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The main objective of this project is to develop an embedded system, which is
used to verify and authenticate the authorized
This project is implemented 8051 based At89s52 developed board interfaced with
I-Button, Keypad, buzzer and LCD.
The i-Button is a computer chip enclosed in a 16mm thick stainless steel can.
Because of this unique and durable container, up-to-date information can travel with a
person or object anywhere they go. The steel i-Button can be mounted virtually anywhere
because it is rugged enough to withstand harsh environments, indoors or outdoors. It is
small and portable enough to attach to a key fob, ring, watch, or other personal items, and
be used daily for applications such as access control to buildings and computers, asset
management and various data logging tasks.
Whenever the authorized person enters into the home, he has to keep his Ibutton
to the reader which is attached to our microcontroller based embedded board. And
enters the password through the keypad interfaced. At that moment the reader will checks
weather the information of the person is correct or not and then it will decide whether to
give access to that particular person or not. If the information of the person is correct then
he will be permitted inside otherwise he will not permit inside and switched on the
buzzer. If the person given information is correct then allow to switch on the appliance
through keypad. And the information of the access system will be displayed on the LCD
which we embedded to our board.
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