GPIO Event
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The GPIO event triggers when a specific GPIO button is pressed or input is received. The playlist toolbar includes the different GPIO button numbers that you can use to define interactions.
Specify button number: Specify the number of the GPIO button.
Trigger Event on Button: Specify whether the event should trigger when the button is depressed (Down) or when it is released (Up). If you've selected Down, choose one of the following behaviors:
Press (First Touch): The event triggers once at the moment the button is depressed.
Press Continuous: The event triggers the moment the button is depressed, then continues triggering at the specified Repeat interval in milliseconds as long as the button is depressed.
The "button" numbers described above are not the same as GPIO "pin" numbers: Some pins act as power supply or ground, so they are not included in the button numbering scheme. See the Hardware Interfaces section of the hardware manual associated with your player model to view a mapping of buttons to pins.