In the beginning, RawBT meant data transmission via Bluetooth (raw  over BT). My goal is to make the acronym decipher as follows:
R.a.w.B.T. - Realy amazing with Bluetooth thermal printers.

The application works as a print service (standard printing), makes it easy to implement printing documents from your website or from an application using standard and specially developed methods of interaction.

You also can easily print texts and images from your phone.
Find menu items "print", "share", "send" or "open" in any app, click and select RawBT.
(Browser,Mail,Image Gallery,File Manager and many other application)

Connected type:
- Bluetooth
- USB (if hardware support)
- Ethernet or WIFI (9100 port.  It's called the AppSocket protocol)

Printers models supported:
I believe that it is clearer to choose the necessary command for printing graphics than to guess which one is hidden behind the name of the printer model.
- GS v 0 - supported by most printers;
- ESC * 33 - compatible with Epson;
- ESC X or ESC X 4 - two commands for Star compatible;
- and other possible commands.
Photo thermal printers: Paperang,Peripage,Cats/Panda. 


Attention! The licensed version differs only in the lack of notification on the printout. Speed, possible errors and print quality are the same in both versions. By paying a license, you agree that the program is suitable for you as it is. 
The license does not include consultation.

App site:
rawbt.ru - FAQ & instructions

Print tools for bluetooth thermal printers