For the larger version:

Connect your NeoPixel ring as shown: Pwr to +, Gnd to -, and DIN to GPIO 19.

The large arcade button has four connection pads: two for the internal LED and two for the switch. Connect the cathode of the LED (the longer leg) to -, and the anode to one of the available + slots on the screw terminal.

The pins on the screw terminal are output only, so we need to use a different GPIO to read the button presses. GPIO 18 is perfect for this. Connect one side of the switch to 18, and the other to G (labeled as -) on the screw terminal.

Sparkle Motion Pinout Diagram

For the Smaller Version

Solder the male JST connector to the back of the board, matching the + and - pads and making sure they line up correctly with your red and black battery wires.

Solder the legs of the momentary switch directly into pins G and M0, to keep the project as compact as possible.