I bought these a few months ago, when we we were doing the early work on LoRa. I did some successful configuration of them using the UART-to-USB converter board DAC02 from Dorji and then put them to one side.
In the last week, following the discussions with Geofrancis, it occurred to me that they could be a simple way of converting an off the shelf transmitter to 433 or 458Mhz by sending ppm data from the trainer plug.
I fell at the first hurdle! I can't configure them any more. Using the DRF software, I click on Open and then Read All and all I get is a Time Out Error.
Any one out there got any suggestions? The EN pin is pulled low with a link and I don't think I have damaged them.