Python module to drive LED Matrices & 7-segment displays (MAX7219) and RGB NeoPixels (WS2812 / APA102)
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README.rst

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Luma.LED_Matrix

Display drivers for MAX7219, WS2812, APA102

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Python library interfacing LED matrix displays with the MAX7219 driver (using SPI) and WS2812 & APA102 NeoPixels on the Raspberry Pi and other linux-based single board computers - it provides a Pillow-compatible drawing canvas, and other functionality to support:

  • multiple cascaded devices
  • LED matrix, seven-segment and NeoPixel variants
  • scrolling/panning capability,
  • terminal-style printing,
  • state management,
  • dithering to monochrome,
  • pygame emulator,
  • Python 2.7 and 3.4+ are both supported

Documentation

Full documentation with installation instructions and examples can be found on https://luma-led-matrix.readthedocs.io.

max7219 matrix

A LED matrix can be acquired for a few pounds from outlets like Banggood. Likewise 7-segment displays are available from Ali-Express or Ebay.

max7219 sevensegment

max7219 cascaded

max7219 box

max7219 emulator

Breaking changes

Version 0.3.0 was released on 19 January 2017: this came with a rename of the github project from max7219 to luma.led_matrix to reflect the changing nature of the codebase.

There is no direct migration path, but the old docs and PyPi packages will remain available indefinitely, but that deprecated codebase will no longer recieve updates or fixes.

The consequence is that any existing code that uses the old max7219 package should probably be updated.

License

The MIT License (MIT)

Copyright (c) 2013-18 Richard Hull & Contributors

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.