Gemma Jewel circuit

[chebe]

The NeoPixel Jewel is beautiful. It's like a small NeoPixel ring except that it also has a NeoPixel in the centre. It's perfect for glowing jewel effects, and there are a variety of tutorials on what to do with them. But first we need to assemble the circuit, and usually into the smallest space possible. Adafruit have a lovely wiring diagram in one of their tutorials. But we want to stack the Jewel and the Gemma v2 (the on-board on/off switch is great) back to back.

So, first, solder your wires on to the NeoPixel Jewel.

Solder wires onto NeoPixel Jewel
Photo by chebe

Then solder the other end of the wires to the correct pins on the Gemma. You will probably need to twist/spiral the wires between the boards to do this.

Solder onto Gemma
Photo by chebe

The Jewel is a little smaller than the Gemma, this is what it looks like from the front.

Front of Gemma-Jewel
Photo by chebe

Side shot of the Gemma-Jewel, showing how the wires are somewhat twisted/spun. To ensure no unwanted connections are made I placed a piece of parchment/baking sheet between the two boards.

Side view of Gemma-Jewel
Photo by chebe

Now you're ready for the making-something-to-put-it-in part.