embassy/examples/stm32l0/src/bin/button.rs

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

use defmt::*;
use embassy_executor::Spawner;
use embassy_stm32::gpio::{Input, Level, Output, Pull, Speed};
use {defmt_rtt as _, panic_probe as _};

#[embassy_executor::main]
async fn main(_spawner: Spawner) {
    let p = embassy_stm32::init(Default::default());
    info!("Hello World!");

    let button = Input::new(p.PB2, Pull::Up);
    let mut led1 = Output::new(p.PA5, Level::High, Speed::Low);
    let mut led2 = Output::new(p.PB5, Level::High, Speed::Low);

    loop {
        if button.is_high() {
            info!("high");
            led1.set_high();
            led2.set_low();
        } else {
            info!("low");
            led1.set_low();
            led2.set_high();
        }
    }
}