Thanks for your advice, I will ask over there.

By the way I did check the logic voltage and it appears to be around 3.8 volts, so well within spec.

Hi, I am trying to get my RFXtrx433XL (board version 5.0, Firmware 1039) working with a Elfin-EE10 (Serial port RS232 to Ethernet serial port device server - Aliexpress link ). The device was tested to confirm it was working and then I followed the instructions in Section 19 of the manual to cut the ...