I just started using a Nexus 7 tablet in a GCS.
The problem is that neither Droidplanner nor Andropilot have any way of doing a preflight calibration for airspeed.
Does anybody know how to do this?
Is there a work around to achieve airspeed calibration until it is added to one of the android apps?
There's no need to do it often.
For calibration; disable ARSPD_USE
You can achieve very good calibration by enabling ARSPD_AUTOCAL , then disable it when you are happy with the results , enable ARSPD_USE
I have done ARSPD_AUTOCAL and that is fine. I am referring to preflight calibration like found in Mission Planner.
When the APM is first plugged in the airspeed is always at a high level even with the plane motionless.
The preflight calibration brings it close to 0.
strange, it might be due to the fact I run a little older Arduplane. -still, do not know why something needs to be done manually.