from machine import Pin, I2C
from utime import sleep, sleep_ms
import network, time
import ujson
from umqtt.simple import MQTTClient

servo PWM (Pin(14)), Frecuencia(50)

MQTT_CLIENT_ID = "clientId-A65cW2yudertm314" 
MQTT_BROKER    = "broker.hivemq.com"
MQTT_USER      = "" 
MQTT_PASSWORD  = ""
MQTT_TOPIC_SUB ="contro/apertura"

#ffuncion servomotor
def map_servo(x): 
    return int ((x-0) * (125-25)/ (180-0))


#conexion a wifi
def conectaWifi (red, password):
      global miRed
      miRed = network.WLAN(network.STA_IF)     
      if not miRed.isconnected():              #Si no está conectado…
          miRed.active(True)                   #activa la interface
          miRed.connect(red, password)         #Intenta conectar con la red
          print('Conectando a la red', red +"…")
          timeout = time.time ()
          while not miRed.isconnected():           #Mientras no se conecte..
              if (time.ticks_diff (time.time (), timeout) > 10):
                  return False
      return True


#conexion a la plataforma 
if conectaWifi ("Wokwi-GUEST", ""):
    print ("Conexión exitosa!")
    print('Datos de la red (IP/netmask/gw/DNS):', miRed.ifconfig())
           
   # np[0]=(0,255,0)
    #np.write()

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

    #np[0]=(0,0,255)
    #np.write()

    def sub_cb(topic, msg):   
        dato=msg.decode()
        #dato=ujson.loads(msg.decode())        
        print(f'Recibido:{dato}')

        if dato == "Abrir":
            m = map:servo(180)
            servo.duty(m)

        elif  dato == "cerrar":
            m = map:servo(|0)
            servo.duty(m) 

        elif  dato == "Entreabrir":
            m = map:servo(90)
            servo.duty(m) 
        


     while True:
        client.set_callback(sub_cb)        
        client.subscribe(MQTT_TOPIC_SUB)
        print ("esperando")        
        client.wait_msg()
        time.sleep(3)
        #m=map_servo(45)
        #servo.duty(m)
       # print(m)
        sleep(1)
       

      

else:
    print("Imposibe conectar")
    miRed.active (false)