Development

Communication / 3G + GPS:

» 3G 16: Getting URLS

This example shows how to get an URLS.

Required Materials

1 x Waspmote
1 x battery
1 x 3G + GPS module
1 x GPRS/3G antenna
1 x SIM card

Notes

- 3G module must be powered with a battery
- When 3G is in use, interrupts can't be used
- This example can be executed in Waspmote v12 and Waspmote v15

Code

/*  
 *  --------------- 3G_16 - Getting URLS  --------------- 
 *  
 *  Explanation: This example shows how to get an URLS
 *  
 *  Copyright (C) 2014 Libelium Comunicaciones Distribuidas S.L. 
 *  http://www.libelium.com 
 *  
 *  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 3 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 <http://www.gnu.org/licenses/>. 
 *  
 *  Version:           1.1
 *  Design:            David Gascón 
 *  Implementation:    Alejandro Gállego
 */

#include "Wasp3G.h"

char apn[] = "apn";
char login[] = "login";
char password[] = "password";

char url[] = "url";
uint16_t port; 
char request[] = "request";

int8_t answer;

void setup()
{
    USB.println(F("**************************"));
    // 1. sets operator parameters
    _3G.set_APN(apn, login, password);
    // And shows them
    _3G.show_APN();
    USB.println(F("**************************"));
}

void loop()
{

    // setup for Serial port over USB:
    USB.ON();
    USB.println(F("USB port started..."));

    // 2. activates the 3G module:
    answer = _3G.ON();
    if ((answer == 1) || (answer == -3))
    {
        USB.println(F("3G module ready..."));

        // 3. sets pin code:
        USB.println(F("Setting PIN code..."));
        // **** must be substituted by the SIM code
        if (_3G.setPIN("****") == 1) 
        {
            USB.println(F("PIN code accepted"));
        }
        else
        {
            USB.println(F("PIN code incorrect"));
        }

        // 4. waits for connection to the network
        answer = _3G.check(180);    
        if (answer == 1)
        { 
            USB.println(F("3G module connected to the network..."));

            USB.print(F("Getting URLS..."));

            // 5. gets URL from the solicited URL
            answer = _3G.readURLS(url,port,request);

            // checks the answer
            if ( answer == 1)
            {
                USB.println(F("Done"));  
                USB.println(_3G.buffer_3G);
            }
            else if (answer < -14)
            {
                USB.print(F("Failed. Error code: "));
                USB.println(answer, DEC);
                USB.print(F("CME error code: "));
                USB.println(_3G.CME_CMS_code, DEC);
            }
            else 
            {
                USB.print(F("Failed. Error code: "));
                USB.println(answer, DEC);
            } 
        }
        else
        {
            USB.println(F("3G module cannot connect to the network..."));
        }  
    }
    else
    {
        // Problem with the communication with the 3G module
        USB.println(F("3G module not started"));
    }

    // 6. powers off the 3G module
    _3G.OFF(); 

    USB.println(F("Sleeping..."));

    // 7. sleeps one hour
    PWR.deepSleep("00:01:00:00", RTC_OFFSET, RTC_ALM1_MODE1, ALL_OFF);

}

Output

H#
USB port started...
3G module ready...
Setting PIN code...
PIN code accepted
3G module connected to the network...
Getting URL...Done
Hello Waspmote!Thanks for using Libelium radio WIFI
Sleeping...

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