Large Crystals

The larger crystal is big enough to fit the Circuit Playground Express and a small battery inside, making wiring very simple. Just plug in the battery or USB cable and you're done!

Smaller Crystals

For the smaller crystals, it works best to put a single NeoPixel inside, since the Circuit Playground won't fit. You can also string multiple crystals together to make a hanging lamp or glowing crystal cluster. These are wired as follows:

  • VOUT to +
  • A1 to IN
  • GND to -

If you have more than one crystal, wire each OUT pin to IN on the next NeoPixel in the sequence.

This guide was first published on May 14, 2019. It was last updated on May 14, 2019.

This page (Wiring Diagram) was last updated on Apr 04, 2021.

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