[](https://crates.io/crates/embedded-io-async)
[](https://crates.io/crates/embedded-io-async)
[](https://docs.rs/embedded-io-async)
# `embedded-io-async`
Async IO traits for embedded systems.
This crate contains asynchronous versions of the [`embedded-io`](https://crates.io/crates/embedded-io) traits and shares its scope and design goals.
This project is developed and maintained by the [HAL team](https://github.com/rust-embedded/wg#the-hal-team).
## Optional Cargo features
- **`std`**: Adds `From` impls to convert to/from `std::io` structs.
- **`alloc`**: Adds blanket impls for `Box`, adds `Write` impl to `Vec`.
- **`defmt`**: Derive `defmt::Format` from `defmt` 1.0 for enums and structs.
## Minimum Supported Rust Version (MSRV)
This crate is guaranteed to compile on stable Rust 1.75 and up. It *might*
compile with older versions but that may change in any new patch release.
See [here](../docs/msrv.md) for details on how the MSRV may be upgraded.
## License
Licensed under either of
- Apache License, Version 2.0 ([LICENSE-APACHE](LICENSE-APACHE) or
<http://www.apache.org/licenses/LICENSE-2.0>)
- MIT license ([LICENSE-MIT](LICENSE-MIT) or <http://opensource.org/licenses/MIT>)
at your option.
### Contribution
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.