Quote Originally Posted by curious aardvark View Post
But if anyone has any idea how to proceed from here - I'd really like to know :-)
All the tft v3.0 screens from biqu or bigtreetech have built in 32 bit processors right on them. They are feature packed and you can just wire a filament runout switch into them and not have to make any firmware changes. You can send gcode to your mainboard from the tft v3.0. And they have a header on them for the wifi module. SO you might be able tu use one of these screens with a wifi module in the back of it to send a file to the tft's sd card slot and then command the print to start from there? And you could do that without any firmware changes or re wiring the printer for a new mainboard. The tft's are all plug n play because they communicate over that rx and tx serial connection. like a usb device.