Sure, the physical build itself looks great, but it’s what [Michael] did with the firmware that impresses us the most. He’s using an Arduino Mega to drive the 7x7x7 cube and manages to squeeze out ...

We get a lot of tips about LED cubes. They’re a great build to explore a lot of different things, from the circuit design, to current source and sink, and of course there’s the firmware. Why don’t we ...