Aquality32: A low-cost, open-source air quality monitoring device leveraging the ESP32 and google platform

IF 2 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

HardwareX Pub Date : 2024-11-12 DOI:10.1016/j.ohx.2024.e00607

Daniel M. Pineda-Tobón, Albeiro Espinosa-Bedoya, Jhon W. Branch-Bedoya

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引用次数: 0

Abstract

We present AQuality32, an open-source air quality monitoring device designed to address the challenges faced by small research teams in accessing affordable and versatile air quality monitoring solutions. The device utilizes an ESP32 System on Module (SoM) and integrates sensors for CO₂ (SDC30 from Sensirion) and particulate matter (HM3301 from Seeed) measurement, along with temperature, relative humidity, and extensive sensing possibilities. It can be powered by a battery and is suitable for both stationary and on-the-go measurements. The paper details the hardware description, building instructions, programming, calibration procedures, and data collection setup for AQuality32. Validation experiments assess communication stability, geolocation accuracy, and environmental monitoring capabilities. The results demonstrate the device’s reliability, affordability, and suitability for various applications in environmental sciences, public health, and indoor/outdoor air quality monitoring. The paper emphasizes the importance of robust solutions, openness, and easy documentation for widespread adoption and impact in air quality research and monitoring.

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Aquality32：利用 ESP32 和谷歌平台的低成本、开源空气质量监测设备

我们推出的 AQuality32 是一款开源空气质量监测设备，旨在解决小型研究团队在获取经济实惠的多功能空气质量监测解决方案时所面临的挑战。该设备采用 ESP32 模块化系统（SoM），集成了二氧化碳（Sensirion 公司的 SDC30）和颗粒物（Seeed 公司的 HM3301）测量传感器，以及温度、相对湿度和多种传感功能。它可由电池供电，既适用于固定测量，也适用于移动测量。论文详细介绍了 AQuality32 的硬件描述、构建说明、编程、校准程序和数据收集设置。验证实验评估了通信稳定性、地理定位精度和环境监测能力。结果证明了该设备的可靠性、经济性以及在环境科学、公共卫生和室内/室外空气质量监测领域的各种应用的适用性。论文强调了强大的解决方案、开放性和简易文档对于空气质量研究和监测的广泛采用和影响的重要性。

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来源期刊

HardwareX Engineering-Industrial and Manufacturing Engineering

CiteScore

4.10

自引率

18.20%

发文量

124

审稿时长

24 weeks

期刊介绍： HardwareX is an open access journal established to promote free and open source designing, building and customizing of scientific infrastructure (hardware). HardwareX aims to recognize researchers for the time and effort in developing scientific infrastructure while providing end-users with sufficient information to replicate and validate the advances presented. HardwareX is open to input from all scientific, technological and medical disciplines. Scientific infrastructure will be interpreted in the broadest sense. Including hardware modifications to existing infrastructure, sensors and tools that perform measurements and other functions outside of the traditional lab setting (such as wearables, air/water quality sensors, and low cost alternatives to existing tools), and the creation of wholly new tools for either standard or novel laboratory tasks. Authors are encouraged to submit hardware developments that address all aspects of science, not only the final measurement, for example, enhancements in sample preparation and handling, user safety, and quality control. The use of distributed digital manufacturing strategies (e.g. 3-D printing) is encouraged. All designs must be submitted under an open hardware license.