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The Rainbow Cube is a nerdy but gorgeous accent light consisting of a 4×4×4 cube of red-green-blue LEDs. Depending on how it’s programmed, colors appear to move, pulse, or wash through the cube in all directions, which is fascinating to watch. The LEDs connect to the PCB base via an ingenious structure consisting of thin PCB supports. I only had a little bit of experience soldering before I made this kit, but I was able to successfully solder it in two hours.

The cube comes preprogrammed with a simple gradient, but there are a lot of fun, full-motion programs online, and of course you can write your own. To make the cube work, you’ll also need a Rainbowduino LED driver board ($20), which attaches to the cube to control the colors.


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