[clug] O/T Digital Position sensing

[Adam Thomas]

Read up on grey codes and optical encoders.

On 11/3/09, Keith Goggin <keith.goggin at bigpond.com> wrote:
> Could anyone recommend some light reading on Digital Position Sensing?
>
>
> I need to know the position of a shaft that can rotate through about 90
> Degrees. I have tried a rather crude setup with a micro-switch but I
> require something a little more sophisticated.
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