In summary, capacitive sensing is a technology that enables detection of touch by measuring changes in capacitance. These sensors are used in many areas of the consumer, industrial and automotive markets and touch sensing is one of the most popular applications today. Small, low-power, and easy to implement, the MPR03x family of proximity sensors enhances an end design by adding capacitive touch sensing instead of mechanical buttons that can wear out and add cost; they conserve power for portable applications; and are small enough to be integrated into very compact designs.