Password Based Door Lock System Block Diagram

If any unauthorized person enters a wrong password in an attempt to open the door then this system immediately switches a buzzer.

Password based door lock system block diagram.

This is the cpu central processing unit of our project. 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. After extending the unlocking process for a fixed period of time the relay energizes and then the door gets locked again. If the password is wrong then door would remain l ock ed enyi.

Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system. In this password based door locking system project a keypad is arranged to open and close the door. If another person arrives it will ask to enter the password again. Block diagram of password based door locking system a.

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. Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. This block gives the entered code signals to the microcontroller. 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. The keypad is an input device that helps to enter a code to open the door.