// Create a program to generate audio tones using PWM for a simple buzzer. A buzzer has two terminals,
// one terminal hooks up to the PWM output and the other to ground. Implement functions to
// play different musical notes by generating corresponding PWM signals with appropriate frequencies.
// Wiring
// The buzzer second terminal (PWM input) is connected to gpio 0.
// The buzzer first terminal is connected to ground.
#![no_std]
#![no_main]
use esp_backtrace as _;
use esp_println::println;
use esp_hal::{clock::ClockControl, peripherals::Peripherals, prelude::*, Delay};
#[entry]
fn main() -> ! {
let peripherals = Peripherals::take();
let system = peripherals.SYSTEM.split();
let clocks = ClockControl::boot_defaults(system.clock_control).freeze();
let mut delay = Delay::new(&clocks);
println!("Hello world!");
loop {
println!("Loop...");
delay.delay_ms(500u32);
}
}