AVR-Chat

--- In AVR-Chat@yahoogroups.com, jay marante <jaythesis@y...> wrote:
> Is driving a stepper thru PWM then to a shift register
> alright? -jay

As another poster mentioned, you can get a controller chip that does 
most or all of the work for you.  Alternatively, you can use a latch 
to provide the phase drive signals to energize the motor's coils 
through appropriate driver transistors.

The book "Easy Step'n" by David Benson describes both methods and 
gives a good background in steppers and driver circuits.

Also, I have some schematics posted of a dividing head controller 
that uses a stepper for positioning.  You can find links to them at:
http://www.kinzers.com/don/BX24/Indexer