I've build a costume drone for fishing (actually casting bait) - still in development, made more than a few model - its 450mm, weigh around 1.8 KG.
works pretty well - but in the last two models are very unstable - sometime they work well sometime they are just unstable, yesterday I had two crashes (EKF Error) - the log indicates it's an EKF fail safe. What actually happened is the drone past the RTL point, kept going and losing altitude until it crashed (meanwhile the RC didn't response)
Does anyone had the same problem? Does anyone knows what causes this? Any suggestions?
Log is attached.
Would really appreciate your help Thanks a lot!