1. A system for identifying a plurality of objects using capacitive sensing, the system comprising: a sensing array, wherein: the sensing array includes a plurality of capacitive sensor pads; and each of the plurality of objects includes at least one conductive surface, the at least one conductive surface being configured to form at least one capacitance with at least one of the plurality of capacitive sensor pads; and a microcontroller, wherein the microcontroller is configured to (i) detect the at least one capacitance between each of the plurality of objects and the plurality of capacitive sensor pads and (ii) identify each of the plurality of objects based on the detected at least one capacitance, wherein each of the plurality of objects are identified with a ternary code, wherein (i) a first ternary code level is associated with a conductive surface including a surface area larger than a surface area of the at least one of the plurality of capacitive sensor pads and (ii) a second ternary code level is associated with a conductive surface including a surface area smaller than the surface area of the at least one of the plurality of capacitive sensor pads.