I am interested in using the ArduPilot on an autonomous surface marine vehicle to control the rudder. The vehicle control system is predicated on having the vehicle's bow (front) pointed in a steady direction; not on having the vehicle make a specific course over the ground. The vehicle has a flux-gate electronic magnetic compass that provides NMEA data on heading. What would be required to modify the code to replace the GPS heading with heading from the compass?
Added by Payne Kilbourn on February 19, 2009 at 11:32am —