from machine import Pin, PWM
from time import sleep
import dht

bocina = PWM(Pin(12), freq=440, duty=512)
sensor = dht.DHT22(Pin(4))

def sonido(frequency, duration):
    bocina.freq(frequency)
    bocina.duty(512)
    sleep(duration)
    bocina.duty(0)

while True:
    sensor.measure()
    
    temp = sensor.temperature() #almacena el valor de la tamperatura
    hum = sensor.humidity()  #almacena el valor de la humedad
    
    print('Humedad: %3.1f %%' %hum)

    if hum <= 40:
        sonido(440, 0)  
    else:
        print('Alerta, Humedad Alta')
        sonido(900, 0.7)
        sonido(450, 0.7)
        sonido(666, 0.7)