This guide was first published on Oct 02, 2013. It was last
updated on Oct 02, 2013.
This page (Circuit Diagram) was last updated on Apr 17, 2019.
This diagram uses the original Gemma but you can also use the Gemma v2 or M0 with the exact same wiring!
GEMMA Vout -> NeoPixel Ring Vcc and single FLORA pixel +
GEMMA D1 -> NeoPixel Ring Data IN
GEMMA GND -> NeoPixel Ring Gnd and single FLORA pixel -
NeoPixel Ring Data OUT -> single FLORA pixel inward-facing arrow