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headlight alarm

For all things Electrical.

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Posts: 1958
Joined: Thu Sep 01, 2005 11:01 pm
Location: Nowra, NSW

headlight alarm

Post by chunkz »

okay, is there a way i can hook a buzzer up to go off if i leave my lights on when the engine is off/door open

cheers
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Posts: 326
Joined: Mon Aug 23, 2004 10:50 am
Location: Oran Park, NSW

Post by festy »

very simple example, will go off whenever the drivers door is opened while the headlights are on, stops when the door is closed again.
http://www.ee.washington.edu/circuit_ar ... ISCHEM_001
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Posts: 1958
Joined: Thu Sep 01, 2005 11:01 pm
Location: Nowra, NSW

Post by chunkz »

seems hard...
i'll give it a go... go visit dick smith electronics...
cheers mate
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Posts: 4760
Joined: Mon Dec 30, 2002 6:04 am
Location: Adelaide

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Contact murcod

Post by murcod »

Just buy a 12V buzzer from Dick Smith and wire the +12v to a source that's +12v when the headlights are on (eg. dash backlighting) and the other side to your door switch. This will work providing your door switch earths out the interior light- most vehicles are wired this way.
David
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