I have a GPD2846A TF Card MP3 Decoder Board that I want to control with Arduino (most likely a Pro Mini 5V 16MHz). The GPD2846A board has 3 sets of pads to control Previous/Vol-, Play/Pause, and Next/Vol+. A momentary contact between the pads controls the first function, and a longer contact between pads does the second function.
Picture:
Is it possible (or feasible) to use a digital pin on the Arduino as a "simulated" pushbutton?
What I've thought about doing:
- Connect a digital pin configured as an INPUT to one pad and the other pad to ground.
- Run a function that would configure the pinMode from INPUT to (OUTPUT, LOW) with the hope of connecting the pads together through ground and executing one of the MP3 board effects.
- Reconfigure pinMode to INPUT after desired effect achieved