> which others have you tried and what didn't you like about them? I inherited a load of boards with L297 / L293 pairs. The L293 is OK as an inexpensive driver but I'd have been looking for a cheaper IC than the L297 logic/power interface. Its functions are pretty basic, and Microchip have an app note for something similar. Google for Microchip stepper -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist