use esp_idf_hal::delay::Ets;
use esp_idf_hal::gpio::*;
use esp_idf_hal::peripherals::Peripherals;
use std::thread;
use std::time::Duration;

fn main() {
    esp_idf_sys::link_patches(); // Required to initialize system

    println!("Hello world!");

    let peripherals = Peripherals::take().unwrap();
    let pins = peripherals.pins;

    let mut led = PinDriver::output(pins.gpio4).unwrap();
    let btn = PinDriver::input(pins.gpio2).unwrap();

    loop {
        if btn.is_high() {
            println!("Button pressed");
            led.set_high().unwrap();
        } else {
            led.set_low().unwrap();
        }

        thread::sleep(Duration::from_millis(500));
    }
}