MAKE Weekend Projects – Monkey Couch Guardian
I invented the Monkey Couch Guardian, and wrote a how-to so you can build one, too. Combine an Arduino with a proximity sensor, and make an obnoxious device to discourage cats and other fur-shedding pets from jumping on beds and couches. This project will also introduce you to the SPDT relay, a fundamental component of
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MAKE Weekend Projects – Monkey Couch Guardian