Pi4J Picade OS contains an additional Test and the audio test should use the internal loudspeaker.
Compile the JavaFX application
cd /home/pi/java-examples/pure-picade
javac --module-path /opt/javafx-sdk/lib --add-modules=javafx.controls,javafx.media hellopicade/HelloPicade.java
To start HelloPicade in X11-Mode
DISPLAY=:0 XAUTHORITY=/home/pi/.Xauthority sudo -E java --module-path /opt/javafx-sdk/lib --add-modules javafx.controls,javafx.media -Dglass.platform=gtk hellopicade.HelloPicade
To start HelloPicade in DRM
sudo java-kiosk hellopicade.HelloPicade
Check the mapping of the Picade buttons to JavaFX KeyCodes:
| Picade | KeyCode |
|---|---|
| Joystick up | KeyCode.UP |
| Joystick down | KeyCode.DOWN |
| Joystick left | KeyCode.LEFT |
| Joystick right | KeyCode.RIGHT |
| right side black button | KeyCode.ENTER |
| left side black button | KeyCode.ESCAPE |
| all other buttons | no mapping |