Create NTC_sensor

If the temperature is bigger that the condition turn on a led, but if the temperature is small the value turn off the led. And sent the new status if the status is changes

Note1: turno on the led(23ºc)  and turn off the led (21ºC) for the hysteresis
Note2: I use the "ventilador" state, because in the future I want to connect it to a fan, through i will activate whit a relay