Library for Max72XX LED Matrix Display v2.3

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Downloads: 602
Released: Mar 27, 2014
Updated: Apr 5, 2014 by 8136821
Dev status: Stable Help Icon

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Source Code MD_MAX72xx Library
source code, 1832K, uploaded Mar 27, 2014 - 602 downloads

Release Notes

The library implements functions that allow the MAX72xx to be used for LED matrices (64 individual LEDs), allowing the programmer to use the LED matrix as a pixel device, displaying graphics elements much like any other pixel addressable display.

In this scenario, it is convenient to abstract out the concept of the hardware device and create a uniform and consistent pixel address space, with the libraries determining device and device-element address. Similarly, control of the devices should be uniform and abstracted to a system level.

The library still retains flexibility for device level control, should the developer require, through the use of overloaded class methods.

March 2014 - version 2.3
  • Extensive rework of the font system
    • New font Microsoft Excel VBA based builder tool available
    • Removed USE_FONT_ADJUST and related code - replace by builder tool
    • Fixed width font has been removed from the library. Definition still available in font builder
    • fontype_t definition changed to suit new requirements
  • Transform zoning implemented (contiguous subset of services)
    • Transformation functions, control, clear, setRow methods overloaded with range specifier
    • User callback for L/R rotation function syntax added a device parameter
    • New Zones example
  • USE_*_HW hardware types now separated out for future flexibility
    • Rework of the library to use new schema for defining hardware characteristics
    • New utility code to map out digits and segments for unknown hardware types
  • Rechecked and reworked examples for new library

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