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Pi-Rex - Bark Activated Door Opening System [Project]
posted November 6 2013 10:59.25 by spic0m

David Hunt made a fun project to let his dog get out when barks, it involves a bark detector (noise detector circuit) wired to the input of a Raspberry Pi so that it can detect the barks. A motor driver circuit to drive the actuator that unlocks the door, and a weight/pulley system that swings the door open when its unlocked.

[Link: David Hunt]

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