Use a MAVLink parameter protocol in MATLAB and communicate with external ground control stations. A sample parameter protocol is provided for sending parameter updates from a simulated unmanned aerial vehicle (UAV) to a ground control station using MAVLink communication protocols. You setup the communication between the two MAVLink components, the UAV and the ground control station. Then, you send and receive parameter updates to tune parameter values for the UAV. Finally, if you use QGroundControl© as a ground control station, you can get these parameter updates from QGroundControl and see them reflected in the program window.