Abstract
Today, when technology is getting more and more progressive, there is growing demand for automation. In automation systems we can include home automation systems. Within home automation systems the most commonly embedded systems are: security system, temperature control system, lighting control system and etc. Control of these systems are most commonly realized using wireless communication. In this paper is described smart home system controlled by the ATmega2560 microcontroller. Smart home system beside microcontroller, also has a SIM900 GSM module that enables remote control of a smart home using SMS messages. The smart home security system consists of: security system based on IR sensors located on windows and security system based on password protection located at the front door. In the event of a security breach, an alarm with visual and audible warning signals is activated and an SMS message about the security breach is sent to the user. The lighting control system is controlled by SMS message. The user sends SMS messages that turn on/off lights in individual rooms of the smart home. The user also has the ability to turn on/off individual lighting groups in the smart home. The motion sensor is used to detect movement outside the smart home. When the motion sensor is activated, outdoor lighting turn on. The use of systems based on microcontrollers and GSM, according to research, represents a serious competition to earlier systems in terms of price, reliability and ease of use.
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