17-05-2012, 01:45 PM
DIGITAL CODE LOCK FOR MULTIPLE LOCKERS
[attachment=22250]
INTRODUCTION
An electronic lock is a device which has an electronic control assembly attached to it. They are provided with an access control system.
This system allows the user to unlock the device with a password. The password is entered by making use of a keypad.
The user can also set his password to ensure better protection.
The major components include a keypad, LCD and the controller AT89C51 which belongs to the 8051 series of microcontrollers.
This article describes the making of an electronic code lock using the 8051 microcontroller.
Merits and Demerits
Merits :
It reduces the complexity in managing many controllers for many locks.
Ease of maintenance .
Demerits:
It is difficult to recover if the central controller fails
[attachment=22250]
INTRODUCTION
An electronic lock is a device which has an electronic control assembly attached to it. They are provided with an access control system.
This system allows the user to unlock the device with a password. The password is entered by making use of a keypad.
The user can also set his password to ensure better protection.
The major components include a keypad, LCD and the controller AT89C51 which belongs to the 8051 series of microcontrollers.
This article describes the making of an electronic code lock using the 8051 microcontroller.
Merits and Demerits
Merits :
It reduces the complexity in managing many controllers for many locks.
Ease of maintenance .
Demerits:
It is difficult to recover if the central controller fails