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November 5, 2009 Posted by Seçkin Burak Cengiz in Blog

Secret Knock Detecting Door Lock

knock_doorproject using an arduino, a motor, and a piezo sensor which allows you to both record and detect knocking patterns to unlock a door.  The video below does a fantastic job of demonstrating how it works: It’s completely mobile and can be suction cupped to any dead bolt. Press a button to record a new sequence.  Upon detecting the correct sequence of knocks, the motor turns the lock open. 
knock_sensor_layout_and_parts_list1
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Tags: diy door locks, door lock, electronic door locks, elektronik kapı kilidi, knock detecting, knock detecting door lock, programlanabilir kapı kilidi, programlanabilir kapı klidi, sound detected door lock
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