Android Question Print on serial port

[nejib01]

Dear friends,
I have a android pos system Citaq H10 with built in thermal printer , wich prints from serial port, port ttys1 i think . Im trying to make my old soft with b4a run on this device,but i can't do print.
Some one gave me the sdk (source code and library) of the manufacturer that i can't use because i don't know how to implement in b4a.
I need your helps to get a small code to test the printer
nb:
1- the apk delivred in this sdk work fine and makes printer test
2- I found a post wrote by Victor Medrano with a library 'Cprinterlib' but without samples and how to use, if possible a help
Thanks

 

[MicroDrie]

I think your first problem is connecting to the printer. After that, your second problem is to control the printer with the correct printer codes. My experience with printers is that I usually manage to display a simple 12345 string followed by a CR/LF or at least get a response from the printer. I would start with something like the UsbSerial Ver 2.4 to see if it is possible to connect to the printer.

 

[nejib01]

Thanks for replying , as i sad it's not a Usbserial printer , but a real serial ttyS1
Solved by following this nice share from "qle" member Open/Read/Write - UART Serial device , i'm so happy to see my device print on this serial printer , i'll try now to use escpos commands .
Thanks for all , i love B4X.

 

[MicroDrie]

I'm happy to be able to help you on your way, maybe this will also help you to explore the ESC/POS codes in Line Thermal Printer ESC/POS® Mode Command Specifications Revision 2.52. Be aware that the installed driver perhaps not all possibilities support in case its supports an older build-in software version.

 

[nejib01]

Thanks again , i'll try

 

[hamza827]

hey guys i need help . I have a citaq H10-1 and i need to make app for this device . the problem is I can't print because there is a problem about read/write permission