GPRS Ping

/*

 This uses an MKR GSM 1400 to continuously pings given host specified by IP Address or name.

Circuit:

* MKR GSM 1400 board

* Antenna

* SIM card with a data plan

 created 06 Dec 2017

 by Arturo Guadalupi

*/
#include <MKRGSM.h>

#include "arduino_secrets.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 and wait for port to open:

 Serial.begin(9600);

 while (!Serial) {

   ; // wait for serial port to connect. Needed for native USB port only

 }

 Serial.println("Starting Arduino GPRS ping.");

 // 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(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);
}