ABSTRACT
The main objective of this
project is to intimate the concerned authorities about an unauthorized access of
secured areas such as museums, residential houses, banks etc. As crime rate is
on the rise and burglars are getting smarter, the security system for banks,
shops and houses needs to be full proof. This proposed system ensures that at
any moment if any unauthorized person tries to open the bank locker; a
telephone number will be dialed through the telephone line connected to it.
This project uses a
microcontroller from 8051 family. An external memory EEPROM is interfaced to the
microcontroller to store the contact number to which the call is to be made. The
arrangement is made in such a way that when someone tries to open the door
forcefully even when it
is locked the microcontroller gets an interrupt through
a hidden switch mechanism interfaced to it. Microcontroller will automatically
dial to the number which is stored in the EEPROM through DTMF encoder interfaced
to it. Microcontroller fetches information from external memory like EEPROM
using I2C (Inter IC communication) protocol.
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