This application also notifies the users of the status of the air quality in their area via a pop-up message. The Blynk application allows the users to obtain cloud-based air quality data.
The microcontroller transmits the data to the cloud through the Wi-Fi module. The air pollution level, temperature, and humidity measurements are collected by the gas sensors and then the data is transmitted to the microcontroller. This system was prepared by using gas sensors (DHT 22 and MQ 135), a microcontroller (Arduino Uno), a Wi-Fi module, a cloud database (Blynk), and a smartphone. In this paper, an IoT-enabled air pollution monitoring system was proposed. One of the approaches is the application of an Internet of Things (IoT), a system of “smart devices” that can monitor and connect with their surroundings and interact with users and other systems.
Many approaches have been conducted by researchers to measure air quality in their regions. Air pollution is a serious problem across the world owing to its substantial influence on the global environment and human health.
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