Untitled

#include <WiFi.h>
#include <WiFiClient.h>
#include "Adafruit_MQTT.h"
#include "Adafruit_MQTT_Client.h"


/************************* Push Button Init*******************/
const int BUTTON_PIN_1 = 18; // the number of the pushbutton pin
const int BUTTON_PIN_2 = 19;
const int BUTTON_PIN_3 = 21;
const int BUZZER_PIN = 22;

int lastState1 = HIGH;
int lastState2 = HIGH;
int lastState3 = HIGH; // the previous state from the input pin

int currentState1;  
int currentState2;
int currentState3; // the current reading from the input pin

int pushButton_1;
int pushButton_2;
int pushButton_3;

/************************* WiFi Access Point *********************************/

#define WLAN_SSID       "Zayn"
#define WLAN_PASS       "ibrahimarkana"

/**************************** MQTT Setup ***********************************/

#define MQTT_SERVER      "broker.hivemq.com"
#define MQTT_PORT         1883
#define TOPIC             "dashboard/sensor001"

String MACHINE_NO = "MACHINE 01";
String DRAWING_NO = "581078-0021";
String MOLD_NO = "01";
String COSTUMER = "TOKAIRIKA";

String Json_Data = "";

WiFiClient client;

Adafruit_MQTT_Client mqtt(&client, MQTT_SERVER, MQTT_PORT);
Adafruit_MQTT_Publish push_sensor = Adafruit_MQTT_Publish(&mqtt, TOPIC);

void buzzer(){
  digitalWrite(BUZZER_PIN, HIGH);
  delay(200);
  digitalWrite(BUZZER_PIN, LOW);
  delay(200);
  digitalWrite(BUZZER_PIN, HIGH);
  delay(200);
}

void MQTT_connect() {
      int8_t ret;
      if (mqtt.connected()) {
            return;
      }
    
      Serial.print("Connecting to MQTT... ");
    
      uint8_t retries = 3;
      while ((ret = mqtt.connect()) != 0) {
           Serial.println(mqtt.connectErrorString(ret));
           Serial.println("Retrying MQTT connection in 5 seconds...");
           mqtt.disconnect();
           delay(5000);
           retries--;
           if (retries == 0) {
                while (1);
           }
      }
      Serial.println("MQTT Connected!");
}

void setup() {
      
      Serial.begin(115200);
      delay(10);
    
      Serial.println(); Serial.println();
      Serial.print("Connecting to ");
      Serial.println(WLAN_SSID);
    
      WiFi.begin(WLAN_SSID, WLAN_PASS);
      while (WiFi.status() != WL_CONNECTED) {
            delay(500);
            Serial.print(".");
      }
      Serial.println();
    
      Serial.println("WiFi connected");
      Serial.println("IP address: "); Serial.println(WiFi.localIP());

      Serial.println();

      pinMode(BUTTON_PIN_1, INPUT_PULLUP);
      pinMode(BUTTON_PIN_2, INPUT_PULLUP);
      pinMode(BUTTON_PIN_3, INPUT_PULLUP);
      pinMode(BUZZER_PIN, OUTPUT);
}
/**************************** Buzzer Function ******************/


void loop() {
     MQTT_connect();
     // read the state of the switch/button:
     currentState1 = digitalRead(BUTTON_PIN_1);
     currentState2 = digitalRead(BUTTON_PIN_2);
     currentState3 = digitalRead(BUTTON_PIN_3);
  
    if(lastState1 == LOW && currentState1 == HIGH){
      buzzer();
      pushButton_1 = 1;
      pushButton_2 = 0;
      pushButton_3 = 0;
      if (! push_sensor.publish(Json_Data.c_str())) {
        Serial.println(F("Failed to Publish data..."));
      } else {
        Serial.println("Status Temperature : " +  String (pushButton_1));
        Serial.println("Status Timer : " +  String (pushButton_2));
        Serial.println("Status Material : " +  String (pushButton_3));
        Serial.println("");
      }
      
    }else
    if(lastState2 == LOW && currentState2 == HIGH){
      buzzer();
      pushButton_1 = 0;
      pushButton_2 = 1;
      pushButton_3 = 0;
      if (! push_sensor.publish(Json_Data.c_str())) {
        Serial.println(F("Failed to Publish data..."));
      } else {
        Serial.println("Alarm Tamperature : " +  String (pushButton_1));
        Serial.println("Alarm Timer : " +  String (pushButton_2));
        Serial.println("Status Material : " +  String (pushButton_3));
        Serial.println(""); }
    }else
    if(lastState3 == LOW && currentState3 == HIGH){
      buzzer();
      pushButton_1 = 0;
      pushButton_2 = 0;
      pushButton_3 = 1;
      if (! push_sensor.publish(Json_Data.c_str())) {
        Serial.println(F("Failed to Publish data..."));
      } else {
        Serial.println("Alarm Tamperature : " +  String (pushButton_1));
        Serial.println("Alarm Timer : " +  String (pushButton_2));
        Serial.println("Status Material : " +  String (pushButton_3));
        Serial.println("");}
    }
      
    lastState1 = currentState1;
    lastState2 = currentState2;
    lastState3 = currentState3;

    Json_Data = "{ \"pb_1\": \"" + String (pushButton_1) + "\"" +
                ", \"pb_2\": \"" + String (pushButton_2) + "\"" +
                ", \"pb_3\": \"" + String (pushButton_3) + "\"" +
                "}";
}