Secret Knock Locking Door

If a piezo speaker hears the right number of. A microphone okay really a speaker presses against the door and listens for knocks. Unlock the door with a secret knock.

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In this project i used an arduino uno a piezo speaker and a servo motor.

Secret knock locking door.

With ismailsan s electronic lock the secret knock automatically unlocks the door. Get it as soon as fri sep 18. Lay out and test the. If the sequence isn t recognized the system resets and listens for knocks again.

Agptek 60kg 130lbs holding force electric magnetic lock for door access control system electromagnet fail safe nc mode. This section assumes that you know how to connect your arduino microcontroller to you. Tools supplies and skills. 4 4 out of 5 stars 166.

If it hears the right number of knocks in the right cadence it triggers the motor to turn the deadbolt and unlock the door. This project will take several hours to complete. Free shipping on your first order shipped by amazon. More buying choices 16 11 2 used new offers.

In the old movies a little sliding door would open so the doorman could check you out and let you in. Secret knock detecting door lock step 1.

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