Department of Information Technology, Bharathiar University, Coimbatore, Tamil Nadu, India- 641046.
Review Article
World Journal of Advanced Research and Reviews, 2024, 21(03), 495-502
Received on 19 January 2024; revised on 02 March 2024; accepted on 05 March 2024
This project introduces an innovative Air Quality Monitoring System based on IoT technology, leveraging components such as NodeMCU, DHT11, MQ135, a buzzer, an LCD, and the Blynk 2.0 app. The primary objective is to provide real-time monitoring of environmental conditions, encompassing temperature, humidity, and air quality, while also offering audible alerts for immediate user notification. The NodeMCU functions as the central microcontroller, interfacing with the DHT11 sensor for temperature and humidity readings and the MQ135 sensor for air quality measurements. The collected data is visually displayed on a 16x2 LCD screen. Additionally, the system enables remote monitoring and control through the Blynk 2.0 app. The app displays comprehensive information using gauge widgets for temperature, humidity, and air quality, along with detailed statistics through a display widget. To enhance user awareness, an integrated buzzer delivers audible alerts when air quality exceeds predefined thresholds. The Arduino sketch incorporates essential libraries for sensor interfacing, data processing, and seamless integration with the Blynk app. The app is configured with widgets corresponding to virtual pins in the sketch, ensuring smooth communication between the hardware and the app. This IoT-based Air Quality Monitoring System serves as a valuable tool for individuals and communities concerned about indoor or outdoor air quality. The system's features, including real-time data visualization, remote monitoring capabilities, and an alert system, contribute to creating a more informed and healthier living environment.
IoT technology; Air Quality Monitoring System; NodeMCU; DHT11 Sensor; MQ135 Sensor; Blynk 2.0 app; Real-time monitoring; Environmental conditions; Temperature; Humidity; LCD; Sensor interfacing; Data processing; Visualization; Healthy living environment
Preview Article PDF
Lakshmi prabha S and R. Vadivel. Sensorsync auto: Integrating IoT sensors for smart vehicle air quality monitoring. World Journal of Advanced Research and Reviews, 2024, 21(3), 495-502. Article DOI: https://doi.org/10.30574/wjarr.2024.21.3.0678