Raspberry Pi Used To Unlock Door By Hearing A Dog's Bark [Video]

As a person who was once a dog owner, there's nothing more annoying than bundling yourself up for a long night of doing nothing to only have your pet give you obvious hints they want to go out to do their business. Some households install a pet door that would allow their pets to leave and enter their home with ease, but one dog owner has rigged a Raspberry Pi to automatically unlock a door when it hears his dog bark. David Hunt is the man behind the hack, which he calls the Pi-Rex, by using the Raspberry Pi ,a motor driver PCB circuit and a noise detector circuit.

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