Secret Knock Detecting Door Lock Using Arduino Pdf

Secret knock trinket code for running a secret knock lock on the adafruit trinket.

Secret knock detecting door lock using arduino pdf.

This is a great gadget for a secret clubhouse and for people like me who always seem to loose their keys. 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.

When a piezo is struck it rings like a bell but instead of producing sound it outputs voltage which generates a number depending on the force. This started out as a bit of a joke project but turned out to be surprisingly accurate at judging knocks. Version 13 10 31 built with arduino ide 1 0 5. A box or door when you provide the correct secret knock.

Secret knock detecting door lock. Protect your secret hideout from intruders with a lock that will only open when it hears the secret knock. This project is based on the original secret knock lock instructable by grathio available below with the following main modifications. So far we ve been using a piezo buzzer only to make noise but we can also use it as a sensor to detect sounds in this case knocks.

Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. Arduino light knock detecting door lock. 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. If the precision is turned all the way up it can even detect people apart even.

Arduino ide to work with the trinket yet follow the introducing trinket https adafru it ceu guide before continuing. Copy and paste the code below into a new sketch and upload it to your trinket.