Yes, I follow the steps carefully from " getting started page for the arduberry " without problem.
I download the most updated Raspbian for Robots in my booting SD card (2017.06.21_Dexter_industries_jessie.zip)
Why COM1 is missing (or can't open) among the port selection ( only ttyAMA0 or ttyS0 available) ?
I am curious which port to use then (dev/ttyAMA0 or dev/ttyS0) while try to upload sketch? or does it matter ? and what difference does it make ?