APS Series Autopilot Platform :size (2.63 inch W x 2.10 inch H x 2.63 inch D) , 30 fully programmable digital I/O lines , 4 RS-232, full duplex UARTS , PWM inputs and outputs for servo control , 12 Analog inputs (12 bit) , 5 VDC supply for analog, Hall-effect, or other sensors , 32-bit RISC processor Onboard non-volatile FRAM for external sensor calibration, waypoint storage, etc. Internal wireless modem with up to 20 mile ...