Abstract: The aging level of labor force in Korea is evaluated based on the percentage of workers above the age of 50 in the economically active population. While the percentage of elderly population was 25% in 2000 it is projected that it will reach 40% in 2020 and exceed 50% in 2050. The rapid increase of elderly population is leading to the decrease of productive population. It will also cause an aggravation of domestic productivity. Productivity decline due to the increase of elderly population can become visible within a few years. Information communication technology is finding ways to respond to this problem. Smart technology can enhance productivity through automation and intellectualization in a simple and repetitive labor field. Among smart technologies, the development of IoT technology has been carried out actively. Many examples that can increase productivity using IoT have been suggested widely. This study will describe the development of IoT using open source software and hardware that can minimize the development time of IoT technology. With examples of applying IoT technology to home automation for the development of a similar system in the future, this study seeks to suggest that productivity improvement using IoT communication to solve the problems of the decrease in productive population and productivity decline. In order to show that the issue of productivity decline due to aging can be solved using open source technology, this study suggested a direction by developing home automation using open source hardware and software.