C UART Interface Technical Details

This book serves as a technical reference to the modified version of the original C UART Interface. This interface is a simple way to control PX4 autopilot system from any nix based system. It uses the MAVLink protocol to communicate with the pixhawk autopilot through a RS-232/UART connection.

The interface uses a special "offboard" control mode, where an external calculator or companion computer is allowed to send information and control the operation of the pixhawk, after some configurations on the pixhawk part.

This mode is useful for many applications, especially when external control is needed for navigation or sensor input and analysis.