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CHANGELOG.md

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Changelog

This project follows semantic versioning.

Possible log types:

  • [add] for new features.
  • [chg] for changes in existing functionality.
  • [dep] for once-stable features removed in upcoming releases.
  • [rem] for deprecated features removed in this release.
  • [fix] for any bug fixes.
  • [sec] to invite users to upgrade in case of vulnerabilities.

v1.3.1 (2023-03-25)

  • [fix] Check invalid cursor position only when auto_linebreaks enabled (#93, #109)
  • [rem] Drop support for Python 3.3
  • [dep] This is the last release with official Python 2 and 3.4/3.5/3.6 support

v1.3.0 (2020-05-03)

This release adds a new charmap (thanks @kroesi) and fixes an initialization bug when using the pigpio backend (thanks @makslevental).

  • [add] Add support for ST7066 0B charmap (#95)
  • [fix] pigpio: Fix initialization without pin_contrast (#97)
  • [dep] This is the last release with official Python 3.3 support

v1.2.2 (2019-02-16)

  • [fix] Fix packaging bug that would result in the error message ImportError: cannot import name 'codecs' (#92)

v1.2.1 (2019-02-14)

Older LCDs (or LCDs that are based off the HD44780) aren't all made equal. It appears that some don't run at the reference clock, and as such, they're in a busy state far more often than newer or better ones; this leads to missed sends.

This release contains a new compatibility mode that increases wait times during writes. This should fix issues with occasionally garbled display contents. To enable it, pass compat_mode=True to the CharLCD constructor.

Thanks @lcheng1 for the fix and @albedozero for testing it!

  • [fix] Add compatibility mode (#91, #70)

v1.2.0 (2018-11-27)

This release adds support for the pure-python smbus2 library as an automatic fallback for smbus (thanks @joscha) and fixes an issue with the testsuite (thanks @bazooka07). Last but not least, the rplcd-tests script should now be included as a console script when packaging RPLCD.

  • [add] Support smbus2 as drop-in replacement for I2C access (#90)
  • [fix] Fix missing global modifier in tests (#88)
  • [chg] Bundle test script when packaging (#82)

v1.1.0 (2018-04-07)

This release primarily includes the pigpio backend (thanks @sphh!) and a few small improvements. Among other things, you can now use the I²C backend without having the RPi.GPIO library installed!

  • [add] Add pigpio backend (#77)
  • [chg] Limit GPIO cleanup to active pins (#72)
  • [chg] Add better help regarding missing numbering_mode (#80)
  • [chg] Late-import of GPIO backend in compatibility wrapper (#78)

v1.0.0 (2017-07-30)

This is the first release that can be considered stable. It involves some API changes, so you might need to adapt your scripts (mainly because some default arguments to CharLCD were removed).

If you notice any documentation that hasn't been updated yet to the newer API, please let us know!

  • [add] Support for MCP23008 and MCP23017 I²C port expanders (#43, #59)
  • [add] Add RPLCD.__version__ attribute
  • [fix] Fix bug in auto linebreak algorithm (#53)
  • [fix] Fix bugs in show_charmap script (#52)
  • [fix] Fix error in A02 character map
  • [chg] Remove default args for gpio.CharLCD, pins and numbering mode always need to be specified explicitly from now on (#60)
  • [chg] Remove default for i2c.CharLCD i2c_expander parameter, always needs to be specified explicitly from now on
  • [chg] Remove all enums (Alignment, CursorMode, ShiftMode, BacklightMode), replace them with string based API (#67)
  • [chg] Rewrite test scripts, expose them all through a single entry point script: lcdtest.py (#58, #59)

v0.9.0 (2017-05-09)

This version can be considered the release candidate for the 1.0 release.

  • [add] Support for PCF8574 I²C port expander (#20)
  • [add] Implement proper automatic encoding of unicode strings, add encoding tables for A00 and A02 character maps (#40)
  • [add] Implement convenience functions for CR/LF (#45)
  • [add] Add documentation (#37)
  • [dep] Deprecate context managers (#18)
  • [rem] Drop support for Python 3.2

v0.4.0 (2016-09-12)

  • [fix] Fix problem when auto-linebreaks clash with manual linebreaks (#14)
  • [fix] Fix wiring pin for GND (#25)
  • [add] Add option to disable auto linebreaks (#14)
  • [add] Add backlight GPIO control (#21)

v0.3.0 (2014-07-03)

  • [add] Implemented support for custom characters (#4)
  • [fix] Fixed a bug that caused offsets on 16x4 displays (#16)

v0.2.0 (2014-04-20)

  • [add] Removed all external dependencies
  • [add] New show_charmap.py helper script

v0.1.3 (2013-06-26)

  • [fix] Bugfix (#13)

v0.1.2 (2013-06-17)

  • [add] Added character caching
  • [add] Added support for 16x2 LCD
  • [fix] Bugfixes

v0.1.1 (2013-05-12)

  • Initial release