August 29, 2012 AT 1:04 pm

ThermalPrinter library- OpenProcessing

Adafruit 368

ThermalPrinter library- OpenProcessing. Bruno writes -

This is a library to facilitate printing on the thermal printer sold from Adafruit. It supports printing text, barcodes, and images. Almost all functions are documented except the ones used for converting color or grayscale images to black and white. The function “printImageWithEffect()” converts the supplied image to grayscale, resizes it to one third of the printer resolution, calculates for each pixel the amount of gray and transforms it to a 3×3 grid of pixels which has some pixels black and some white effectively making it look more or less black. Enjoy!

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Window-101

Adafruit IoT Printer Project Pack Internet of Things printer. Build an Internet of Things connected mini printer that will do your bidding! This is a fun weekend project that comes with a beautiful laser cut case. Once assembled, the little printer connects to Ethernet to get Internet data for printing onto 2 1/4 wide receipt paper. The example sketch weve written will connect to Twitters search API and retrieve and print tweets according to your requests: you can have it print out tweets from a person, a hashtag, mentioning a word, etc! Once youve gotten that working, you can of course easily adapt our sketch to customize the printer.

The project is not very difficult but does require some light soldering, so youll want to have a little experience with a soldering iron. Youll also need a small flathead screwdriver to assemble the box. Its also best if youve had a little Arduino experience so you can feel comfortable downloading the IDE and uploading our example sketch.

Contains:

Kit-Parts

This pack does not contain an Arduino+Arduino Ethernet Shield, Arduino Ethernet or Ethernet cable To complete the project you will need to add either an Arduino + Ethernet Shield or an Arduino UNO Ethernet. If youre using an Arduino UNO Ethernet you will also need an FTDI friend or FTDI cable to upload the sketch. A plain straight-thru Ethernet cable is also required (any length)

Before purchasing, please check out the full tutorial with images, code, etc!

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