Do you have a voltmeter? That is by far the best way to tell… measure the output of the controller to see if it responds.
Do you know if it supplies or sinks current.?
I thought @berainlb has one of these and can probably better advise you as to what codes are being sent and the proper configuration of the SD card.
I don’t see anything directly that specifies air assist, although I know they do it with a smoothie.
The M104, from this link is
M104 Set Extruder Temperature - S<temperature> M104 S190
Is this the right code related to the SD configuration?
Voltmeters on Amazon start at <$10… a good investment that you can use for many things …
Check out this thread and see if it helps…
