Grbl controller error message

Hi friends,

I am new to this Forum as well as to Arduino and CNC machines.

I have a problem with my newly built CNC plotter machine. I tried to send a gcode text graphic  (created with Inkscape) to Arduino Nano board using GRBL controller software. But when I hit the open button I get a message “No data from COM port after connecting. Expecting Grbl version string.”

I selected the correct serial port and baud rate as 9600.

Could someone help me in this regard please. I am really desperated. Please ask me if you need any further information regarding this issue.

K. Fernando

Hi @kusmanf,

Thanks for being part of the GitHub Community Forum! We’re glad you’re here.

I wanted to jump in here, and mention that if you don’t get the help you’re looking for from this particular community, you might want to try getting help somewhere that focuses on arduino. It’s definitely possible another GitHub user might have run into this same issue and can help, but the GitHub Community Forum focuses primarily on topics related to GitHub. We want to make sure you’re getting the best support you can, but this forum may not be the right place for this particular topic.

Best of luck!


Thank you very much for your advice.


K. Fernando