Expociencia is a doors open day organized by the University of Valencia Technology Park with the collaboration of theSchool of Engineering of the University of Valencia. Since 2012, IDAL has participated in this festive day focused on bringing science and technology closer to the broad public, especially children. Last May 24th, we were setting up an activity called “My body is electric” in which attendants saw how some of their electric biosignals were acquired and processed.