Gsm based home automation, safety and security system using android mobile phone

In this paper, we will deliberate how to control home appliances, safety and security system using GSM technology by using android application through android mobile phone. We will also show that we can control the appliances even in the absence of an android phone by sending a normal SMS. The advantage of using GSM technology is that we can control the home appliances from remote places anywhere in the world. This system allows the owner to control the appliances and to receive a feedback status of the home appliances by sending instructions in form of SMS as well as through an android application. For the home security system we are using an antitheft reporting system which will report the owner by ringing an alarm and by sending an SMS. Also for the safety system in case of fire or gas leakage it will report the owner by sending a SMS and also by ringing an alarm. Thus by using GSM technology, it provides the wireless access to the devices to be controlled. Index Terms Microcontroller, GSM modem, sensors, appliance control, android app.