I've been working on reverse engineering the ProtoX quadcopter remote and radio protocol.
I finally have it working enough that I can control the Quadcopter from a computer (instead of using their remote).
To do this, I removed the microcontroller from their remote and connected my own (STM32F407) to the radio on it.
This is the very first test, so it's just a quick throttle up/down. I'll make a more complex controller once I get a chance.
Project details:
https://github.com/alvarop/protox