I am using Navio2 together with a quadcopter. After initial setup and tuning, stabilize and position hold modes seem to work fine. However, when put into RTL the copter just hovers at the current position. When attempting to fly a mission loaded via APM Planner, the copter takes off to about half off the specified altitude, then starts declining. It never manages to really start navigating towards waypoints. At one time, it tried to speed up again but ended up flipping over and crashing.
log_16_2018-11-19-09-39-07.bin (1.0 MB)
Attached is a log file where the following was tried:
Takeoff and fly a mission containing some waypoints. The takeoff altitude was set to 2 meters, but as can be seen it only reaches approx 1.5 m before starting to decline.
Manually fly the copter a bit away from the home position, and switch to RTL. As can bee seen the copter does not move when set to RTL mode.
We tried recalibrating Accelerometer/Compass but it still does not work. As mentioned the pos hold mode works fine, so the values should be fine.
We also tried several different settings for the RTL-related parameters without any notable changes.