GPRSPing.ino

/*********************************************************************************************************************************
  GPRSPing.ino

  For ESP8266, ESP32, SAMD21/SAMD51, nRF52, SAM DUE, Teensy and STM32 with GSM modules

  GSM_Generic is a library for the ESP8266, ESP32, SAMD21/SAMD51, nRF52, SAM DUE, Teensy and STM32 with GSM modules

  Based on and modified from MKRGSM Library (https://github.com/arduino-libraries/MKRGSM)

  Built by Khoi Hoang https://github.com/khoih-prog/GSM_Generic
  Licensed under GNU Lesser General Public License

  Copyright (C) 2017  Arduino AG (http://www.arduino.cc/)
  This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation, either version 2.1 of the License, or (at your option) any later version.
  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty
  of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
  You should have received a copy of the GNU General Public License along with this program.
  If not, see <https://www.gnu.org/licenses/>.
 **********************************************************************************************************************************/

/*

  This uses an GSM module to continuously pings given host specified by IP Address or name.

  Circuit:
  GSM Module
  Antenna
  SIM card with a data plan

  created 06 Dec 2017
  by Arturo Guadalupi
*/

#include "defines.h"

// Please enter your sensitive data in the Secret tab or arduino_secrets.h
// PIN Number
const char PINNUMBER[]     = SECRET_PINNUMBER;
// APN data
const char GPRS_APN[]      = SECRET_GPRS_APN;
const char GPRS_LOGIN[]    = SECRET_GPRS_LOGIN;
const char GPRS_PASSWORD[] = SECRET_GPRS_PASSWORD;

// initialize the library instance
GSMSSLClient client;
GPRS gprs;
GSM gsmAccess;

// Specify IP address or hostname
String hostName = "www.google.com";
int pingResult;

void setup()
{
  // initialize serial communications and wait for port to open:
  Serial.begin(115200);
  while (!Serial);

  delay(200);

  Serial.print(F("\nStarting GPRSPing on ")); Serial.println(BOARD_NAME);
  Serial.println(GSM_GENERIC_VERSION);

#if ( defined(DEBUG_GSM_GENERIC_PORT) && (_GSM_GENERIC_LOGLEVEL_ > 4) )
  MODEM.debug(DEBUG_GSM_GENERIC_PORT);
#endif

  // connection state
  bool connected = false;

  // After starting the modem with GSM.begin()
  // attach the shield to the GPRS network with the APN, login and password
  while (!connected)
  {
    if ((gsmAccess.begin(baudRateSerialGSM, PINNUMBER) == GSM_READY) &&
        (gprs.attachGPRS(GPRS_APN, GPRS_LOGIN, GPRS_PASSWORD) == GPRS_READY))
    {
      connected = true;
    } 
    else 
    {
      Serial.println("Not connected");
      delay(1000);
    }
  }
}

void loop() 
{
  Serial.print("Pinging ");
  Serial.print(hostName);
  Serial.print(": ");

  pingResult = gprs.ping(hostName);

  if (pingResult >= 0) 
  {
    Serial.print("SUCCESS! RTT = ");
    Serial.print(pingResult);
    Serial.println(" ms");
  } 
  else 
  {
    Serial.print("FAILED! Error code: ");
    Serial.println(pingResult);
  }

  delay(5000);
}