"Yes I actually finished troubleshooting today and from the looks of it, it is the magnetometer. It starts to work, then sometimes it reports back 'not healthy' when doing test->compass in CLI. I've disconnected it and now I have…"
duane's Discussions
Forever yawing
Started this discussion. Last reply by Jay Feb 18, 2012. 23 Replies 0 Likes
Had a crash and now when connected to mission planner yaw is continuously changing. It starts at 360 and counts down. I created a short video…Continue
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DeveloperRandy replied to duane's discussion Forever yawing
"@Jay,
Do you have more details? like the board you're using (presumably APM1). Do you have a compass attached? Is it a new build (i.e. you've always had the problem) or something that just…"
duane replied to Johann Van Niekerk's discussion Magneto meter Issue cause of yaw problems ?"I had a similiar issue recently: http://www.diydrones.com/forum/topics/forever-yawing.
For me if you click on the Status tab, the yaw value was constantly counting down while the compass counted down as well. In your video we cannot tell…"
Chris replied to duane's discussion Forever yawing"Yep, ive erased the eeprom and so on. but doesnt work.
ive no more ideas."
DeveloperRandy replied to duane's discussion Forever yawing
"hmm...i have no idea. I've spent a lot of time with the compass and APM and I've never seen what you're describing.
presumably erasing your eeprom doesn't help (start CLI, setup, reset)?
If that doesn't help, i'm…"
Chris replied to duane's discussion Forever yawing"U can ask, thats why we write here. ;)
If i let my apm a while on my desk, the yawing is less, but it dont stops. the groundcourse and the yaw are spinning. after a while more less, but they do.
and, if i disconnect the apm, and dont move my apm,…"
DeveloperRandy replied to duane's discussion Forever yawing
"Weird,
and you're saying that if you enable the mag, your yaw keeps changing and when you disable it it stops changing?! I think perhaps what you're seeing is the temprary correction to your heading as the APM…"
Chris replied to duane's discussion Forever yawing"Hey Randy
Compass is now enabled and tested in CLI. If i let my Copter stay on my desk, the values are staying too. if i move the copter about roll / pitch / yaw, the values are changing correct.
so my compass is okay, i think."
DeveloperRandy replied to duane's discussion Forever yawing
"Could you try enabling your compass, running the CLI, test, compass and posting the results? that will determine if your compass is broken."
DeveloperRandy replied to duane's discussion Forever yawing
"@basshead,
Just a guess but I expect your problem is not a change in the code but rather that the mag offsets were erased after you upgraded the code. This is normal but they should be recalculated and resaved if you…"
duane replied to duane's discussion Forever yawing"When I run IMU from the CLI test (using 2.0.48 currently) I see:
Init Gyro****IMU
Gyro offsets: -15.00, -34.00, 28.00
Accel offsets: 2.00, -15.00, 16.20
Hit enter to exit
-46, 47, 35810
and then the 35810 number just keeps slowly increasing."
basshead replied to duane's discussion Forever yawing"Damn, my usb connector just broke off, looks like im done testing for a bit unless I can get a small enough soldering iron to put this thing back on. I really really really want the new APM 2.0's to ship"
Chris replied to duane's discussion Forever yawing"Ive the same issue, but if i disable the mag, the heading is stable. if i enable the mag, the yaw is continuously changing. the declination is made."
basshead replied to duane's discussion Forever yawing"You dont need a mag sensor to fly the arducopter... Its to compensate yaw drift in the long run. Duane's problem is his copter is unfly-able.
Do my a favor duane, in the cli, can you run an IMU test and verify that your yaw gyro is outputting…"
Todd Steury replied to duane's discussion Forever yawing"Wait! You don't have a magnetometer? That creates a whole different situation. If my magnetometer is disabled, I get constant yaw drift no matter what I do. I'm surprised that you had the absence of yaw drift in the past.
In the…"
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