You’ll need the USB-to-serial adapter to talk to the NanoPi. Here is what I bought:
This is needed to set-up IPFire and to community with the NanoPi.
After the IPFire is set-up, and you remove the USB-to-serial adapter, and you are experiencing trouble booting, you may need the 10k ohm resister.
Note: Never connect the power wire for the USB to TTL UART Converter Cable (the USB-to-Serial adapter). Only use the the wires: data RX, data TX, and ground. It is too easy to make a mistake and apply the wrong power voltage.
The black, white, green wires go from the “converter” to the NanoPi. On you device the three connection should be in a similar place. (you may need strong glasses to see the tiny writing on the pc board).
Read thru all of the various articles on the various boards on this page. It should help you get started.
As Jon explained, the USB plug goes to your laptop or desktop computer
You certainly need to open the case and, in practice, the USB-serial is better permanently attached, although that does not require soldering. I drilled a hole in the plastic case. Note that I also identified the USB plug, using coloured tape, because it does not need to be permanently plugged to a computer.