Research Article Published: December 15, 2025 Volume 1, Issue 9

Design and Experimental Validation of an ESP32-Based Multichannel Instrument for Neonatal Physiological Monitoring

Authors

Marie-Ange Essinga1

Affiliation: Research Laboratory of Computer Science Engineering and Automation, ENSET, University of Douala, Cameroon.

Jean Mbihi2

Affiliation: Research Laboratory of Computer Science Engineering and Automation, ENSET, University of Douala, Cameroon.

Abstract

This paper presents the design and implementation of a multichannel biomedical instrument capable of the simultaneous digital acquisition and local monitoring of three critical parameters for infant care: Electrocardiogram (ECG), ambient temperature, and humidity. The hardware architecture integrates an AD8232 single-lead heart rate monitor, a DHT11 sensor for environmental data, and an ESP32-WROOM system-on-chip (SoC) which serves as the central processing unit.
Virtual prototyping was established using Fritzing software, while the firmware was developed in C++ within the Arduino IDE framework to handle automated data acquisition and signal processing. The system implements a specific algorithm to detect R-peaks within the QRS complex to calculate heart rate in real-time. Experimental validation conducted on a workbench with a 5-month-old subject demonstrates the instrument's ability to provide stable, real-time data visualization via a virtual USB monitor. The proposed design offers a significant advantage over existing single-channel devices regarding size, cost-efficiency, and the architectural readiness for future IoT-based wireless monitoring.

Keywords

Multichannel Biomedical Instrumentation ESP32 SoC Pediatric Monitoring ECG Signal Processing Digital Data Acquisition IoT Healthcare

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How to Cite

APA Style:

Essinga, M. A., & Mbihi, J. (2025). Design and Experimental Validation of an ESP32-Based Multichannel Instrument for Neonatal Physiological Monitoring. International Journal of Advanced Research in Engineering and Related Sciences, 1(9), 18-26. https://doi.org/10.5281/zenodo.17597199

IEEE Style:

M. A. Essinga and J. Mbihi, "Design and Experimental Validation of an ESP32-Based Multichannel Instrument for Neonatal Physiological Monitoring," International Journal of Advanced Research in Engineering and Related Sciences, vol. 1, no. 9, pp. 18-26, 2025. https://doi.org/10.5281/zenodo.17597199

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DOI

DOI: https://doi.org/10.5281/zenodo.17597199