“This application note describes the techniques to mitigate the issues caused by moisture in QTouch designs. (PDF!)” The basic conductive nature of water poses a great challenge to capacitive touch technology. This is aggravated by the varying salinity of water and the presence of impurities. Water accumulation can occur in a variety of unpredictable ways, […]
Tag Archives: QTouch
App note: ATtiny40 Qtouch reference design
Here is a reference design from Atmel designed to demonstrate the Qtouch capabilities of the ATtiny40 microcontroller. Only one pin, and a PCB pad is needed to make a capacitive touch button. The reference design is to demonstrate the capabilities of the Atmel ATtiny40, which supports QTouch, the latest capacitive touch technology. The technology requires […]
App note: Using Philipp springs to create touch keys
Here is an app note from Atmel describing how build DIY touch keys using Philipp springs (or any spring made from conductive material) and their qTouch ICs. This design allows PTH LEDs to be mounted inside the keys. The Philipp™ spring is a simple and cost-effective method of creating a touch key on a dielectric […]
QTouch library for Atmel MCUs
The Atmel QTouch Library is a royalty-free software library (GCC and IAR™) for developing touch applications on standard Atmel AT91SAM and AVR microcontrollers. Developers can use it to integrate touch-sensing capability into their applications by linking the library into firmware. The library can be used to develop single-chip solutions for many control applications or to […]