week 6 :
Our Objective :  Save energy by setting the temperature heat or cool. Temperature controller designed to provide on/off control of heating and cooling. A thermostat is a device  for regulating the temperature of a system so that the system's temperature is maintained near a desired set point temperature. A thermostat may be a control unit for a heating or cooling system or a component part of a heater or air conditioner. The output of the sensor then controls the heating or cooling apparatus.