#include <ESP8266WiFi.h>
#include <PubSubClient.h>

const char* ssid = "VOO-375468";
const char* password = "UYQQMTHF";
const char* mqtt_server = "192.168.0.13";
String pubString ;

char message_buff[100];

WiFiClient espClient;
PubSubClient client(espClient);

const int Led = 14;

int i;
int val;
int redpin=0;
void setup() {
    pinMode(Led, OUTPUT);
    pinMode(redpin,OUTPUT);
    digitalWrite(Led, LOW);
    Serial.begin(9600);
    WiFi.softAPdisconnect(true);
    WiFi.begin(ssid, password);

    // Wait for connection
  while (WiFi.status() != WL_CONNECTED) {
    delay(500);
    Serial.print(".");
  }
  Serial.println("");
  Serial.print("Connected to ");
  Serial.println(ssid);
  Serial.print("IP address: ");
  Serial.println(WiFi.localIP());
  client.setServer(mqtt_server, 1883);
  
}

void reconnect() {
  // Loop until we're reconnected
  while (!client.connected()) {
    Serial.print("Attempting MQTT connection...");
    // Attempt to connect
    if (client.connect("ESP8266Client-TempSensor")) {
      Serial.println("connected");
    } else {
      Serial.print("failed, rc=");
      Serial.print(client.state());
      Serial.println(" try again in 5 seconds");
      delay(5000);
    }
  }
}


void loop() {

  if (!client.connected()) {
    reconnect();
  }else{
    digitalWrite(Led, HIGH);

    i=analogRead(redpin);
    val=(6762/(i-9))-4;
    if(5<val && val<50){
     pubString = String((int)val);
    // pubString = "Sound : " + pubString;
    pubString.toCharArray(message_buff, pubString.length()+1);
    Serial.println(val);
    client.publish("Sound",message_buff); }
    delay(130);
    }
    
  client.loop();
  
   
     
    
}