diff --git a/gateway/gateway.ino b/gateway/gateway.ino
index e697edb..9e014e3 100644
--- a/gateway/gateway.ino
+++ b/gateway/gateway.ino
@@ -1,27 +1,91 @@
 #include "led.h"
 #include "sim5215_umts_shield.h"
+#include <SPI.h>
+#include <LoRa.h>
 
 Shield shield(5,3,4);
 
+const int pinNSS = 10;
+const int pinRST = 9;
+const int pinDIO0 = 2;
+
+struct message {
+  int vers;
+  int type;
+  int cameraId;
+  float data;
+};
+
 void setup() {
+  // Initialisation du moniteur série
+  Serial.begin(9600);
+  while (!Serial);
+  
+  // Initialisation des leds
+  Serial.println("Initialisation LEDs");
   initLed(Green, 8);
   initLed(Blue, 7);
   initLed(Red, 6);
 
+  // Début de l'initialisation 
+  Serial.println("Start initialisation");
   blinkLed(Green);
+  
+  // Initialisation de shield
+  Serial.println("Initialisation shield UMTS");
   shield.power_on();
   shield.init("0000", "", "", "");
+
+  // Initialisation LoRa
+  Serial.println("Initialisation LoRa transceiver");
+  LoRa.setPins(pinNSS, pinRST, pinDIO0);
+  while (!LoRa.begin(868E6)) {
+    Serial.print(".");
+    delay(500);
+  }
+  LoRa.setSyncWord(0x12);
+  
+  // Fin de l'initialisation
+  Serial.println("Initialisation completed");
   turnOnLed(Green);
 }
 
-void loop() {
-  turnOnLed(Red);
-  shield.sendTextMessage("0659377414", "Led RED ON");
-  turnOffLed(Red);
-  delay(10000);
-  
-  turnOnLed(Blue);
-  shield.sendTextMessage("0659377414", "Led BLUE ON");
-  turnOffLed(Blue);
-  delay(10000);
+void receiveLoRa(struct message * msg) {
+  int packetSize = LoRa.parsePacket();
+  if (packetSize) {
+    turnOnLed(Blue);
+    Serial.print("Received packet '");
+
+    while (LoRa.available()) {
+      String stringData = LoRa.readString();
+      const char* LoRaData = stringData.c_str();
+      sscanf(LoRaData, "%d-%d-%d-%f", &(msg->vers), &(msg->type), &(msg->cameraId), &(msg->data));
+      Serial.print(LoRaData); 
+      Serial.print("");
+    }
+
+    // print RSSI of packet
+    Serial.print("' with RSSI ");
+    Serial.println(LoRa.packetRssi());
+    turnOffLed(Blue);
+  }
+}
+
+void printMessage(struct message msg) {
+  Serial.println("Message : ");
+  Serial.print("\tVersion   : ");
+  Serial.print(msg.vers);
+  Serial.print("\tType      : ");
+  Serial.print(msg.type);
+  Serial.print("\tCamera ID : ");
+  Serial.print(msg.cameraId);
+  Serial.print("\tData      : ");
+  Serial.println(msg.data);
+  Serial.println("");
+}
+
+void loop() {
+  struct message msg;
+  receiveLoRa(&msg);
+  printMessage(msg);
 }