4: Solder row headers
Strip about 1/2" (13mm) of insulation from all of the unconnected wire ends, and twist each to
prevent fraying.
The wires are then soldered to the row headers. Pinch the tip of a wire against the header's
plastic support and wrap the wire around the pin. Solder in place, then use wire cutters to snip
off the starting bit of wire.
The 5-pin header has only a single green wire connected. This is normal. Use the following photo
and wiring diagram for reference:
