Revision History

Aug 2018 version 3.0.1

• Fixed problem with calculating font width in info structure.

June 2018 version 3.0.0

• Implemented new font file format (file format version 1).
• Removed 'drawXXX' graphics functions to new MD_MAXPanel library.
• Removed font indexing as this never used.
• Added getFontHeight() method.
• Module type now specified at run time.

Apr 2018 version 2.11.1

• Another attempt to further clarify editing of header file for hardware changes.

Apr 2018 version 2.11.0

• Restructured header file to make hardware flags more obvious
• Added drawHLine(), drawVLine(), drawRectangle() methods

Mar 2018 version 2.10.1

• Reworked HW Mapping utility.
• setColumn() parameter changed from uint8_t to uint16_t to allow for more than 256 column in the matrix [BUG]

Nov 2017 version 2.10.0

• Changed SPI buffer handling and isolation of AVR specific features (eg PROGMEM)
• Added MD_MAX72xx_Message_ESP8266 example
• Minor source file cleanup
• Added Extended ASCII font, vertical rotated font and RobotEyes font in fontbuilder
• Modified font builder output code for consistency with new code
• Added getFont(), getMaxFontWidth() methods
• Changed example - replaced MD_KeySwitch with new MD_UISwitch library

Nov 2016 version 2.9.0

• Added WordClock example
• Deprecated USE_LIBRARY_SPI as no problems reported with new implementation
• Changed MD_ branding to new MajicDesigns diamond
• Small adjustments to initialization code

Mar 2016 version 2.8

• Added example Message_SD and renamed Message to Message_Serial
• Added Pacman example
• Added PushWheel example
• Added USE_LIBRARY_SPI to enable library SPI object
• Modified all examples to conditionally include <SPI.h>
• FontBuilder modified to handle definitions for double height fonts
• New txt2font utility for easier font creation from a text file
• Revised and re-organized documentation; expanded section on fonts

April 2015 version 2.7

• Changed to Daft Punk example to run without switch
• Now supporting IDE Library Manager

February 2015 version 2.6

• Improvements to HW_Mapper utility
• Added HW_USE_FC16 for FC-16 display modules
• Added USE_HW_OTHER for user defined hardware configuration
• Fixed incorrect spelling for HW_REV_COLS in transformBuffer() & corresponding bug
• Added PrintText_ML example

February 2015 version 2.5

• Documented process for adding new hardware module type
• Fixed PROGMEM definitions for IDE version 1.5.7 compile error
• Added Daft Punk example code
• Updated HW_Mapper example/utility with built-in instructions
• Minor problems with Parola font setting interaction fixed

April 2014 version 2.4

• Improved reliability of initialization code to remove artifacts
  • Changed order of hardware initialization for SS, _csPin
  • Changed initialization sequence at begin()
  • Fixed memset bug identified by bperrybap
• Reworked command SPI transmissions for efficiency
• Cleanup up compiler warnings on inline wrapper code functions
• Cleaned up examples begin() - better defined library default values
• Reviewed and tidied up some documentation

March 2014 - version 2.3

• Extensive rework of the font system
  • New Microsoft Excel VBA based font 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

November 2013 - version 2.2

• Replaced reference to SPI library with inline code to allow for different select lines
• Obsoleted INCLUDE_HARDWARE_SPI conditional compile switch
• Fixed legacy code function name error when USE_FONT_ADJUST switch turned on
• Implemented USE_PAROLA_HW to allow cheaply available matrix modules to be used in ganged mode
• Fixed reversal of bit field for set/get Row/Column functions -> flipped charset data
• Added Eyes example program
• Upgraded and reorganized documentation

June 2013 - version 2.1

• Include the selection of hardware SPI interface (10x speed improvement)
• Tidied up comments

April 2013 - version 2.0

• Major update and rewrite of library code:
  • Improved speed and efficiency of code
  • Increased level of abstraction in the library for pixel methods
  • Increased level of abstraction for character and font methods
  • Increased number of functions and added variable sized font
  • Changed defines to enumerated types within the scope of the class
  • Updated functionality to simplify controlling multiple devices
• Changed text and comments to be aligned to doxygen documentation generation

June 2012 - version 1.0

• Incorporated elements of Arduino LedControl (Eberhard Fahle) and MAX7219 libraries
• Easier functionality for pixel graphics treatment of 8x8 matrices