Password Based Door Lock System Block Diagram

The keypad is an input device that helps to enter a code to open the door.

Password based door lock system block diagram.

Password based door locking system the operation of this system can be described by the above block diagram which consists of blocks as keypad a buzzer an lcd a motor driver and a stepper motor. Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system. This block gives the entered code signals to the microcontroller. If another person arrives it will ask to enter the password again.

After entering a password if it matches with the stored one then the door will unlock for a limited period of time. Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. 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. The various functions of microcontroller are like.

If the password is wrong then door would remain l ock ed enyi. Block diagram of password based door locking system a. We are going to use a microcontroller of 8051 family. In this password based door locking system project a keypad is arranged to open and close the door.

This is the cpu central processing unit of our project. If any unauthorized person enters a wrong password in an attempt to open the door then this system immediately switches a buzzer.