Abstract: The growth potential for the embedded industry is enormous. And the path forward is becoming clearer every day. It’s time that we start building IOT systems, and provide value to our customers.[1]. The IoT is expected to connect 28 billion “things” to the internet by 2020, ranging from wearable devices such as smart watches to automobiles, appliances, and industrial equipment [3]. In this paper , we will take a look at different IOT solutions developed so far, their functionalities and technology used and thus conclude the various challenges to be focused on to give way to better solutions that will help the community.

Keywords: Internet of things ,RFID , IPv6,Wireless Sensor Network ,Smart home.