Password Door Lock Using 8051

The goal of this project is how to make a password based digital door lock system for your home office university e t c.

Password door lock using 8051.

The brain of this project is 8051 micro controller and relay is the heart of this project these are the two major component of this project. The main component in the circuit is 8051 controller. Password based door lock system using 8051 microcontroller is a simple project where a secure password will act as a door unlocking system. Password based door lock system using 8051 microcontroller is a simple project where a secure password will not enough to act as a door unlocking system since any body can use the password and open the door.

Password based door lock system using 8051 microcontroller circuit design uses five major components a microcontroller an l293d motor driver a dc motor a 4 4 matrix keypad and a 16 2 lcd. Password based door lock circuit design uses five major components a microcontroller a relay a dc motor a 4 3 matrix keypad and a lcd. The password which is entered is compared with the predefined password. This controller requires a supply voltage of 5v dc.

This digital door lock is simply a password based electronic code lock designed using 8051 micro controller a keypad and a 12 volt dc relay. Password based door lock system circuit principle. All the processing s will be done by 8051 microcontroller. In this project i am going to design a simple automatic door lock system using 8051 89c51 89c52 microcontroller 16 2 lcd 4 4 numeric keypad and a digital lock.

These techniques are an integration of mechanical and. Here at89c51 microcontroller is used and it is an 8 bit controller. How to design circuit of password based door lock system. In this project 4 3 keypad is used to enter the password.

In this article we have designed a simple digital door lock using 8051 which can be used as a security checking system to limit access to an area room only for certain individuals with the password. Here an at89c52 microcontroller is used and it is an 8 bit controller. Program of password based door locking system with 8051 circuit diagram of password based door locking system with 8051 protious simulation file. The motor is rotated forward or backward depending on the authenticity of the entered password.

Traditional lock systems using mechanical lock and key mechanism are being replaced by new advanced techniques of locking system. In our diy digital lock system 8051 89c51 89c52 is our intelligent unit.