JST Quick Connects
Use these 3-pin JST cables to connect the strip to the Feather. These cables makes it easy to connect and disconnect.
Cut Cables Short
You can cut the cables short using flush diagonal cutters. I made mine rather short, around an 1 inch (24mm) long.
Lay out the components to map out the circuit. We'll connect the male JST connector to the NeoPixel strip and the female connector to the Feather.
You can tin the wires by adding a bit of solder to the exposed wires. This prevents the strands of wires from fraying and makes it easier to solder.
Solder NeoPixel Strip
Now we can attach the wires to the pads on the NeoPixel strip by soldering them in place. Third helping hands can help you keep those wires in place while soldering.
Be sure the white wire (data) goes to the Din pin on the strip. The NeoPixels will not light of white is connected to the Dout pin (on the opposite side of the strip).