[Corbino]

Originally Posted by Ken Maltby

You could use something like this. And connect it to the port in the spoiler. But those TTL Serial ports are mostly connected to IC devices (like power management IC, IO IC, ect...) They often provide error out for the functional components. There should be one on the board that should work though.

Luck;
Ken

Originally Posted by oren64

You can solder USB cable, cut the cable in half and solder the wires
Or use micro-USB port.

Spoiler:

V-Red(+)
Grounding-Black(-)

RX TX are the data, i almost certain that TX is green (d+), RX is white(d-).

Make sure that the wires don't touch each other or the board.

UP, please help