# Change Log
All notable changes to this project will be documented in this file.
The format is based on [Keep a Changelog](http://keepachangelog.com/)
and this project adheres to [Semantic Versioning](http://semver.org/).
## [Unreleased]
### Added
### Changed
## [v0.2.4] - 2020-06-17
### Changed
- Fix for `dyn` traits in fmt.rs
- Remove `#![deny(warnings)]`, now imposed y CI
- Updates stm32f30x from 0.6.0 to 0.8.0
- Fix the input pin v2->v1 compatibility shim constructor, where `OldInputPin::new`
was incorrectly implemented for `v1::OutputPin` values.
## [v0.2.3] - 2019-05-09
### Added
- A new version of the digital `OutputPin`, `StatefulOutputPin`, `ToggleableOutputPin`
and `InputPin` traits has been added under `digital::v2`. These traits are now
fallible and their methods now return a `Result` type as setting an output pin
and reading an input pin could potentially fail.
See [here](https://github.com/rust-embedded/embedded-hal/issues/95) for more info.
- Compatibility shims between `digital::v1` and `digital::v2` traits allowing v1 traits
to be implicitly promoted to v2, and for v2 traits to be explicitly cast to v1 wrappers.
### Changed
- The current versions of the `OutputPin`, `StatefulOutputPin`, `ToggleableOutputPin`
and `InputPin` traits have been marked as deprecated. Please use the new versions
included in `digital::v2`.
See [here](https://github.com/rust-embedded/embedded-hal/issues/95) for more info.
## [v0.2.2] - 2018-11-03
### Added
- Added the Rust Code of Conduct to this repository
- The first ADC-related trait. This is a simple trait for one-shot conversions.
- Iterator-based blocking write and write+read traits have been added to I2C and SPI.
- New helper constants for SPI modes.
- A new trait for a cancellable countdown.
- New traits for watchdog timer management, including startup, feeding, and stopping.
### Changed
- Updated docs to clarify I2C address bit widths and expectations.
## [v0.2.1] - 2018-05-14
### Changed
- Auto-generated documentation (docs.rs) now includes the unproven traits.
## [v0.2.0] - 2018-05-12
### Added
- A `ToggeableOutputPin` trait has been added. This trait contains a single method: `toggle` that
can be used to toggle the state of a push-pull pin.
### Changed
- [breaking-change] The signature of `CountDown.wait` changed; it now returns `nb::Result<(),
Void>`. Where [`Void`] is the stable alternative to the never type, `!`, provided by the stable
[`void`] crate. Implementations of the `CountDown` trait will have to be updated to use the new
signature. With this change this crate compiles on the stable and beta channels.
[`Void`]: https://docs.rs/void/1.0.2/void/enum.Void.html
[`void`]: https://crates.io/crates/void
- [breaking-change] the `OutputPin.is_{low,high}` methods have been moved into its own trait
`StatefulOutputPin` and renamed to `is_set_{low,high}`.
- It has been clarified in the documentation that `OutputPin` must be implemented for push-pull
output pins (and e.g. not for open drain output pins).
## [v0.1.3] - 2018-05-14
### Changed
- Re-export most / unchanged traits from embedded-hal v0.2.x to allow inter-operation between HAL
implementations and drivers that are using different minor versions.
## [v0.1.2] - 2018-02-14
### Added
- Unproven `blocking::serial::*` traits
## [v0.1.1] - 2018-02-06
### Added
- Unproven `digital::InputPin` trait
## v0.1.0 - 2018-01-16
Initial release
[Unreleased]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.4...HEAD
[v0.2.4]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.3...v0.2.4
[v0.2.3]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.2...v0.2.3
[v0.2.2]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.1...v0.2.2
[v0.2.1]: https://github.com/rust-embedded/embedded-hal/compare/v0.2.0...v0.2.1
[v0.2.0]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.2...v0.2.0
[v0.1.2]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.1...v0.1.2
[v0.1.1]: https://github.com/rust-embedded/embedded-hal/compare/v0.1.0...v0.1.1