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Here's how to convert a wireless doorbell from HomeDepot to close a relay instead of chiming...This whole thing started from a MAKE forum discussion! "With the addition of one capacitor, one relay, and a small piece of wire we can convert an inexpensive wireless doorbell into a remotely controlled relay useful for a wide range of applications. These include remote PC starting, lighting control, Halloween effects control, or virtually anything that can be controlled by a pair of relay contacts." - Link.
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Very cool. I am going to use this to control a fog machine for Halloween. Like you say, the cahllange will be getting a 3v coil. Thanks for the plans.
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It's a nice project, but doesn't the same store sell wireless christmas light controllers for around the same price as the door chime that's basically the end result of this project?
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