Not only to ensure door security this project also make certain to assist in fields like forensics crime investigation personal identification attendance system and there is a lot more.
Fingerprint door lock using arduino circuit diagram.
In that i am using 2 3 digital pins of arduino for data transfer to the fingerprint i tried other pin configurations for this but it didn t work but as i am connecting lcd it also requires same 2 3 digital pins of arduino and it is not possible for me to use 2 and 3 pins of arduino for both lcd and fingerprint sensor for data transfer.
We used analog pins since we need more that 14 digitals pins for this project.
For connecting the keypad with the arduino we are using both analog and digital pins.
Circuit diagram of the fingerprint door unlock system the brain of the circuit is arduino uno mcu board board1.
Make sure you get a fingerprint sensor that works with the arduino through the serial communication.
Code and circuit diagram for smart locking door system using rfid sensor and arduino board.
I am using fingerprint module r307 and lcd together.
The project arduino fingerprint sensor lock is simply fabricated around arduino board.
Circuit diagram explanation digital door lock using arduino circuit diagram.
The default pins for serial communication on the arduino uno are pin 0 rxd and pin 1 txd of the board but we are going to use other pins for serial communication.
First of all connect the fingerprint sensor to the arduino uno.
Code and circuit diagram for bluetooth rc car using arduino.