Skip to content

Instantly share code, notes, and snippets.

@noahbliss
Created November 22, 2023 18:24
Show Gist options
  • Save noahbliss/958e144251b5819d959ad9793cef5475 to your computer and use it in GitHub Desktop.
Save noahbliss/958e144251b5819d959ad9793cef5475 to your computer and use it in GitHub Desktop.
esp-hal-nostd.rs
#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]
use embassy_executor::Spawner;
use embassy_time::{Duration, Timer};
use embedded_hal_async::digital::Wait;
use esp_backtrace as _;
use hal::{
clock::ClockControl,
embassy::{self},
gpio::*,
peripherals::Peripherals,
prelude::*,
IO,
};
#[main]
async fn main(spawner: Spawner) -> ! {
esp_println::println!("Init!");
let peripherals = Peripherals::take();
let system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
{
let timer_group0 = hal::timer::TimerGroup::new(peripherals.TIMG0, &clocks);
embassy::init(&clocks, timer_group0.timer0);
}
let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
// GPIO 0 as input
let mut input = io.pins.gpio0.into_pull_up_input().degrade();
let mut output = io.pins.gpio2.into_push_pull_output().degrade();
output.set_high().unwrap();
// Async requires the GPIO interrupt to wake futures
hal::interrupt::enable(
hal::peripherals::Interrupt::GPIO,
hal::interrupt::Priority::Priority1,
)
.unwrap();
spawner.spawn(run(input)).ok();
loop {
esp_println::println!("nom");
Timer::after(Duration::from_millis(1000)).await;
}
}
#[embassy_executor::task]
async fn run(mut input: AnyPin<Input<PullUp>>) {
//mut input: AnyPin<Input<PullDown>>) {
if input.is_low().unwrap() {
esp_println::println!("init low");
} else {
esp_println::println!("init high");
}
loop {
input.wait_for_any_edge().await.unwrap();
if input.is_high().unwrap() {
esp_println::println!("hi hi high");
} else if input.is_low().unwrap() {
esp_println::println!("low low low")
} else {
esp_println::println!("something else")
}
//Timer::after(Duration::from_millis(100)).await;
}
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment