GSM Based Home Security System
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Home security has been a major issue where crime is increasing and everybody wants to take proper measures to prevent intrusion. In addition there was a need to automate home so that user can take advantage of the technological advancement in such a way that a person getting off the office does not get melted with the hot climate. GSM Based Home Security System is aimed at developing the security of Home against Intruders, Gas Leak and Fire. About GSM Based Home Security System We interfaced 8051 microcontroller with GSM modem to decode the received message and do the required action. The protocol used for the communication between the two is AT command. The microcontroller pulls the SMS received by phone, decodes it, recognizes the Mobile no. and then switches on the relays attached to its port to control the appliances. After successful operation, controller sends back the acknowledgement to the users mobile through SMS.