Async Button

Async button handling crate for no_std environments. Built around embedded-hal 1.0 traits and embassy-time.

• Detect button presses without blocking execution of other tasks or unnecessary polling.
• Debouncing
• Detect single and multiple short presses
• Detect long presses
• Detect sequences of short and long presses or multiple long presses. Open an issue if this would be useful to you, or submit a PR!

Example

let pin = /* Input pin */;
let mut button = Button::new(pin, ButtonConfig::default());

// In a separate task:
loop {
    match button.update().await {
        ButtonEvent::ShortPress { count } => {/* Do something with short presses */},
        ButtonEvent::LongPress => {/* Do something with long press */},
    }
}

Features

• defmt: derives defmt::Format on public types (except Button).
• std: uses tokio instead of embassy-time. Mainly useful for tests.

License

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.