"I got an PM.INAVErr of 9 through a flight in which the inertial navigation system (the gyro and accelerometer-based) all of a sudden, several times, reported that the quad instantaneously moved many meters in a split second. This has me thinking…"
When I decided to connect my XBees to the APM2.5 today I decided to use Serial2, and not the multiplexed Serial1 (which is also used by the USB). However, when failing to make it work I noticed that every time I restarted the APM Planner 2.0…