ADC

Symbol Explanation

• SDK$: Refers to the source code path.

• console$: Generally refers to the command-line console of the mainboard. Mainboard Command-line Console

• ADB$: Android Debug Bridge command-line tool, generally refers to the environment where ADB can be run.

Hardware Location

The ADC is located in the expansion pins, as shown in the following figure.

image-20250422110732652

Read ADC Values

console$ cat /sys/bus/iio/devices/iio\:device0/in_voltage*_raw

Example:

Read the voltage value of channel 4.

console$ cat /sys/bus/iio/devices/iio\:device0/in_voltage4_raw