Hi all, I have try the example in http://wiki.friendlyarm.com/wiki/index.php/RPi.GPIO_:_NanoPi_NEO/NEO2/Air_GPIO_Programming_with_Python in the nanopi-neo-air_ubuntu-oled_4.11.2_20170705.img but not working instead in the nanopi-neo-air_ubuntu-core-xenial_4.11.2_20170705.img it work. How can I set t...