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Home › Magazines › 2006 › July › Direction Sensitive Light Barrier

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Direction Sensitive Light Barrier

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Published in issue 356, July 2006

With two light barriers closely positioned one after the other it is possible to establish in which direction they have been crossed. If, for example, you place it at the entrance of the toilet then you can use it to control the lights: on when entering and off when leaving the room. The circuit for this has many similarities with the modulated light barrier appearing elsewhere in this Summer Circuits issue.

Click below to download a PDF copy of this article from Elektor magazine.

 

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PDF Article (060086-2-UK.pdf)
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Please note. In view of the complexity of international markets, Elektor cannot guarantee the availability of components for this project.

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