Secret Door Lock Arduino

The servo motor is used to push lock or pull unlock the latch on the door. 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. Posted in arduino hacks tagged door lock.

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November 05 2015 in.

Secret door lock arduino.

Home automation projects projects sensor transducer detector projects tags. The arduino board is connected to an lcd and a servo motor. The project uses a stepper motor and stepper driver to open the door and a capacitive sensor to sense taps on the peephole. Using the code posted i was able to re use the secret knock detection algorithm without having to create one on my own.

The first thing you ll need to identify is if your door is a candidate for a capacitive system. With ismailsan s electronic lock the secret knock automatically unlocks the door. In this project i used an arduino uno a piezo speaker and a servo motor. This is a simple project made with arduino uno r3.

The complete circuit diagram for our arduino based digital keypad door lock project is shown below. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. The aim is to control a door lock without keys but using a smart phone instead. Hi all i ve done a bunch of modifications to steve hoefer s code for his secret knock detecting door lock.

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. 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. First of all we start from the brain of this project which is the arduino uno board.

Smart bt door lock simple arduino project showcase by arun. 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. Take a multimeter and test the conductivity of metal parts going through the door. 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.

Unlock the door with a secret knock. Use a servo to unlock the door rather than this hacked together gear motor slip transmission. If a piezo speaker hears the right number of. You can see a video of how it works below.

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