One Per Cent: Touch�brings touch control to everyday things: It works thanks to capacitive sensing, in which an electrical signal passing through the object changes when touched by a conductive material, such as a human finger. Capacitive sensing is already found in smartphone touchscreens, but these devices use electrical signals at only a single frequency, whereas Touché works with a range of frequencies.
Using multiple frequencies allows the system to distinguish between a single finger, multiple fingers, a full-hand grasp and many other touch gestures. All you need is a single sensing electrode attached to the object at one end and a computer at the other, which analyses the changing signals to identify the particularly gesture in use.
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