embassy/examples/stm32l4/src/bin/button_exti.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::*;
use embassy_executor::Spawner;
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use embassy_stm32::exti::ExtiInput;
use embassy_stm32::gpio::{Input, Pull};
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use {defmt_rtt as _, panic_probe as _};
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#[embassy_executor::main]
async fn main(_spawner: Spawner) {
let p = embassy_stm32::init(Default::default());
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info!("Hello World!");
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let button = Input::new(p.PC13, Pull::Up);
let mut button = ExtiInput::new(button, p.EXTI13);
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info!("Press the USER button...");
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loop {
button.wait_for_falling_edge().await;
info!("Pressed!");
button.wait_for_rising_edge().await;
info!("Released!");
}
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}