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#383 in Hardware support

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Firmata client library in Rust

Control your Firmata devices from Rust!

The library comes with a Board struct, which you can initialize with any object that implements std:io::{Read, Write} and Debug for formatting purposes. This avoids being locked in to a specific interface library. I highly recommend serialport for your USB connections (used in examples), but feel free to use serial or any other.

The different methods of the Firmata trait that return results also have backoff-able counterparts in the RetryFirmata trait that utilizes a ExponentialBackoff strategy powered by the backoff crate. This may be useful as your Rust program may run "too fast" for your Firmata device to keep up.

The crate has been set up to utilize tracing, which helps in finding where your messages went! If you set the environment variable CARGO_LOG=DEBUG you can capture the most noise.


There are quite a couple of examples to try with your Firmata device! You can run each of them like this:

cargo run --example blink

Where blink is the example's filename.

If you want the "full" output you can use:

RUST_LOG=DEBUG cargo run --example blink

Installing Firmata on a device

Chances are you have an Arduino or other Firmata device lying around since you're here :). You can go to your favorite Arduino IDE of choice and load the regular "StandardFirmata" onto your device and start tinkering!

Finding the right port

You might need to set the USB port to the one that is in use on your machine. Find the right port_name in the list after running:

cargo run --example available


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.


This library is largely based on the earlier work by Adrian Zankich over at https://github.com/zankich/rust-firmata to whom should go out many thanks!


~35K SLoC