Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface

The implementation of portability features in electronic prototypes requires the integration of multiple components for connectivity, data storage, power management, and user interfaces. Although these capabilities are available across various specialized development boards, there is currently no so...

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Autores principales:	Casal, Leonardo, Calderón Acosta, Francisco
Formato:	Artículo publishedVersion
Lenguaje:	Español
Publicado:	FIUBA 2025
Materias:	development board portability battery percentage embedded systems placa de desarrollo portabilidad porcentaje de batería sistemas embebidos
Acceso en línea:	https://elektron.fi.uba.ar/elektron/article/view/215 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=215_oai
Aporte de:	Repositorio Digital de la Universidad de Buenos Aires (UBA) de Universidad de Buenos Aires

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spelling	I28-R145-215_oai2026-02-11 Casal, Leonardo Calderón Acosta, Francisco 2025-12-15 The implementation of portability features in electronic prototypes requires the integration of multiple components for connectivity, data storage, power management, and user interfaces. Although these capabilities are available across various specialized development boards, there is currently no solution that integrates all of them into a single system. This work presents the design and experimental validation for the future implementation of an expansion board that includes Bluetooth, WiFi, and USB communication; local storage on a microSD card; an embedded user interface (display and buttons) and a cross-platform external application (PC/Android); battery charging with real-time state-of-charge (RSoC) measurement; and an algorithm for estimating remaining operating time. The system was validated under different operating conditions, demonstrating an RSoC measurement accuracy above 98% and enabling wireless communication for real-time data visualization. This board will facilitate the rapid development of portable prototypes in medical, IoT, and embedded system applications. La implementación de funcionalidades de portabilidad en prototipos electrónicos requiere la integración de múltiples componentes para conectividad, almacenamiento de datos, gestión de energía e interfaces de usuario. Si bien estas capacidades se encuentran disponibles en diversas placas de desarrollo especializadas, actualmente no existe una solución que las integre todas en un único sistema. Este trabajo presenta el diseño y validación experimental para la futura implementación de una placa de expansión que incluya comunicación Bluetooth, WiFi y USB, almacenamiento local en tarjeta microSD, interfaz de usuario embebida (display y botones) y aplicación externa multiplataforma (PC/android), carga de batería con medición del porcentaje de carga (RSoC) y algoritmo de estimación del tiempo de operación restante. El sistema fue validado bajo diferentes condiciones operativas, demostrando una precisión en la medición del RSoC superior al 98% y permitiendo una comunicación inalámbrica para graficar en tiempo real. Esta placa facilitará el desarrollo rápido de prototipos portátiles en aplicaciones médicas, IoT y sistemas embebidos. application/pdf text/html https://elektron.fi.uba.ar/elektron/article/view/215 10.37537/rev.elektron.9.2.215.2025 spa FIUBA https://elektron.fi.uba.ar/elektron/article/view/215/400 https://elektron.fi.uba.ar/elektron/article/view/215/401 Derechos de autor 2025 Leonardo Casal, Francisco Calderón Acosta Elektron Journal; Vol. 9 No. 2 (2025); 100-106 Revista Elektron; Vol. 9 Núm. 2 (2025); 100-106 Revista Elektron; v. 9 n. 2 (2025); 100-106 2525-0159 2525-0159 development board portability battery percentage embedded systems placa de desarrollo portabilidad porcentaje de batería sistemas embebidos Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface Placa de expansión para portabilidad: batería, Bluetooth/WiFi/USB, SD e interfaz gráfica info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=215_oai
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-145
collection	Repositorio Digital de la Universidad de Buenos Aires (UBA)
language	Español
orig_language_str_mv	spa
topic	development board portability battery percentage embedded systems placa de desarrollo portabilidad porcentaje de batería sistemas embebidos
spellingShingle	development board portability battery percentage embedded systems placa de desarrollo portabilidad porcentaje de batería sistemas embebidos Casal, Leonardo Calderón Acosta, Francisco Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
topic_facet	development board portability battery percentage embedded systems placa de desarrollo portabilidad porcentaje de batería sistemas embebidos
description	The implementation of portability features in electronic prototypes requires the integration of multiple components for connectivity, data storage, power management, and user interfaces. Although these capabilities are available across various specialized development boards, there is currently no solution that integrates all of them into a single system. This work presents the design and experimental validation for the future implementation of an expansion board that includes Bluetooth, WiFi, and USB communication; local storage on a microSD card; an embedded user interface (display and buttons) and a cross-platform external application (PC/Android); battery charging with real-time state-of-charge (RSoC) measurement; and an algorithm for estimating remaining operating time. The system was validated under different operating conditions, demonstrating an RSoC measurement accuracy above 98% and enabling wireless communication for real-time data visualization. This board will facilitate the rapid development of portable prototypes in medical, IoT, and embedded system applications.
format	Artículo publishedVersion
author	Casal, Leonardo Calderón Acosta, Francisco
author_facet	Casal, Leonardo Calderón Acosta, Francisco
author_sort	Casal, Leonardo
title	Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
title_short	Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
title_full	Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
title_fullStr	Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
title_full_unstemmed	Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface
title_sort	expansion board for portability: battery, bluetooth/wifi/usb, sd and graphical interface
publisher	FIUBA
publishDate	2025
url	https://elektron.fi.uba.ar/elektron/article/view/215 https://repositoriouba.sisbi.uba.ar/gsdl/cgi-bin/library.cgi?a=d&c=elektron&d=215_oai
work_keys_str_mv	AT casalleonardo expansionboardforportabilitybatterybluetoothwifiusbsdandgraphicalinterface AT calderonacostafrancisco expansionboardforportabilitybatterybluetoothwifiusbsdandgraphicalinterface AT casalleonardo placadeexpansionparaportabilidadbateriabluetoothwifiusbsdeinterfazgrafica AT calderonacostafrancisco placadeexpansionparaportabilidadbateriabluetoothwifiusbsdeinterfazgrafica
_version_	1857042992155590656

Expansion Board for Portability: Battery, Bluetooth/WiFi/USB, SD and Graphical Interface

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