Hi, new to forum and to Marlin so please be patient with me :-)
I am looking at a Marlin board to close a relay whilst running a cnc with a plasma cutter attached.
From my reading on the internet pin D9 (fan) seems to be the one people use for this sort of thing and use Grbl command M106/M107 to switch things on and off.
Where I'm falling down in my head with this sort of thing is this:
Exactly how do we assign pin D9 for such a task in Marlin?
How does say Lightburn know that the command M106 means to make pin D9 live?
Sorry for the noob questions, Laurence
I am looking at a Marlin board to close a relay whilst running a cnc with a plasma cutter attached.
From my reading on the internet pin D9 (fan) seems to be the one people use for this sort of thing and use Grbl command M106/M107 to switch things on and off.
Where I'm falling down in my head with this sort of thing is this:
Exactly how do we assign pin D9 for such a task in Marlin?
How does say Lightburn know that the command M106 means to make pin D9 live?
Sorry for the noob questions, Laurence