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 08: Receiving SMS

This example shows how to receive and read a SMS

Required Materials

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


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


 *  -----------  3G_08 - Receiving SMS  ------------ 
 *  Explanation: This example shows how to receive and show a SMS.
 *  Copyright (C) 2014 Libelium Comunicaciones Distribuidas S.L. 
 *  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 
 *  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 <>. 
 *  Version:           1.1
 *  Design:            David Gascón 
 *  Implementation:    Alejandro Gállego

#include "Wasp3G.h"

int8_t answer;

void setup()

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

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

        // 2. 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"));
            USB.println(F("PIN code incorrect"));

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

            USB.println(F("3G module cannot connect to the network..."));

        // 4. configures info from incoming SMS
        answer = _3G.setInfoIncomingSMS();
        if ( answer == 1)
            USB.println(F("Info Incoming SMS OK"));
            USB.println(F("Info Incoming SMS NOT OK"));
        // Problem with the communication with the 3G module
        USB.println(F("3G module not started"));


void loop()
    // 5. waits for receive a SMS
    while (_3G.manageIncomingData() != 2);

    // 6. then shows the text of the message    
    USB.print(F("SMS from: "));
    USB.print(F("Text of the SMS: "));



USB port started...
3G module ready...
Setting PIN code...
PIN code accepted
3G+GPS module connected to the network...
SMS from: +34608181094
Text of the SMS: This is a test message from Waspmote!

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