Hi Glenn
Have you tried the company I work for?
http://www.svskits.com/Resources/Motion/Stpnote.htm

. . . Brian


> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Lynx {Glenn Jones}
> Sent: Friday, February 05, 1999 6:03 PM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [OT]: Bi-Polar stepper motors
>
>
> Hello everyone,
>         sorry for the OT-edness of this post, but i have a little stepper
> motor which i got from a 3.5" disk drive which was used to move the
> read/write heads. The problem is that its bipolar. I plan to drive this
> motor using 4 pic pins connected to buffers, with each buffer's output
> going to one of the 4 wires. then ill set two adjacent pins opposite to
> get a differential. However, in which order should i set and reset the
> pins? btw, i did search the internet for this info, but to no avail,
> everything dealt with unipolar steppers. thanks alot.
>
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