from machine import Pin, ADC
from utime import sleep, sleep_ms
from dht import DHT22
import network, time
import ujson
from umqtt.simple import MQTTClient

MQTT_CLIENT_ID = "windows prueba" 
MQTT_BROKER    = "broker.hivemq.com"
MQTT_TOPIC     = "sensor/tomate"

sen_temp = DHT22(Pin(25))

sensor = ADC(Pin(12))
sensor.atten(ADC.ATTN_11DB)
sensor.width(ADC.WIDTH_10BIT)

sensor1 = ADC(Pin(26))
sensor1.atten(ADC.ATTN_11DB)
sensor1.width(ADC.WIDTH_10BIT)


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


if conectaWifi ("Wokwi-GUEST", ""):

    print ("Conexión exitosa!")
    print('Datos de la red (IP/netmask/gw/DNS):', miRed.ifconfig())


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

    while True:
        valor=sensor.read()
        conversion = round (valor * 1000 / 4096, 2)

        print("la humedad del suelo es=", conversion)
        
        """
        lectura1 = float(sensor1.read())
        conversion1 = round (lectura1 * 1000 / 4096, 2)
        print("lectura 2: ", conversion1)
        """
        sen_temp.measure()
        tem = sen_temp.temperature()
        hum = sen_temp.humidity()
        print("T: {:.1f} °C, H: {:.1f}%".format(tem, hum))
        
        message = ujson.dumps({
            "Humedad":hum,
            "Temperatura":tem
            })

        #print("Reportando a  MQTT topic {}: {}".format(MQTT_TOPIC, message)) 
        client.publish(MQTT_TOPIC, message)


        #print(message)
        sleep_ms(2000)
else:
     print ("Imposible conectar")
     miRed.active (False)