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


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

                                              sensor = dht.DHT22(Pin(15))

                                                  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 = ""
                                                              if True:
                                                                  print("Measuring weather conditions... ", end = "")
                                                                    sensor.measure()
                                                                    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)