Instead of the relative horror of driving 40 LEDs with a single Arduino, [Martyn] bit the bullet and got a Maxim 7221 LED driver. Controlling 64 LEDs over a three-wire interface simplified the ...

If you’re looking for a more entry-level Arduino LED cube this 4x4x4 project is just the thing. The cube is able to process 142 frames per second, that is, 1 frame every 7 milliseconds.