"I'm stuck in same situation now as well, Damn I spend more time researching, and fiddling with this stuff than I spend actually working on the plane, not to mention flying. I guess I'll downgrade from 2.5 to 1.9 and see how it goes."

"Any update on this?  I'm looking to do something  similar."

"Anyone have any hints/tips/tricks to compiling this code in arduino? I have copied libraries, have plenty of boards, but can't get thmn D@MN thing to compile, always get either some parameter not defined or library error message. I have completely…"

"I have been trying to compile this for weeks now, and keep getting errors, I have the teensy 3.q and arduino pro 328. I have copied all the libraries, reinstalled arduino, tried different versions nothing works, any tips???"