Real-time embedded processing and instrumentation for wearable BCI application

V CATACORA; F GUERRERO; E SPINELLI

Revista Argentina de Bioingeniería

Sociedad Argentina de Bioingeniería

Lugar: Tucumán; Año: 2018 vol. 22 p. 49 - 55

2591-376X

Abstract. This article presents a totally autonomous, embedded, wireless and portable brain-computer interface based on occipital alpha rhythms that operates in real-time and non-invasively. In order to achieve the simplicity and versatility of a wearable device, and independence from a computer, the acquisition and power stages were designed and implemented on a portable platform with embedded processing. The output signal of the system is an on-off logic state that is activated when the cerebral rhythm surpasses a threshold. An application was developed in order to validate the platform, configuring the device tooperate as a switch triggered by the alpha rhythm. The output commands the left click button of a commercial wireless mouse connected to a computer as a conventional peripheral.