Yes, that is correct.
To upload a different version of grbl into the X-controller you would use the same procedure as for the Arduino.
https://inventables.desk.com/customer/en/portal/articles/2069033-grbl?b_id=9563
Yes, that is correct.
To upload a different version of grbl into the X-controller you would use the same procedure as for the Arduino.
https://inventables.desk.com/customer/en/portal/articles/2069033-grbl?b_id=9563