Each LED has two buttons under it. They are wired in parallel, so if either of them is pushed, the button works. The LED isn’t actually soldered where it passes through the board.

Posted in Arduino Hacks, Musical Hacks Tagged arcade, arcade button, atmega, fighter, Fusion 360, instrument, KiCAD, midi, music, Sanwa ← A Very 2017 Take On A BBC Micro ...

Running out of GPIO pins? Learn how to connect multiple buttons to just one Arduino pin using clever wiring and resistor techniques. Perfect for compact projects, keyboards, or when using small boards ...