I am building and programming a quadcopter with a friend of mine, everything is going fine (we are flying), but we have one major problem.
The Xbee freezes, it seems to be a hardware problem since one Xbee is transmitting (LED's are blinking) but the other Xbee isn't receiving (LED's are not blinking).
The freezes happen at random moments, before lifting up, in mid air.
The only thing that 'fixes' this is resetting the Arduino, which properly also resets the Xbee.
We are really have no idea what could cause this problem, and how to solve it.
I hope you guys can help us out.
(PS: don't be afraid of getting to technical, we both know quite allot about electronics)