Open-source three-dimensional IoT anemometer for indoor air quality monitoring

Publication data
Type	Paper
Title	Open-source three-dimensional IoT anemometer for indoor air quality monitoring
Year	2025
Language	English (en)
License	CC-BY-SA-4.0
Cite as	Elizabeth Ospina-Rojas, Juan Botero-Valencia, Daniel Betancur-Vasquez, Joshua M. Pearce, Open-source three-dimensional IoT anemometer for indoor air quality monitoring, HardwareX, 2025, 23, e00656, ISSN 2468-0672, https://doi.org/10.1016/j.ohx.2025.e00656. Academia OA

Project data
Authors	Elizabeth Ospina-Rojas Juan Botero-Valencia Daniel Betancur-Vasquez Joshua M. Pearce
Location	The following coordinate was not recognized: Geocoding failed.London, Ontario, Canada Envigado, Colombia
Status	Designed Modelled Prototyped Verified
Years	2025
Made	Yes
Replicated	No
Uses	Arduino
OKH Manifest	Download

Ventilation in an enclosed space can significantly influence people’s comfort, health, and safety. Poor ventilation can generate temperatures dangerous to health or obstruct the dispersion of environmental pollutants, such as toxic gases or pollution. Measuring indoor environmental conditions can help improve the quality of the environment and protect people’s health and comfort. This work proposes the design of an open-source anemometer to measure wind speed and direction in three dimensions. The purpose of this anemometer is to monitor wind conditions in enclosed spaces and environmental conditions related to air quality and temperature. The prototype uses an array of six unidirectional flow sensors, each pointing towards a different axis. Carbon dioxide (CO), Volatile Organic Compounds (VOC), temperature, humidity, pressure, and gas presence sensors are integrated to monitor indoor environmental conditions accurately. Measuring the vertical component of the wind provides more detailed information on wind conditions. Test results show that the device can detect variations in wind speed with a deviation of 0.25 m/s, detect changes in horizontal wind direction with a deviation of 3.7°, and detect vertical wind direction variations with a deviation of 3.02°. These measurements demonstrate that the proposed device is capable of detecting wind changes in three dimensions, validating its potential for detailed indoor airflow monitoring.

Hardware name	Three-dimensional anemometer for indoor air quality monitoring
Subject areas	Engineering Instrumentation Anemometry Air quality monitoring Internet of things
Hardware types	Measuring physical properties and in-lab sensors Field measurements and sensors Electrical engineering and computer science
Open source license	Creative Commons Attribution-ShareAlike license
Cost of hardware	$522.26
Source file repository	https://doi.org/10.17605/OSF.IO/MZCTP

Keywords

Three-dimensional anemometer, Thermal anemometer, Wind speed, Wind direction, IoT, sensors, Indoor air quality, Open hardware, Air pollution, Arduino, Measuring station, Internet of Things, environmental variables, low cost, 3-D printing, open hardware, environmental monitoring, sensing, environmental sensing, additive manufacturing

Page data
Part of	FAST Completed
Keywords	Three-dimensional anemometer, Thermal anemometer, Wind speed, Wind direction, IoT, sensors, Indoor air quality, Open hardware, Air pollution, Arduino, Measuring station, Internet of Things, environmental variables, low cost, 3-D printing, open hardware, environmental monitoring, sensing, environmental sensing, additive manufacturing
SDG	SDG09 Industry innovation and infrastructure
License	CC-BY-SA-4.0
Organizations	Free Appropriate Sustainable Technology, Western, Instituto Tecnológico Metropolitano
Language	English (en)
Related	0 subpages, 0 pages link here
Views	26 page views (analytics)
Created	June 1, 2025 by Joshua M. Pearce
Last edit	May 7, 2026 by Joshua M. Pearce
Cite as	J.M.Pearce (2025–2026). "Open-source three-dimensional IoT anemometer for indoor air quality monitoring". Appropedia. Retrieved October 3, 2026.
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Keywords

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