MobiFlight Community Support

Hi all,
I was wondering if there is a way to realize a kind of auto calibration for a stepper. What I mean by auto calibration is to let the stepper to move to the home position upon start up by means of a Hall effect sensor etc. I think a Hall effect sensor can be attached to near the rotation axis of the stepper to detect the stepper angle by a small magnet attached to the stepper shaft. Upon reset we can let the stepper run until the sensor “meets” the magnet, then we can move the stepper by certain fixed number of degrees to cancel the offset between the hall sensor and your home position.

Any thoughts??

Thanks for the great tool!!

Normaly thats not needed.

Technical the state of Motor (Position) on startup is the "Zero Point" for this seasson.
If you turn the Motor ( For example 45 degrees for a fuel gauge) then the Motor Controller "remember" this moving. When you correctly STOP Mobiflight ( Not pull USB cable or kill it by ALT/F4) then this "stopping" of MF will send a command to the Motorcontroller thet it should turn back to the Zero Point from startup.

Summary this means.... The Motor not have a physical Zero Point by a Hall sensor..... But it will technical remeber the Startup Position and will turn back to it when you Shoutdown thy System correctly.

Thank you very much for your help. I know the MobiFlight's *return to zero" feature which is great. The only problem is my system is not yet so stable so abnormal shutdown is frequent. I think I should focus on stablization of the system first.

Thank you again!

I know that.

Basicly this is a problem while testing and building only !
If you have a final Cockpit ( Hardware fully assambled) and your Mobiflight Config is finished and working correct then "normaly" there are no longer crashes.

Sure if you have a power shoutdown while flying cause your neighbour cut the Master Power line with his little excavator then you need to recallibrate all your Motors again.
But then i would ask the neighbour to spent you a some bottles of beer .... Then its more comfortable to do this calibration finaly

I actually have the firmware prepared so that you could configure a optical switch to send a 0 signal and the stepper would stop. I have not yet released this feature.