The following describes what you need to start construction of the NGcon connectivity board that can be used to initialize, flash and connect to the NG hardware in a comfortable way.
Getting the needed PCBs
Check out the UAVP-NG Shop to order your NGcon PCBs.
Getting the needed parts
Check out the NGcon part list to find out the components you need to build an NGcon.
Solder all parts according to part list. LED1 cathode directs to R5 (triangle to the X3-connector). The first batch of PCB's have TX/RX crossed. Cut the paths on the PCB and cross them lacquer-coated wire.
Description of the connectors and jumpers
For normal operation, set the jumpers as shown above.
For crossover operation with rx/tx lines swapped, set the jumpers as shown above.
To flash a target, set the two pin jumper to enable ponyser compatible operation.
From Left to Right: GND, TXD, RXD, VCC