from machine import Pin, PWM
import time

buzzer = PWM(Pin(33))

E = 659
G = 784
C = 523
D = 587
F = 698
REST = 0

short = 0.3
long = 0.6

melody = [
    (E, short), (E, short), (E, long),
    (E, short), (E, short), (E, long),
    (E, short), (G, short), (C, short), (D, short), (E, long),

    (F, short), (F, short), (F, short), (F, short),
    (F, short), (E, short), (E, short), (E, short),
    (G, short), (G, short), (F, short), (D, short),
    (C, long)
]

def play_tone(freq, duration):
    if freq == REST:
        buzzer.duty_u16(0)
    else:
        buzzer.freq(freq)
        buzzer.duty_u16(30000)
    time.sleep(duration)
    buzzer.duty_u16(0)
    time.sleep(0.05)

for note, duration in melody:
    play_tone(note, duration)

buzzer.deinit()