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 has a Keypad through which the password can be entered. When the entered password equals the password stored in the memory, then the door gets opened.
This can also be used in any such security systems like :
� House entrance
� Security systems at workplace
� Industrial controls
� Other Access control systems