from gpiozero import Buzzer

from time import sleep

import RPi.GPIO as GPIO

# Set up PWM on the buzzer pin

buzzer_pin = 17

GPIO.setmode(GPIO.BCM)

GPIO.setup(buzzer_pin, GPIO.OUT)

buzzer = GPIO.PWM(buzzer_pin, 440)  # Initialize PWM on pin 17 with a default frequency

# Define the notes and their frequencies in Hz

notes = {

    'C': 261.63,

    'D': 293.66,

    'E': 329.63,

    'F': 349.23,

    'G': 392.00,

    'A': 440.00,

    'B': 493.88,

    'C_high': 523.25

}

# Define the melody of "Twinkle Twinkle Little Star" as (note, duration)

melody = [

    ('C', 0.5), ('C', 0.5), ('G', 0.5), ('G', 0.5), ('A', 0.5), ('A', 0.5), ('G', 1.0),

    ('F', 0.5), ('F', 0.5), ('E', 0.5), ('E', 0.5), ('D', 0.5), ('D', 0.5), ('C', 1.0),

    ('G', 0.5), ('G', 0.5), ('F', 0.5), ('F', 0.5), ('E', 0.5), ('E', 0.5), ('D', 1.0),

    ('G', 0.5), ('G', 0.5), ('F', 0.5), ('F', 0.5), ('E', 0.5), ('E', 0.5), ('D', 1.0),

    ('C', 0.5), ('C', 0.5), ('G', 0.5), ('G', 0.5), ('A', 0.5), ('A', 0.5), ('G', 1.0),

    ('F', 0.5), ('F', 0.5), ('E', 0.5), ('E', 0.5), ('D', 0.5), ('D', 0.5), ('C', 1.0)

]

# Function to play a note

def play_buzzer(note, duration):

    if note in notes:

        buzzer.ChangeFrequency(notes[note])  # Change the frequency to the note

        buzzer.start(50)  # Start the buzzer at 50% duty cycle (square wave)

        sleep(duration)  # Play the note for the specified duration

        buzzer.stop()  # Stop the buzzer after the note is played

        sleep(0.05)  # Short pause between notes

# Play the melody

try:

    for note, duration in melody:

        play_buzzer(note, duration)

finally:

    buzzer.stop()

    GPIO.cleanup()  # Clean up GPIO settings after playing