The SAM4L Xplained Pro kit has one QTouch button and the connection to the SAM4L
is shown in the table below. The QTouch sensor, a copper fill, is located on the second
layer (GND) of the board. The sensor is shielded by the third and the bottome layer (VCC
and signal layer respectively) and therefore the sensor is not affected by any touches
from the back side of the board.
Table 1. QTouch Button
ConnectionsPin on SAM4L |
Function |
PC13 |
CATB_SENSE15 |
PC14 |
CATB_DIS |