CapSense Touch Sensing

 

CapSense replaces mechanical buttons

  • A capacitive sensor is used to measure the change in capacitance between a pin and ground
  • CapSense algorithms and analog circuitry convert the measured capacitance to a raw count
  • A finger touch increases the capacitance of the system, which in turn increases the raw count
  • An increase in the raw count above a user-defined threshold registers a touch


Refer to the Getting Started With CapSense Guide for details on CapSense algorithms