Being efficient in using energy is one of the keys to sustainable living. The Ecohome is a device that helps households maintain energy efficiency within their homes. Ecohome automates systems such as heating and cooling units, lighting, and other systems that access data concerning temperature, humidity, and light. To get the maximum efficiency level, the Ecohome takes into account two data: the day to day living pattern of the household, and the condition of the surrounding environment. With the two data, Ecohome is able to calculate the optimal level of energy use to obtain the maximum efficiency.