I have an old arcade that I am in the process of converting. I am using an Xarcade tankstick and retropie v3.0 b2 for Pi2.
I am wondering what the best way is to be able to use the factory $.25 coin slot.
Can I just attach to a GPIO or do I need a program to run? or would I be better off purchasing a USB controller of some sort and only programming two buttons, one for each coin slot as I have 2.
Thanks!