How do I permanently change the boot order? I installed ubuntu 16.04 on a m.2 SSD and left Windows intact. I tried changing the boot order in the BIOS but it doesn't seem to save my settings and will continue to boot into Windows.
Has anyone upgraded ubuntu from 16.04 to 18.04? Will it break any LattePanda functionality?
Are there any non-arduino GPIO pins? If not, can I control the arduino pins from Linux in a sub-millisecond timeframe?