| Parola for Arduino 3.7 Text effects for LED Matrix modular hardware

Loading...
Searching...
No Matches
Revision History

Nov 2025 - version 3.7.6

- Fixed issues with Parola_Diag code (PA_SCROLL_UP/DOWN_LEFT/RIGHT) behavior with zones

October 2025 - Version 3.7.4, 3.7.5

- Incorrect changes wrongly pushed

Mar 2024 - version 3.7.3

- Reviewed uint8_t to uint16_t animation loop indices for large displays.
- Added contributed speites to sprite library (wheel, hourglass).

Jan 2024 - version 3.7.2

- removed debug message remnants from begin()

Jul 2023 - version 3.7.1

- added getIntensity() to Parola object

Jun 2023 - version 3.7.0

- begin() returns bool status
- fixed intensity initialisation of multi-zone displays at startup

Nov 2022 - version 3.6.2

- Fixed uninitialised _intensity class variable

May 2022 - version 3.6.1

- Fixed misspelled parameter

May 2022 - version 3.6.0

- Added constructor with specified SPI interface
- Accepted Pull request for user defined chars

May 2021 - version 3.5.7

- Fixed issues with text occasionally remaining on edge of display for diagonal scroll effects

Mar 2021 - version 3.5.6

- Added TG_Combo, TG_Coord and TG_Zones examples
- Deleted Test_TG example
- Fixed ENA_* no longer working (compiler changes)
- Deleted revision history prior to v2.0.0

Dec 2020 - version 3.5.5

- Fixed erratic zone scrolling behavior in introduced with changes to 3.5.3
- Added README.md to examples folder

Oct 2020 - version 3.5.4

- Fixed typo in HelloWorld example

Oct 2020 - version 3.5.3

- Fixed behavior of SCROLL_UP, DOWN, UP_LEFT, UP_RIGHT, DOWN_LEFT, DOWN_RIGHT for inverted display

Aug 2020 - version 3.5.2

- Fixed ambiguous overloading setSpeed(uint8_t zone, uint16_t spd) and setSpeed(uint16_t spdIn, uint16_t spdOut)

Aug 2020 - version 3.5.1

- Fixed non-functional setIntensity()

Aug 2020 - version 3.5.0

- setSpeed() now allows setting independent IN and OUT speed
- Added getZone() method
- Added Animation_2Speed example
- Workaround for issue #56 (https://github.com/MajicDesigns/MD_Parola/issues/56) built into library
- Maintenance release for new (more picky) IDE compiler settings

Aug 2020 - version 3.4.0

- Updated parts of documentation
- Exposed getTextColumns() as public

Oct 2019 - version 3.3.0

- Reverted back to dynamic zone allocation removed in v2.6.6. Tested 22 zones seems ok. STATIC_ZONES defined value will immediately switch back to static zones.

Aug 2019 - version 3.2.0

- Changed to use 16 bit character code
- Checked all examples for clean compile with current version

Jun 2019 - version 3.1.1

- Use const char* parameter instead of char* parameter.
- Some compiler warnings fixed.
- Uninitialized variables fixed.

Dec 2018 - version 3.1.0

- Fixed issues caused by inter char spacing fix in v3.0.2.

Dec 2018 - version 3.0.2

- Fixed another compile error with ESP8266.
- Added Double_Scoreboard example.
- Stopped inter char spacing with zero length character

Jul 2018 - version 3.0.1

- Added getFont() method.
- Cleaned up double height examples relying on old USE_*_HW defines.

Jun 2018 - version 3.0.0

- Minor corrections to previous version examples and keyword.txt.
- Added help text on sprite animations and minor doc updates.
- Added Sprites_Simple example.
- Adapted for changes to the MD_MAX72XX library.

Apr 2018 - version 2.7.4

- Fixed bug with ESP8266 compilation.

Apr 2018 - version 2.7.3

- Reworked sprite effects to enable user sprites as more sustainable in long run.
- Removed all built in sprites from previous version.
- Added Sprites example.

Apr 2018 - version 2.7.2

- Fixed bug with last text column persisting for PA_SCAN_HORIZ and PA_SCAN_HORIZX effect.
- Added sprite based text effects

Mar 2018 - version 2.7.1

- Adjusted Scrolling_Menu example for changes to MD_Menu library.
- Added graphics methods to support text + graphics displays
- Added text & graphics example Test_TG

Dec 2017 - version 2.6.6

- Created MAX_ZONES constant to allow static zones array. Interim measure until resolution of the errors (?) caused when dynamically allocating the _Z array.
- Cleaned up most compiler warnings.
- Reworked Parola_Test example

Nov 2017 - version 2.6.5

- Fixed RANDOM effect locking issue
- Added Parola_Bluetooth example
- Added Double_Height_Russian example
- Added Scrolling_Menu example
- Added Scrolling_Vertical example
- Added SCAN_HORIZX/SCAN_VERTX text effects
- Fixed bug with WIPE, SCAN and GROW when using 1 module only
- Removed hard coded internal font buffer size
- Changed examples - replaced MD_KeySwitch with new MD_UISwitch library

Apr 2017 - version 2.6.4

- Added Parola_UFT-8_Display example for double multi-byte character handling
- Fixed bug: single blank column in SCROLL_LEFT with PA_LEFT
- Changed Scrolling example to parametrize more options
- Added RANDOM text effect

Feb 2017 - version 2.6.3

- Full review of double height functionality, mods as required
- Added Double_Height_Test example
- Cleaned up some example files

Jan 2017 - version 2.6.2

- Added shutdown() method to enable low power mode
- Corrected alignment offset problems in low level functions

Jan 2017 - version 2.6.1

- Added ESP8266 example
- Corrected keywords.txt file and main header file
- Cleaned up looping logic in Double_Height examples
- Corrected bug when double height PA_SCROLL_RIGHT

Dec 2016 - version 2.6

- Prefaced all Parola enumerated types with PA_ as some clash with other libraries
- Edited main library core routines to allow scrolling in double height mode
- Eliminated trailing char separator from displayed string
- Adjusted some animations to allow for changes to core utility functions
- Changed Double_Height_v2 example to allow for Generic and Parola modules
- Fixed font definitions for font based examples
- Added Arduino Library Print Class extension for easy printing

Nov 2016 - version 2.5

- Added ambulance example
- Updated branding to MD_ diamond
- Added README.md file

Jan 2016 - version 2.4

- Added dynamic zone example
- Added synchZoneStart() method to allow zones start times to be synchronized
- Added double height character example by Arek00
- Modified all examples to conditionally include <SPI.h>
- Added double height character example (v2) using Font file created by MD_MAX72xx font builder
- Added double height clock example
- Added HelloWorld example - simplest working code
- Added FADE animation
- Adjusted documentation structure
- Added preprocessor defines ENA_* for granular selection of animations (memory saving)

Aug 2015 - version 2.3

- Added set/getScrollSpacing() methods and associated Scrolling_Spacing example
- Added set/getZoneEffect with FLIP_LR and FLIP_UD, with associated Zone_Mirror example
- Added MESH animation
- Fixed minor bugs and documentation

April 2015 - version 2.2

- Added Scrolling_ML example
- Added Zone_Mesg example
- Overloaded displayClear() for single zone clear
- Fixed bug in SLICE effect when text was too long for display

February 2015 - version 2.1

- Fixed small animation problems with SLICE and SCAN_VERT
- Fixed PROGMEM error compiling with IDE version 1.5.7

March 2014 - version 2.0

- Mods to accommodate revised font handling in MD_MAX72xx library
  - Users can now provide a user defined font PROGMEM data table
  - User code can provide individual character override for equivalent font character
- Additional animations
  - SCAN_HORIZ, SCAN_VERT
  - GROW_UP, GROW_DOWN
  - SCROLL_UP_LEFT, SCROLL_UP_RIGHT, SCROLL_DOWN_LEFT, SCROLL_DOWN_RIGHT
- Implemented Zoned scrolling
  - Multiple independent zoned scrolling areas in one display.
  - Each zone has all character attributes (font, alignment, speed, pause, etc).
- textEffect_t and textAlign_t taken out of the class definition. Requires legacy code mods.
- Backward compatible with library version 1.x code.