I have a project whereby I'd like to print to a Polaroid Zip printer. If you haven't heard of one of those, it's a small, portable wireless printer that you can print to via bluetooth.
There was a previous version called the Polaroid PoGo which someone managed to print to for a similar project. They wrote about it here:
http://opalfruits.net/blog/index.php/20 ... er-part-2/
I have a Raspberry Pi 3 Model B, and I'm trying to use the built in Bluetooth adaptor to print to my Zip.
I've followed the steps as in the post, but when I try to connect using 'sudo rfcomm bind /dev/rfcomm0 70:2C:1F:15:96:AD 1' I get an error:
Can't open RFCOMM control socket: Protocol not supported
I know very little about bluetooth networking and protocols so I'm not really sure where to start here. Is there a way I can query what protocols the printer supports and then see if there are packages available to add the necessary support?