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Project Description

Note

afthermal is currently in alpha status. This is a snapshot release of the development branch. While it is used productively, some features may be unfinished or undocumented.

afthermal is a driver/library for the popular Adafruit (originally Cashino A2) thermal printer [1].

Partially, it is inspired by previous efforts:

afthermal try to be more pythonic and efficient than previous efforts, which have mostly been 1:1 ports from other languages. Additionally it is not focused on education but rather on being a reliable library for handling this kind of hardware.

Features include:

  • Comfortable handling of text formatting
  • Adapters to print images from PIL / Pillow as well as OpenCV
  • A fast Floyd-Steinberg implementation to dither OpenCV images.
  • Command-line utilities for calibrating the printer for optimum speed and quality, as well as other capabilities
  • Support for printing QR codes via PyQRCode without having to render them into images first
[1]Specification is available at http://www.adafruit.com/datasheets/CSN-A2%20User%20Manual.pdf

Installation

afthermal is installable from pip. It supports an extra feature named tools, installing it will include cli tools for calibrating the printer, printing test images or other tasks:

$ pip install 'afthermal[tools]'

It includes a C extension for Floyd-Steinberg dithering, since OpenCV does not ship with a dithering function. For this reason C-modules must be compileable when installing afthermal.

Full docs

The complete documentation is housed at http://pythonhosted.org/afthermal.

Release history Release notifications

History Node

0.3.2.dev1

This version
History Node

0.3.1

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Filename, size & hash SHA256 hash help File type Python version Upload date
afthermal-0.3.1.tar.gz (44.2 kB) Copy SHA256 hash SHA256 Source None Sep 14, 2015

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