Yeah, fair enough.
I've had the LC in a transmitter for a number of years now, but haven't used it for a long time. Tried it a couple of days ago and it wouldn't work, so I thought, reflash the firmware, maybe that'll fix something. Of course I've long since lost the original source, so had to start almost from scratch (had an old backup that didn't have the final version), but I've since been using Python and forgotten almost everything I ever knew about C. I could plug in a Teensy 4.0, but it would be massive overkill for my project. I have a couple of other transmitters (vintage ones from the 70's and 80's that I've converted to 2.4GHz) that run fine on an Arduino Nano. I can't remember why I chose to use the LC in this tranny, but there it is, and it is still working perfectly (obviously that wasn't the problem) so I'm reluctant to throw it away.
So, back to Arduino ide and relearning C. Alzheimers hasn't quite set in yet, It just takes me longer to dig stuff out from the archives than it used to.
;-)