flutter_epos_bluetooth 0.0.1

The library allows to print receipts using an ESC/POS thermal Bluetooth printer.

flutter_epos_bluetooth

TODO (PRs are welcomed!)

• Split byte data into chunks: issue
• Print QR Codes using the GS ( k command (printing QR code from an image already supported)
• PDF-417 Barcodes using the GS ( k command
• Line spacing using the ESC 3 <n> command

How to Help

• Test and report bugs
• Share your ideas about what could be improved (code optimization, new features...)
• PRs are welcomed!

Tested Printers

Here are some printers tested with this library. Please add the models you have tested to maintain and improve this library and help others to choose the right printer.

Generate a Ticket

Simple Ticket with Styles:

Ticket testTicket() {
  final Ticket ticket = Ticket(PaperSize.mm80);

  ticket.text(
      'Regular: aA bB cC dD eE fF gG hH iI jJ kK lL mM nN oO pP qQ rR sS tT uU vV wW xX yY zZ');
  ticket.text('Special 1: àÀ èÈ éÉ ûÛ üÜ çÇ ôÔ',
      styles: PosStyles(codeTable: PosCodeTable.westEur));
  ticket.text('Special 2: blåbærgrød',
      styles: PosStyles(codeTable: PosCodeTable.westEur));

  ticket.text('Bold text', styles: PosStyles(bold: true));
  ticket.text('Reverse text', styles: PosStyles(reverse: true));
  ticket.text('Underlined text',
      styles: PosStyles(underline: true), linesAfter: 1);
  ticket.text('Align left', styles: PosStyles(align: PosAlign.left));
  ticket.text('Align center', styles: PosStyles(align: PosAlign.center));
  ticket.text('Align right',
      styles: PosStyles(align: PosAlign.right), linesAfter: 1);

  ticket.text('Text size 200%',
      styles: PosStyles(
        height: PosTextSize.size2,
        width: PosTextSize.size2,
      ));

  ticket.feed(2);
  ticket.cut();
  return ticket;
}

Print a Ticket

PrinterBluetoothManager printerManager = PrinterBluetoothManager();

printerManager.scanResults.listen((printers) async {
  
});
printerManager.startScan(Duration(seconds: 4));



printerManager.selectPrinter(printer);
final PosPrintResult res = await printerManager.printTicket(testTicket());

print('Print result: ${res.msg}');