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Add a "Shutdown System" button to the Overview page that gracefully powers off the Raspberry Pi. Uses sudo poweroff, consistent with the existing reboot_system action, letting sudo's secure_path handle binary resolution. Co-authored-by: Chuck <chuck@example.com> Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>
LED Matrix Web Interface V3
Modern, production web interface for controlling the LED Matrix display.
Overview
This directory contains the active V3 web interface with the following features:
- Real-time display preview via Server-Sent Events (SSE)
- Plugin management and configuration
- System monitoring and logs
- Modern, responsive UI
- RESTful API
Directory Structure
web_interface/
├── app.py # Main Flask application
├── start.py # Startup script
├── run.sh # Shell runner script
├── requirements.txt # Python dependencies
├── blueprints/ # Flask blueprints
│ ├── api_v3.py # API endpoints
│ └── pages_v3.py # Page routes
├── templates/ # HTML templates
│ └── v3/
│ ├── base.html
│ ├── index.html
│ └── partials/
└── static/ # CSS/JS assets
└── v3/
├── app.css
└── app.js
Running the Web Interface
Standalone (Development)
From the project root:
python3 web_interface/start.py
Or using the shell script:
./web_interface/run.sh
As a Service (Production)
The web interface can run as a systemd service that starts automatically based on the web_display_autostart configuration setting:
sudo systemctl start ledmatrix-web
sudo systemctl enable ledmatrix-web # Start on boot
Accessing the Interface
Once running, access the web interface at:
- Local: http://localhost:5000
- Network: http://:5000
Configuration
The web interface reads configuration from:
config/config.json- Main configurationconfig/secrets.json- API keys and secrets
API Documentation
The V3 API is available at /api/v3/ with the following endpoints:
Configuration
GET /api/v3/config/main- Get main configurationPOST /api/v3/config/main- Save main configurationGET /api/v3/config/secrets- Get secrets configurationPOST /api/v3/config/secrets- Save secrets configuration
Display Control
POST /api/v3/display/start- Start display servicePOST /api/v3/display/stop- Stop display servicePOST /api/v3/display/restart- Restart display serviceGET /api/v3/display/status- Get display service status
Plugins
GET /api/v3/plugins- List installed pluginsGET /api/v3/plugins/<id>- Get plugin detailsPOST /api/v3/plugins/<id>/config- Update plugin configurationGET /api/v3/plugins/<id>/enable- Enable pluginGET /api/v3/plugins/<id>/disable- Disable plugin
Plugin Store
GET /api/v3/store/plugins- List available pluginsPOST /api/v3/store/install/<id>- Install pluginPOST /api/v3/store/uninstall/<id>- Uninstall pluginPOST /api/v3/store/update/<id>- Update plugin
Real-time Streams (SSE)
GET /api/v3/stream/stats- System statistics streamGET /api/v3/stream/display- Display preview streamGET /api/v3/stream/logs- Service logs stream
Development
When making changes to the web interface:
- Edit files in this directory
- Test changes by running
python3 web_interface/start.py - Restart the service if running:
sudo systemctl restart ledmatrix-web
Notes
- Templates and static files use the
v3/prefix to allow for future versions - The interface uses Flask blueprints for modular organization
- SSE streams provide real-time updates without polling