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Keep the Cat Out of the Cradle with Arduino

Matt writes

My wife and I have a baby on the way. As soon as I set up the crib, our cat decided to make it his new bed. Same with the stroller. Obviously we can’t have that, so I whipped up an alarm to scare him off or at least alert us so we can use the water spray bottle on him. It’s a very simple setup. If the cat comes within a certain distance of the device, it plays a tone.


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