I am going to rework the system so it uses an Easy Pcb and a Pro Mini rather than the Leonardo board. I think I might be seeing a voltage drop in my point to point dupont wiring from the Arduino to the Radio. I'll update you all once I get a chance to make the change. Bill

Sorry, one more mistake. On the board, the UART port connector rotates on 180 degrees. In this case, UART on the Orange PI Zero and UART on the board should be connected with wires.

@hek hi... sorry did not know this would be nice if you could do that... so people can get started with the new stuff !

isn't it just SEXY ?