Geeknesia

Intel Galileo                                                                                        Intel Galileo Gen 2

Tahap 1

Sebelum masuk ke tahap pembuatan aplikasi pastikan anda telah mempunyai akun geeknesia.com, Jika telah memiliki akun, LOG IN kemudian Create Project, Create Gateway, dan Create Device.

Install Arduino IDE versi 1.6.5, Klik disini untuk download Arduino IDE versi 1.6.5.

Jika sudah terinstall buka Arduino IDE pilih Tool=>Board=>Board Manager

Jika sudah ter-install , untuk settingan board pilih lah Intel Galileo atau Intel Galileo Gen 2 sesuai hardware yang anda gunakan.

Tahap 3

Masukan code di bawah ini:

   

#include <SPI.h>
#include <Ethernet.h>
#include <PubSubClient.h>

// Update these with values suitable for your network.
byte mac[] = { 0xDE, 0xED, 0xBA, 0xFE, 0xFE, 0xED };
byte ip[] = { 192, 168, 0, 88 };

const int buttonPin = 4;
int buttonState=1;
int flag=0;
int counter=0;
int prev =0;
int sendMQTT = 0;
bool conn_ok;
char message_buff[200];

EthernetClient ethClient;
PubSubClient client("geeknesia.com", 1883, callback, ethClient);  //Address geeknesia
void callback(char* topic, byte* payload, unsigned int length) {
}

void setup()
{
  system("ifup eth0");
  delay(10000); //wait for accessing sensor
  Serial.begin(9600);
   pinMode(4, INPUT);
    if (Ethernet.begin(mac) != 1) {
    Ethernet.begin(mac,ip);
  }
   delay(1000);
  Serial.println("connecting...");
  while (client.connect("device-6d9284456b3925220fe630fc2a4xxxxx","iot/will",0,0,"device-6d9284456b3925220fe630fc2a4xxxxx") != 1) 
  {
    Serial.println("Error connecting to MQTT1");
    delay(2000);
  }
  //Serial.println("Setup complete");
  counter=counter-1;
}
void senddata(char* topic,char* credential, char *var1, int nilai1 ){
  String pubString = "{\"code\":\"";
  pubString += credential;
  pubString +="\",";
  pubString +="\"attributes\":{\"";
  pubString +=String(var1)+"\":\""+nilai1+"\"";
  pubString +="}}";
  char message_buff[pubString.length()+1];
  pubString.toCharArray(message_buff, pubString.length()+1);
  Serial.println(message_buff);
  client.publish("iot/data",message_buff);
}
void loop()
{
if (!client.connected()){
     client.connect("device-4bc078183078e67b2d7e8d77452xxxxx",NULL,NULL,"iot/will",2,64,"device-4bc078183078e67b2d7e8d77452xxxxx");
  }
 buttonState = digitalRead(buttonPin);
  if (buttonState!=prev){
    prev = buttonState;
    if (buttonState==0){ 
      if (flag == 0){
        counter=counter+1;
        Serial.println(counter);
        senddata("device-4bc078183078e67b2d7e8d77452xxxxx","603161d27af11206824adb7a6xxxxx:0166f36a8e804849d3024d8e4xxxxxxx","Count",counter);
        flag=1;
          if(sendMQTT == 1){
              conn_ok = client.connected();
          }
          if (conn_ok == 0){            //no connection, reconnect
              client.disconnect();
          }
      }
      else{
        flag=0;
      }
  }
  }
}