A user's movements are detected by a capacitive system having one or more conductors. The output from the conductors is amplified and compared to a table of stored output. Thus, the device can eliminate the need to touch a control surface. The control surface such as a computer mouse could be eliminated in favor of merely sensing a user's hand movement. Likewise, the array of conductors could be placed in a panel that could be mounted on a wall. Such panels could be used in a factory to sense the movement of workers or a machinery. Indeed, the movements could be analyzed and warnings sounded if a collision is predicted.