EASY HOME CONTROL VIA WEB CHAT

Switch stuff at home from anywhere, with this screen-to-photosensor hack.

BY LEE VON KRAUS

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Photograph by Ed Troxell

If you have pets or children that you need to feed or check on via the internet, here’s a cheap and easy way to control motors, lights, and other devices at home from another computer online, like the one at work. You can set this system up in minutes and it requires no programming. All you need is a webcam, a flashlight, a standard computer running free software, and about $15 worth of analog electronics you can buy at RadioShack.

The system works through a Yahoo Messenger video chat connection between ...

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