Really interesting project! For selfish reasons (I own one) It would be great to see support for the Spektrum InterLink DX controller at some point. Wireframe recognises mine my but the default axis assignments and sensitivities make controlled flight impossible.

I just took a look online and it appears your radio does not support channel remapping like OpenTX radios would. I did see on page 5 of the manual, there is a slider on the back of the radio to change modes. Potentially one of these modes remaps the channels?

https://www.horizonhobby.com/on/demandware.static/Sites-horizon-us-Site/Sites-horizon-master/default/Manuals/SPMRFTX1-Manual-EN.pdf

Regardless, I know that is not ideal and I will make it a priority to add in software channel mapping. Hopefully over the weekend.

Thanks! Much appreciated.