Abstract: A method and device for use by disabled persons in communicating includes sensors (1) for producing first, second, and third time indeterminate electrical signals responsive to different voluntary muscle movements of the disabled person. Three different muscles, each with a single state or one muscle with three different states may be used. The signals form a code indicative of communicating indicia. A microcomputer (3), connected to a visual display, translates the sensor signals into an output signal that produces visually perceptible communicating indicia on the display (5).