Geeknesia

Tahap 1

Pastikan anda sudah membuat Project,Gateway dan Device pada akun Geeknsia anda,mengenai project ini.

Tahap2

Setelah menyiapkan alat dan bahan, sekarang kita coba untuk menghubungkan Arduino ke SIM800L, ikuti gambar wiring dibawah ini:

Jangan lupa masukan SIM Card anda seperti gambar di bawah ini:

Gunakan Micro SIM Card.

Gambar Hardware/Device

Tahap 3

Setelah komponen dirangkaikan, buatlah script/code pada arduino seperti contoh code dibawah ini:

Code:

#include <AltSoftSerial.h>
AltSoftSerial m2m_gprs;

int8_t answer;
int onModulePin = 2;
char aux_str[100];
char pin[] = "";   //isi jika ada settingan Pin pada SIM Card
char apn[] = "3data";  //Isi Apn sesuai SIM Card yang dipakai
char user_name[] = "3data"; //Isi Username sesuai SIM Card yang dipakai
char password[] = "3data";  //Isi Password sesuai SIM Card yang dipakai  
char IP_address[] = "geeknesia.com";
char port[] = "80";  //Port Geeknesia
int arah_angin, nilai_ppm;
float kecepatan_angin, suhu_udara, kelembaban_udara, tegangan_backup, curah_hujan;
long tekanan_udara;

char arah_angin_Ar[10];
char kecepatan_angin_Ar[10];
char nilai_ppm_Ar[10];
char tekanan_udara_Ar[10];
char suhu_udara_Ar[10];
char kelembaban_udara_Ar[10];
char tegangan_backup_Ar[10];
char curah_hujan_Ar[10];

void setup()
{
  Serial.begin(9600);
  m2m_gprs.begin(9600);
  m2m_gprs.println("Starting...");
  delay(3000);
  snprintf(aux_str, sizeof(aux_str), "AT+CPIN=%s", pin);
  sendATcommand(aux_str, "OK", 2000);
  delay(3000);
  m2m_gprs.println("Connecting to the network...");
  while ( sendATcommand2("AT+CREG?", "+CREG: 0,1", "+CREG: 0,5", 1000) == 0 );

}

void loop()
{
  nilai_ppm = 123; //dummy
  suhu_udara = 123.0; //dummy
  dtostrf(suhu_udara, 5, 2, suhu_udara_Ar);
  update();
  delay(2000);
}

void update()
{
  if (sendATcommand2("AT+CIPMUX=0", "OK", "ERROR", 1000) == 1)
  {
    while (sendATcommand("AT+CIPSTATUS", "INITIAL", 500)  == 0 );
    delay(5000);
    snprintf(aux_str, sizeof(aux_str), "AT+CSTT=\"%s\",\"%s\",\"%s\"", apn, user_name, password);
    if (sendATcommand2(aux_str, "OK",  "ERROR", 30000) == 1)
    {
      while (sendATcommand("AT+CIPSTATUS", "START", 500)  == 0 );
      delay(5000);
      if (sendATcommand2("AT+CIICR", "OK", "ERROR", 30000) == 1)
      {
        while (sendATcommand("AT+CIPSTATUS", "GPRSACT", 500)  == 0 );
        delay(5000);
        if (sendATcommand2("AT+CIFSR", ".", "ERROR", 10000) == 1)
        {
          while (sendATcommand("AT+CIPSTATUS", "IP STATUS", 500)  == 0 );
          delay(5000);
          m2m_gprs.println("Opening TCP");
          snprintf(aux_str, sizeof(aux_str), "AT+CIPSTART=\"TCP\",\"%s\",\"%s\"", IP_address, port);
          if (sendATcommand2(aux_str, "CONNECT OK", "CONNECT FAIL", 30000) == 1)
          {
            m2m_gprs.println("Connected");

            String ip_data = "GET /api/data?api_key=dbabcff8c257480ae6b251cee02xxxxx&attributes={";
            ip_data  += "\"PPM\":" + String(nilai_ppm) + ",";
            ip_data  += "\"Suhu\":" + String(suhu_udara_Ar);
            ip_data  += "}";
            ip_data  += "\r\n\r\n";
            sprintf(aux_str, "AT+CIPSEND=%d", ip_data.length());
            if (sendATcommand2(aux_str, ">", "ERROR", 10000) == 1)
            {
              m2m_gprs.print(ip_data);
              delay(5000);
            }
            sendATcommand2("AT+CIPCLOSE", "CLOSE OK", "ERROR", 10000);
          }
          else
          {
            m2m_gprs.println("Error opening the connection");
          }
        }
        else
        {
          m2m_gprs.println("Error getting the IP address");
        }
      }
      else
      {
        m2m_gprs.println("Error bring up wireless connection");
      }
    }
    else
    {
      m2m_gprs.println("Error setting the APN");
    }
  }
  else
  {
    m2m_gprs.println("Error setting the single connection");
  }
  sendATcommand2("AT+CIPSHUT", "OK", "ERROR", 10000);
  delay(10000);
}

int8_t sendATcommand(char* ATcommand, char* expected_answer, unsigned int timeout)
{
  uint8_t x = 0,  answer = 0;
  char response[100];
  unsigned long previous;
  memset(response, '\0', 100);
  delay(100);
  while ( m2m_gprs.available() > 0) m2m_gprs.read();
  m2m_gprs.println(ATcommand);
  x = 0;
  previous = millis();
  do
  {
    if (m2m_gprs.available() != 0)
    {
      response[x] = m2m_gprs.read();
      x++;
      if (strstr(response, expected_answer) != NULL)
      {
        answer = 1;
      }
    }
  }
  while ((answer == 0) && ((millis() - previous) < timeout));
  return answer;
}

int8_t sendATcommand2(char* ATcommand, char* expected_answer1, char* expected_answer2, unsigned int timeout)
{
  uint8_t x = 0,  answer = 0;
  char response[100];
  unsigned long previous;
  memset(response, '\0', 100);
  delay(100);
  while ( m2m_gprs.available() > 0) m2m_gprs.read();
  m2m_gprs.println(ATcommand);
  x = 0;
  previous = millis();
  do
  {
    if (m2m_gprs.available() != 0)
    {
      response[x] = m2m_gprs.read();
      x++;
      if (strstr(response, expected_answer1) != NULL)
      {
        answer = 1;
      }
      else if (strstr(response, expected_answer2) != NULL)
      {
        answer = 2;
      }
    }
  }
  while ((answer == 0) && ((millis() - previous) < timeout));
  return answer;
}

  

Untuk settingan SIM Card, sesuaikan dengan SIM Card yang anda gunakan, untuk melihat settingan SIM Card bisa dilihat lewat handphone atau cari informasi lewat media internet.