from machine import Pin, I2C
from utime import sleep
from dht import DHT22
temp = Pin(5, Pin.OUT)
heat_warning = Pin(4, Pin.OUT)
sensor = DHT22(temp)
while True:
  sensor.measure()
  temperature = sensor.temperature()
  print(temperature)
  if temperature>20:
    heat_warning.on()
    print( 'HEAT ALERT!!!!')
  else:
    print('weather is good')
  sleep(1)