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Old 09-10-2004, 08:38 AM   #1 (permalink)
NX5
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Join Date: Sep 2004
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Question Home-made motion detector alarms

hey,

does any1 no how 2 make motion alarms? ive lukd all ova da internet nd i havnt found a thing. nd those things in da shops are expensive nd bulky

any1 no?
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Old 09-10-2004, 08:44 AM   #2 (permalink)
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you could try a couple of proximity sensors, hook them to your door, put in an inverter thingy... NOT gate i think that is and if the signal breaks the alarm will go off, could also try that magnetically, but there are loads of electronic shops that sell motion sensors, i think you also need some kind of heat sensor as you dont want your alarm going off if something rolls off a shelf or summit like that only when a person moves
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