Quadcopter: Typical Control Board Circuit

GPS Sensor (Aircraft Telemetry); Accelerometer and Gyroscope (6 DOF Sensor, Altitude Estimation), USB (Power the Board, CDC, Mass Storage), Processor (Board), JTAG (LPCXpresso Compatible), High Power Leds, Altimeter (Pressure Sensor), Magnetomer (3-Axis Digital Compass), Power Selector (USB or Battery), Battery (Imput), Arms Interface (ESC Output, Analog, Timer Imput), Radio (Wileless Sensor), Card Slot (Up to 32GB, Firmware Upgrading, Data Recording).