Block Diagram Fingerprint Door Lock Circuit Diagram

Armature surrounded by a big coil of copper wire forms a solenoid. Want to carry out a project like this but wish to combine password and fingerprint together. It is connected to the output of relay as show in circuit diagram.

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An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v.

Block diagram fingerprint door lock circuit diagram.

Download the project libraries. 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. Fingerprint door lock circuit diagram.

A slug of metal i e. If you want to buy the entire combo for the project then click here enrollment code code 1 include adafruit fingerprint h include softwareserial h. History of fingerprint scanners this identification device has been commercialized from the late 19 th century. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells.

Circuit diagram of the fingerprint door unlock system. It is nothing new but almost similar to an electromagnet. The device is the most popular among all the identification devices because of its ease in acquisition and also the number of sources that are available for its data collection. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments.

The circuit shown in fig. 1 operates using a 12v power supply. I enjoy reading your blog fingerprint based security system and door lock. Can you pls help with the circuit diagram and the list of components.

To add a fingerprint just show the finger on the module and press the add key. The libraries for fingerprint sensor and i2c lcd are easily available.

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