mt-3 z-[1] p-2 shadow bg-base-100 rounded-box w-52">
-              <li><a href="/info" class="text-base-content">基本信息</a></li>
+              <li><A href="/info" class="text-base-content">基本信息</A></li>
-              <li><a href="/displays" class="text-base-content">显示器信息</a></li>
+              <li><A href="/displays" class="text-base-content">显示器信息</A></li>
-              <li><a href="/led-strips-configuration" class="text-base-content">灯条配置</a></li>
+              <li><A href="/led-strips-configuration" class="text-base-content">灯条配置</A></li>
-              <li><a href="/white-balance" class="text-base-content">白平衡</a></li>
+              <li><A href="/white-balance" class="text-base-content">白平衡</A></li>
+              <li><A href="/led-strip-test" class="text-base-content">灯带测试</A></li>
             </ul>
           </div>
           <a class="btn btn-ghost text-xl text-primary font-bold">环境光控制</a>
         </div>
         <div class="navbar-center hidden lg:flex">
           <ul class="menu menu-horizontal px-1">
-            <li><a href="/info" class="btn btn-ghost text-base-content hover:text-primary">基本信息</a></li>
+            <li><A href="/info" class="btn btn-ghost text-base-content hover:text-primary">基本信息</A></li>
-            <li><a href="/displays" class="btn btn-ghost text-base-content hover:text-primary">显示器信息</a></li>
+            <li><A href="/displays" class="btn btn-ghost text-base-content hover:text-primary">显示器信息</A></li>
-            <li><a href="/led-strips-configuration" class="btn btn-ghost text-base-content hover:text-primary">灯条配置</a></li>
+            <li><A href="/led-strips-configuration" class="btn btn-ghost text-base-content hover:text-primary">灯条配置</A></li>
-            <li><a href="/white-balance" class="btn btn-ghost text-base-content hover:text-primary">白平衡</a></li>
+            <li><A href="/white-balance" class="btn btn-ghost text-base-content hover:text-primary">白平衡</A></li>
+            <li><A href="/led-strip-test" class="btn btn-ghost text-base-content hover:text-primary">灯带测试</A></li>
           </ul>
         </div>
         <div class="navbar-end">
@@ -55,13 +80,14 @@ function App() {
         </div>
       </div>
 
-      {/* Main Content */}
+      {/* Main Content with top padding to account for fixed navbar */}
-      <main class="container mx-auto p-4">
+      <main class="container mx-auto p-4 pt-20">
         <Routes>
           <Route path="/info" component={InfoIndex} />
           <Route path="/displays" component={DisplayStateIndex} />
           <Route path="/led-strips-configuration" component={LedStripConfiguration} />
           <Route path="/white-balance" component={WhiteBalance} />
+          <Route path="/led-strip-test" element={<LedStripTest />} />
         </Routes>
       </main>
     </div>

src/components/led-strip-configuration/led-count-control-panel.tsx

@@ -1,8 +1,10 @@
 import { invoke } from '@tauri-apps/api/core';
-import { Component, createMemo, For, JSX, splitProps } from 'solid-js';
+import { Component, createMemo, For, JSX, splitProps, useContext } from 'solid-js';
 import { DisplayInfo } from '../../models/display-info.model';
 import { ledStripStore } from '../../stores/led-strip.store';
 import { Borders } from '../../constants/border';
+import { LedType } from '../../models/led-strip-config';
+import { LedStripConfigurationContext } from '../../contexts/led-strip-configuration.context';
 
 type LedCountControlItemProps = {
   displayId: number;
@@ -11,6 +13,8 @@ type LedCountControlItemProps = {
 };
 
 const LedCountControlItem: Component<LedCountControlItemProps> = (props) => {
+  const [stripConfiguration, { setHoveredStripPart }] = useContext(LedStripConfigurationContext);
+
   const config = createMemo(() => {
     return ledStripStore.strips.find(
       (s) => s.display_id === props.displayId && s.border === props.border
@@ -45,7 +49,7 @@ const LedCountControlItem: Component<LedCountControlItemProps> = (props) => {
     const target = e.target as HTMLInputElement;
     const newValue = parseInt(target.value);
     const currentLen = config()?.len || 0;
-    
+
     if (!isNaN(newValue) && newValue >= 0 && newValue <= 1000) {
       const deltaLen = newValue - currentLen;
       if (deltaLen !== 0) {
@@ -65,8 +69,41 @@ const LedCountControlItem: Component<LedCountControlItemProps> = (props) => {
     }
   };
 
+  const handleLedTypeChange = (e: Event) => {
+    const target = e.target as HTMLSelectElement;
+    const newType = target.value as LedType;
+
+    invoke('patch_led_strip_type', {
+      displayId: props.displayId,
+      border: props.border,
+      ledType: newType,
+    }).catch((e) => {
+      console.error(e);
+    });
+  };
+
+  const onMouseEnter = () => {
+    setHoveredStripPart({
+      displayId: props.displayId,
+      border: props.border,
+    });
+  };
+
+  const onMouseLeave = () => {
+    setHoveredStripPart(null);
+  };
+
   return (
-    <div class="card bg-base-100 border border-base-300/50 p-2">
+    <div
+      class="card bg-base-100 border border-base-300/50 p-2 transition-all duration-200 cursor-pointer"
+      classList={{
+        'ring-2 ring-primary bg-primary/20 border-primary':
+          stripConfiguration.hoveredStripPart?.border === props.border &&
+          stripConfiguration.hoveredStripPart?.displayId === props.displayId,
+      }}
+      onMouseEnter={onMouseEnter}
+      onMouseLeave={onMouseLeave}
+    >
       <div class="flex flex-col gap-1">
         <div class="text-center">
           <span class="text-xs font-medium text-base-content">
@@ -107,6 +144,18 @@ const LedCountControlItem: Component<LedCountControlItemProps> = (props) => {
             +
           </button>
         </div>
+
+        <div class="mt-1">
+          <select
+            class="select select-xs w-full text-xs"
+            value={config()?.led_type || LedType.RGB}
+            onChange={handleLedTypeChange}
+            title="LED类型"
+          >
+            <option value={LedType.RGB}>RGB</option>
+            <option value={LedType.RGBW}>RGBW</option>
+          </select>
+        </div>
       </div>
     </div>
   );
@@ -114,7 +163,7 @@ const LedCountControlItem: Component<LedCountControlItemProps> = (props) => {
 
 type LedCountControlPanelProps = {
   display: DisplayInfo;
-} & JSX.HTMLAttributes<HTMLElement>;
+} & JSX.HTMLAttributes<HTMLDivElement>;
 
 export const LedCountControlPanel: Component<LedCountControlPanelProps> = (props) => {
   const [localProps, rootProps] = splitProps(props, ['display']);

src/components/led-strip-configuration/led-strip-configuration.tsx

@@ -19,19 +19,17 @@ export const LedStripConfiguration = () => {
   createEffect(() => {
     invoke<string>('list_display_info').then((displays) => {
       const parsedDisplays = JSON.parse(displays);
-      console.log('LedStripConfiguration: Loaded displays:', parsedDisplays);
       setDisplayStore({
         displays: parsedDisplays,
       });
     }).catch((error) => {
-      console.error('LedStripConfiguration: Failed to load displays:', error);
+      console.error('Failed to load displays:', error);
     });
 
     invoke<LedStripConfigContainer>('read_led_strip_configs').then((configs) => {
-      console.log('LedStripConfiguration: Loaded LED strip configs:', configs);
       setLedStripStore(configs);
     }).catch((error) => {
-      console.error('LedStripConfiguration: Failed to load LED strip configs:', error);
+      console.error('Failed to load LED strip configs:', error);
     });
   });
 
@@ -86,6 +84,7 @@ export const LedStripConfiguration = () => {
     LedStripConfigurationContextType[0]
   >({
     selectedStripPart: null,
+    hoveredStripPart: null,
   });
 
   const ledStripConfigurationContextValue: LedStripConfigurationContextType = [
@@ -96,6 +95,11 @@ export const LedStripConfiguration = () => {
           selectedStripPart: v,
         });
       },
+      setHoveredStripPart: (v) => {
+        setLedStripConfiguration({
+          hoveredStripPart: v,
+        });
+      },
     },
   ];
 
@@ -135,10 +139,9 @@ export const LedStripConfiguration = () => {
             </div>
             <div class="h-96 mb-4">
               <DisplayListContainer>
-                {displayStore.displays.map((display) => {
+                {displayStore.displays.map((display) => (
-                  console.log('LedStripConfiguration: Rendering DisplayView for display:', display);
+                  <DisplayView display={display} />
-                  return <DisplayView display={display} />;
+                ))}
-                })}
               </DisplayListContainer>
             </div>
             <div class="text-xs text-base-content/50">

src/components/led-strip-configuration/led-strip-part.tsx

@@ -60,32 +60,16 @@ export const LedStripPart: Component<LedStripPartProps> = (props) => {
     );
 
     if (index === -1) {
-      console.log('🔍 LED: Strip config not found', {
-        displayId: localProps.config.display_id,
-        border: localProps.config.border,
-        availableStrips: ledStripStore.strips.length
-      });
       return;
     }
 
     const mapper = ledStripStore.mappers[index];
     if (!mapper) {
-      console.log('🔍 LED: Mapper not found', { index, mappersCount: ledStripStore.mappers.length });
       return;
     }
 
     const offset = mapper.start * 3;
 
-    console.log('🎨 LED: Updating colors', {
-      displayId: localProps.config.display_id,
-      border: localProps.config.border,
-      stripLength: localProps.config.len,
-      mapperPos: mapper.pos,
-      offset,
-      colorsArrayLength: ledStripStore.colors.length,
-      firstFewColors: Array.from(ledStripStore.colors.slice(offset, offset + 9))
-    });
-
     const colors = new Array(localProps.config.len).fill(null).map((_, i) => {
       const index = offset + i * 3;
       const r = ledStripStore.colors[index] || 0;
@@ -94,12 +78,6 @@ export const LedStripPart: Component<LedStripPartProps> = (props) => {
       return `rgb(${r}, ${g}, ${b})`;
     });
 
-    console.log('🎨 LED: Generated colors', {
-      border: localProps.config.border,
-      colorsCount: colors.length,
-      sampleColors: colors.slice(0, 3)
-    });
-
     setColors(colors);
   });
 
@@ -124,7 +102,19 @@ export const LedStripPart: Component<LedStripPartProps> = (props) => {
     },
   });
 
-
+  const onWheel = (e: WheelEvent) => {
+    if (localProps.config) {
+      invoke('patch_led_strip_len', {
+        displayId: localProps.config.display_id,
+        border: localProps.config.border,
+        deltaLen: e.deltaY > 0 ? 1 : -1,
+      })
+        .then(() => {})
+        .catch((e) => {
+          console.error(e);
+        });
+    }
+  };
 
   return (
     <section
@@ -140,7 +130,7 @@ export const LedStripPart: Component<LedStripPartProps> = (props) => {
           stripConfiguration.selectedStripPart?.displayId ===
             localProps.config?.display_id,
       }}
-
+      onWheel={onWheel}
     >
       <For each={colors()}>{(item) => <Pixel color={item} />}</For>
     </section>

src/components/led-strip-configuration/led-strip-parts-sorter.tsx

@@ -29,7 +29,7 @@ const SorterItem: Component<{ strip: LedStripConfig; mapper: LedStripPixelMapper
   const [dragCurr, setDragCurr] = createSignal<{ x: number; y: number } | null>(null);
   const [dragStartIndex, setDragStartIndex] = createSignal<number>(0);
   const [cellWidth, setCellWidth] = createSignal<number>(0);
-  const [, { setSelectedStripPart }] = useContext(LedStripConfigurationContext);
+  const [stripConfiguration, { setSelectedStripPart, setHoveredStripPart }] = useContext(LedStripConfigurationContext);
   const [rootWidth, setRootWidth] = createSignal<number>(0);
 
   let root: HTMLDivElement;
@@ -38,9 +38,6 @@ const SorterItem: Component<{ strip: LedStripConfig; mapper: LedStripPixelMapper
     if (targetStart === props.mapper.start) {
       return;
     }
-    console.log(
-      `moving strip part ${props.strip.display_id} ${props.strip.border} from ${props.mapper.start} to ${targetStart}`,
-    );
     invoke('move_strip_part', {
       displayId: props.strip.display_id,
       border: props.strip.border,
@@ -151,6 +148,17 @@ const SorterItem: Component<{ strip: LedStripConfig; mapper: LedStripPixelMapper
     }).catch((err) => console.error(err));
   };
 
+  const onMouseEnter = () => {
+    setHoveredStripPart({
+      displayId: props.strip.display_id,
+      border: props.strip.border,
+    });
+  };
+
+  const onMouseLeave = () => {
+    setHoveredStripPart(null);
+  };
+
   const setColor = (fullIndex: number, colorsIndex: number, fullLeds: string[]) => {
     const colors = ledStripStore.colors;
     let c1 = `rgb(${Math.floor(colors[colorsIndex * 3] * 0.8)}, ${Math.floor(
@@ -162,7 +170,6 @@ const SorterItem: Component<{ strip: LedStripConfig; mapper: LedStripPixelMapper
     )}, ${Math.min(Math.floor(colors[colorsIndex * 3 + 2] * 1.2), 255)})`;
 
     if (fullLeds.length <= fullIndex) {
-      console.error('out of range', fullIndex, fullLeds.length);
       return;
     }
 
@@ -221,9 +228,16 @@ const SorterItem: Component<{ strip: LedStripConfig; mapper: LedStripPixelMapper
 
   return (
     <div
-      class="flex mx-2 select-none cursor-ew-resize focus:cursor-ew-resize"
+      class="flex mx-2 select-none cursor-ew-resize focus:cursor-ew-resize transition-colors duration-200"
+      classList={{
+        'bg-primary/20 rounded-lg':
+          stripConfiguration.hoveredStripPart?.border === props.strip.border &&
+          stripConfiguration.hoveredStripPart?.displayId === props.strip.display_id,
+      }}
       onPointerDown={onPointerDown}
       ondblclick={reverse}
+      onMouseEnter={onMouseEnter}
+      onMouseLeave={onMouseLeave}
       ref={root!}
     >
       <div

src/components/led-strip-configuration/screen-view-websocket.tsx

@@ -43,50 +43,35 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
 
   const connectWebSocket = () => {
     if (!isMounted) {
-      console.log('Component not mounted, skipping WebSocket connection');
       return;
     }
 
     const wsUrl = `ws://127.0.0.1:8765`;
-    console.log('Connecting to WebSocket:', wsUrl, 'with displayId:', localProps.displayId);
 
     setConnectionStatus('connecting');
     websocket = new WebSocket(wsUrl);
     websocket.binaryType = 'arraybuffer';
-    console.log('WebSocket object created:', websocket);
 
     websocket.onopen = () => {
-      console.log('WebSocket connected successfully!');
       setConnectionStatus('connected');
 
       // Send initial configuration
       const config = {
         display_id: localProps.displayId,
-        width: localProps.width || 320,  // Reduced from 400 for better performance
+        width: localProps.width || 320,
-        height: localProps.height || 180, // Reduced from 225 for better performance
+        height: localProps.height || 180,
-        quality: localProps.quality || 50  // Reduced from 75 for faster compression
+        quality: localProps.quality || 50
       };
-      console.log('Sending WebSocket configuration:', config);
       websocket?.send(JSON.stringify(config));
     };
 
     websocket.onmessage = (event) => {
-      console.log('🔍 WebSocket message received:', {
-        type: typeof event.data,
-        isArrayBuffer: event.data instanceof ArrayBuffer,
-        size: event.data instanceof ArrayBuffer ? event.data.byteLength : 'N/A'
-      });
-
       if (event.data instanceof ArrayBuffer) {
-        console.log('📦 Processing ArrayBuffer frame, size:', event.data.byteLength);
         handleJpegFrame(new Uint8Array(event.data));
-      } else {
-        console.log('⚠️ Received non-ArrayBuffer data:', event.data);
       }
     };
 
     websocket.onclose = (event) => {
-      console.log('WebSocket closed:', event.code, event.reason);
       setConnectionStatus('disconnected');
       websocket = null;
       
@@ -100,7 +85,6 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
     };
 
     websocket.onerror = (error) => {
-      console.error('WebSocket error:', error);
       setConnectionStatus('error');
     };
   };
@@ -204,7 +188,6 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
 
   // Initialize canvas and resize observer
   onMount(() => {
-    console.log('ScreenViewWebSocket mounted with displayId:', localProps.displayId);
     const context = canvas.getContext('2d');
     setCtx(context);
 
@@ -217,7 +200,6 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
     resizeObserver.observe(root);
 
     // Connect WebSocket
-    console.log('About to connect WebSocket...');
     connectWebSocket();
 
     onCleanup(() => {
@@ -227,17 +209,7 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
     });
   });
 
-  // Debug function to list displays
+
-  const debugDisplays = async () => {
-    try {
-      const result = await invoke('list_display_info');
-      console.log('Available displays:', result);
-      alert(`Available displays: ${result}`);
-    } catch (error) {
-      console.error('Failed to get display info:', error);
-      alert(`Error: ${error}`);
-    }
-  };
 
   // Status indicator
   const getStatusColor = () => {
@@ -275,13 +247,6 @@ export const ScreenViewWebSocket: Component<ScreenViewWebSocketProps> = (props)
         {connectionStatus() === 'connected' && (
           <span>| {fps()} FPS | {frameCount()} frames</span>
         )}
-        <button
-          onClick={debugDisplays}
-          class="ml-2 px-1 py-0.5 bg-blue-600 hover:bg-blue-700 rounded text-xs"
-          title="Debug: Show available displays"
-        >
-          Debug
-        </button>
       </div>
       
       {rootProps.children}

src/components/led-strip-test/led-strip-test.tsx

@@ -0,0 +1,343 @@
+import { createSignal, createEffect, For, Show, onCleanup } from 'solid-js';
+import { invoke } from '@tauri-apps/api/core';
+import { listen } from '@tauri-apps/api/event';
+
+interface BoardInfo {
+  fullname: string;
+  host: string;
+  address: string;
+  port: number;
+  connect_status: 'Connected' | 'Disconnected' | { Connecting: number };
+}
+
+interface TestPattern {
+  name: string;
+  description: string;
+  effect_type: string;
+}
+
+interface TestEffectConfig {
+  effect_type: string;
+  led_count: number;
+  led_type: string;
+  speed: number;
+}
+
+export const LedStripTest = () => {
+  const [boards, setBoards] = createSignal<BoardInfo[]>([]);
+  const [selectedBoard, setSelectedBoard] = createSignal<BoardInfo | null>(null);
+  const [ledCount, setLedCount] = createSignal(60);
+  const [ledType, setLedType] = createSignal<'RGB' | 'RGBW'>('RGB');
+  const [isRunning, setIsRunning] = createSignal(false);
+  const [currentPattern, setCurrentPattern] = createSignal<TestPattern | null>(null);
+  const [animationSpeed, setAnimationSpeed] = createSignal(33); // ~30fps
+
+  // Load available boards and listen for changes
+  createEffect(() => {
+    // Initial load
+    invoke<BoardInfo[]>('get_boards').then((boardList) => {
+      setBoards(boardList);
+      if (boardList.length > 0 && !selectedBoard()) {
+        setSelectedBoard(boardList[0]);
+      }
+    }).catch((error) => {
+      console.error('Failed to load boards:', error);
+    });
+
+    // Listen for board changes
+    const unlisten = listen<BoardInfo[]>('boards_changed', (event) => {
+      const boardList = event.payload;
+      setBoards(boardList);
+
+      // If currently selected board is no longer available, select the first available one
+      const currentBoard = selectedBoard();
+      if (currentBoard) {
+        const stillExists = boardList.find(board =>
+          board.host === currentBoard.host &&
+          board.address === currentBoard.address &&
+          board.port === currentBoard.port
+        );
+
+        if (!stillExists) {
+          // Current board is no longer available, select first available or null
+          setSelectedBoard(boardList.length > 0 ? boardList[0] : null);
+        }
+      } else if (boardList.length > 0) {
+        // No board was selected, select the first one
+        setSelectedBoard(boardList[0]);
+      }
+    });
+
+    // Cleanup listener when effect is disposed
+    onCleanup(() => {
+      unlisten.then((unlistenFn) => unlistenFn());
+    });
+  });
+
+  // Cleanup when component is unmounted
+  onCleanup(() => {
+    if (isRunning() && selectedBoard()) {
+      // Stop the test effect in backend
+      invoke('stop_led_test_effect', {
+        boardAddress: `${selectedBoard()!.address}:${selectedBoard()!.port}`,
+        ledCount: ledCount(),
+        ledType: ledType()
+      }).catch((error) => {
+        console.error('Failed to stop test during cleanup:', error);
+      });
+
+      // Update local state immediately
+      setIsRunning(false);
+      setCurrentPattern(null);
+    }
+  });
+
+
+
+  // Test patterns
+  const testPatterns: TestPattern[] = [
+    {
+      name: '流光效果',
+      description: '彩虹色流光，用于测试灯带方向',
+      effect_type: 'FlowingRainbow'
+    },
+    {
+      name: '十个一组计数',
+      description: '每十个LED一组不同颜色，用于快速计算灯珠数量',
+      effect_type: 'GroupCounting'
+    },
+    {
+      name: '单色扫描',
+      description: '单个LED依次点亮，用于精确测试每个LED位置',
+      effect_type: 'SingleScan'
+    },
+    {
+      name: '呼吸灯',
+      description: '整条灯带呼吸效果，用于测试整体亮度',
+      effect_type: 'Breathing'
+    }
+  ];
+
+
+
+  // Test effect management - now handled by Rust backend
+
+  const startTest = async (pattern: TestPattern) => {
+    if (isRunning()) {
+      await stopTest();
+    }
+
+    if (!selectedBoard()) {
+      console.error('No board selected');
+      return;
+    }
+
+    try {
+      const effectConfig: TestEffectConfig = {
+        effect_type: pattern.effect_type,
+        led_count: ledCount(),
+        led_type: ledType(),
+        speed: 1.0 / (animationSpeed() / 50) // Convert animation speed to effect speed
+      };
+
+      // Start the test effect in Rust backend
+      await invoke('start_led_test_effect', {
+        boardAddress: `${selectedBoard()!.address}:${selectedBoard()!.port}`,
+        effectConfig: effectConfig,
+        updateIntervalMs: animationSpeed()
+      });
+
+      setCurrentPattern(pattern);
+      setIsRunning(true);
+    } catch (error) {
+      console.error('Failed to start test effect:', error);
+    }
+  };
+
+  const stopTest = async () => {
+    if (!selectedBoard()) {
+      setIsRunning(false);
+      setCurrentPattern(null);
+      return;
+    }
+
+    try {
+      // Stop the test effect in Rust backend
+      await invoke('stop_led_test_effect', {
+        boardAddress: `${selectedBoard()!.address}:${selectedBoard()!.port}`,
+        ledCount: ledCount(),
+        ledType: ledType()
+      });
+
+      // Only update UI state after successful backend call
+      setIsRunning(false);
+      setCurrentPattern(null);
+    } catch (error) {
+      console.error('Failed to stop test effect:', error);
+      // Still update UI state even if backend call fails
+      setIsRunning(false);
+      setCurrentPattern(null);
+    }
+  };
+
+
+
+  return (
+    <div class="container mx-auto p-6 space-y-6">
+      <div class="card bg-base-200 shadow-xl">
+        <div class="card-body">
+          <h2 class="card-title text-2xl mb-4">LED Strip Testing</h2>
+          
+          {/* Hardware Selection */}
+          <div class="form-control w-full max-w-xs">
+            <label class="label">
+              <span class="label-text">Select Hardware Board</span>
+              <span class="label-text-alt">
+                {boards().length > 0 ? `${boards().length} device(s) found` : 'Searching...'}
+              </span>
+            </label>
+            <select
+              class="select select-bordered w-full max-w-xs"
+              value={selectedBoard()?.host || ''}
+              onChange={(e) => {
+                const board = boards().find(b => b.host === e.target.value);
+                setSelectedBoard(board || null);
+              }}
+            >
+              <option disabled value="">
+                {boards().length > 0 ? 'Choose a board' : 'No boards found'}
+              </option>
+              <For each={boards()}>
+                {(board) => {
+                  const getStatusIcon = (status: BoardInfo['connect_status']) => {
+                    if (status === 'Connected') return '🟢';
+                    if (typeof status === 'object' && 'Connecting' in status) return '🟡';
+                    return '🔴';
+                  };
+
+                  const getStatusText = (status: BoardInfo['connect_status']) => {
+                    if (status === 'Connected') return 'Connected';
+                    if (typeof status === 'object' && 'Connecting' in status) return 'Connecting';
+                    return 'Disconnected';
+                  };
+
+                  return (
+                    <option value={board.host}>
+                      {getStatusIcon(board.connect_status)} {board.host} ({board.address}:{board.port}) - {getStatusText(board.connect_status)}
+                    </option>
+                  );
+                }}
+              </For>
+            </select>
+          </div>
+
+          {/* LED Configuration */}
+          <div class="grid grid-cols-1 md:grid-cols-3 gap-4 mt-4">
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">LED Count</span>
+              </label>
+              <input 
+                type="number" 
+                class="input input-bordered w-full text-center text-lg"
+                value={ledCount()}
+                min="1"
+                max="1000"
+                onInput={(e) => setLedCount(parseInt(e.target.value) || 60)}
+              />
+            </div>
+            
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">LED Type</span>
+              </label>
+              <select 
+                class="select select-bordered w-full"
+                value={ledType()}
+                onChange={(e) => setLedType(e.target.value as 'RGB' | 'RGBW')}
+              >
+                <option value="RGB">RGB</option>
+                <option value="RGBW">RGBW</option>
+              </select>
+            </div>
+            
+            <div class="form-control">
+              <label class="label">
+                <span class="label-text">Animation Speed (ms)</span>
+              </label>
+              <input
+                type="number"
+                class="input input-bordered w-full text-center"
+                value={animationSpeed()}
+                min="16"
+                max="200"
+                step="1"
+                onInput={(e) => setAnimationSpeed(parseInt(e.target.value) || 33)}
+              />
+            </div>
+          </div>
+        </div>
+      </div>
+
+      {/* Test Patterns */}
+      <div class="card bg-base-200 shadow-xl">
+        <div class="card-body">
+          <h3 class="card-title text-xl mb-4">Test Patterns</h3>
+          
+          <div class="grid grid-cols-1 md:grid-cols-2 gap-4">
+            <For each={testPatterns}>
+              {(pattern) => (
+                <div class="card bg-base-100 shadow-md">
+                  <div class="card-body">
+                    <h4 class="card-title text-lg">{pattern.name}</h4>
+                    <p class="text-sm opacity-70 mb-4">{pattern.description}</p>
+                    
+                    <div class="card-actions justify-end">
+                      <Show 
+                        when={currentPattern() === pattern && isRunning()}
+                        fallback={
+                          <button 
+                            class="btn btn-primary"
+                            onClick={() => startTest(pattern)}
+                            disabled={!selectedBoard()}
+                          >
+                            Start Test
+                          </button>
+                        }
+                      >
+                        <button
+                          class="btn btn-error"
+                          onClick={() => stopTest()}
+                        >
+                          Stop Test
+                        </button>
+                      </Show>
+                    </div>
+                  </div>
+                </div>
+              )}
+            </For>
+          </div>
+          
+          <Show when={isRunning()}>
+            <div class="alert alert-info mt-4">
+              <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" class="stroke-current shrink-0 w-6 h-6">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M13 16h-1v-4h-1m1-4h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"></path>
+              </svg>
+              <span>Test pattern "{currentPattern()?.name}" is running on {selectedBoard()?.host}</span>
+            </div>
+          </Show>
+          
+          <Show when={!selectedBoard()}>
+            <div class="alert alert-warning mt-4">
+              <svg xmlns="http://www.w3.org/2000/svg" class="stroke-current shrink-0 h-6 w-6" fill="none" viewBox="0 0 24 24">
+                <path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M12 9v2m0 4h.01m-6.938 4h13.856c1.54 0 2.502-1.667 1.732-2.5L13.732 4c-.77-.833-1.728-.833-2.498 0L3.732 16c-.77.833.192 2.5 1.732 2.5z" />
+              </svg>
+              <span>Please select a hardware board to start testing</span>
+            </div>
+          </Show>
+        </div>
+      </div>
+    </div>
+  );
+};

src/components/white-balance/white-balance.tsx

@@ -38,7 +38,7 @@ export const WhiteBalance = () => {
           setIsFullscreen(true);
         }
       } catch (error) {
-        console.error('Failed to auto enter fullscreen:', error);
+        // Silently handle fullscreen error
       }
     };
 
@@ -101,7 +101,6 @@ export const WhiteBalance = () => {
     const unlisten = listen('config_changed', (event) => {
       const { strips, mappers, color_calibration } =
         event.payload as LedStripConfigContainer;
-      console.log(event.payload);
       setLedStripStore({
         strips,
         mappers,
@@ -121,9 +120,9 @@ export const WhiteBalance = () => {
     const calibration = { ...ledStripStore.colorCalibration };
     calibration[key] = value;
     setLedStripStore('colorCalibration', calibration);
-    invoke('set_color_calibration', { calibration }).catch((error) =>
+    invoke('set_color_calibration', { calibration }).catch(() => {
-      console.log(error),
+      // Silently handle error
-    );
+    });
   };
 
   const toggleFullscreen = async () => {
@@ -138,7 +137,7 @@ export const WhiteBalance = () => {
         setPanelPosition({ x: 0, y: 0 });
       }
     } catch (error) {
-      console.error('Failed to toggle fullscreen:', error);
+      // Silently handle fullscreen error
     }
   };
 
@@ -156,7 +155,9 @@ export const WhiteBalance = () => {
   const reset = () => {
     invoke('set_color_calibration', {
       calibration: new ColorCalibration(),
-    }).catch((error) => console.log(error));
+    }).catch(() => {
+      // Silently handle error
+    });
   };
 
   return (
@@ -266,10 +267,19 @@ export const WhiteBalance = () => {
 
                   <div class="form-control">
                     <label class="label">
-                      <span class="label-text font-semibold text-base-content/70">白色 (W)</span>
+                      <span class="label-text font-semibold text-amber-500">白色 (W)</span>
-                      <div class="badge badge-outline badge-sm">暂未启用</div>
+                      <Value value={ledStripStore.colorCalibration.w} />
                     </label>
-                    <ColorSlider class="from-yellow-50 to-cyan-50" disabled />
+                    <ColorSlider
+                      class="from-amber-100 to-amber-50"
+                      value={ledStripStore.colorCalibration.w}
+                      onInput={(ev) =>
+                        updateColorCalibration(
+                          'w',
+                          (ev.target as HTMLInputElement).valueAsNumber ?? 1,
+                        )
+                      }
+                    />
                   </div>
                 </div>
 
@@ -400,6 +410,23 @@ export const WhiteBalance = () => {
                   />
                 </div>
 
+                <div class="form-control">
+                  <label class="label">
+                    <span class="label-text font-semibold text-amber-500">白色 (W)</span>
+                    <Value value={ledStripStore.colorCalibration.w} />
+                  </label>
+                  <ColorSlider
+                    class="from-amber-100 to-amber-50"
+                    value={ledStripStore.colorCalibration.w}
+                    onInput={(ev) =>
+                      updateColorCalibration(
+                        'w',
+                        (ev.target as HTMLInputElement).valueAsNumber ?? 1,
+                      )
+                    }
+                  />
+                </div>
+
                 <div class="form-control">
                   <label class="label">
                     <span class="label-text font-semibold text-base-content/70">白色 (W)</span>

src/contexts/led-strip-configuration.context.ts

@@ -7,9 +7,14 @@ export type LedStripConfigurationContextType = [
       displayId: number;
       border: Borders;
     } | null;
+    hoveredStripPart: {
+      displayId: number;
+      border: Borders;
+    } | null;
   },
   {
     setSelectedStripPart: (v: { displayId: number; border: Borders } | null) => void;
+    setHoveredStripPart: (v: { displayId: number; border: Borders } | null) => void;
   },
 ];
 
@@ -17,8 +22,10 @@ export const LedStripConfigurationContext =
   createContext<LedStripConfigurationContextType>([
     {
       selectedStripPart: null,
+      hoveredStripPart: null,
     },
     {
       setSelectedStripPart: () => {},
+      setHoveredStripPart: () => { },
     },
   ]);

src/models/led-strip-config.ts

@@ -1,5 +1,10 @@
 import { Borders } from '../constants/border';
 
+export enum LedType {
+  RGB = 'RGB',
+  RGBW = 'RGBW',
+}
+
 export type LedStripPixelMapper = {
   start: number;
   end: number;
@@ -10,6 +15,7 @@ export class ColorCalibration {
   r: number = 1;
   g: number = 1;
   b: number = 1;
+  w: number = 1;
 }
 
 export type LedStripConfigContainer = {
@@ -23,5 +29,6 @@ export class LedStripConfig {
     public readonly display_id: number,
     public readonly border: Borders,
     public len: number,
+    public led_type: LedType = LedType.RGB,
   ) {}
 }