Module avr_oxide::devices::button

source ·
Expand description

Simple abstraction of a button attached to a GPIO port.

§Usage

Create the button using one of the constructors provided by the avr_oxide::devices::UsesPin trait.

The AVR’s internal pullup can be enabled/disabled using the pullup method.

State can be queried using the is_pressed or state methods, or alternatively a closure can be provided as a callback to be called whenever the button’s state changes using the on_click method.


#[avr_oxide::main(chip="atmega4809")]
pub fn main() {
  let supervisor = avr_oxide::oxide::instance();

  let mut green_button = StaticWrap::new(OxideButton::using(Debouncer::with_pin(board::pin_a(2))));

  green_button.borrow().on_click(Box::new(move |_pinid, state|{
    match state {
      ButtonState::Released => {
        // Do something
      }
      ButtonState::Pressed => {
        // Do something
      }
      ButtonState::Unknown => {
        // Probably don't do anything
      }
    }
  }));

  // Tell the supervisor which devices to listen to
  supervisor.listen(green_button.borrow());

  // Now enter the event loop
  supervisor.run();
}

Structs§

  • Button
    Encapsulation of a Button attached to a standard GPIO pin. Generates Oxide events on button events (press/release.)

Enums§