Sender with LoRa

#include <LoRa.h>
#include <SPI.h>
#include <DHT.h>
#define DHT1 4          // Digital pin connected to the DHT1 sensor
#define DHTTYPE DHT11   // DHT 11
#define ObjectID 1654
#define Relay1 27        //For Vane_1 & Dht_1
#define Relay2 26       //For Vane_2 & Dht_2
#define Relay3 25       //For Vane_3 & Dht_3
#define Relay4 33       //For Pompe water
#define ss 5
#define rst 14
#define dio0 2
int SensorPin = A0 ;
DHT dht1(DHT1, DHTTYPE);
bool Relay_1 = false , Relay_2 = false, Relay_3 = false ,Relay_4 = false ;
typedef struct  __attribute__((__packed__)) {
uint8_t id;
float temp1;
float hum;
} Donnee;

void setup() {

  Serial.begin(115200);
  pinMode(Relay1,OUTPUT);
  pinMode(Relay2,OUTPUT);
  pinMode(Relay3,OUTPUT);
  pinMode(Relay4,OUTPUT);

  digitalWrite(Relay1,LOW) ;
  digitalWrite(Relay2,LOW) ;
  digitalWrite(Relay3,LOW) ;
  digitalWrite(Relay4,LOW) ;
  dht1.begin();
  while (!Serial);
  Serial.println("LoRa Sender") ;
  LoRa.setPins(ss, rst, dio0);
    while (!LoRa.begin(866E6)) {
    Serial.println(".");
    delay(500);
  }
  LoRa.setSyncWord(0xF3);
  Serial.println("LoRa Initializing OK!");
}

void loop() {
Donnee donnee;

  donnee.temp1 = dht1.readTemperature();
  donnee.hum  = dht1.readHumidity();
  donnee.id = ObjectID;
  delay(1000);
  Serial.print("L'identifiant est: ");
  Serial.println(donnee.id);
  Serial.print("Temperature1: ");
  Serial.print(donnee.temp1);
  Serial.print( "°C");
  Serial.print(" | Humidité1: ");
  Serial.print(donnee.hum);
  Serial.println("%");
  Serial.println("-----------------------------------");
   
if (donnee.hum < 40 ){
    digitalWrite(Relay1,HIGH);
    Relay_1 = true;
  }
  else { 
    digitalWrite(Relay1,LOW);
    Relay_1 = false;
  }
  if (donnee.hum < 40){
    digitalWrite(Relay2,HIGH);
    Relay_2 = true;
  }
  else { 
    digitalWrite(Relay2,LOW);
    Relay_2 = false;
  }  
  if (donnee.hum < 40){
    digitalWrite(Relay3,HIGH);
    Relay_3 = true;
  }
  else { 
    digitalWrite(Relay3,LOW);
    Relay_3 = false;
  }
  if (Relay_1   || Relay_2   || Relay_3 ){
    digitalWrite(Relay4,HIGH);
  }
  else { 
    digitalWrite(Relay4,LOW);
  }
  delay(500);

LoRa.beginPacket();
Serial.println("data sending");
LoRa.write((uint8_t *) &donnee, sizeof(Donnee));
Serial.println("data sent");
LoRa.endPacket();
}