ESP8266 Web + mq

/*********
  Rui Santos
  Complete project details at http://randomnerdtutorials.com
*********/

// Including the ESP8266 WiFi library
#include <ESP8266WiFi.h>
#include "DHT.h"
#include <PubSubClient.h>
// Uncomment one of the lines below for whatever DHT sensor type you're using!
//#define DHTTYPE DHT11   // DHT 11
//#define DHTTYPE DHT21   // DHT 21 (AM2301)
#define DHTTYPE DHT22   // DHT 22  (AM2302), AM2321
#define mqtt_server "192.168.1.64"
#define mqtt_user "homeassistant"
#define mqtt_password "welcome"

#define humidity_topic "sensor/humidity_bedroom"
#define temperature_topic "sensor/temperature_bedroom"


// Replace with your network details
const char* ssid = "thessid";
const char* password = "thepassword";
const int sensor_pin = A0;
// Web Server on port 80
WiFiServer server(80);
WiFiClient espClient;
PubSubClient client(espClient);
// DHT Sensor
const int DHTPin = 5;
const int MoistPin = 4;
const int ledPin = 13;
// Initialize DHT sensor.
DHT dht(DHTPin, DHTTYPE);
bool isconnected=false;
// Temporary variables
static char celsiusTemp[7];
static char fahrenheitTemp[7];
static char humidityTemp[7];
float moisture_reading;
float moisture_percentage;
// only runs once on boot



void setup() {
  Serial.setDebugOutput(true);
  // Initializing serial port for debugging purposes
  Serial.begin(115200);
  delay(10);

  dht.begin();

  // Connecting to WiFi network
  Serial.println();
//Wifi.disconnect();

 // WiFi.disconnect(true);

// hotspot scan

//Serial.printf("Wi-Fi mode set to WIFI_STA %s\n", WiFi.mode(WIFI_STA) ? "" : "Failed!");

//scan_hotspot() ;

  delay(1);
     WiFi.begin(ssid, password);


    Serial.print("Attempting to connect to WIFI network, SSID: ");
    Serial.println(ssid);
    Serial.println("");
    Serial.print("Password: ");
     Serial.println(password);

 if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    // don't continue:
    while (true);
  }
  pinMode(ledPin, OUTPUT);
  pinMode(MoistPin, OUTPUT);

 while (WiFi.status() != WL_CONNECTED) {
 //while (WiFi.waitForConnectResult() != WL_CONNECTED) {
   //while (WiFi.localIP().toString() == "0.0.0.0") {
   //delay(250);


   //   digitalWrite(ledPin, HIGH);
   //   delay(250);
   //   digitalWrite(ledPin, LOW);
    Serial.print(WiFi.localIP().toString());

    Serial.println(".");
    Serial.println(WiFi.status());
    delay(500);
  }
  Serial.println("");
  Serial.println("WiFi connected");

  // Starting the web server
  server.begin();
  Serial.println("Web server running. Waiting for the ESP IP...");
  delay(10000);

  // Printing the ESP IP address
  Serial.println(WiFi.localIP());
   Serial.println("Setting MQ server.");
  client.setServer(mqtt_server, 1883);
}





void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    // If you do not want to use a username and password, change next line to
    // if (client.connect("ESP8266Client")) {
    if (client.connect("ESP8266Client_bedroom", mqtt_user, mqtt_password)) {
      Serial.println("connected");
      isconnected=true;
    } else {
      Serial.print("failed, rc=");
      isconnected=false;
      Serial.print(client.state());
      Serial.println(" try again in 15 seconds");
      // Wait 5 seconds before retrying
      delay(15000);
    }
  }
}

bool checkBound(float newValue, float prevValue, float maxDiff) {
  return !isnan(newValue) &&
         (newValue < prevValue - maxDiff || newValue > prevValue + maxDiff);
}

long lastMsg = 0;
float temp = 0.0;
float hum = 0.0;
float moist = 0.0;
float diff = 0.01;



void loop() {
  // Listenning for new clients
  WiFiClient clientweb = server.available();
  if (clientweb) {
    Serial.println("New client");
    // bolean to locate when the http request ends
    boolean blank_line = true;
    while (clientweb.connected()) {
      if (clientweb.available()) {
        char c = clientweb.read();




        if (c == '\n' && blank_line) {
            // Sensor readings may also be up to 2 seconds 'old' (its a very slow sensor)

            // Read temperature as Celsius (the default)
            float t = dht.readTemperature();
            // Read temperature as Fahrenheit (isFahrenheit = true)
            float f = dht.readTemperature(true);
            // Check if any reads failed and exit early (to try again).
            float h = dht.readHumidity();




            if (isnan(h) || isnan(t) || isnan(f)) {
              Serial.println("Failed to read from DHT sensor!");
              strcpy(celsiusTemp,"Failed");
              strcpy(fahrenheitTemp, "Failed");
              strcpy(humidityTemp, "Failed");
            }
            else{
              // Computes temperature values in Celsius + Fahrenheit and Humidity
              float hic = dht.computeHeatIndex(t, h, false);
              dtostrf(hic, 6, 2, celsiusTemp);
              float hif = dht.computeHeatIndex(f, h);
              dtostrf(hif, 6, 2, fahrenheitTemp);
              dtostrf(h, 6, 2, humidityTemp);
              // You can delete the following Serial.print's, it's just for debugging purposes






              Serial.print("Humidity: ");
              Serial.print(h);
              Serial.print(" %\t Temperature: ");
              Serial.print(t);
              Serial.print(" *C ");
              Serial.print(f);
              Serial.print(" *F\t Heat index: ");
              Serial.print(hic);
              Serial.print(" *C ");
              Serial.print(hif);
              Serial.print(" *F");
              Serial.print("Humidity: ");
              Serial.print(h);
              Serial.print(" %\t Temperature: ");
              Serial.print(t);
              Serial.print(" *C ");
              Serial.print(f);
              Serial.print(" *F\t Heat index: ");
              Serial.print(hic);
              Serial.print(" *C ");
              Serial.print(hif);
              Serial.println(" *F");
            }
            clientweb.println("HTTP/1.1 200 OK");
            clientweb.println("Content-Type: text/html");
            clientweb.println("Connection: close");
            clientweb.println();
            // your actual web page that displays temperature and humidity
            clientweb.println("<!DOCTYPE HTML>");
            clientweb.println("<html>");
            clientweb.println("<head></head><body><h3>");
            clientweb.println(celsiusTemp);
            //client.println("*C</h3><h3>Temperature in Fahrenheit: ");
            //client.println(fahrenheitTemp);
            clientweb.println("*C</h3><h3>Humidity: ");
            clientweb.println(humidityTemp);
            clientweb.println("%</h3>");
            clientweb.println("</body></html>");
            break;
        }
        if (c == '\n') {
          // when starts reading a new line
          blank_line = true;
        }
        else if (c != '\r') {
          // when finds a character on the current line
          blank_line = false;
        }
      }
    }
    // closing the client connection
    delay(1);
    clientweb.stop();
    Serial.println("Client disconnected.");
  }


  if (!client.connected()) {

    reconnect();
  }
  client.loop();

  long now = millis();
  if (now - lastMsg > 30000) {
    lastMsg = now;



    float newTemp = dht.readTemperature();
    float newHum = dht.readHumidity();


      temp = newTemp;
      Serial.print("New temperature:");
      Serial.println(String(temp).c_str());
      client.publish(temperature_topic, String(temp).c_str(), true);


      hum = newHum;
      Serial.print("New hum:");
      Serial.println(String(hum).c_str());
      client.publish(humidity_topic, String(hum).c_str(), true);
  }
}