DART-6UL ADC
From Variscite Wiki
DART-6UL - ADC
ADC channel 0 is connected to the user button. It has pull-up to 3.3V.
Reading the ADC value will return 3000+ value in case of button released and 0+ in case of button pressed.
# cd /sys/bus/iio/devices/iio:device0 # cat in_voltage0_raw push the user button # cat in_voltage0_raw