the B has a common +5V on the step and direction pins.
I have the b
Jason

On Sat, 2007-10-27 at 16:44 -0700, Kirk Wallace wrote:
> Is this the controller?
> 
> http://www.sei-automation.com/products/StepMotor/Q2HB44.html
> 
> 
> On Sun, 2007-10-28 at 09:52 +1100, Jason Cox wrote:
> > Hi all,
> >     I have just changes out one of my H-bridge for the above controller. I
> > now have one problem, the old driver had step/dir signals referanced to
> > ground. the new one has a common referance to +5v :(
> > 
> > so now fot the question,
> > 
> > can a setup a signal from the parallel port to fake the +5v required for
> > the opto inputs?
> > 
> > anyone have a simple solution for a level conversion / buffer?
> > 
> > Jason Cox
> 


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