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Sun, 13/11/2016
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Thu, 29/09/2016
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Mon, 05/09/2016
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Thu, 24/03/2016
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Tue, 08/03/2016
Department:
Academic year:
2010
Supervisors:
Students:
Hiba Ghanim - Nirmeen Badran
Description of project:
This circuit is a simple wire loop alarm that can be used in doorways, hallways, or any other place the tripwire will be broken by intruders. The circuit has a built in siren, but it can be replaced by a relay to drive an external siren, commercial alarmThe loop can be any type of hookup wire, with a maximum resistance of about 90K. Using very thin wire (40AWG, for example) will make a very sensitive trip wire, but will shorten the distance it can be strung due to the high resistance. The siren can be replaced with a relay to drive external loads