#![no_std]
#![no_main]
#![feature(type_alias_impl_trait)]

#[path = "../example_common.rs"]
mod example_common;
use defmt::*;
use embassy::executor::Spawner;
use embassy::time::{Duration, Timer};
use embassy_nrf::gpio::NoPin;
use embassy_nrf::pwm::{Prescaler, Pwm};
use embassy_nrf::Peripherals;

#[embassy::main]
async fn main(_spawner: Spawner, p: Peripherals) {
    let pwm = Pwm::new(p.PWM0, p.P0_13, NoPin, NoPin, NoPin);
    // set_period doesnt actually set what you give it, because it only has a
    // few options from the hardhware so be explicit instead
    // Div128 is slowest, 125khz still crazy fast for our eyes
    pwm.set_prescaler(Prescaler::Div128);

    info!("pwm initialized!");

    // default max_duty if not specified is 1000
    // so 0 would be fully off and 1000 or above would be fully on
    loop {
        info!("100%");
        pwm.set_duty(0, 1000);
        Timer::after(Duration::from_millis(5000)).await;

        info!("25%");
        pwm.set_duty(0, 250);
        Timer::after(Duration::from_millis(5000)).await;

        info!("10%");
        pwm.set_duty(0, 100);
        Timer::after(Duration::from_millis(5000)).await;

        info!("5%");
        pwm.set_duty(0, 50);
        Timer::after(Duration::from_millis(5000)).await;

        info!("0%");
        pwm.set_duty(0, 0);
        Timer::after(Duration::from_millis(5000)).await;
    }
}