https://github.com/xseignard/thermalprinter

Use node.js to communicate with Adafruit/Sparkfun Thermal Printer
https://github.com/xseignard/thermalprinter

Last synced: 8 days ago
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Use node.js to communicate with Adafruit/Sparkfun Thermal Printer

• Host: GitHub
• URL: https://github.com/xseignard/thermalprinter
• Owner: xseignard
• Created: 2014-05-21T03:26:32.000Z (over 10 years ago)
• Default Branch: master
• Last Pushed: 2023-10-11T15:54:56.000Z (over 1 year ago)
• Last Synced: 2024-12-27T08:08:28.059Z (15 days ago)
• Language: JavaScript
• Homepage:
• Size: 3.1 MB
• Stars: 105
• Watchers: 8
• Forks: 33
• Open Issues: 10
• Metadata Files:
  • Readme: README.md

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README

        
# Control the Adafruit/Sparkfun thermal printer from node.js

[![npm](https://img.shields.io/npm/v/thermalprinter.svg?style=flat-square)](https://www.npmjs.com/package/thermalprinter) [![Travis](https://img.shields.io/travis/xseignard/thermalPrinter.svg?style=flat-square)](https://travis-ci.org/xseignard/thermalPrinter) [![Code Climate](https://img.shields.io/codeclimate/coverage/github/xseignard/thermalPrinter.svg?style=flat-square)](https://codeclimate.com/github/xseignard/thermalPrinter/coverage)

Largely inspired by http://electronicfields.wordpress.com/2011/09/29/thermal-printer-dot-net/

You can print images, but they need to be 384px wide.

It's a fluent API, so you can chain functions, but don't forget to call `print` at the end to actually print something!

## Crappy schematics

You'll need an USB/Serial converter.

![schematics](/images/schema.png)

## Usage

- install with `npm install thermalprinter --save` 

- check the demo sample:

```js

var SerialPort = require('serialport'),

	serialPort = new SerialPort('/dev/ttyUSB0', {

		baudRate: 19200

	}),

	Printer = require('thermalprinter');

var path = __dirname + '/images/nodebot.png';

serialPort.on('open',function() {

	var printer = new Printer(serialPort);

	printer.on('ready', function() {

		printer

			.indent(10)

			.horizontalLine(16)

			.bold(true)

			.indent(10)

			.printLine('first line')

			.bold(false)

			.inverse(true)

			.big(true)

			.right()

			.printLine('second line')

			.printImage(path)

			.print(function() {

				console.log('done');

				process.exit();

			});

	});

});

```

## Demo

![demo](/images/demo.gif)