Fingerprint Door Lock Circuit Diagram

In this post we will interface a fingerprint sensor module with arduino and will build a fingerprint based biometric security system with door locking.

Fingerprint door lock circuit diagram.

1 operates using a 12v power supply. It is nothing new but almost similar to an electromagnet. Download the project libraries. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells.

I am not a professional so haven t used any editing software like fritz to edit the code. Fingerprint door lock circuit diagram. First the lcd will identify the fingerprint id that was found and show the confidence value for which it matched second the green led will turn on while the red led turns off and finally the relay circuit will activate allowing the door lock supply voltage to flow through thus activating the strike and allowing entry. As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system.

Electronic door lock solenoid arduino fingerprint sensor lock. Can you pls help with the circuit diagram and the list of components. The libraries for fingerprint sensor and i2c lcd are easily available. Armature surrounded by a big coil of copper wire forms a solenoid.

Circuit diagram for arduino keypad door lock. First of all we start from the brain of this project which is the arduino uno board. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments. The circuit shown in fig.

Want to carry out a project like this but wish to combine password and fingerprint together. A slug of metal i e. If you want to buy the entire combo for the project then click here. The arduino board is connected to an lcd and a servo motor.

The complete circuit diagram for our arduino based digital keypad door lock project is shown below. It is connected to the output of relay as show in circuit diagram. Circuit diagram of the fingerprint door unlock system. Arduino controls the complete processes like taking password form keypad module comparing passwords driving buzzer rotating servo motor and sending status to lcd display.

Finger print is considered one of the safest key to lock. Circuit of this project is very simple which contains arduino keypad module buzzer servo motor and lcd. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock.