It looks to be a standard quadrature output encoder.
If all you need is cw or ccw, one easy way to do it is to look at the
rising edge of signal a-c. Each time you see it change from low to high,
sample the input b-c. If its high, you are going CW and if its low you
are going CCW.
You can also expand this logic to look at all the edges and with similar
logic, get updates more often.
hope this helps

On Thu, 2002-01-24 at 14:00, Tal Bejerano - AMC wrote:
> Hi 2 All!
>
> Does anyone know how to "translate" this encoder? I want to recognize when
> it's turning right or left.
> I have no idea how to do it...any ideas?
>
> Thanks
>
> Tal
>
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Lawrence Glaister VE7IT              mailto:lg@jfm.bc.ca
1462 Madrona Drive                   http://jfm.bc.ca/
Nanoose Bay, B.C.                    http://members.shaw.ca/cncstuff
Canada          V9P 9C9              http://gspy.sourceforge.net
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