I've got 2 questions:
1) How much flexible is Parrot AR.Drone platform? I mean, is it possible to connect some external sensors on that platform and handle communication with them, e.g. by UART or any other interface?
2) Is Parrot AR.Drone official source code available? Where can I find it? I've been to Parrot-Developers github website, but there are so many repositories there that I got lost In what programming language is it available (if is available at all)?