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The circuit shown in fig.
Block diagram fingerprint door lock circuit diagram. Armature surrounded by a big coil of copper wire forms a solenoid. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells. 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. History of fingerprint scanners this identification device has been commercialized from the late 19 th century.
Electronic door lock solenoid arduino fingerprint sensor lock. Arduino fingerprint door lock with keypad and lcd. Introductionthe fingerprint door lock as the name suggests is an electronic door lock that can be installed on almost any access point in your house. As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system.
Reason is that rfid card or keys of lock can be stolen password may be leaked. A slug of metal i e. 1 operates using a 12v power supply. Finger print is considered one of the safest key to lock.
The libraries for fingerprint sensor and i2c lcd are easily available. An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v. Fingerprint door lock circuit diagram. Want to carry out a project like this but wish to combine password and fingerprint together.
However thumbnail of every human being is unique so lock will not open unless the same person is present to give the impression of fingerprint. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. The fingerprint module can be directly interfaced with any microcontroller as well as arduino board. It is nothing new but almost similar to an electromagnet.
I enjoy reading your blog fingerprint based security system and door lock. To add a fingerprint just show the finger on the module and press the add key. Fingerprint based security system is the most secured system as compared to other systems. Circuit diagram of the fingerprint door unlock system.
It is connected to the output of relay as show in circuit diagram. It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door s. Can you pls help with the circuit diagram and the list of components.
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