Secret Door Lock Arduino

Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. The complete circuit diagram for our arduino based digital keypad door lock project is shown below. Smart bt door lock simple arduino project showcase by arun.

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With ismailsan s electronic lock the secret knock automatically unlocks the door.

Secret door lock arduino.

For the secret knock code i am forever indebted to grathio labs for an instructable for how to build a secret knock detecting lock out of an arduino. Home automation projects projects sensor transducer detector projects tags. In this project i used an arduino uno a piezo speaker and a servo motor. Add an h bridge to the circuit so it can lock and unlock the door.

Arduino detecting door lock knock secret protect your secret hideout from intruders with a lock that will only open when it hears the secret knock. Using the code posted i was able to re use the secret knock detection algorithm without having to create one on my own. November 05 2015 in. Hi all i ve done a bunch of modifications to steve hoefer s code for his secret knock detecting door lock.

Unlock the door with a secret knock. The arduino board is connected to an lcd and a servo motor. First of all we start from the brain of this project which is the arduino uno board. Take a multimeter and test the conductivity of metal parts going through the door.

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 pattern. The first thing you ll need to identify is if your door is a candidate for a capacitive system. This is a simple project made with arduino uno r3. Use a servo to unlock the door rather than this hacked together gear motor slip transmission.

The project uses a stepper motor and stepper driver to open the door and a capacitive sensor to sense taps on the peephole. You can see a video of how it works below. Posted in arduino hacks tagged door lock. If a piezo speaker hears the right number of.

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. The servo motor is used to push lock or pull unlock the latch on the door. The aim is to control a door lock without keys but using a smart phone instead. Make it work in silent mode by removing the knock sensor and attach a capacitance touch sensor to the doorknob and record sequences of touches.

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