embassy/examples/nrf52840/src/bin/channel.rs
2023-01-09 22:30:02 +01:00

44 lines
1.1 KiB
Rust

#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use defmt::unwrap;
use embassy_executor::Spawner;
use embassy_nrf::gpio::{Level, Output, OutputDrive};
use embassy_sync::blocking_mutex::raw::ThreadModeRawMutex;
use embassy_sync::channel::Channel;
use embassy_time::{Duration, Timer};
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) {
let p = embassy_nrf::init(Default::default());
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(),
}
}
}