[simpits-tech] phidgits + Building Guages

Gene Buckle simpits-tech@simpits.org
Fri, 25 Oct 2002 07:00:56 -0700 (PDT)


> > The problem is that everyone and their brother has a neat method of
> > driving a stepper motor, but nobody says anything about *feedback* from
> > that motor.
>
> That's because steppers can't talk back (or they would be servos).
> Fortunately for them, you talk enough to take up their slack ;)
>
A 10 bit extended gray encoder would provide the needed feedback.
However, no one has a built a circuit that will drive a stepper *and*
talk to an extended gray encoder.

g.