Secret Door Lock Arduino

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.

Secret door lock arduino.

The complete circuit diagram for our arduino based digital keypad door lock project is shown below. Posted in arduino hacks tagged door lock. You can see a video of how it works below. Hi all i ve done a bunch of modifications to steve hoefer s code for his secret knock detecting door lock.

The first thing you ll need to identify is if your door is a candidate for a capacitive system. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. The arduino board is connected to an lcd and a servo motor. The servo motor is used to push lock or pull unlock the latch on the door.

Using the code posted i was able to re use the secret knock detection algorithm without having to create one on my own. Add an h bridge to the circuit so it can lock and unlock the door. Use a servo to unlock the door rather than this hacked together gear motor slip transmission. In this project i used an arduino uno a piezo speaker and a servo motor.

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. 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. November 05 2015 in. The project uses a stepper motor and stepper driver to open the door and a capacitive sensor to sense taps on the peephole.

Unlock the door with a secret knock. 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. This is a simple project made with arduino uno r3. 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.

Home automation projects projects sensor transducer detector projects tags. If a piezo speaker hears the right number of. Smart bt door lock simple arduino project showcase by arun. Take a multimeter and test the conductivity of metal parts going through the door.