The Internet of things (IoT) is becoming an increasingly popular subject all around the world. Most of the people will use IoT devices that big companies produce in near future. But Makers like me always try to build their own solutions. I am working quite long time on internet of things. I love the IoT concept and there are lots of DIY projects, opensource examples and communities working together to bring up some solutions to our everyday problems. There are many industrial application that use IoT technology and there will be a lot more in coming years. The analyst firm Gartner says that there will be over 26 billion connected IoT devices by 2020.