Password Based Door Lock System Block Diagram

The various functions of microcontroller are like.

Password based door lock system block diagram.

This block gives the entered code signals to the microcontroller. Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system. Reading the digital input from keypad.

After extending the unlocking process for a fixed period of time the relay energizes and then the door gets locked again. This is the cpu central processing unit of our project. The keypad is an input device that helps to enter a code to open the door. Block diagram of password based door locking system a.

If the password is wrong then door would remain l ock ed enyi. We are going to use a microcontroller of 8051 family. After entering a password if it matches with the stored one then the door will unlock for a limited period of time. In this password based door locking system project a keypad is arranged to open and close the door.

This system demonstrates a password based door lock system using arduino uno wherein once the correct code or password is entered the door is opened and the concerned person is allowed access to the secured area. If any unauthorized person enters a wrong password in an attempt to open the door then this system immediately switches a buzzer.