Let’s get the obvious question out of the way: why the heck would you want a backlit RGB mouse pad? For years, we’ve been buying mats to give our mice a more comfortable and accurate ride.
[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 ...