I know Halloween is over, but this hack can control a lot more than just a spooky prop in your yard. You can usually pick these motion-detecting lights up for a bargain at the local home goods store. Just be careful, this is a high voltage hack!

Yard-light motion sensors are a cheap and easy way to add some automation to your haunt. Just hook up power to the sensor, hook the output to an outlet, and you can control anything that runs on 120VAC. But what if you want to control something else? It turns out it’s pretty easy to modify these motion sensors so the output just acts like a normal switch or button.

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