[Guilherme] picked up a SparkFun Button Pad and was taking a closer look at the device when he noticed that it was based off the ATMega328 microcontroller. Since he loves working with MIDI, he thought ...

A macro keypad with several 3x3 keyswitch buttons that utilize an Arduino Pro Micro to extend the functionality of my main keyboard. My primary focus was to add convenient shortcuts for tools that I ...

I'd like a diode component - needed to create a matrix (rows and columns) of pushbuttons, where more than one button can be active at the same time. (I'm using the keypad matrix for now, but I need a ...