If a piezo speaker hears the right number of.
Secret knock detecting door lock report.
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If it hears the right number of knocks in the right cadence it triggers the motor to turn the deadbolt and unlock the door.
In this project i used an arduino uno a piezo speaker and a servo motor.
Circuit digest 18 794 views.
Abstractthe project idea was to build a knock detecting in building knock detecting door lock we useddoor lock which can identify the specific knocking micro controllers pattern detecting algorithms pattern and unlock the door if the pattern is touch sensor circuit and password detect system correct.
The leds shown in figure 9 1 serve as indicators of your lock s status.
Secret knock detecting door lock using arduino duration.
Secret knock detecting door lock.
Unlock the door with a secret knock.
Hi all i ve done a bunch of modifications to steve hoefer s code for his secret knock detecting door lock.
Protect your secret hideout from intruders with a lock that will only open when it hears the secret knock.
Watch any movie about the years of prohibition and you ll probably see character gain admittance to a speakeasy by using a secret knock on the door.
Smart knock detecting door lock project using arduino uno.
This is the changes that i ve made added a hall effect sensor to determine if the door is open or closed swapped the gear motor with a servo added a serial lcd feedback screen added a yellow led added a bunch of extra features.
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Security is a major concern in our day to day life and digital locks have become an important part of these security systems.
If the precision is turned all the.
If the sequence isn t recognized the system resets and listens for knocks again.
This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks.
Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock.
There are many types of security systems available to secure our place.
In the old movies a little sliding door would.
