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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.
Block diagram fingerprint door lock circuit diagram. The libraries for fingerprint sensor and i2c lcd are easily available. Download the project libraries. Armature surrounded by a big coil of copper wire forms a solenoid. The circuit shown in fig.
An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v. History of fingerprint scanners this identification device has been commercialized from the late 19 th century. Arduino fingerprint door lock with keypad and lcd. 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.
Circuit diagram of the fingerprint door unlock system. For controlling the door lock you will need a battery source from 7 to 12v i used three 18650 cells. Some examples are pir based security system rfid based security system digital lock system bio matrix systems electronics code lock. Fingerprint based security system is the most secured system as compared to other systems.
Reason is that rfid card or keys of lock can be stolen password may be leaked. 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. 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. It uses a keypad and fingerprint scanner to grant a user access by controlling an electric door s. This optical biometric fingerprint reader with great features and can be embedded into a variety of end products like access control system attendance system safety deposit box car door locking system. I enjoy reading your blog fingerprint based security system and door lock.
1 operates using a 12v power supply. 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. Electronic door lock solenoid arduino fingerprint sensor lock. The fingerprint module can be directly interfaced with any microcontroller as well as arduino board.
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. As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system. In this post we will interface a fingerprint sensor module with arduino and will build a fingerprint based biometric security system with door locking. Finger print is considered one of the safest key to lock.
It is nothing new but almost similar to an electromagnet.
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