IoT-Based Monitoring System for Indoor Air Quality using Thingsboard

Indoor air pollution is a big problem because most people spend more time indoors than outdoors. Breathing in indoor pollutants for a long time can make people sick. Things like temperature, humidity and air ventilation affect people’s comfortability and health while indoors space. Indoor Environmental Quality (IEQ) is how clean the air is inside a building. It’s important for homes and workplaces to have good IEQ. During the COVID-19 pandemic, people must stay at home more which can make indoor air quality worse. Bad air in indoor space can make people sick. This project’s main goal is to make a cheap system using the Internet of Things (IoT) to monitor indoor air quality. The system monitors parameters like air temperature, humidity, Carbon Dioxide (CO
2
) levels, Total Volatile Organic Compounds (TVOC) and dust density in real-time. The ESP32 microcontroller reads the sensor data and sends it to a server called Thingsboard. The server processes the data and displays it on dashboard in Thingsboard. Users can check the indoor air quality anytime and anywhere. If the sensor readings go above a threshold, an alarm is sent to users through Telegram. The system is tested in two places to make sure it works well and the results are explained.