“transmitter”

#include "LoRa_E32.h"
#include "Arduino.h"
#include <SoftwareSerial.h>
SoftwareSerial mySerial(2, 3);
LoRa_E32 e32ttl(2, 3);
 void setup() {
  pinMode(7,INPUT);
  Serial.begin(9600);
  while (!Serial) {
      ; // wait for serial port to connect. Needed for native USB
    }
  delay(100);
   e32ttl.begin();
 }
struct Message {
         byte gas;
    byte flame;
     };
 int i =0;
void loop() {
  delay(2500); 
  i++; 
  byte gasValue = analogRead(A0);
  byte flameValue = digitalRead(7);
  Message box ; 
  box.gas=gasValue;
  box.flame=flameValue;
     Serial.println(box.flame);
  Serial.println(box.gas);
  //Serial.println(box.device);
  ResponseStatus rs = e32ttl.sendFixedMessage(0,3,4,&box, sizeof(Message));
  Serial.println(rs.getResponseDescription());
}

“Reciever”

#include "Arduino.h"
#include "LoRa_E32.h"
#include <SoftwareSerial.h>
#include "UbidotsESPMQTT.h"
SoftwareSerial mySerial(D6, D7);
LoRa_E32 e32ttl(D6, D7);
  /****************************************
 * Define Constants
 ****************************************/
#define TOKEN "*gizli*"     // Your Ubidots TOKEN
#define WIFINAME "yunusemre"  // Your SSID
#define WIFIPASS "yunusemre"  // Your Wifi Pass
 Ubidots client(TOKEN);
 void callback(char* topic, byte* payload, unsigned int length) {
  Serial.print("Message arrived [");
  Serial.print(topic);
  Serial.print("] ");
  for (int i = 0; i < length; i++) {
    Serial.print((char)payload[i]);
  }
  Serial.println();
}
  void setup() {
//-----------Haberleşme ve Bağlantılar-------------------- 
  pinMode(D4,INPUT); // alev sensörü 
  Serial.begin(9600);
  client.setDebug(true);  // Pass a true or false bool value to activate debug messages
  client.wifiConnection(WIFINAME, WIFIPASS);
  client.begin(callback); 
 while (!Serial) {
     ; // wait for serial port to connect. Needed for native USB
    }
  delay(100);
  e32ttl.begin();
  Serial.println();
  Serial.println("Start listening!");
   }
struct Message {
    byte device;
    byte gas;
    byte flame;
};
 void loop() {
     if (e32ttl.available()  > 1){
    ResponseStructContainer rsc = e32ttl.receiveMessage(sizeof(Message));
    struct Message box = *(Message*) rsc.data;
    rsc.close();
    Serial.println("Flame");
    Serial.println(box.flame);
    Serial.println("Gas");
    Serial.println(box.gas);
   // Serial.println("Device");
   //Serial.println(box.device);
     // reciever için ateş ve gaz sensörü
    int gasValue_rec = analogRead(A0);
    int flameValue_rec = 1;
    //int flameValue_rec = digitalRead(D4);
         // KARAR MEKANİZMASI
      int alarm_t = 0;
      int alarm_r = 0;
      if(box.flame == 0 || box.gas >= 350){ // transmitter tarafında yangını kontrol ediyoruz.
        alarm_t = 1;
      }
      if(gasValue_rec >= 350 || flameValue_rec == 0){// reciever tarafında yangını kontrol ediyoruz.
        alarm_r = 1;
        }
         if (!client.connected()) {
    client.reconnect();
  }
 //transmitter'ı ubidots'a yükleme
  client.add("flame_t", box.flame);  // Insert your variable Labels and the value to be sent
  client.add("gas_t", box.gas);
  client.add("alarm_t", alarm_t);
  client.ubidotsPublish("transmiter");
 // reciever'ı ubidots'a yükleme
  client.add("flame_r", flameValue_rec);  // Insert your variable Labels and the value to be sent
  client.add("gas_r", gasValue_rec);
  client.add("alarm_r", alarm_r);
  client.ubidotsPublish("reciever");
  client.loop();
  delay(1000);
        }
         }