import network
from machine import Pin, PWM
import time
import dht
import ujson
from umqtt.simple import MQTTClient

# MQTT Server Parameters
MQTT_CLIENT_ID = "micropython-weather-demo"
MQTT_BROKER    = "broker.mqttdashboard.com"
MQTT_USER      = ""
MQTT_PASSWORD  = ""
MQTT_TOPIC     = "wokwi-weather"

sensor = dht.DHT22(Pin(19))
servo_pin = 33  # Cambia este número al pin que estés usando
servo = PWM(Pin(servo_pin), freq=50)
umbral= 25
def set_servo_angle(angle):
    # Convertir el ángulo a un valor de duty cycle
    duty = 40 + int((angle / 180) * (115 - 40))
    servo.duty(duty)

print("Connecting to WiFi", end="")
sta_if = network.WLAN(network.STA_IF)
sta_if.active(True)
sta_if.connect('Wokwi-GUEST', '')
while not sta_if.isconnected():
  print(".", end="")
  time.sleep(0.1)
print(" Connected!")

print("Connecting to MQTT server... ", end="")
client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, user=MQTT_USER, password=MQTT_PASSWORD)
client.connect()

print("Connected!")

prev_weather = ""
while True:
    print("Measuring weather conditions... ", end="")
    sensor.measure() 
    temp=sensor.temperature()
    if temp < umbral:
        #  Mover el servo a 0°
        print("Moviendo a 0°")
        set_servo_angle(0)
        time.sleep(5)  # Espera de 1 segundo
    else:
        # Mover el servo a 180°
        print("Moviendo a 180°")
        set_servo_angle(180)
        time.sleep(5)  # Espera de 1 segundo

    message = ujson.dumps({
    "temp": sensor.temperature(),
    "humidity": sensor.humidity(),
    })
    if message != prev_weather:
        print("Updated!")
        print("Reporting to MQTT topic {}: {}".format(MQTT_TOPIC, message))
        client.publish(MQTT_TOPIC, message)
        prev_weather = message
    else:
        print("No change")
    time.sleep