B. Bluetooth Based Home Automation and Security Using ARM9 According to author, Bluetooth is very low cost, flexible and having suitable capability. In this system, Wince 6.0 Operating system is used for ARM9 devices [2]. GUI is developed using Visual Basics .net to automate home appliances. For ARM 7 and ARM 9, MDK (Microcontroller Development Kit)–ARM is used as software development environment. MDK-ARM specially designed for microcontroller applications. With micro controller devices and MDK-ARM, you can use sensors and actuators you require. This includes temperature and light sensors. GUI which is programmed in VB .net is used to send the commands to microcontroller with the help of Bluetooth. Based on received commands microcontroller will take action on appliances. Control is given for only authorized person and output of a security system is in form of LED [2]. C. IOT Based Smart Security and Home Automation System In this paper, author built an IOT based smart and wireless home automation and security system. Author used TICC3200 Launchpad board embedded with micro-controller and onboard Wi-Fi shield which will be used for home automation purpose. PIR motion sensor is also used to detect the intruder [3].