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Subject: IR switching

Date: 02/10/03 at 12:31 PM
Posted by: Ollysops
E-mail: Ollysops@hotmail.com
Message Posted:

How would one design a circuit cheaply so that a light will come on when there is nothing underneath it. I was thinking of using an Ifra red sensor as the device to trigger the switch but I have absolutley no idea how to realise or which componants I should use. I would appreciate your help.
Olly

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