Control the Adafruit/Sparkfun thermal printer from node.js

  

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

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