Turn your Android device into a fullscreen traffic light simulation for playing
IMPORTANT NOTICE
Multi Ampel is just a simulation. It is not a traffic control system and must never be used to control real road traffic! Always follow local laws and safety regulations.
Multi Ampel simulates a realistic traffic light with cycle directly on your screen. Its intended for children to play with, giving them the feeling of a real traffic light.
- No account, no ads, no tracking, and no internet connection required
- Material You dynamic colors and light/dark theme
- English and german full language support
- Realistic traffic light simulation for playing
- Adjustable phase duration from 3 to 30 seconds
- Double tap lock and unlock to freeze the current phase
- Bluetooth connection with other devices to create traffic light circuits
- Settings bottom sheet
- Maximum screen brightness while the app is open
Several devices can be connected into one synchronized traffic light circuit over Bluetooth Low Energy. The app scans for nearby devices that has the Multi Ampel app and also lists devices that are already paired in the Android Bluetooth settings.
| Circuit type | Devices |
|---|---|
| Construction site light | 2 |
| T junction | 3 |
| Plus crossing | 4 |
Requirements:
- JDK 17 or newer
- Android SDK Platform 35
- Android SDK Build-Tools
Clone the repository and run the release build from the repository root:
./gradlew assembleReleaseOn Windows use gradlew.bat assembleRelease instead. The signed APK is written to:
app/build/outputs/apk/release/app-release.apk
Release signing is configured through keystore.properties in the repository root.