08-19-2016, 10:20 AM
If you're referring to the pc board pads, its the two closest to the edge of the board. You could certainly just use two wires without a switch, but I think you'll find that more of a hassle than you want, for a variety of reasons.
You may find this recent thread helpful: http://forum.pine64.org/showthread.php?tid=2043
You may find this recent thread helpful: http://forum.pine64.org/showthread.php?tid=2043