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espanolEl desarrollo comercial de hardware de bajo coste que permite desarrollar prototipos y realizar investigaciones en diversos temas ha experimentado un auge muy importante en los ultimos anos. Ejemplo de ello es el estudio de senales electromiograficas (EMG) utilizando microcontroladores y tarjetas de adquisicion de senales con una calidad aceptable y precios asequibles. En este trabajo se plantea la posibilidad de adquirir y procesar senales electromiograficas superfiiales utilizando hardware de bajo coste como Arduino y la plataforma e-Health. Para ello, se ha implementado una sistema de control mioelectrico ON/OFF a partir de movimientos binarios sencillos de la mano tales como: apertura y cierre o flexion y extension. El sistema se ha evaluado en el control de un cursor en una y dos dimensiones y se ha medido el desempeno mediante la ley de Fitts. Los resultados obtenidos muestran que es posible controlar hasta dos grados de libertad con el sistema de manera robusta a pesar de las limitaciones tecnicas de los dispositivos utilizados respecto a sistemas de adquisicion comerciales de alto coste. EnglishThe development of low-cost commercial hardware that allows developing prototypes and undertake research in several topics has greatly increase in the last few years. An example of this is the study of electromyographic signals using low-cost microcontrollers and acquisition cards. In this work we present the possibility of acquiring and processing surface electromyography using a low-cost hardware such as Arduino and the e-Health platform. To that end, an ON/OFF myoelectric control system has been implemented to classify hand movement pairs such as opening/closing and flexion/extension. The system has been evaluated in the unidimensional and bidimensional control of a cursor and the accuracy has been measured using the Fitt's Law. The results obtained show that it is possible to control up to two degrees of freedom in a reliable way although the technical limitations of the low-cost hardware compared to high-level commercial acquisition systems.

Implementación y evaluación de un esquema de control mioeléctrico ON/OFF utilizando hardware de bajo coste