This section assumes that you know how to connect your arduino microcontroller to you.
Secret knock locking door.
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.
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In this project i used an arduino uno a piezo speaker and a servo motor.
Get it as soon as fri sep 18.
This project will take several hours to complete.
In the old movies a little sliding door would open so the doorman could check you out and let you in.
Unlock the door with a secret knock.
Tools supplies and skills.
With ismailsan s electronic lock the secret knock automatically unlocks the door.
Secret knock detecting door lock step 1.
If a piezo speaker hears the right number of.
Lay out and test the.
If the sequence isn t recognized the system resets and listens for knocks again.