USB color changer PCB
There are two jumper wires on the board. The jumper from the LED voltage supply regulator to the connector wouldn't route well on single-sided board. This will be an ugly jumper if you make a single-sided board, like I did. Another jumper connects the USB power line to a PIC pin.There are additional vias on the ground plane near the MOSFETS. I soldered some wires here to reinforce the ground plane.