Automatically Controlled Energy Conservation System for Corporate Office Based on Microcontroller

Energy conservation is one of the major issues of recent days because all the natural resources will end up soon as the earth has a limited amount of such non-renewable resources. This paper ensures the conservation of energy by minimizing the wastage of electricity. Two microcontrollers are used for this setup. One of them is used to control the electrical appliances automatically depending on human presence in a particular room or area. When the passive infrared sensor (PIR) and proximity sensor find the motion and presence of human inside the area then it will turn on the electrical appliances and will count the number of persons. And the opposite action will be taken for the absence of human movement in a particular area using a relay circuit in the system. Although everything will be controlled using this system there is also a scope to control the appliances manually using separate switches. Once the switches are kept ON, the system will automatically shut down and turn ON when necessary. Another microcontroller is used to operate the safety features of the building and the entrance gate opening which will automatically open or close the door when someone enters or leaves the room and will show it on the LCD. With the help of the humidity sensor, it will show the temperature and humidity level in the LCD. A smoke detector sensor is used which will ring the fire alarm when smoke is detected and it will open the emergency exit door as well as the entrance door.