//#include <ESP8266WiFi.h>
#include <WiFi.h>
#include <PubSubClient.h>
#include "DHTesp.h"
//porta do sensor
const int DHT_PIN = 23;
//variável com o valor do sensor
DHTesp dhtSensor;
// credencias para acesso a rede e ao MQTT mosquito
// o nosso broker é o mosquito: broker.mqtt-dashboard.com
const char* ssid = "Wokwi-GUEST";
const char* password = "";
const char* mqtt_server = "test.mosquitto.org";
WiFiClient WOKWI_client;
PubSubClient client(WOKWI_client);
void setup_wifi() {
delay(10);
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.mode(WIFI_STA);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
Serial.println("IP address: ");
Serial.println(WiFi.localIP());
}
void reconnect() {
while (!client.connected()) {
Serial.print("Attempting MQTT connection...");
if (client.connect("WOKWI_client")) {
Serial.println("connected");
} else {
Serial.print("failed, rc=");
Serial.print(client.state());
Serial.println(" try again in 5 seconds");
delay(5000);
}
}
}
void setup() {
Serial.begin(115200);
setup_wifi();
client.setServer(mqtt_server, 1883);
//realizando o setup do dhtpsensor
dhtSensor.setup(DHT_PIN, DHTesp::DHT22);
}
void Conectado_Wifi(){
if (WiFi.status())
digitalWrite(2, HIGH);
else
digitalWrite(2, LOW);
}
void Conectado_Mosquito(){
if (client.connected())
digitalWrite(15, HIGH);
else
digitalWrite(15, LOW);
}
void envio_temp() {
//pegando a temperatura e humidade
TempAndHumidity data = dhtSensor.getTempAndHumidity();
//enviando a temperatura especificamente
client.publish("TOPICO_CALDEIRA_2",String(data.temperature).c_str());
//testes para printar condições atuais da temperatura
if(data.temperature<40){
Serial.println("ineficiências");
}else if(data.temperature <55){
Serial.println("ideal");
}else{
Serial.println("alarmante");
}
//escrevendo o valor da temperatura
Serial.println("Temp: " + String(data.temperature, 2) + "°C");
Serial.println("---");
delay(2000); //delay de 2 segundos
}
void loop() {
reconnect();
Conectado_Wifi();
Conectado_Mosquito();
envio_temp();
}