Password Based Door Lock System Using 8051 Microcontroller

The password which is entered is compared with the predefined password.

Password based door lock system using 8051 microcontroller.

If the entered password is correct then the system opens the door by rotating door motor and displays the status of door on lcd. The main component in the circuit is 8051 controller. The microcontroller based door locker is an access control system that allows only authorized person to access a restricted area the system is fully controlled by the 8 bit microcontroller 8051 which has a 2kbytes of rom for the program memory. 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 final report. These techniques are an integration of mechanical andelectronic devices and highly intelligent. Our digital code lock project is a simple electronic number lock system or an electronic combination lock using 8051 which has a preset 5 digit password stored inside the program the system collects 5 digit user input compares the user input with the preset password inside program and if the user input and stored password matches access will be granted by opening the door with the help of relay for a few seconds and closing it automatically after stipulated time. In our diy digital lock system 8051 89c51 89c52 is our intelligent unit.

In this project 4 3 keypad is used to enter the password. Videos you watch may be. If password does not match door remains closed and a message wrong password access denied is displayed on lcd. In this project a 4 4 matrix.

If playback doesn t begin shortly try restarting your device. We type the password using keypad which is attached with the system. Password based door lock system using8051 microcontrollertraditional lock systems using mechanical lock and key mechanism are being replaced by newadvanced techniques of locking system. Password based door lock system using 8051 microcontroller construction and output video.

Principle behind the circuit. The password is stored in the eprom so that we can change it at any time. All the processing s will be done by 8051 microcontroller. Predefined hard coded password is downloaded in the code.