Naysayers: are they pics? i never thought of that (i'm young yet) but i don't think so. They run on too little current and the people at qprox say that they are custom silicon. You be the judge...(read the spec sheet) Marcelo: i've gotten about 18cm out of a qt113 with a large wire mesh for an electrode, and my guess is that they could be pushed to about twice that if you're clever. If you push them that far, make sure your power supply is super stable. you could probably do better with the fancy industrial versions (much more expensive and complicated) good luck- raphael >Date: Tue, 30 Oct 2001 23:38:31 -0200 >From: Marcelo Puhl >Subject: Re: [EE]: Exciting new touch & proximity technology >Would they have a proximity sensor for a 50 cm range or more ? >I need to measure proximity in such a range. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body