Fingerprint Door Lock Circuit Diagram

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Fingerprint door lock circuit diagram.

I enjoy reading your blog fingerprint based security system and door lock. Circuit diagram for arduino keypad door lock. Finger print is considered one of the safest key to lock. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments.

Want to carry out a project like this but wish to combine password and fingerprint together. As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system. An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v. If you want to buy the entire combo for the project then click here.

It is nothing new but almost similar to an electromagnet. The circuit shown in fig. Download the project libraries. The libraries for fingerprint sensor and i2c lcd are easily available.

Arduino controls the complete processes like taking password form keypad module comparing passwords driving buzzer rotating servo motor and sending status to lcd display. Circuit of this project is very simple which contains arduino keypad module buzzer servo motor and lcd. Armature surrounded by a big coil of copper wire forms a solenoid. Fingerprint door lock circuit diagram.

To add a fingerprint just show the finger on the module and press the add key. Circuit diagram of the fingerprint door unlock system. 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.

Can you pls help with the circuit diagram and the list of components. 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. Electronic door lock solenoid arduino fingerprint sensor lock. 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. The arduino board is connected to an lcd and a servo motor. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells.