Having trouble using feed rate override since moving SPJS to an RP3. Does CP understand the ttyUSB0 type serial port names?
Can you perhaps better explain the problem you’re seeing?
The SPJS widget says it can not find a serial port named ttyUSB0. Here’e a link to a screen shot.
You are typing your command wrong. It would be /dev/ttyUSB0
Got it. Guess my UNIX skills are a a little rusty!