Capacitive position sensing device

A capacitive sensing device, comprising:

• a plurality of six pads disposed around a center of a base disposed in a first plane;
• a ground plane, positioned in a second plane above the base;
• a rotor, disposed in a third plane between the first plane and the second plane and configured to rotate about the center;
• a sensing circuit, electrically connected to each pad of the plurality of pads and the ground plane, and configured to determine a rotational position of the rotor relative to the base based on a change in capacitance when the rotor is positioned between a given pad of the plurality of pads and the ground plane versus when the rotor is not positioned between the given pad and the ground plane;
• and
• wherein the plurality of six pads are disposed concentrically to one another, each defining a 360 degree arc around the center.

A capacitive sensing device, comprising:

• a plurality of pads disposed on a base around a center of the base;
• a ground plane positioned above the plurality of pads;
• a rotor, positioned between the ground plane and the plurality of pads, configured to at least partially rotate about the center resulting in a portion of the rotor being positioned over different portions of the plurality of pads at different angles of rotation;
• and
• sensing circuitry connected to the plurality of pads in order to determine a position of the rotor;
• and
• wherein at least two pads of the plurality of pads are disposed in a shared arc defined from the center.