The Arduino then controls the state of the LED using the active high enable line from the column multiplexer chip. [Alex] wanted more than just a static image to show off on his new display, so he ...

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 ...