Block Diagram Fingerprint Door Lock Circuit Diagram

Want to carry out a project like this but wish to combine password and fingerprint together. Download the project libraries. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments.

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Armature surrounded by a big coil of copper wire forms a solenoid.

Block diagram fingerprint door lock circuit diagram.

Fingerprint door lock circuit diagram. 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. 1 operates using a 12v power supply. I enjoy reading your blog fingerprint based security system and door lock.

The circuit shown in fig. A slug of metal i e. An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v. Can you pls help with the circuit diagram and the list of components.

Circuit diagram of the fingerprint door unlock system. Electronic door lock solenoid arduino fingerprint sensor lock. To add a fingerprint just show the finger on the module and press the add key. It is nothing new but almost similar to an electromagnet.

As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system. It is connected to the output of relay as show in circuit diagram. 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.

The libraries for fingerprint sensor and i2c lcd are easily available. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells.

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