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Laser Tripwire circuit / photoresistor tutorial

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Published on Jan 3, 2010

I take a cadmium sulphide photoresistor and use it to build a laser tripwire circuit that can trigger pretty much anything.
Cheap photoresistors on Amazon: http://www.amazon.com/exec/obidos/ASI...
Check out my webpage for more videos about electronics! http://www.afrotechmods.com

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