IoT Solar Powered Air Quality Monitoring Device Using Arduino

Lim, Yit Shin (2024) IoT Solar Powered Air Quality Monitoring Device Using Arduino. Final Year Project (Diploma), Tunku Abdul Rahman University of Management and Technology.

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Abstract

Air pollution is an unavoidable contamination of air caused by dusts, pollens from flowers, volcanoes and human activies such as the by-product of internal combustion engine (ICE) vehicles, agricultural activities, industrial activities, energy production systems etc. The concentration of air pollution can pose a significant risk to public health and to the environment, but there’s a lack of affordable and well-equipped air quality monitoring device with modern technologies on the market. This project aims to produce an affordable, environmental friendly yet well-equipped and portable IoT air quality monitoring device that is accessible by any income group. The air quality data acquired from the sensors are published to a cloud, which can then be accessed remotely through a website and mobile application. The air quality monitoring device would also warn users when the air quality is poor. The air quality monitoring device was made with sustainability in mind, the casing will be produced using recyclable material, and solar energy, one of the renewable sources will be utilised to improve the battery life of the device. The functions of the air quality monitoring device, such as the accuracy of the air quality data, cloud data visualisation, and mobile application access were evaluated. The total cost of the prototype was also computed, and the functions and features of similarly priced air quality monitoring device on the market were compared with the prototype. As the sensors of the device were all calibrated, the results showed great accuracy of the air quality. The live air quality data that were stored to the cloud can be visualised online, and the mobile app was able to show the live air qualtiy data. The prototype also has more capabilities than similar priced products in terms of functions and features, thus making it cost-effective whilst being environmental friendly. To conclude, the proposed prototype has successfully achieved its goals of being an affordable and portable IoT air quality monitoring device that is well-equipped with features and being sustainable at the same time. The limitations of the device include the inability to install an atomizer that could humidify the air due to the limited ports on the device. Future improvements include finding a way to add a humidifier and adding weather forecast to the device.