So I am confused. If i buy the ArduPilot 2.5 Mega, do i need to buy an ArduinoMega 2560 R3 As well?
Also, if I buy the ArduPilot 1 board, can i build it to the 2.5 specs my self?
I guess my real hangup is, what is the ArduPilot actually. It seems like a mystical flying unicorn, that is all important, and your rig will be useless without it. can anyone answer these questions in simple terms?