Datasheet

11. Capacitive Touch Sensing

11.1 QTouch Library

The QTouch

Library provides a simple to use solution to realize touch sensitive interfaces on most AVR

microcontrollers. The QTouch Library includes support for the Touch and QMatrix

acquisition methods.

Touch sensing can be added to any application by linking the appropriate QTouch Library for the AVR

Microcontroller. This is done by using a simple set of APIs to define the touch channels and sensors, and

then calling the touch sensing API’s to retrieve the channel information and determine the touch sensor

states.

The QTouch Library is FREE and down-loadable from QTouch Library . For implementation details and

other information, refer to the QTouch Library User Guide - also available for download from the website.

ATmega48PB/88PB/168PB

Datasheet Summary

DS40001910A-page 19