Implement full SSD1306 OLED display support: - Splash screen on boot (1.5s) with project name, version, board - Dashboard showing radio state, config, counters, RSSI/SNR - RSSI history sparkline (64-sample ring buffer, 2px-wide bars) - DisplayOn/DisplayOff host commands routed via dedicated channel - Pure render functions against generic DrawTarget (no hardware coupling) - Display on/off control bypasses radio task entirely Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
87 lines
3.4 KiB
Markdown
87 lines
3.4 KiB
Markdown
# `embedded-hal`
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> A Hardware Abstraction Layer (HAL) for embedded systems
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This project is developed and maintained by the [HAL team][team].
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## [API reference]
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[API reference]: https://docs.rs/embedded-hal
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## How-to: add a new trait
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This is the suggested approach to adding a new trait to `embedded-hal`
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### Discussion
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Ideally, before proposing a new trait, or set of traits, you should create an issue where the use
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cases and requirements of the trait(s) are discussed.
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These issues will be labeled as `discussion`s in the issue tracker.
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### Proposing a trait
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Once there's consensus on the requirements of the trait(s) a new issue, or a PR, with a proposal
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should be opened. The proposal should include the actual trait definitions as well as a link to the
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issue with previous discussion, if there was one.
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If the proposal includes more than one alternative then there should be further discussion to try to
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single out the best alternative.
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These issues / PRs will be labeled as `proposal`s in the issue tracker.
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### Testing period
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If there are no objections to the proposal the new trait(s) will land behind the "unproven" Cargo
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feature and an issue about the new trait(s) will be created. If the proposal includes several
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alternatives and a single one couldn't be chosen as the best then each alternative will land behind
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a different Cargo feature, e.g. "alt1" or "alt2".
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The traits will undergo a testing period before they move into the set of proven traits. During
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this period users are encouraged to try to implement the unproven traits for their platforms and to
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build drivers on top of them. Problems implementing the trait(s) as well as successful
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implementations should be reported on the corresponding issue.
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To leave the unproven state at least *two* implementations of the trait(s) for different platforms
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(ideally, the two platforms should be from different vendors) and *one* generic driver built on top
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of the trait(s), or alternatively one demo program that exercises the trait (via generic function /
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trait object), *should* be demonstrated. If, instead, reports indicate that the proposed trait(s)
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can't be implemented for a certain platform then the trait(s) will be removed and we'll go back to
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the drawing board.
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Issues used to track unproven APIs will be labeled as `unproven-api`s in the issue tracker and they
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may also include the labels `needs-impl` and `needs-driver` to signal what's required for them to
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move to the set of proven traits.
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## Implementations and drivers
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For a list of `embedded-hal` implementations and driver crates check the [awesome-embedded-rust]
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list.
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[awesome-embedded-rust]: https://github.com/rust-embedded/awesome-embedded-rust#driver-crates
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## License
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Licensed under either of
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- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
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http://www.apache.org/licenses/LICENSE-2.0)
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- MIT license ([LICENSE-MIT](LICENSE-MIT) or http://opensource.org/licenses/MIT)
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at your option.
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### Contribution
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in the work by you, as defined in the Apache-2.0 license, shall be
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dual licensed as above, without any additional terms or conditions.
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## Code of Conduct
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Contribution to this crate is organized under the terms of the [Rust Code of
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Conduct][CoC], the maintainer of this crate, the [HAL team][team], promises
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to intervene to uphold that code of conduct.
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[CoC]: CODE_OF_CONDUCT.md
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[team]: https://github.com/rust-embedded/wg#the-hal-team
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