an interface between a tool and the utilizer which is alike to a joystick. The switch is activated whenever the stick is pushed off-center toward any direction and can thus be turned on by gross body motions of users with physical handicaps.
an interface between a tool and the utilizer which is alike to a joystick. The switch is activated whenever the stick is pushed off-center toward any direction and can thus be turned on by gross body motions of users with physical handicaps.