Compass E & W are backwards

Archive
1

I recently got a new 3DR GPS Compass after a bad crash. I just finished doing the compass calibration and everything looked good, except my E & W are backwards. My Pixhawk is orientated correctly and my new GPS/compass module is pointing toward the front of the Quad.
When I point the front of the quad towards the N the Flight Data page of the mission planner shows it pointed to the N. When I rotate to the S, it shows pointing S. But when I point the quad to the E is shows as W and pointed to the W it shows E???

Does anyone know what I might have missed.
I’m using 1.3.9 Mission Planner , ArduCopter V3.1.5

Thanks,
Rich

2

If its in a case have you checked that it is the right way up?

Sounds like it is upside down!!

Regards.

Mark.

3

You have to set the compass to rotate 180 in mission planner compass settings. That will fix east west problem. After you do the change recalibrate the compass.

4

Yep, that was it. I clicked the radio button next to the 3DR GPS/Compass, leaving the radio button next to the Manual un-selected. Because of this I didn’t think that whatever was chosen in the drop down list mattered. I guess I was wrong.

I changed the drop down list selection to “ROTATION_NONE”, and clicked the radio button next to the 3DR GPS/Compass, and everything worked great…until a different problem raised its head. :frowning:

Thanks for the help.
Rich