Development of Blynk IoT-Based Air Quality Monitoring System

Abstract

Due to the increased emissions of hazardous gases from vehicles and industries, the density of polluted air increases in the surroundings. It leads to human health problems such as asthma, lung disease, bronchitis and even premature death if the polluted air conditions are severe. In addition, polluted air can cause global warming and acid rain that causes unhealthy crop growth and the pollution of water supply sources. Therefore, a smart monitoring system is essential to check the air quality. This paper proposes a device of air quality monitoring system to efficiently monitor air conditions in real-time and sending alert notifications via mobile Blynk application, email, and SMS. The device comprises ESP8266 module Node MCU board as microcontrollers, LM35 temperature sensor and MQ-2 detection gasses sensors such as LPG, smoke, alcohol, propane, hydrogen, methane, and carbon monoxide. The proposed system is designed with a user-friendly GUI mobile application and web based. The monitoring results can be displayed in a mobile app with integrated real-time data transmitted by connecting to Wi-Fi network and GSM through ESP8266. In this paper, the Internet of Things (IoT) based in the air quality monitoring system plays an important part. Accordingly, the users can receive updates from the mobile apps at anytime and anywhere.