At 02:08 AM 8/31/96 -0800, you wrote:

>Now, I would like expand the concept to be able to drive five (or
>even six) stepper motors off of a single processor.  I however, don't
>have enough available pins to control each motor directly.   I was
>hoping to multiplex the pins.  My thought was to use two pins to
>control the stepping and five pins to select the individual motor in
>question.

We are offering a parts kit that might be just what you need.  It actually
consists of a pre-programmed PIC16C54 with four power transistors and
diodes.  the PIC acts as a stepper motor controller, allowing full & half
stepping, direction control, 8-speed self clocking or external clocking,
free-spin, etc.  Each chip comes with data sheet and hookup diagram as well.

Please feel free to contact me directly (don't reply to list) for more
information.

Todd Peterson
E-LAB Digital Engineering, Inc.

(712) 944-5344
tpeterson@netins.net