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 ...

It’s strange how things work out sometimes. For example, way back in the mists of time, I visited a local electronics flea market and picked up an Arduino-ish-based 4x4x4 3D LED cube kit. In fact, it ...