> How about a one-PIC (or SX) solution to drive a stepper > motor with proper microstepping PWM with just > step/direction inputs? I'm only mentioning it because > i've already done it. ;o) Me too - we can split the prize - what is it James ? :-) I actually do variable speed microstepping between selected positions as an internal part of a system. . Russell McMahon -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics