Protect your secret hideout from intruders with a lock that will only open when it hears the secret knock.
The secret knock detecting door lock.
If the precision is turned all the.
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.
Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock.
Unlock the door with a secret knock.
Secret knock detecting door lock.
If a piezo speaker hears the right number of.
This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks.
In this project i used an arduino uno a piezo speaker and a servo motor.
Share this protect your secret hideout from intruders with a lock that will only open when it hears the secret knock.
If the precision is turned all the way up it can even detect people apart.
If you want more instructions than are listed here go here and read all of the steps see all the photos and enjoy.
November 02 2009 electronics problem solving software.
Secret knock detecting door lock.
Easy secret knock detector to trigger anything with only an arduino and a few cheap components duration.
Programming electronics academy 15 490 views 12 57.
This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks.
The instructable is complete.
Easy secret knock detector to trigger anything with only an arduino and a few cheap components duration.