Password Based Door Locking (AT89C2051)

[Binu]

Security is a prime concern in our day-today life. Everyone wants to be as much secure as possible. An access control for doors forms a vital link in a security chain. The microcontroller based Door locker is an access control system that allows only authorized persons to access a restricted area. The system is fully controlled by the 8 bit microcontroller AT89C2051 which has a 2Kbytes of ROM for the program memory. The password is stored in the EPROM so that we can change it at any time.
The system has a Keypad by which the password can be entered through it. When the entered password equals with the password stored in the memory then the relay gets on and so that the door is opened. If we entered a wrong password for more than three times then the Alarm is switched on.
When we go inside and come back then the microcontroller will sense the person using the Laser light, the microcontroller will automatically open the door for you.

Program: pass.zip

[sp254093]

Hi Binu,
What are the content of INCLUDE REG_51.PDF file.
--SANTOSH

[Binu]

Please use RIDE Assembler, you can download it from
www.raisonance.com

Here's the header file

http://www.8051projects.info/files/inc.zip

J.Binu

[Binu]

To change the password dial 1234 ?Old password- New Password.

J.Binu
Click here to get free Blog & Website

[raj2007]

hello mr.binu i am constructing a project from your web site so called "Password Based Door Locking (AT89C2051)" i got a doubt that how can i implement the motor to the door ...
eagerly waiting for your reply

raj

[Binu]

What type of motor you want to use.
If you want to use stepper motor then the program should be slightly changed.

J.Binu
Click here to get free Blog & Website

[eceproj]

hello, is it possible to close the dorr using this project. if so how it can be done. if not how the door can be closed. is the motot is ac or dc motor. can you give the program in odinary text format.

[Binu]

You can open/close the door and making a motorised door, you can use any type of motor.
OPen the program with notepad.

J.Binu
Click here to buy fully finished Project Kits

[star]

quote:Originally posted by sp254093

Hi Binu,
What are the content of INCLUDE REG_51.PDF file.
--SANTOSH

sumair

[Binu]

The header file REG_51.pdf consists of the Addresses of all the registers in 8051 microcontroller.

J.Binu
Click here to buy fully finished Project Kits