QTouch Button

There is one self capacitance button available on the SAM C21 Xplained Pro board that can be used as I/O. This QTouch button is intended to be driven by the built-in Peripheral Touch Controller (PTC) of the device.

Note: To get started with QTouch, refer to QTouch®AtmelLibrary and QTouch®AtmelComposer.
Table 1. QTouch Connection
SAM C21 pin Silkscreen text
PA05 QT BTN1
Parent topic: Hardware Revision History and Known Issues