DEVELOPMENT OF AIR QUALITY MONITORING SYSTEM WITH TOUCHSCREEN INTERFACE USING RASPBERRY PI 4B

Abstract

This study aims to enhance air quality monitoring through the integration of modern technologies using a Raspberry Pi 4B. The proposed system features a camera-based graphical user interface (GUI), an LCD touchscreen for real-time interaction, and an automatic transfer switch (ATS) backup mechanism to ensure continuous operation. Additionally, the system is powered by solar energy, promoting sustainability and enabling uninterrupted monitoring. The objective is to develop a robust and eco-friendly air quality monitoring system that offers accurate data collection, user-friendly visualization, and consistent functionality even during power outages. The system utilizes a Raspberry Pi 4B as the central processing unit, interfacing with various air quality sensors, a touchscreen display, and a camera module. The Raspberry Pi processes sensor data and facilitates interaction through a GUI displayed on the LCD touchscreen. The camera provides visual support for assessing air quality conditions. Users can view real-time readings, analyze historical data trends, and monitor live environmental visuals. An ATS backup mechanism ensures that the system remains operational during power interruptions, while the use of solar energy supports long-term deployment in remote or energy-constrained environments. The Raspberry Pi 4B proved to be a powerful and flexible platform for building an air quality monitoring system with a touchscreen interface. Its ability to manage multiple processes simultaneously makes it suitable for Internet of Things (IoT)-based applications. However, for low-power, real-time applications, a standard microcontroller may still be preferable depending on the project’s scale and requirements. Overall, the system met the intended objectives for responsiveness, user interaction, and uninterrupted monitoring. The study concludes that the Raspberry Pi 4B is an effective choice for developing an air quality monitoring system with a touchscreen interface. Its processing power, versatility, and ability to integrate with multiple sensors and user interfaces make it ideal for modern monitoring needs. The incorporation of solar power and ATS backup enhances system reliability, while the intuitive interface supports user engagement. This system offers a viable solution for improving environmental monitoring efforts in both urban and rural settings.