Development v12

Warning - Product Update

All the resources present on this section belong to Waspmote v12, Waspmote Plug & Sense! v12 and Meshlium v3.8.

If you have a Waspmote v15, Waspmote Plug & Sense! v15 or Meshlium v4.0 please go to the new Development Section.

Check what is your version and what are the differences between the old and the new one in this document.

» 3G 15a: Getting URL

This example shows how to get an URL

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_15a - Getting URL  --------------- 
 *  
 *  Explanation: This example shows how to get an URL
 *  
 *  Copyright (C) 2016 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:           1.4
 *  Design:            David Gascón 
 *  Implementation:    Alejandro Gállego
 */

#include "Wasp3G.h"

int8_t answer;
char aux_str[200];
char aux_str2[20];
int counter;
uint8_t battery;    

void setup()
{    
    USB.println(F("USB port started..."));

    USB.println(F("---******************************************************************************---"));
    USB.println(F("GET method to the libelium's test url with frame..."));
    USB.println(F("You can use this php to test the HTTP connection of the module."));
    USB.println(F("The php returns the parameters that the user sends with the URL."));
    USB.println(F("In this case the RTC time and the battery level."));
    USB.println(F("---******************************************************************************---"));

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

}

void loop()
{

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

        // 3. set 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 URL with GET method..."));
            battery = PWR.getBatteryLevel(); 
            sprintf(aux_str, "GET /test-get-post.php?counter=%d&battery=%u HTTP/1.1\r\nHost: test.libelium.com\r\nContent-Length: 0\r\n\r\n", counter,  battery);

            // 5. gets URL from the solicited URL
            answer = _3G.readURL("test.libelium.com", 80, aux_str);

            // 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);
            } 

            USB.print(F("Getting URL with POST method..."));
            battery = PWR.getBatteryLevel(); 
            sprintf(aux_str2, "counter=%d&battery=%u", counter,battery);
            sprintf(aux_str, "POST /test-get-post.php HTTP/1.1\r\nHost: test.libelium.com\r\nContent-Type: application/x-www-form-urlencoded\r\nContent-Length: %d\r\n\r\n%s", strlen(aux_str2), aux_str2);

            // 6. gets URL from the solicited URL
            answer = _3G.readURL("test.libelium.com", 80, aux_str);

            // 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"));
    }

    // 7. Powers off the 3G module
    _3G.OFF();

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

    // 8. sleeps one hour
    PWR.deepSleep("00:01:00:00", RTC_OFFSET, RTC_ALM1_MODE1, ALL_OFF);

}






Output

H#
3G module ready...
Setting PIN code...
PIN code accepted
3G module connected to the network...
Getting URL with GET method...Done
http/1.1 200 ok
date: fri, 06 jun 2014 09:21:32 gmt
server: apache
x-powered-by: php/5.3.28
content-type: text/html
transfer-encoding: chunked

23
method::get;counter::0;battery::72;
0


Getting URL with POST method...Done
http/1.1 200 ok
date: fri, 06 jun 2014 09:22:06 gmt
server: apache
x-powered-by: php/5.3.28
content-type: text/html
transfer-encoding: chunked

24
method::post;counter::0;battery::72;
0


Sleeping...

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