from machine import Pin, PWM
from utime import sleep

print("Play Buzzer ESP32!")
#frekuensi untuk tone 440 494 523 587 659 698 784

#ledpin = Pin(2, Pin.OUT)
buzzerpin=Pin(15, Pin.OUT)
buzzer = PWM(buzzerpin)

while True:
    buzzer.freq(440)
    buzzer.duty(512)
    sleep(0.5)
    buzzer.duty(0)
    sleep(0.5)