Low-cost system for physiological signal acquisition
DOI:
https://doi.org/10.17979/ja-cea.2026.47.13825Keywords:
physiological signals, embedded systems, remote monitoring, electrocardiogram, biomedical internet of things, low-cost systemAbstract
This paper presents a low-cost platform for physiological signal acquisition, processing and remote visualization. The system integrates electrocardiography, galvanic skin response, heart rate and oxygen saturation by means of an ESP32-based architecture and a dedicated PCB aimed at reducing wiring, improving robustness and facilitating experimental use. The proposed solution combines basic local signal conditioning and processing, secure transmission to a remote infrastructure, and a web dashboard for near real-time supervision and querying. The paper describes the complete architecture, hardware design, sensor integration and preliminary functional results obtained during the Master's thesis development. The main objective is to provide a reproducible and extensible platform for teaching, biomedical prototyping and applied research, while establishing a basis for future quantitative validation and automatic signal analysis.
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Copyright (c) 2026 Felipe Cuevas, Eloy Irigoyen Gordo, Eukene Imatz Ojanguren
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
