The primary intent was to design a better experience around the way people interact with the thermostats. Another aspect was to avoid significant changes to the PCB, i.e. use existing PCB hardware with minimum changes. The scope of the project was divided into two major parts - product design and Interaction design. Both solutions are functionally dependent on each other.
Product Design, Interaction Design
Use the Stat app to get total control of your thermostat from a mobile device. Coming home in early? Just set the temperature for a perfect welcome.