I am trying to get the correct heading (yaw angle) of my drone from the IMUs of the Navio2.
It works quite well with arducopter and mission planner, so it is not a sensor issue.
But I have two issues when trying the AHRS Demo
The printed yaw angle is not correct (I assume 0 deg is straight north, isn’t it?)
The two IMUs report different yaw angles.
Any hints what is wrong and how to get the real heading angle?