This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks.
The secret knock detecting door lock.
In this post let us build a secret knock detecting door lock using arduino which can detect the pattern of your knocks at the door and will only open the lock if the knocking pattern matches with the correct.
Protect your secret hideout from intruders with a lock that will only open when it hears the secret knock.
In this project i used an arduino uno a piezo speaker and a servo motor.
This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks.
If the precision is turned all the way up it can even detect people apart.
November 02 2009 electronics problem solving software.
Programming electronics academy 15 491 views 12 57.
Secret knock detecting door lock.
Unlock the door with a secret knock.
Easy secret knock detector to trigger anything with only an arduino and a few cheap components duration.
The instructable is complete.
If the precision is turned all the.
Share this protect your secret hideout from intruders with a lock that will only open when it hears the secret knock.
If a piezo speaker hears the right number of.
Easy secret knock detector to trigger anything with only an arduino and a few cheap components duration.
Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock.
Secret knock detecting door lock.
Easy secret knock detector to trigger anything with only an arduino and a few cheap components duration.