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Communication / GPRS+GPS:

» GPRS SIM928A 08: Sending SMS

This example shows how to send a SMS

Required Materials

1 x Waspmote
1 x Battery
1 x GPRS_SIM928A module
1 x GPRS/3G antenna
1 x SIM card

Notes

- GPRS_SIM928 module must be powered with a battery
- When GPRS_SIM928 is in use, interrupts can't be used
- This example can be executed in Waspmote v12 and Waspmote v15

Code

/*  
 *  ------  GPRS_SIM928A_08 - Sending SMS  -------- 
 *  
 *  Explanation: This example shows how to send a SMS.
 *  
 *  Copyright (C) 2015 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:           0.1
 *  Design:            David Gascón 
 *  Implementation:    Alejandro Gállego
 */

#include "WaspGPRS_SIM928A.h"
int answer;

char text_message[]="This is a test message from Waspmote!";

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

    // 1. activates the GPRS_SIM928A module:
    answer = GPRS_SIM928A.ON(); 
    if ((answer == 1) || (answer == -3))
    {
        USB.println(F("GPRS_SIM928A module ready..."));
        
        // 2. sets pin code
        USB.println(F("Setting PIN code..."));
        // **** must be substituted by the SIM code
        if (GPRS_SIM928A.setPIN("****") == 1) 
        {
            USB.println(F("PIN code accepted"));
        }
        else
        {
            USB.println(F("PIN code incorrect"));
        }
        
        // 3. waits for connection to the network
        answer = GPRS_SIM928A.check(180);    
        if (answer == 1)
        {
            USB.println(F("GPRS_SIM928A module connected to the network..."));
            
            // ********* should be replaced by the desired tlfn number
            // 4. sends an SMS
            if (GPRS_SIM928A.sendSMS(text_message,"*********") == 1) 
            {
                USB.println(F("SMS Sent OK")); 
            }
            else
            {
                USB.println(F("Error sending SMS"));   
            }
        }
        else
        {
            USB.println(F("GPRS_SIM928A module cannot connect to the network..."));
        }
    
    }
    else
    {
        USB.println(F("GPRS_SIM928A module NOT ready..."));
    }
    
    GPRS_SIM928A.OFF();

}


void loop()
{

}


Output

H#
USB port started...
GPRS_SIM928A module ready...
Setting PIN code...
PIN code accepted
GPRS_SIM928A module connected to the network...
SMS sent OK

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