The code is for a project that was developed for the Arduino contest on the Instructables web site. There you can find detailed instuctions on how to assemble one for yourself.

The code is exactly the same as any other 4x4x4 LED cube code with some additional transitions that I added. I also found that the Arduino Nano freezes after a while.

There’s a new challenger on the block for the title of the “Worlds Smallest 4x4x4 RGB LED Cube“. At 13x13x36 mm, [nqtronix]’s Cube Pendant is significantly smaller than [HariFun’s ...