You might want to check surplus houses for already built ones. I know All Electronics (http://www.allelectronics.com/) has a wireless PIR ($5.50) and associated receiver ($5.50). -----Original Message----- From: Simon Ethier [mailto:Seth889@STARTREKMAIL.COM] Sent: Tuesday, February 27, 2001 9:22 AM To: PICLIST@MITVMA.MIT.EDU Subject: Re: [EE]: Infrared Detector vs Pet I don't really know ... All I'd like to do is build a cheap but effective "IR" detector that do not triggers with pets like cats ... Thanks ----- Original Message ----- From: "Justin Fielding" To: Sent: Tuesday, February 27, 2001 11:59 AM Subject: Re: [EE]: Infrared Detector vs Pet > I assume that you are talking about IRbeams (which must be broken to trigger > alarm) rather than a PIR detector (using a pyrometer). > > > ----- Original Message ----- > From: "Simon Ethier" > To: > Sent: Tuesday, February 27, 2001 4:07 PM > Subject: [EE]: Infrared Detector vs Pet > > > Hi, I'm wondering.. I heard in a publicity of an alarm company that they > have an infrared detecter which can make the difference between pet and > human (how, I don't know ... ok it don't really "make" the difference, but > the IR won't react to a cat for exemple, but will react to a human) I found > this very cool, especially if you have pet at your house... > > I'd like to build something like that ... Do any of you guys know what is > the trick ? Is it less sensitive ? Does it require a minimum of movement > ... > > Thanks > --- > Simon Ethier > sethier@justine.umontreal.ca > ICQ 66019153 > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > -- > http://www.piclist.com hint: The list server can filter out subtopics > (like ads or off topics) for you. See http://www.piclist.com/#topics > > -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics