Air Quality Monitoring System in Thingspeak-Based Applications Using Internet of Things (IOT)

Abstract

The monitoring system in this study is a system created to find out data about temperature, humidity, and air quality in a room. This research develops a monitoring system that uses the internet so that the monitoring range becomes wider. By utilizing the Internet of Things (IoT) technology using the thing speak application integrated with the Node MCU module ESP8266 features an LM35 temperature sensor that functions as a temperature detector, a DHT11 sensor as a humidity sensor, and an MQ-135 sensor as an air quality detector. These sensors send input signals to the Node MCU ESP8266 module for processing. The wifi module contained in the Node MCU ESP8266 module sends the value read by the sensor to the IoT Thing speak platform which records logging data in graphical form. This system has the potential to be used as an indoor air quality monitoring system to raise awareness about the importance of healthy air quality..