Cordova-Plugin-BTPrinter

A cordova plugin for bluetooth printer for android platform.

This code is being adapted from a fork of Cordova-Plugin-Bluetooth-Printer, of free use and modifications that will arise for the improvement of the plugin.

Suggestions, critiques are welcome, participate and send a commit helping to improve the plugin for the community.

Thanks!

Support

• Text simple
• Print text with size and align
• Print image from path with align
• Print image from base64 with align
• Print title with size and align
• POS printing
• Print QRCode
• Print Barcode

Install

Using the Cordova CLI and NPM, run:

cordova plugin add https://github.com/CesarBalzer/Cordova-Plugin-BTPrinter.git

Usage

Get list of paired bluetooth devices, including printers, if any:

BTPrinter.list(function(data){
        console.log("Success");
        console.log(data); // paired bluetooth devices array
    },function(err){
        console.log("Error");
        console.log(err);
    });

Returns an array with the format:

data[0] = Device 1 name
data[1] = Device 1 MAC address
data[2] = Device 1 type
data[3] = Device 2 name
data[4] = Device 2 MAC address
data[5] = Device 2 type
...

Where device name is the required string to connect to the printer.

Check Bluetooth status

BTPrinter.status(function(data){
	console.log("Success");
	console.log(data) // bt status: true or false
},function(err){
	console.log("Error");
	console.log(err)
});

Connect printer

BTPrinter.connect(function(data){
	console.log("Success");
	console.log(data)
},function(err){
	console.log("Error");
	console.log(err)
}, "PrinterName");

Check if printer is connected

BTPrinter.connected(function(data){
	console.log("Success");
	console.log(data) // connected: true or false
},function(err){
	console.log("Error");
	console.log(err);
});

Disconnect printer

BTPrinter.disconnect(function(data){
	console.log("Success");
	console.log(data)
},function(err){
	console.log("Error");
	console.log(err)
}, "PrinterName");

Obs:

I thought it best to create the function within a timeout

setTimeout(function(){
    BTPrinter.disconnect(function(data){
	console.log("Success");
	console.log(data)
    },function(err){
	console.log("Error");
	console.log(err)
    }, "PrinterName")
}, 1500);

Set text encoding

BTPrinter.setEncoding(function(data){
    console.log("Success");
    console.log(data)
},function(err){
    console.log("Error");
    console.log(err)
}, "ISO-8859-1")

Refer to printer's manual for supported encodings and codepages.

Print simple text

BTPrinter.printText(function(data){
    console.log("Success");
    console.log(data)
},function(err){
    console.log("Error");
    console.log(err)
}, "String to Print")

Print text with size and align

BTPrinter.printTextSizeAlign(function(data){
    console.log("Success");
    console.log(data)
},function(err){
    console.log("Error");
    console.log(err)
}, "String to Print",'0','0')//string, size, align

Print image from path with align

BTPrinter.printImageUrl(function(data){
    console.log("Success");
    console.log(data);
},function(err){
    console.log("Error");
    console.log(err);
}, "Path String",'0');//path image, align

In android tests with /storage/emulated/0/Pictures/myfolder/myimage.jpg - size max: 300x300px.

Print image from base64 with align

• with align still in tests not work alignment)

BTPrinter.printBase64(function(data){
    console.log("Success");
    console.log(data);
},function(err){
    console.log("Error");
    console.log(err);
}, "Image Base64 String",'0');//base64 string, align

Print title with size and align

• with align still in tests not work alignment)

BTPrinter.printTitle(function(data){
    console.log("Success");
    console.log(data);
},function(err){
    console.log("Error");
    console.log(err);
}, "String text",'0');//string, size, align

POS printing

BTPrinter.printPOSCommand(function(data){
    console.log("Success");
    console.log(data)
},function(err){
    console.log("Error");
    console.log(err)
}, "0C");//OC is a POS command for page feed

Print QRCode

var data = "https://github.com/CesarBalzer/Cordova-Plugin-BTPrinter";
var align = 1; /* 0, 1, 2 */
var model = 49; /* https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=140 */
var size = 32; /* https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=141 */
var eclevel = 50; /* https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=142 */
BTPrinter.printQRCode(function(data){
    console.log("Success");
    console.log(data);
},function(err){
    console.log("Error");
    console.log(err);
}, data, align, model, size, eclevel);

Print Barcode

var system = 0; /* Barcode system, defined as "m" at https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=128 */
var data = "012345678901"; /* Barcode data, according to barcode system */
var align = 1; /* 0, 1, 2 */
var position = 2; /* Text position: https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=125 */;
var font = 0; /* Font for HRI characters: https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=126 */
var height = 64; /* Set barcode height: https://reference.epson-biz.com/modules/ref_escpos/index.php?content_id=127*/
BTPrinter.printBarcode(function(data){
    console.log("Success");
    console.log(data);
},function(err){
    console.log("Error");
    console.log(err);
}, system, data, align, position, font, height);

Notice that UPC-A, UPC-E, EAN13 and ITF accepts only:

Numbers 0-9

Sending other characters will return a plugin error with the proper description.

CODE39 accepts:

0 – 9, A – Z, SP, $, %, *, +, -, ., /

CODABAR accepts:

0 – 9, A – D, a – d, $, +, −, ., /, :

Size options

     0 = CHAR_SIZE_01 // equivalent 0x1B, 0x21, 0x00
     8 = CHAR_SIZE_08 // equivalent 0x1B, 0x21, 0x08
    10 = CHAR_SIZE_10 // equivalent 0x1B, 0x21, 0x10
    11 = CHAR_SIZE_11 // equivalent 0x1B, 0x21, 0x11
    20 = CHAR_SIZE_20 // equivalent 0x1B, 0x21, 0x20
    30 = CHAR_SIZE_30 // equivalent 0x1B, 0x21, 0x30
    31 = CHAR_SIZE_31 // equivalent 0x1B, 0x21, 0x31
    51 = CHAR_SIZE_51 // equivalent 0x1B, 0x21, 0x51
    61 = CHAR_SIZE_61 // equivalent 0x1B, 0x21, 0x61

Align options

    0 = ESC_ALIGN_LEFT // equivalent 0x1B, 0x61, 0x00
    1 = ESC_ALIGN_CENTER // equivalent 0x1B, 0x61, 0x01
    2 = ESC_ALIGN_RIGHT // equivalent 0x1B, 0x61, 0x02

Plugin Demo App

To test most of the plugin's functions, you can use the free BTPrinter Plugin Demo app by Andrés Zsögön, and inspect the source code for more details.

Sample receipt

The following sample receipt was printed with the plugin demo app using a generic portable bluetooth printer: