from machine import Pin, PWM
from utime import sleep
from dht import DHT22

sensor_t = DHT22(Pin(16))
led = PWM(Pin(14))
led.freq(1000)

while True:
    sensor_t.measure()
    
    temperatura = sensor_t.temperature()
    if temperatura < 20:
        led.duty_u16(10000)
    elif temperatura >= 20 and temperatura <= 30:
        led.duty_u16(30000)
    else:
        led.duty_u16(65535)