11-08-2020, 07:33 PM
Hey bob_the_vampire,
Is it possible that something else is using your serial port? Also, does the mariner user have access to the serial port?
Can you try installing something like minicom and connect to /dev/serial0 with baud rate 115200?
Once you do that, if you send a command such as M4000, does the printer reply successfully? What if you send the command M4006?
Is it possible that something else is using your serial port? Also, does the mariner user have access to the serial port?
Can you try installing something like minicom and connect to /dev/serial0 with baud rate 115200?
Once you do that, if you send a command such as M4000, does the printer reply successfully? What if you send the command M4006?