thank's for your great Reply! eye tracking was the first of my ideas but i had not find anything interesting... CVC eye tracker can be a solution and i'm going to try it! The voice control can't be a solution beacuse he have often an oxygen mask and the voice volume too low... Also wifi can be a gre...

Hello everyone, sorry for my English, i'm Andrea from italy. I'm searching for a way to help communication with a friend that have lost control of muscle movement; he is only able to move his head. I know there is some communication interfaces in commerce but too expensive for us! I am thinking to u...