Automated Electric Power Saving System in University Classrooms Using Internet of Things

Electricity has the major resource consumption among many resources in the country. Also, it is the most misused resource, so control of consumption needs to be taken so that cost is maintained and future generation is benefited. The system proposed here represents a low cost and efficient classroom system which controls appliances like lights and fans using NodeMcu module and relays and adapters with the available LAN or Wi-Fi in the University, so that devices can be remotely controlled using the web. This also uses low-cost sensor which detects the presence of humans switching on the lights when necessary and off if humans are not detected. The simple and effective sensor called Passive Infrared Sensor (PIR sensor) will be used in each classroom. Human existence is sensed by the sensor through heat radiations which are produced by humans. Then the input is given as the signal through simple web application is created. The procedure to operate the devices which manually followed to operate the devices is however neglected, therefore, installing this type of equipment, and a web application will surely reduce the wastage of electricity in classrooms by remote-operating devices.