Skip to content


Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Arduino Library for Small Thermal Printers
branch: master

update datatype for Arduino 1.5.7

prog_uchar no longer defined in Arduino 1.5.7
latest commit ce11637f6b
driverblock driverblock authored


This is an Arduino library for the Adafruit Thermal Printer.
Pick one up at -->
These printers use TTL serial to communicate, 2 pins are required.

Full tutorial with wiring diagrams, images, etc. is available at

Before loading the example code, or even opening the Arduino software,
place the Adafruit_Thermal folder in your Arduino library.

On your Mac:: In (home directory)/Documents/Arduino/Libraries
On your PC:: My Documents\Arduino\libraries
On your Linux box: (home directory)/sketchbook/libraries

Adafruit invests time and resources providing this open source code.
Please support Adafruit and open-source hardware by purchasing products
from Adafruit!

Written by Limor Fried/Ladyada for Adafruit Industries, based on Thermal
library from 
MIT license, all text above must be included in any redistribution.
Something went wrong with that request. Please try again.