I'm planning to build my first UAV and I want to use the ArduPilot Mega 2.0 Fully Assembled System.
I'm interested by the DJI Flame Wheel F450 Multi Rotor Quadcopter ARTF Kit and would like to know if it's a good one to start ?
I've already work on ATMega MicroControler but I don't know if the ArduPilot will be fully compatible and easy to implement.
If it's not the best, which one would you recommend ?
What RC system would you recommend (remote and receiver) ? I don't want to spent more than 250$.
Finally where can I find batteries ? I've looked for some on this site, but I didn't find any.
Yes, APM 2 is a good choice for that. It plug and play (no programming required) but if you do want to play with the code it's fully Arduino compatible. Any 7CH or higher radio is fine, as long as it's got at least one three-position toggle switch. Futaba and Spektrum are popular, as are the much cheaper Turnigy 9x series
Check Hobbyking.com for batteries - there's a way to filter to your local warehouse which would have cheaper shipping options. Many batteries from HobbyKing don't come with Deans' connectors or XT60s so you'd have to buy those separately and solder them on yourself. There's not much difference in difficulty to fly different frames like there is for planes. The 450 seems fine but I've never flown one. I know the 3DR frames are pretty rugged which is helpful for a beginner.
I too am considering the DJI 450. As to the ruggedness I found this amusing attempt to break the frame.