Abstract: Recently, interlayer noise has emerged as a social problem but there is not a method of accurately measuring interlayer noise. As Internet of Things (IoT) is applied homes, smart home systems that may make life in home more convenient have emerged and commercialized. Smart home systems may help the users who have difficulties for being unable to accurately measure interlayer noise. In the present study, a system that may measure interlayer noise was designed by using IoT which is the essence of smart home systems. The present study has realized a smart home system that measures interlayer noise at homes through a smart phone and enables users to control the system through using wireless communication.