Follow-me with Ardupilot, GPS only

Sending GPS location and velocity to a 'companion' computer on the quadcopter, using 'guided mode' to follow my location, and ROI to set yaw. Camera is DJI osmo pocket with locked pitch. The horizontal following is very good but vertical doesn't last long due to the altitude drift between the two GPS modules. Since the camera pitch is locked, this means I end up off-screen after a while in this particular test. High speed caused a vibration failsafe. Visualization in bottom right is from https://plot.ardupilot.org/ More info: https://discuss.ardupilot.org/t/adven...