import network
import time
from machine import Pin
import dht
import ujson
from simple import MQTTClient

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!")
time.sleep(3)


# MQTT Server Parameters
MQTT_CLIENT_ID = "wokwi-41"
MQTT_BROKER = "181.3.130.248"
MQTT_PORT = 1883
MQTT_USER      = "wokwi-41"
MQTT_PASSWORD  = "wokwi-41"
MQTT_TOPIC     = "v1/devices/me/telemetry"

print("Connecting to MQTT server... ", end="")
client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER, port=MQTT_PORT, user=MQTT_USER, password=MQTT_PASSWORD, keepalive=60)
client.connect(clean_session=False)
print("Connected!")


sensor = dht.DHT22(Pin(15))
while True:
  sensor.measure() 
  message = ujson.dumps({
    "temperatura": sensor.temperature(),
    "humedad": sensor.humidity(),
  })
  print("Publicando en topico {}. Mensaje: {}".format(MQTT_TOPIC, message))
  client.publish(MQTT_TOPIC, message)
  time.sleep(1)