I try to compile with a pcduino on ArduinoIDE.
But every time I get the message : open /proc/adc0 failed

and list module to show no ADC module.

This problem is the ADC module is not loaded.

OK. Let us add ADC module on pcDuino .

It’s really simple. Just type this command:

$sudo modprobe adc
$lsmod

The ADC module have been loaded.

$cat /proc/adc0
$cat /proc/adc1
$cat /proc/adc2
$cat /proc/adc3
$cat /proc/adc4
$cat /proc/adc5

Maybe you wanna remove adc module . type “sudo rmmod adc”

sudo rmmod adc