Amazing! Thanks for releasing the code and files for this - amazing contribution. I was about to build the Firefly nano but really wanted the ESTOP feature so I will build this one if I can figure everything out. I never did this kind of software development but I work in tech and I know C. Hopefully I can contribute in the future.
With the files you provided am I able to get a PCB made for the transmitter and receiver? If not, is it possible to build this without any custom PCBs like Firefly Nano?