Circuit diagram of the fingerprint door unlock system.
Block diagram fingerprint door lock circuit diagram.
The circuit shown in fig.
Want to carry out a project like this but wish to combine password and fingerprint together.
A slug of metal i e.
Electronic door lock solenoid arduino fingerprint sensor lock.
Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments.
To add a fingerprint just show the finger on the module and press the add key.
As arduino uno has an inbuilt 5v voltage regulator a common 12v supply can be used for the whole system.
Armature surrounded by a big coil of copper wire forms a solenoid.
An arduino microcontroller mcu requires only 5v but the solenoid electric lock requires 12v.
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.
Fingerprint door lock circuit diagram.
1 operates using a 12v power supply.
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.
Download the project libraries.
It is nothing new but almost similar to an electromagnet.
It is connected to the output of relay as show in circuit diagram.
The libraries for fingerprint sensor and i2c lcd are easily available.
History of fingerprint scanners this identification device has been commercialized from the late 19 th century.