Copter flew away in LOITER, RTL and FENCE

ArduCopter Copter 3.1
1

This is my first post on this forum. At beginning sorry for my poor english.

After several flights in manual mode on my quadrocopter I decided to use some auto modes. First was Loiter mode and after switch it on copter flew away (always in same direction- straight forward of me). Also I tried with RTL and the same issue.
I tried to change firmware version to older one, setup again copter- nothing. I don’t have any idea what is the problem.

My board version is 2.5, actual firmware 3.15.
Motors XA2122, props 10x4.5, GPS Ublox NEO-6M, HK20A ESC’s.

2

You should be using an external magnetometer with a copter, which means converting your board to a 2.6 and using the GPS/mag. Instructions are here:
copter.ardupilot.com/wiki/common … rformance/

3

Even if on my GPS module is compass installed?

4

@msadys,
Did you turn off the compass on the APM2.5 when using an external compass following these instructions: http://rover.ardupilot.com/wiki/common-external-magnetometer-for-improved-performance/ ?
Regards,
TCIII GM

5

[quote=“TCIII”]@msadys,
Did you turn off the compass on the APM2.5 when using an external compass following these instructions: http://rover.ardupilot.com/wiki/common-external-magnetometer-for-improved-performance/ ?
Regards,
TCIII GM[/quote]
Yes, I do.

6

I had this happen and found that the compass was 180 deg off. Make sure to use MP and check your compass setting.

7

I checked compass 1000 times and after two weeks or fights with AUTO modes in my quadro I don’t have any idea what is wrong… Also, I replaced compass module with a new one.

8

I had the same problem, it was the compass . In Missionplanner , when connected , make sure the heading that shows on map matches exactly the actual heading . Had to do several compass calibrations but the major problem was the heading in MP was different because in the initial settings-compass ,it was 180 degress yaw and MP showing 180 degrees opposite heading to actual . One more thing was wrong in parameter settings, the quad was an X config but it was + config in settings . All went beautiful ( mine I had to put no yaw in compass settings to get the correct heading then recalcibrate … Flew perfect in Loiter and RTL. Remember to disable the internal magnetometer in APM 2.6 by cutting the small link on the board ( see above ) . Otherwise major conflict between the two will confuse the APM into flyaway .