This all sounds great, Can one of you guys with the experience in the H bridge circuits publish a design or give a web site that would outline a good building block for the type of circuit. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.541 / Virus Database: 335 - Release Date: 14/11/2003 -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.