Hi,
If you need to indicate all the positions of the compass rose you will need an ABSOLUTE ENCODER.
If all you want are the four prime points cattledog's suggestion would be the best and easier to code..
Tom... 
Hi,
If you need to indicate all the positions of the compass rose you will need an ABSOLUTE ENCODER.
If all you want are the four prime points cattledog's suggestion would be the best and easier to code..
Tom...