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High-resolution portable bluetooth module for ECG and EMG acquisition

2025Journal article Open access
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datacite.subject.fosEngenharia e Tecnologia::Engenharia Eletrotécnica, Eletrónica e Informática
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
dc.contributor.authorLuiz, Luiz E.
dc.contributor.authorSoares, Salviano
dc.contributor.authorValente, Antonio
dc.contributor.authorBarroso, João
dc.contributor.authorLeitão, Paulo
dc.contributor.authorTeixeira, João Paulo
dc.date.accessioned2025-07-09T13:18:37Z
dc.date.available2025-07-09T13:18:37Z
dc.date.issued2025
dc.description.abstractPortable ECG/sEMG acquisition systems for telemedicine often lack application flexibility (e.g., limited configurability, signal validation) and efficient wireless data handling. A modular biosignal acquisition system with up to 8 channels, 24-bit resolution and configurable sampling (1–4 kHz) is proposed, featuring per-channel gain/source adjustments, internal MUX-based reference drive, and visual electrode integrity monitoring; Bluetooth® transmits data via a bit-wise packet structure (83.92% smaller than JSON, 7.28 times faster decoding with linear complexity based on input size). Results: maximum 6.7 μVrms input-referred noise; harmonic signal correlations >99.99%, worst-case THD of -53.03 dBc, and pulse wave correlation >99.68% in frequency-domain with maximum NMSE% of 6e-6%; and 22.3-hour operation (3.3 Ah battery @ 150 mA). The system enables high-fidelity, power-efficient acquisition with validated signal integrity and adaptable multi-channel acquisition, addressing gaps in portable biosensing.eng
dc.description.sponsorshipThe authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for financial support through national funds FCT/MCTES (PIDDAC) to CeDRI, UIDB/05757/2020 (DOI: 10.54499/ UIDB/05757/2020) and UIDP/05757/2020 (DOI: 10.54499/UIDB/05757/2020), and SusTEC, LA/P/0007/2020 (DOI: 10.54499/LA/P/0007/2020). Additionally, this work is financed by the NextGeneration EU funding through Portugal’s Recovery and Resilience Plan – Mobilizing Agendas for Business Innovation, within the project Agenda Drivolution (Project 23, 02/C05-i01.02/2022.PC644913740-00000022).
dc.identifier.citationLuiz, Luiz E.; Soares, Salviano; Valente, Antonio; Barroso, João; Leitão, Paulo; Teixeira, João Paulo (2025). High-resolution portable bluetooth module for ECG and EMG acquisition. Computational and Structural Biotechnology Journal. ISSN 2001-0370. 28, p. 156-166
dc.identifier.doi10.1016/j.csbj.2025.04.020
dc.identifier.issn2001-0370
dc.identifier.urihttp://hdl.handle.net/10198/34654
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.relationResearch Centre in Digitalization and Intelligent Robotics
dc.relationResearch Centre in Digitalization and Intelligent Robotics
dc.relationAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
dc.relation.ispartofComputational and Structural Biotechnology Journal
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectElectrocardiogram
dc.subjectElectromyogram
dc.subjectPrinted circuit board
dc.subjectAcquisition integrity
dc.subjectTelemedicine
dc.subjectWearable
dc.subjectHuman-centred
dc.titleHigh-resolution portable bluetooth module for ECG and EMG acquisitioneng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleResearch Centre in Digitalization and Intelligent Robotics
oaire.awardTitleResearch Centre in Digitalization and Intelligent Robotics
oaire.awardTitleAssociate Laboratory for Sustainability and Tecnology in Mountain Regions
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F05757%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F05757%2F2020/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0007%2F2020/PT
oaire.citation.endPage166
oaire.citation.startPage156
oaire.citation.titleComputational and Structural Biotechnology Journal
oaire.citation.volume28
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNameLeitão
person.familyNameTeixeira
person.givenNamePaulo
person.givenNameJoão Paulo
person.identifierA-8390-2011
person.identifier663194
person.identifier.ciencia-id8316-8F13-DA71
person.identifier.ciencia-id4F15-B322-59B4
person.identifier.orcid0000-0002-2151-7944
person.identifier.orcid0000-0002-6679-5702
person.identifier.ridN-6576-2013
person.identifier.scopus-author-id35584388900
person.identifier.scopus-author-id57069567500
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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