Pi-Rex – Bark Activated Door Opening System with Raspberry Pi

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Continuing our pre-Christmas whimsy, a bark-activated door opener, courtesy of David Hunt (and dog, Lexi):

“She barks at night when she’s left out. She barks early in the morning when she’s left in. So once I recognized the patterns of her barking, I realized that all I needed was something that would let her out when she needed to go for a pee, usually around 6:30 in the morning.”

This comprehensive article includes the code to read in the GPIO from the audio circuit and great images – as you would expect from a professional photographer: http://www.davidhunt.ie/?p=3132

 

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