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Overview
The QTouch Library is a royalty-free software library (GCC and IAR) for developing touch applications on standard 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 reduce chip count in more complex applications.
The library supports both QTouch (self-capacitance) and QMatrix (mutual-capacitance) acquisition methods.
The libraries are available for two compilers:
- GCC: Distributed through the Gallery
- IAR: Downloads available below
QTouch Library PTC: Use this library for devices with PTC.
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Documentation
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| Atmel QTouch General Library Peripheral Touch Controller User Guide | Legacy Collaterals | Download | ||
| Atmel QTouch Modular Library Peripheral Touch Controller (v1.0.000) | Legacy Collaterals | Download | ||
| Atmel QTouch Library Peripheral Touch Controller (v5.9.211) | Legacy Collaterals | Download | ||
| Atmel SAM C20 QTouch Safety Library Peripheral Touch Controller User Guide | Legacy Collaterals | Download | ||
| QTAN0062: QTouch and QMatrix Sensitivity Tuning for Keys, Sliders and Wheels | Application Notes | Link | Download | |
| Atmel QTouch Library 5.0 | User Guide | Download | ||
| AVR259: ATtiny40 QTouchADC Demonstration Kit | Application Notes | Link | Download | |
| AVR262: QTouch with USB HID | Application Notes | Link | Download | |
| AVR3000: QTouch Conducted Immunity | Application Notes | Link | Download | |
| Atmel QTouch Library | User Guide | Download | ||
| AT01295: Integration of QTouch Library with BitCloud ZigBee Light Link | Application Notes | Link | Download | |
| Atmel QTouch Surface Library Peripheral Touch Controller User Guide | User Guide | Download | ||
| Atmel SAM D QTouch Safety Library Peripheral Touch Controller User Guide | User Guide | Download | ||
| QTouch Library Selection Guide | Miscellaneous | Download |