Hi all I have a bit of a head scratcher (at least to me).
We operate a large octocopter that we have been running with Cube black and the spektreworks carrier board with a Here GPS for sometime and haven’t had any issues with the compass up to this point. we recently updated to Copter 3.6.10 and now we have a weird intermittent compass issue that causes the dreaded toilet bowl.
We calibrated the Here compass (both 1 and 2) both passed no issues and and flew number of successful flights we then had a toilet bowl which lead to a crash.
We fixed the damage and it flew fine a few time then we had the problem resurface. However it is now more persistent.
To start with I turned off the internal compass (number 2) and still the issue persisted. I then turned off compass 1 and while mission planner is showing the error “bad compass health” the aircraft flys fine once a 3d fix is achieved.
So I started a process of elimination initially suspecting that it was the Here unit that was faulty (it was one of the first i ever bought and it has had a hard life) so I put a Here2 on and ran a compass cal (which was successful). Here is the kicker I got the same behavior including the deactivation of compass 1.
I have uploaded the initial log from my flight today where the issue is present while running the Here 1.
Any input would be great as this one has me stumped!00000218.BIN (2.5 MB)