Heading/Compass Issue

ArduCopter Copter 4.0
#1

I have a Navio2 board and the external GPS/Compass

The board is mounted pointing to the ground (Pitch-90) as it’s a SingleCopter and the external GPS/Compass is the right way up but pointing to the rear (Yaw 180)

For some reason, the heading is off by about 30 degrees.

I was hoping that there would be a slider 0-360 where you can offset.

#2

I have found COMPASS_AUTO_ROT (2) to work well in determining orientation during calibration and setting it right. But to answer your question a custom orientation is possible if you want to run the -dev version of firmware:

Compass custom
Compass custom1334×213 42.7 KB

#3

Unfortunately there is a bug in this support which I am trying to get a fix merged for

#4

Thanks for the heads up Andy.

#5

Thanks Dave.
I think the dev version may be a good idea.
Do you have any info on how to so this?

#6

From the Install Firmware page of Mission Planner Cntrl>Q will load the Master (dev) versions. If it doesn’t left click in the main window and try again.

But heed Andy’s warning about the custom compass feature having bugs!!