#![no_std]
#![no_main]

use esp_backtrace as _;
use esp_hal::{clock::CpuClock, delay::Delay, gpio::IO, main};

#[main]
fn main() -> ! {
    let config = esp_hal::Config::default().with_cpu_clock(CpuClock::max());
    let p = esp_hal::init(config);

    let io = IO::new(p.GPIO, p.IO_MUX);
    let mut led = io.pins.gpio4.into_push_pull_output();

    let delay = Delay::new();

    loop {
        led.toggle();
        delay.delay_millis(500);
    }
}