Arduino_SourceCode_SmartCamera/gateway/gateway.ino

#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;
};

struct message msg = {-1, -1, -1, 0.0};

void setup() {
  // Initialisation du moniteur série
  Serial.begin(115200);
  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", "mmsbouygtel.com", "", "");

  // 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 receiveLoRa() {
  msg.vers = -1;
  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();
      int partie_entiere;
      int partie_decimale;
      sscanf(LoRaData, "%d-%d-%d-%d.%d", &(msg.vers), &(msg.type), &(msg.cameraId), &partie_entiere, &partie_decimale);
      msg.data = float(partie_entiere) + (float(partie_decimale))/100;
      Serial.print(LoRaData); 
      Serial.print("");
    }

    // print RSSI of packet
    Serial.print("' with RSSI ");
    Serial.println(LoRa.packetRssi());
    turnOffLed(Blue);
  }
}

void printMessage() {
  if (msg.vers > 0) {
    Serial.println("Message : ");
    Serial.print("\tVersion   : ");
    Serial.println(msg.vers);
    Serial.print("\tType      : ");
    Serial.println(msg.type);
    Serial.print("\tCamera ID : ");
    Serial.println(msg.cameraId);
    Serial.print("\tData      : ");
    Serial.println(msg.data);
    Serial.println("");
  }
}

void processMessage() {
  if (msg.vers > 0) {
    delay(50);
    const char url[] = "rasp.pikouri.fr";
    int port = 80;
    //Event
    if (msg.type == 1) {
      char request[150];
      sprintf(request, "POST /api/cameras/%d/counter HTTP/1.1\r\nHost: rasp.pikouri.fr\r\n\r\n", msg.cameraId);
      Serial.println(request);
      turnOnLed(Red);
      shield.sendTextMessage("0672654516", "[Smart Camera 1] Funny bird detected!");
      if (shield.sendPOSTrequest(url, port, request, 20000) == 3) {
        shield.power_on();
        delay(1000);
        shield.power_on();
        shield.init("0000", "mmsbouygtel.com", "", "");
      } else {
        Serial.println("Request sent\n\n\n");
      }
      turnOffLed(Red);
    }
    //Temperature 
    else if (msg.type == 2) {
      char request[200];
      String tempData = String(msg.data);
      sprintf(request, "POST /api/cameras/%d/temperature HTTP/1.1\r\nHost: rasp.pikouri.fr\r\nContent-Type: application/json\r\nContent-Length: %d\r\n\r\n%s",  msg.cameraId, tempData.length(),tempData.c_str());
      Serial.println(request);
      turnOnLed(Red);
      if (shield.sendPOSTrequest(url, port, request, 20000) == 3) {
        shield.power_on();
        delay(1000);
        shield.power_on();
        shield.init("0000", "mmsbouygtel.com", "", "");
      } else {
        Serial.println("Request sent\n\n\n");
      }
      turnOffLed(Red);
    } else {
      Serial.print("Type not indentified: ");
      Serial.println(msg.type);
    }
  }
}

void loop() {
  receiveLoRa();
  processMessage();
}