Hi Alex +AD4APg-any info/schematic about how to drive a bipolar stepper motor? Email me directly. Place +ACI-1/2 bridge+ACI- in the subject. And I will send some schematics. Schematics are in GIF or Jpeg format and are too large to post on the list Brian Whittaker SVS+AF8-KITS+AEA-MSN.COM Selling Electronic Surplus, Laser-Galvo and Motion control kits since 1983 ---------------------------------------- -----Original Message----- From: Alessandro Zummo +ADw-azummo+AEA-ITA.FLASHNET.IT+AD4- To: PICLIST+AEA-MITVMA.MIT.EDU +ADw-PICLIST+AEA-MITVMA.MIT.EDU+AD4- Date: Tuesday, March 10, 1998 1:31 PM Subject: Re: Driving step-motor from PIC Il 10-Mar-98, Morgan Olsson scrisse: +AD4- Better efficciency, lower consumption for same hold force, lesse dimension +AD4- and heat. +AD4- ... Well it+ALQ-s all the same. All because the winding usage is more efficient. any info/schematic about how to drive a bipolar stepper motor? -- - +ACo-Alex+ACo- - http://freepage.logicom.it/azummo/