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

MQTT_CLIENT_ID = "ESP32-DAVI"
MQTT_BROKER = "broker.hivemq.com"
MQTT_TOPIC = "senai/1devest"

sensor = dht.DHT22(Pin(15))

wifi = network.WLAN(network.STA_IF)
wifi.active(True)
print("Conectando ao Wifi...")
wifi.connect("Wokwi-GUEST")
while not wifi.isconnected():
    sleep(0.5)
print("Wifi Conectado!")

print("Conectando ao Broker MQTT")
client = MQTTClient(MQTT_CLIENT_ID, MQTT_BROKER)
client.connect()
print("MQTT Conectado")

while True:
    '''
    Lógica principal da Aplicação:
    1- Lê os dados do sensor
    2- Formata os dados em JSON
    3- Publica o JSON no Broker MQTT
    '''

    sensor.measure()
    payload = ujson.dumps({
         "temperatura":sensor.temperature(),
         "umidad":sensor.humidity()
    })
print("Publicando:", payload)
client.publish(MQTT_TOPIC, payload)
sleep(5)