Hi, we are small research group and have a quadcopter from DIYdrones. We would like to experiment on automated landing algorithms. An important thing is that our arducopter will carry a small PC for vision and AI processing. 

I would like to write a very small routine: where the quadcopter is controlled/landed by a human using RC, and I would like to record values of servos, sensors into a text file via USB.

The problem is there arducopter software installed on the quad sends loads of initial messages, and I can't find a documentation what it is sending, why, when.Can I stop this messages, by sending a message.

Or should I remove arducopter loop and install my own loop. But then I cant have the radio remote control listener.

Is there any a simple application CODE which simply communicates with arducopter to retrieve sensor values, which maintains the radio.