If you have UP Squared Atom and you would like to use the ADC function forĀ 40 pin, please download the archive and follow the documentation inside
Note: the Ubuntu version should beĀ Ubuntu 16.04.2 (64-bit) and the kernel should be Linux 4.8.0-36-generic-x86_64
UP Squared Atom E39xx ADC function for 40pin.zip
