print("Hello, ESP32!")
from machine import Pin, PWM
import time
buzzer = PWM(Pin(2), freq=440, duty=512)
def SoundBuz(freq, sleep):
buzzer.freq(freq)
buzzer.duty(512)
time.sleep(sleep)
while True:
SoundBuz(440, 0.5)
SoundBuz(880, 0.5)