Register Value Settings And Digital Output Pin Use - Abov AT3108U Quick Start Manual

3. Building and running project
3.5.5

Register value settings and digital output pin use

Initial setups of the Touch detection reference value (THD; Threshold), Touch Sensing CH

(channel), and other registers are possible.
Four pins (from the OUT1 pin to the OUT4 pin) are assigned for Digital Outputs by default. If

the Touch Sensing CH pin is not used, it can be controlled as a Digital Output pin. In this way,
up to 16 pins can be controlled as Digital Output pins (the GPIO_CTRL1 and GPIO_CTRL2
registers).
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AT3108U Demo board quick start guide