Companion Cube Christmas Lights Improved With Neopixels

cubes

[Crenn] obtained a string of official companion cube lights from Valve, but being in Australia couldn’t put them to their non-judgemental glory without the use of a step down transformer. They sat on the workbench for a few months until an idea was hatched: replace the bulbs with an Adafruit Neopixel strip, making these wonderful inanimate friends a string of individually addressable RGB LEDs.

The process of converting these cubes required stuffing a very small 9.4mm PCB inside. This PCB was designed in KiCAD thanks to a few classes at the Melbourne hackerspace. The board files were sent off, PCBs received, soldered up, and stuffed into the cubes.

Control is via a Duemilanove with a single IO pin using the Neopixel library. All the code, board files, and schematics are available on the gits. Future improvements might include a 3D printed cable relief and a way to securely mount the PCBs to the inside of the cubes.

Video available below.

Comments

  1. David says:

    Step-down? I thought Australia was 240V??

  2. NewCommentor1283 says:

    im guessing Austrailians hate incandescant bulbs,
    esp. when they are run on a transformer/powersupply…

    it’s hot enough down there, they dont need a heater!

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