Just wanted to Thank Everyone that responded to my post. I was away from my email for a few days. I guess after reviewing the replies, the most cost/time effective soltion for me is to use a PIC with an A/D and the GP2D12 from Sharp. Thanks again, Kevin -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.