This diagram uses the original Gemma but you can also use the Gemma M0 with the exact same wiring!

LED Strip:

  • Gemma Vout -> +5v
  • Gemma D1 -> DI (or DIN on some strips)
  • Gemma GND -> GND

Membrane LED Keypad:

  • Gemma GND -> Center pin
  • Gemma D2 -> Left pin
Note: some generations of NeoPixel strip have their 5V/GND/DI pins in a different order. ALWAYS USE THE PIN LABELS PRINTED ON THE STRIP, don’t just blindly follow the physical order shown in the wiring diagram!
This guide was first published on Dec 17, 2014. It was last updated on Dec 17, 2014. This page (Wiring) was last updated on Jul 19, 2019.