Forgot to give you the connection pinout from the UBW to the WB6DHW board: UBW WB6DHW board TX RX GND Gnd (Pin 2) VCC Vdd (Pin 1) RB0 SDA (Pin 3) RB1 SCL (Pin 4)
A 4 wire cable between the boards is required as shown above. 73, Mike Collins KF4BQ
Forgot to give you the connection pinout from the UBW to the WB6DHW board: UBW WB6DHW board TX RX GND Gnd (Pin 2) VCC Vdd (Pin 1) RB0 SDA (Pin 3) RB1 SCL (Pin 4)
A 4 wire cable between the boards is required as shown above. 73, Mike Collins KF4BQ