At 06:06 PM 2/1/99 -0600, Harley L. Miller wrote:
>I want to start experimenting in driving stepper motors with a 16f84. I
>have an old stepper from a junk disk drive and understand (roughly) how
>to make it step. My question is, can it be driven directly from the PIC
>or do I need to go through something like a 4N26 (just got a batch from
>Mouser)?
>
>Harley L. Miller     hmiller@sound.net
>WB0ROQ


You need something more like a ULN2003 or similar, An optoisolator isn't
going to have enough "poop" to step.