An IoT Smart Lighting System for University Classrooms

This research is the development of an IoT based controller device with a cloud-based system to switch, manage, and monitor the lights of university classrooms. The project output shall aid the problem in the operation of lights from unnecessary energy consumption to save energy. The researchers used a NodeMCU V3 with Wi-Fi capabilities together with a Passive-Infrared Sensor to detect room occupancy and a Relay Switch to operate the switching of lights to create the controller device. The controller device can run using the web and mobile applications over the internet using AJAX. The developed applications not only serve as a controller but a management system to set appropriate schedules for class hours, a monitoring system that indicates the length of usage and the total amount of energy consumed from lights. The management can set class schedules to allow the room to operate the lights on a given period if there are occupants in the room. Failure to occupy the room even with a set schedule, the lights will not turn ON, thus reducing excess energy consumption. Furthermore, lights can still be controlled over a separate remote network through the applications even beyond the given schedule.