A Hardware Abstraction Layer (HAL) for embedded systems
This project is developed and maintained by the HAL team.
embedded-hal serves as a foundation for building an ecosystem of platform-agnostic drivers. (driver meaning library crates that let a target platform interface an external device like a digital sensor or a wireless transceiver).
The advantage of this system is that by writing the driver as a generic library on top of embedded-hal driver authors can support any number of target platforms (e.g. Cortex-M microcontrollers, AVR microcontrollers, embedded Linux, etc.).
The advantage for application developers is that by adopting embedded-hal they can unlock all these drivers for their platform.
For functionality that goes beyond what is provided by embedded-hal, users are encouraged to use the target platform directly. Abstractions of common functionality can be proposed to be included into embedded-hal as described in this guide, though.
See more about the design goals in this documentation section.
The main embedded-hal project is not tied to a specific execution model like blocking or non-blocking.
nb crate embedded-hal-bus Utilities for sharing SPI and I2C buses embedded-can Controller Area Network (CAN) traits embedded-io I/O traits (read, write, seek, etc.), blocking and nonblocking version. embedded-io-async I/O traits, async version embedded-io-adapters Adapters between the embedded-io and embedded-io-async traits and other IO traits (std, tokio, futures...)
Implementations and drivers
For a non-exhaustive list of embedded-hal implementations and driver crates check the awesome-embedded-rust list.
You may be able to find even more HAL implementation crates and driver crates by searching for the embedded-hal-impl, embedded-hal-driver and embedded-hal keywords on crates.io.
This crate is guaranteed to compile on stable Rust 1.81 and up. It might compile with older versions but that may change in any new patch release.
See here for details on how the MSRV may be upgraded.
Licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.
Contribution to this repository is organized under the terms of the Rust Code of Conduct, the maintainers of this repository, the HAL team, promise to intervene to uphold that code of conduct.
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