#![no_std]
#![no_main]

use esp_backtrace as _;
use esp_println::println;
use esp_hal::{clock::ClockControl, peripherals::Peripherals, prelude::*, IO};

#[entry]
fn main() -> ! {
    let peripherals = Peripherals::take();
    let system = peripherals.SYSTEM.split();

    println!("Hello world!");

    // Set GPIO7 as an output, and set its state high initially.
    let io = IO::new(peripherals.GPIO, peripherals.IO_MUX);
    let mut led = io.pins.gpio7.into_push_pull_output();
    let button = io.pins.gpio9.into_pull_up_input();

    // Check the button state and set the LED state accordingly.
    loop {
        if button.is_high().unwrap() {
            led.set_high().unwrap();
        } else {
            led.set_low().unwrap();
        }
    }
}