Fingerprint Door Lock Using Arduino Circuit Diagram

We used analog pins since we need more that 14 digitals pins for this project.

Fingerprint door lock using arduino circuit diagram. Code and circuit diagram for bluetooth rc car using arduino. Code and circuit diagram for smart locking door system using rfid sensor and arduino board. The project arduino fingerprint sensor lock is simply fabricated around arduino board. Circuit diagram of the fingerprint door unlock system the brain of the circuit is arduino uno mcu board board1.

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. I am using fingerprint module r307 and lcd together. It is based on atmega328 atmega328p and has 14 digital input output i o pins six analogue inputs 32k flash memory 16mhz crystal oscillator a usb connection power jack icsp header and reset button among others. 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.

Make sure you get a fingerprint sensor that works with the arduino through the serial communication. First of all we will make the connection to the 4 4 keypad. Code and circuit diagram for fingerprint sensing door locking system july 3 2019 january 22 2020 admin 0 comments. Circuit diagram explanation digital door lock using arduino circuit diagram.