Contactless lighting control system for classroom using internet of things / Nurharnanie Johari

Internet of Things will demonstrate how quickly technology develops. The use of the internet is now widespread in the world. However, as technology progressed, the need for a system to manage the lighting in the classroom based on the Internet of Things grew. Most classrooms in the school, college, and university use the switch button to control the lights. Students have a habit which is leaving the classroom without switching OFF the lights. Due to that action, an institution may need to pay a huge amount of bills from their budget for unnecessary energy consumption. The current situation also shows COVID-19 has caused a sudden pandemic in our country. Many sectors including educational institutions have been ordered to close temporarily to control the spread of COVID-19. This COVID-19 virus can be affected through the touching surface like a switch button. Thus, this Contactless Lighting Control System can solve the problems. The system developed will control and monitor lighting systems with a sensor that can transmit and receive the signal wirelessly. This system will use a nodeMCU with LDR (Light Dependent Resistor) and a PIR (Passive-Infrared sensor) to create the controller device. The controller device can be monitor and control the data by using Blynk and web applications as it is much cheaper and easier to manage and control compared to other hardware light sensors. Users will use the Blynk apps to control the light in the classroom, while the admin will monitor the light through the web application.