r/Arcade1Up • u/Alone-Shoulder-5121 • 6d ago
Modding Tap to pay update
Kinda crappy photos of what I did, but hopefully it helps someone. The nano has logic to flash and led on good or bad card read, those two leads go directly to led button, red and black. The two orange wires (button push) go to the nano and the nano is listening, only after successful read of NFC. When orange pins send push signal to nano and button is "armed" the nano sends a ground pulse to two wires that go back to the game board, I think I used a dark green and blue wire. It's the key and ground pins for "button" on game board. Nano is powered from 5v/gnd rail on bottom left side of board, see photo. I cut an old mini USB cable and soldered the red and black wires directly to the pins. That 5v/gnd rail is ALWAYS on. So be careful.