24. Changelog

24.1. Release 1.5.2 (unreleased)

  • Added Pibrella class (thanks to Carl Monk) (#773, #798)
  • Added TrafficpHat class (thanks to Ryan Walmsley) (#845, #846)
  • Allow Motor to pass pin_factory to its child OutputDevice objects (thanks to Yisrael Dov Lebow) (#792)
  • Small SPI exception fix (thanks to Maksim Levental) (#762)
  • Warn users when using default pin factory for Servos and Distance Sensors (thanks to Sofiia Kosovan and Daniele Procida at the EuroPython sprints) (#780, #781)
  • Add pulse_width property to Servo (suggested by Daniele Procida at the PyCon UK sprints) (#795, #797)
  • Various docs updates

24.2. Release 1.5.1 (2019-06-24)

* Added Raspberry Pi 4 data for pi_info() and pinout * Minor docs updates

24.3. Release 1.5.0 (2019-02-12)

  • Introduced pin event timing to increase accuracy of certain devices such as the HC-SR04 DistanceSensor. (#664, #665)
  • Further improvements to DistanceSensor (ignoring missed edges). (#719)
  • Allow source to take a device object as well as values or other values. See Source/Values. (#640)
  • Added internal device classes LoadAverage and DiskUsage (thanks to Jeevan M R for the latter). (#532, #714)
  • Added support for colorzero with RGBLED (this adds a new dependency). (#655)
  • Added TonalBuzzer with Tone API for specifying frequencies raw or via MIDI or musical notes. (#681, #717)
  • Added PiHutXmasTree. (#502)
  • Added PumpkinPi and JamHat (thanks to Claire Pollard). (#680, #681, #717)
  • Ensured gpiozero can be imported without a valid pin factory set. (#591, #713)
  • Reduced import time by not computing default pin factory at the point of import. (#675, #722)
  • Added support for various pin numbering mechanisms. (#470)
  • Motor instances now use DigitalOutputDevice for non-PWM pins.
  • Allow non-PWM use of Robot. (#481)
  • Added optional enable init param to Motor. (#366)
  • Added --xyz option to pinout command line tool to open pinout.xyz in a web browser. (#604)
  • Added 3B+, 3A+ and CM3+ to Pi model data. (#627, #704)
  • Minor improvements to Energenie, thanks to Steve Amor. (#629, #634)
  • Allow SmoothedInputDevice, LightSensor and MotionSensor to have pull-up configured. (#652)
  • Allow input devices to be pulled up or down externally, thanks to Philippe Muller. (#593, #658)
  • Minor changes to support Python 3.7, thanks to Russel Winder and Rick Ansell. (#666, #668, #669, #671, #673)
  • Added zip_values() source tool.
  • Correct row/col numbering logic in PinInfo. (#674)
  • Many additional tests, and other improvements to the test suite.
  • Many documentation corrections, additions and clarifications.
  • Automatic documentation class hierarchy diagram generation.
  • Automatic copyright attribution in source files.

24.4. Release 1.4.1 (2018-02-20)

This release is mostly bug-fixes, but a few enhancements have made it in too:

24.5. Release 1.4.0 (2017-07-26)

  • Pin factory is now configurable from device constructors as well as command line. NOTE: this is a backwards incompatible change for manual pin construction but it’s hoped this is (currently) a sufficiently rare use case that this won’t affect too many people and the benefits of the new system warrant such a change, i.e. the ability to use remote pin factories with HAT classes that don’t accept pin assignations (#279)
  • Major work on SPI, primarily to support remote hardware SPI (#421, #459, #465, #468, #575)
  • Pin reservation now works properly between GPIO and SPI devices (#459, #468)
  • Lots of work on the documentation: source/values chapter, better charts, more recipes, remote GPIO configuration, mock pins, better PDF output (#484, #469, #523, #520, #434, #565, #576)
  • Support for StatusZero and StatusBoard HATs (#558)
  • Added pinout command line tool to provide a simple reference to the GPIO layout and information about the associated Pi (#497, #504) thanks to Stewart Adcock for the initial work
  • pi_info() made more lenient for new (unknown) Pi models (#529)
  • Fixed a variety of packaging issues (#535, #518, #519)
  • Improved text in factory fallback warnings (#572)

24.6. Release 1.3.2 (2017-03-03)

  • Added new Pi models to stop pi_info() breaking
  • Fix issue with pi_info() breaking on unknown Pi models

24.7. Release 1.3.1 (2016-08-31 … later)

  • Fixed hardware SPI support which Dave broke in 1.3.0. Sorry!
  • Some minor docs changes

24.8. Release 1.3.0 (2016-08-31)

  • Added ButtonBoard for reading multiple buttons in a single class (#340)
  • Added Servo and AngularServo classes for controlling simple servo motors (#248)
  • Lots of work on supporting easier use of internal and third-party pin implementations (#359)
  • Robot now has a proper value attribute (#305)
  • Added CPUTemperature as another demo of “internal” devices (#294)
  • A temporary work-around for an issue with DistanceSensor was included but a full fix is in the works (#385)
  • More work on the documentation (#320, #295, #289, etc.)

Not quite as much as we’d hoped to get done this time, but we’re rushing to make a Raspbian freeze. As always, thanks to the community - your suggestions and PRs have been brilliant and even if we don’t take stuff exactly as is, it’s always great to see your ideas. Onto 1.4!

24.9. Release 1.2.0 (2016-04-10)

  • Added Energenie class for controlling Energenie plugs (#69)
  • Added LineSensor class for single line-sensors (#109)
  • Added DistanceSensor class for HC-SR04 ultra-sonic sensors (#114)
  • Added SnowPi class for the Ryanteck Snow-pi board (#130)
  • Added when_held (and related properties) to Button (#115)
  • Fixed issues with installing GPIO Zero for python 3 on Raspbian Wheezy releases (#140)
  • Added support for lots of ADC chips (MCP3xxx family) (#162) - many thanks to pcopa and lurch!
  • Added support for pigpiod as a pin implementation with PiGPIOPin (#180)
  • Many refinements to the base classes mean more consistency in composite devices and several bugs squashed (#164, #175, #182, #189, #193, #229)
  • GPIO Zero is now aware of what sort of Pi it’s running on via pi_info() and has a fairly extensive database of Pi information which it uses to determine when users request impossible things (like pull-down on a pin with a physical pull-up resistor) (#222)
  • The source/values system was enhanced to ensure normal usage doesn’t stress the CPU and lots of utilities were added (#181, #251)

And I’ll just add a note of thanks to the many people in the community who contributed to this release: we’ve had some great PRs, suggestions, and bug reports in this version. Of particular note:

  • Schelto van Doorn was instrumental in adding support for numerous ADC chips
  • Alex Eames generously donated a RasPiO Analog board which was extremely useful in developing the software SPI interface (and testing the ADC support)
  • Andrew Scheller squashed several dozen bugs (usually a day or so after Dave had introduced them ;)

As always, many thanks to the whole community - we look forward to hearing from you more in 1.3!

24.10. Release 1.1.0 (2016-02-08)

  • Documentation converted to reST and expanded to include generic classes and several more recipes (#80, #82, #101, #119, #135, #168)
  • New CamJamKitRobot class with the pre-defined motor pins for the new CamJam EduKit
  • New LEDBarGraph class (many thanks to Martin O’Hanlon!) (#126, #176)
  • New Pin implementation abstracts out the concept of a GPIO pin paving the way for alternate library support and IO extenders in future (#141)
  • New LEDBoard.blink() method which works properly even when background is set to False (#94, #161)
  • New RGBLED.blink() method which implements (rudimentary) color fading too! (#135, #174)
  • New initial_value attribute on OutputDevice ensures consistent behaviour on construction (#118)
  • New active_high attribute on PWMOutputDevice and RGBLED allows use of common anode devices (#143, #154)
  • Loads of new ADC chips supported (many thanks to GitHub user pcopa!) (#150)

24.11. Release 1.0.0 (2015-11-16)

24.12. Release 0.9.0 (2015-10-25)

Fourth public beta

  • Added source and values properties to all relevant classes (#76)
  • Fix names of parameters in Motor constructor (#79)
  • Added wrappers for LED groups on add-on boards (#81)

24.13. Release 0.8.0 (2015-10-16)

Third public beta

24.14. Release 0.7.0 (2015-10-09)

Second public beta

24.15. Release 0.6.0 (2015-09-28)

First public beta

24.16. Release 0.5.0 (2015-09-24)

24.17. Release 0.4.0 (2015-09-23)

24.18. Release 0.3.0 (2015-09-22)

24.19. Release 0.2.0 (2015-09-21)

Initial release