AN48430 - CapSense® Express™ – Noise Filtering Methods

CapSense® noise filtering helps in making capacitive sensing more robust. AN48430 describes the different filtering mechanisms implemented in CapSense Express devices.

Introduction

CapSense® Express™ supports a maximum of 10 GPIOs. These GPIOs are configurable as capacitive sensing inputs, output with LED driving capabilities, interrupt output, wakeup on interrupt input, and other digital IO functionalities. The CapSense Express device supports I2C™ serial communication interface in slave mode.