Fingerprint Door Lock Circuit Diagram

Can you pls help with the circuit diagram and the list of components.

Fingerprint door lock circuit diagram.

It is nothing new but almost similar to an electromagnet. If you want to buy the entire combo for the project then click here. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments. Arduino controls the complete processes like taking password form keypad module comparing passwords driving buzzer rotating servo motor and sending status to lcd display.

The arduino board is connected to an lcd and a servo motor. The circuit shown in fig. 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.

Circuit diagram of the fingerprint door unlock system. Want to carry out a project like this but wish to combine password and fingerprint together. Armature surrounded by a big coil of copper wire forms a solenoid. A slug of metal i e.

For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells. Circuit diagram for arduino keypad door lock. 1 operates using a 12v power supply. I am not a professional so haven t used any editing software like fritz to edit the code.

Fingerprint door lock circuit diagram. To add a fingerprint just show the finger on the module and press the add key. Finger print is considered one of the safest key to lock. 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.

First of all we start from the brain of this project which is the arduino uno board. In this post we will interface a fingerprint sensor module with arduino and will build a fingerprint based biometric security system with door locking. The complete circuit diagram for our arduino based digital keypad door lock project is shown below. Download the project libraries.

An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v. It is connected to the output of relay as show in circuit diagram. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock.