Like so many of us, [EducatedAce] has been quelling the quarantine blues by resurrecting old projects and finding new challenges to fill the days. He’s just finished building this blocky macro keypad ...
Arduino Micro has some extra leds that it is tricky to programme. Like almost all Arduinos, has a built-in led – the green one on the left in the photo. And it has a pair of yellow leds – called TX ...