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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

0.6.3 - 2024-09-16

Added

  • Support for PCA9554 and PCA9554A (#36).

0.6.2 - 2024-07-07

Fixed

  • Fixed non-totem-pole devices not having embedded_hal::{InputPin, OutputPin} implementations due to a superfluous trait bound (#35). This was a regression in 0.5.0.

0.6.1 - 2024-05-10

Added

  • Implement polarity and pull-up/down support for MCP23017 and MCP23S17 (#31).

0.6.0 - 2024-05-10

Added

  • Support for MCP23017 (I2C variant) and MCP23S17 (SPI variant) (#27).

Fixed

  • Fixed embedded-hal digital I/O trait implementations being unusable due to usage of an incompatible error type (#30).

Changed

  • BREAKING Pin methods now return a custom error type which wraps the bus error instead of returning the bus error directly (#30).

0.5.1 - 2024-07-07

Fixed

  • Fixed non-totem-pole devices not having embedded_hal::{InputPin, OutputPin} implementations due to a superfluous trait bound. This fix was backported from 0.6.2.

0.5.0 - 2024-02-19

Added

  • Support for PI4IOE5V6408 (#17).
  • Added support for enabling pull-up/down resistors for port expander input pins (#22).
  • Added public API to access the underlying port-expander of a pin (pin.access_port_driver()) and the register mask for the pin (pin.pin_mask()) (#23).

Changed

  • BREAKING Moved to embedded-hal 1.0 (#16).
  • BREAKING Replaced shared_bus::BusMutex with our own custom port_expander::PortMutex trait (#26). If you need support for custom mutex types, you now need to implement the latter one for your mutex.

0.4.1 - 2023-12-25

Added

  • Added support for TCA6408A (#12).
  • Added support for PCAL6408A and PCAL6416A (#13).

0.4.0 - 2023-08-13

Changed

  • BREAKING Upgraded to shared-bus 0.3.

0.3.1 - 2023-08-13

Added

  • Added support for MAX7321 (#10).

Changed

  • Upgraded to Rust Edition 2021.

0.3.0 - 2022-05-06

Added

  • Added support for PCF8575 (#1).
  • Added support for PCA9538.
  • Added into_output_high() for totem-pole output drivers. In contrast to into_output() this will immediately put the pin into a HIGH state, thus preventing a short glitch between setting direction and pin value (#3).
  • Added support for setting the polarity inversion of pins.

Changed

  • into_output() for totem-pole output drivers now puts the pin into a LOW state without a glitch. Previously, it would leave the pin in whatever state it was last in (= most often the HIGH state) (#3).

Fixed

  • Fixed read_multiple() and write_multiple() not ensuring that all passed pins actually belong to the same port-expander chip (#4).

0.2.1 - 2021-04-26

Added

  • Added the write_multiple() and read_multiple() functions to set/get multiple pin-states in a single bus transaction.

Changed

  • The internal PortDriver trait was redesigned to better fit its requirements.

0.2.0 - 2021-04-24

Changed

  • Pin::set_high(), Pin::set_low(), and Pin::toggle() now take &mut self.

0.1.0 - 2021-04-24

Initial Release, with support for PCA9536, PCA9555, PCF8574, and PCF8574A.