"So, against my better judgement, I tried Autotune again on the same craft. Geo Fence was turned off this time and the autotune aggressiveness lowered to half the default value.
It did EXACTLY the same thing again, flipping upside down on the roll…"
"Have you plugged the X8R into the SBUS port or the RC port on the Pixhawk? Not sure if you know this but you need to use the RC port.... confusing labelling first time round.Even if you use the right port I have recently had the same issue - cycling…"
"Yes, you were quite right - I misread your reply initially as stating that both alt and circle had been breached, not just circle.
Assuming it was trying to RTL from autotune as you suggest, still not sure how different that is than manually keeping…"
You are right, next time I'll have to do each axis on a separate battery, and that will help. I'll also turn off Geo Fence and fly as close to the ground as possible in case it does have an issue and crash again.
I would still like…"
"Damn. OK, the error is actually correct. I've just looked at the map view in the log viewer and estimated the distance using Google maps and it looks like it was 30m from home when the error occurred.
I thought I had changed the Circle size to 500m…"
"Hi Marco - the thing is I wasn't outside the Geo Fence. Geo Fence altitude for example was set to 120m to comply with CAA rules (and tested repeatedly earlier in the day) - you should see in the logs I was nowhere near that altitude. I was barely…"
"I'm not sure - I was within the geo fence that was previously setup, so not sure if it somehow thought it was hitting the geo fence, or if the error actually means something completely different. If it is geo fence related, I still don't understand…"
Was flying perfectly well on stock PID settings but wanted to see if autotune could improve things.About 3 minutes into the tuning whilst still on the first axis it suddenly flipped over and crashed without any warning. It looked like an overly…