embassy/examples/nrf/src/bin/channel.rs

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#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::unwrap;
use embassy_executor::executor::Spawner;
use embassy_executor::time::{Duration, Timer};
use embassy_nrf::gpio::{Level, Output, OutputDrive};
use embassy_nrf::Peripherals;
use embassy_util::blocking_mutex::raw::ThreadModeRawMutex;
use embassy_util::channel::mpmc::Channel;
2022-06-12 22:15:44 +02:00
use {defmt_rtt as _, panic_probe as _};
enum LedState {
On,
Off,
}
static CHANNEL: Channel<ThreadModeRawMutex, LedState, 1> = Channel::new();
#[embassy_executor::task]
async fn my_task() {
loop {
CHANNEL.send(LedState::On).await;
Timer::after(Duration::from_secs(1)).await;
CHANNEL.send(LedState::Off).await;
Timer::after(Duration::from_secs(1)).await;
}
}
#[embassy_executor::main]
async fn main(spawner: Spawner, p: Peripherals) {
let mut led = Output::new(p.P0_13, Level::Low, OutputDrive::Standard);
unwrap!(spawner.spawn(my_task()));
loop {
match CHANNEL.recv().await {
LedState::On => led.set_high(),
LedState::Off => led.set_low(),
}
}
}