Grant PID2021-126810OB-I00 funded by:

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CICERONE AirLink

CICERONE AirLink© is an indoor air quality telemonitoring device designed for the project CICERONE (PID2021-126810OB-I00).

The air quality device operates by transmitting data every ten minutes for all the parameters collected by the various sensors, thanks to the communication module created in conjunction with the RTC. This way, if there are no data transmission failures, a total of 144 daily data points are obtained for each of the parameters collected by the CO2 and PM/VOCs sensors.

Table of Contents

• CICERONE AirLink
  • Table of Contents
  • 🎓 Features
  • 📝 Specifications
  • 📚 Documentation
  • 📑 Citations
    • APA
    • BibTeX
  • 📃 Licences

🎓 Features

• Sensors for measuring particulate matter (PM1, PM2.5, PM4, and PM10), volatile organic compounds (VOCs), carbon dioxide (CO2), temperature, and relative humidity.
• Clock for synchronizing sensor data readings and configuring the data packets to be transmitted.
• Autonomous data transmission independent of the user via an NB-IoT communication module. The device includes its own SIM card for sending average sensor values every ten minutes.
• Energy autonomy of up to 5 hours of operation on a fully charged battery.
• Optional cough detection feature using a machine learning algorithm. The device can count the number of cough events within a desired time frame.

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📝 Specifications

• Electronics
  • Microcontroller
    • Arduino Nano 33 BLE Sense Rev2
  • Sensors
    • PM/VOC
    • CO2
    • Temperature
    • Ambient relative humidity
  • I/O
    • Power switch
  • Communication
    • NB-IoT module (SIM7020G)
  • Others
    • 2-layer custom PCB
    • RTC
    • 900 mAh Lithium-ion battery
    • 5V@1A AC-DC adapter
• Mechanics
  • 3D-printed case
  • Developed in SOLIDWORKS® 2020
• Firmware
  • Sends the data to a server containing 10 minutes average measurements of all sensors via the NB-IoT module.
  • Developed in Arduino IDE

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📚 Documentation

• Documentation
• Description
  • Electronics
  • Firmware
• User guide
  • Assembly
  • Firmware customization

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📑 Citations

Please consider citing our papers in your publications if the project helps your research.

APA

[1] Camacho-Magriñán, P.; Sales-Lerida, D.; León-Jiménez, A.; Sanchez-Morillo, D. Indoor
Environmental Monitoring and Chronic Respiratory Diseases: A Systematic Review. Technologies 2025,
13, 122. https://doi.org/10.3390/technologies13030122

[2] P. Camacho Magriñan, D. Sales Lerida, R. Moreno Mellado, A. Lara Doña, & D. Sánchez Morillo.
(2024). Sistema de telemonitorización de la calidad de aire interior para pacientes con EPOC. XLII
Congreso Anual de la Sociedad Española de Ingeniería Biomédica. CASEIB 2024, 89-92.

BibTeX

@Article{technologies13030122,
AUTHOR = {Camacho-Magriñán, Patricia and Sales-Lerida, Diego and León-Jiménez, Antonio and
Sanchez-Morillo, Daniel},
TITLE = {Indoor Environmental Monitoring and Chronic Respiratory Diseases: A Systematic Review},
JOURNAL = {Technologies},
VOLUME = {13},
YEAR = {2025},
NUMBER = {3},
ARTICLE-NUMBER = {122},
URL = {https://www.mdpi.com/2227-7080/13/3/122},
ISSN = {2227-7080},
DOI = {10.3390/technologies13030122}
}

@inproceedings{6842c68c8a34bb2df9fc79a9,
title={Sistema de telemonitorización de la calidad de aire interior para pacientes con EPOC},
ISBN={978-84-09-67332-2},
booktitle={XLII Congreso Anual de la Sociedad Española de Ingeniería Biomédica. CASEIB 2024},
publisher={Sociedad Española de Ingeniería Biomédica (SEIB)},
author={P. Camacho Magriñan and D. Sales Lerida and R. Moreno Mellado and A. Lara Doña and D.
Sánchez Morillo},
year={2024},
pages={89-92}
}

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📃 Licences

All hardware materials and designs, firmware and documentation provided here are licenced under the following licenses:

• Hardware: CERN Open Hardware Licence Version 2 - Strongly Reciprocal
• Firmware source code: GNU General Public License version 3 or later
• Documentation: GNU Free Documentation License, Version 1.3 or later

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