Non contact access switch for computers

ADITI is a non-contact switch for a person with motor disability, helping them ‘’click’’ on a computer screen. ADITI can accommodate a range of movement abilities and can be set to work at a distance of 4 cm for small movements such as a finger stretch or 9 cm to accommodate large movements such as a head thrust or lifted arm. It also accommodates the easiest movement for the individual and can be set to respond if the person prefers to move toward or away from the switch click. Every move is registered with a beep, providing audio feedback to the user so that the difficult dual task of looking at the switch and then at the screen is removed.