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Article #844Re: How can I fool the motion sensors connected to our lights?
From: Admin
Date: Mon, 17 Jul 1989 18:24
Date: Mon, 17 Jul 1989 18:24
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> >I have just started work somewhere where the lights are controlled by a system > >of motion sensors-if nothing moves in a pre-determined amount of time > >the lights go off. I find this system most annoying as I am often If the motion sensor is an infrared detector, which it probably is, try using a 755-type timer IC firing an IR LED once every few minutes, seconds, etc. You can pick up all the parts at Radio Shack for under $10. including a small enclosure and battery to power it with. I leave it up to the reader to design the (trivial) circuitry.
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!tut.cis.ohio-state.edu!purdue!ames!ncar!noao!arizona!swituc!root From: root@swituc.UUCP (Admin) Newsgroups: sci.electronics Subject: Re: How can I fool the motion sensors connected to our lights? Summary: infrared? Message-ID: <163@swituc.UUCP> Date: 17 Jul 89 18:24:26 GMT References: <1110.AA1110@americ> Distribution: na Lines: 10