Difference between revisions of "3G + GPS Shield for Arduino"

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== Introduction ==
 
== Introduction ==
  
−
The new 3G shield for Arduino enables the connectivity to high speed WCDMA and HSPA cellular networks in order to make possible the creation of the next level of worldwide interactivity projects inside the new "Internet of Things" era.
+
Note:
  
−
The module counts also with an internal GPS what enables the location of the device outdoors and indoors combining standard NMEA frames with mobile cell ID triangulation using both assisted-mobile (A-GPS) and mobile-based (S-GPS) modes.
+
This shield uses wall adapter rated at 6V/2A. Please don't use voltage larger than 6V, it will burn the 3G module.
  
−
Other interesting accessories which can be connected to the module are a video camera which enables the record of video in high resolution (640x480), an audio kit including microphone, speaker, hands free and headphones sets and a SD socket to save directly all the data coming from the 3G network or recorded from the video camera. You can even reproduce audio files stored in the SD card (like a mp3 player!).
 
  
−
You can also use it as a standard 3G modem at full speed (~7.2Mbps download, ~5.5Mbps upload) just connecting it through its specific mini-USB socket to your laptop (Linux, Windows, MacOS).
+
This 3G+GPS Shield is using the design, schematics and code from
  
−
The new communicating module is specially oriented to work with Internet servers implementing internally several application layer protocols which make easier to send the information to the cloud. We can make HTTP and HTTPS (secure mode) navigation, downloading and uploading content to a web server. In the same way FTP and FTPS (secure mode) protocols are also available which is really useful when your application requires handling files. You can even send and receive mails directly from Arduino using the SMTP and POP3 clients implemented internally.
+
http://www.cooking-hacks.com/index.php/documentation/tutorials/arduino-3g-gprs-gsm-gps.
  
−
With the SD Card socket so you can handle a complete FAT16 file systems and store up to 32GB of information. This specially useful as the 3G module can work at full speed (~7.2Mbps download, ~5.5Mbps upload) when working with the SD files directly without need of Arduino for data or files management.
+
 
 +
The new 3G shield for Arduino enables the connectivity to high speed '''WCDMA''' and '''HSPA''' cellular networks in order to make possible the creation of the next level of worldwide interactivity projects inside the new "Internet of Things" era.
 +
 
 +
The module counts also with an internal '''GPS''' what enables the location of the device outdoors and indoors combining standard NMEA frames with mobile cell ID triangulation using both assisted-mobile '''(A-GPS)''' and mobile-based '''(S-GPS)''' modes.
 +
 
 +
Other interesting accessories which can be connected to the module are a video camera which enables the record of video in high resolution (640x480), an '''audio kit''' including microphone, speaker, hands free and headphones sets and a SD socket to save directly all the data coming from the 3G network or recorded from the video camera. You can even reproduce audio files stored in the SD card (like a mp3 player!).
 +
 
 +
You can also use it as a standard '''3G modem''' at full speed (~7.2Mbps download, ~5.5Mbps upload) just connecting it through its specific mini-USB socket to your laptop (Linux, Windows, MacOS).
 +
 
 +
The new communicating module is specially oriented to work with Internet servers implementing internally several application layer protocols which make easier to send the information to the cloud. We can make '''HTTP''' and '''HTTPS''' (secure mode) navigation, downloading and uploading content to a web server. In the same way '''FTP''' and '''FTPS''' (secure mode) protocols are also available which is really useful when your application requires handling files. You can even send and receive mails directly from Arduino using the '''SMTP''' and '''POP3''' clients implemented internally.
 +
 
 +
With the '''SD''' Card socket so you can handle a complete FAT16 file systems and store up to '''32GB''' of information. This specially useful as the 3G module can work at full speed (~7.2Mbps download, ~5.5Mbps upload) when working with the SD files directly without need of Arduino for data or files management.
  
 
The GPS module also makes possible perform geolocation services even in indoors as it can work in A-GPS and S-GPS modes, so the location given by the GPS through NMEA sentences is completed with the cell information provided by both the 3G module and external Internet Geoposition Servers which helps you to get the most accurate location in each case.
 
The GPS module also makes possible perform geolocation services even in indoors as it can work in A-GPS and S-GPS modes, so the location given by the GPS through NMEA sentences is completed with the cell information provided by both the 3G module and external Internet Geoposition Servers which helps you to get the most accurate location in each case.
 +
 +
[[File:3G_GPS_shield.jpg]]
  
 
== Features ==
 
== Features ==
Line 61: Line 73:
 
Basic configuration:
 
Basic configuration:
  
−
[[File:arduinouno.jpg]]
+
[[File:arduinouno.jpg | 400px]]
  
 
Connect the shield to the Arduino gateway.
 
Connect the shield to the Arduino gateway.
Line 100: Line 112:
 
If you want to use the 3G module such a modem, please refer to the next link:
 
If you want to use the 3G module such a modem, please refer to the next link:
  
−
[3G modem tutorial]
+
[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/3G_modem_tutorial.pdf 3G modem tutorial]
  
 
== Audio ==
 
== Audio ==
Line 118: Line 130:
 
This connector has 4 terminals that correspond with the positive terminal of the microphone, left and rigth headphones and common ground. The order of connections show below.
 
This connector has 4 terminals that correspond with the positive terminal of the microphone, left and rigth headphones and common ground. The order of connections show below.
  
−
[[File:headphone.jpg]]
+
[[File:headphone.jpg | 400px]]
  
 
Originating and receiving voice calls
 
Originating and receiving voice calls
Line 138: Line 150:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 
*
 
*
 
*  Version 0.1
 
*  Version 0.1
−
*  Author: Alejandro Gállego
 
 
*/
 
*/
  
Line 216: Line 233:
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
 
*
 
*
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 
*  Version 0.1
 
*  Version 0.1
 
*  Author: Alejandro Gállego
 
*  Author: Alejandro Gállego
 +
 +
*  Version 0.1
 
*/
 
*/
  
Line 288: Line 309:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 
*
 
*
 
*  Version 0.1
 
*  Version 0.1
−
*  Author: Alejandro Gállego
 
 
*/
 
*/
  
Line 410: Line 436:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
−
*
+
 
 +
* Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 
*  Version 0.1
 
*  Version 0.1
 
*  Author: Alejandro Gállego
 
*  Author: Alejandro Gállego
−
*/
+
 
 +
*
 +
*  Version 0.1
 +
*/
  
  
Line 519: Line 550:
 
Also, you can use the 3G module like a mp3 player! First, you must save your music in mp3, amr or qcp format. You can use Audacity (linux) or Mobile Media Converter (Windows or Linux) to do this. Then, save the music in the Audio folder on microSD card. Now, put microSD card into the shield and enjoy the music!
 
Also, you can use the 3G module like a mp3 player! First, you must save your music in mp3, amr or qcp format. You can use Audacity (linux) or Mobile Media Converter (Windows or Linux) to do this. Then, save the music in the Audio folder on microSD card. Now, put microSD card into the shield and enjoy the music!
  
−
'''''NOTE''': You will need to '''update your firmware''' to play mp3. The update is available here. Uncompress and run it in a PC with Windows (emulated Windows not supported).''
+
'''''NOTE''': You will need to '''update your firmware''' to play mp3. The update is available [https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/240150B15SIM5218E_HY.rar here]. Uncompress and run it in a PC with Windows (emulated Windows not supported).''
  
 
A voice call can be recorded using these same commands too.
 
A voice call can be recorded using these same commands too.
Line 678: Line 709:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 
*
 
*
 
*  Version 0.1
 
*  Version 0.1
−
*  Author: Alejandro Gállego
 
 
*/
 
*/
  
Line 768: Line 804:
 
<syntaxhighlight lang="c">
 
<syntaxhighlight lang="c">
 
/*
 
/*
−
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 
−
*  http://www.libelium.com
 
−
*
 
 
*  This program is free software: you can redistribute it and/or modify
 
*  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
 
*  it under the terms of the GNU General Public License as published by
Line 783: Line 816:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
−
*
+
 
 +
* Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 
*  Version 0.1
 
*  Version 0.1
 
*  Author: Alejandro Gállego
 
*  Author: Alejandro Gállego
 +
 +
*  Version 0.1
 
*/
 
*/
  
Line 876: Line 913:
 
*  You should have received a copy of the GNU General Public License
 
*  You should have received a copy of the GNU General Public License
 
*  along with this program.  If not, see .
 
*  along with this program.  If not, see .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 
*
 
*
 
*  Version 0.1
 
*  Version 0.1
−
*  Author: Alejandro Gállego
 
 
*/
 
*/
  
Line 995: Line 1,037:
 
| Ends a video call.
 
| Ends a video call.
 
|}
 
|}
 +
 +
== GPS ==
 +
 +
SIM5218 supports both A-GPS and S-GPS and provides three operating modes: mobile-assisted mode, mobile-based mode and standalone mode. A-GPS is include mobile-assisted and mobile-based mode.
 +
 +
In mobile-assisted mode, when a request for position location is issued, available network information is provided to the location server (e.g., Cell-ID) and assistance is requested from the location server. The location server sends the assistance information to the handset. The handset/mobile unit measures the GPS observables and provides the GPS measurements along with available network data (that is appropriate for the given air interface technology) to the location server. The location server then calculates the position location and returns results to the requesting entity.
 +
 +
In mobile-based mode, the assistance data provided by the location server encompasses not only the information required to assist the handset in measuring the satellite signals, but also the information required to calculate the handset’s position. Therefore, rather than provide the GPS measurements and available network data back to the location server, the mobile calculates the location on the handset and passes the result to the requesting entity.
 +
 +
In standalone (autonomous) mode, the handset demodulates the data directly from the GPS satellites. This mode has some reduced cold-start sensitivity, and a longer time to first fix as compared to the assisted modes. However, it requires no server interaction and works out of network coverage.
 +
 +
This combination of GPS measurements and available network information provides:
 +
*High-sensitivity solution that works in all terrains: indoor, outdoor, urban, and rural
 +
*High availability that is enabled by using both satellite and network information
 +
 +
Therefore, while network solutions typically perform poorly in rural areas and areas of poor cell geometry/density, and while unassisted, GPS-only solutions typically perform poorly indoors, the SIM5218 GPS solution provides optimal time to fix, accuracy, sensitivity, availability, and reduced network utilization in both of these environments, depending on the given condition.
 +
 +
=== Stand-alone mode ===
 +
In this mode, the GPS obtains position, altitude,... with only the signal of the satellites, making it the slowest of the three modes. If you use the AT+CGPSINFO command, the module bring directly latitud, logitude, date, UTC time, altitude and speed. Here is the example code:
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[255];
 +
char latitude[11],longitude[12];
 +
char date[6],UTC_time[8];
 +
char speed_OG[6],altitude[6];
 +
 +
int x,y;
 +
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGPS=1,1");        // starts GPS session in stand-alone mode
 +
    delay(100);
 +
}
 +
 +
void loop(){
 +
 +
    delay(5000);
 +
    Serial.println("AT+CGPSINFO"); // request GPS info
 +
    Serial.flush();
 +
   
 +
    x=0;
 +
    do{
 +
        do{
 +
            digitalWrite(led,HIGH); 
 +
        }
 +
        while(Serial.available()==0);
 +
        digitalWrite(led,LOW);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(Serial.read()!='K');
 +
 +
    x=24;
 +
    y=0;
 +
    if(data[x]!=','){
 +
        Serial.print("Latitude: ");    //shows actual latitude
 +
        do{
 +
            latitude[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
        Serial.print(" ");
 +
        Serial.println(data[x]);    //north or south
 +
 +
        x+=2;
 +
        y=0;
 +
        Serial.print("Longitude: ");    //shows actual longitude
 +
        do{
 +
            longitude[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
        Serial.print(" ");
 +
        Serial.println(data[x]);    //west or east
 +
 +
        x+=2;
 +
        y=0;
 +
        Serial.print("Date: ");    //shows date
 +
        do{
 +
            date[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("\r\nUTC time: ");    //shows UTC time
 +
        do{
 +
            UTC_time[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("\r\nAltitude: ");    //shows altitude
 +
        do{
 +
            UTC_time[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        Serial.println(" m");
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("Speed: ");    //shows speed
 +
        do{
 +
            speed_OG[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=0x0D);
 +
        Serial.println(" knots");
 +
    }
 +
    else{
 +
        Serial.println("GPS information not available, please wait...");
 +
    } 
 +
 +
}
 +
</syntaxhighlight>
 +
 +
If you want to get the NMEA sentences, you must to use the command AT+CGPSSWITCH=1 and configure the UART port at 57600 bauds. Supported NMEA sentences include GSV, GGA, RMC, GSA, and VTG.
 +
 +
=== S-GPS Mode ===
 +
For the S-GPS the module connects to a GPS server and the module calculates the position. Here is the example code:
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[255];
 +
char latitude[11],longitude[12];
 +
char date[6],UTC_time[8];
 +
char speed_OG[6],altitude[6];
 +
 +
int x,y;
 +
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
  Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!check_response("OK"));
 +
 +
    Serial.println("AT+CGPSURL=\"supl.google.com:7276\"");        // sets GPS server
 +
    delay(100); 
 +
    while(Serial.read()!='K');
 +
 +
    Serial.println("AT+CGPSSSL=0");        // without certificate
 +
    delay(100); 
 +
    while(Serial.read()!='K');
 +
 +
    Serial.println("AT+CGPS=1,2");        // starts GPS session in based mode
 +
    delay(100); 
 +
    while(Serial.read()!='K');       
 +
}
 +
 +
void loop(){
 +
 +
    delay(5000);
 +
    Serial.println("AT+CGPSINFO"); // request GPS info
 +
    Serial.flush();
 +
    for (x=0;x< 255;x++){           
 +
        data[x]='\0';                       
 +
    }
 +
    x=0;
 +
    do{
 +
        do{
 +
            digitalWrite(led,HIGH); 
 +
        }
 +
        while(Serial.available()==0);
 +
        digitalWrite(led,LOW);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(Serial.read()!='K');
 +
 +
    x=24;
 +
    y=0;
 +
    if(data[x]!=','){
 +
        Serial.print("Latitude: ");    //shows actual latitude
 +
        do{
 +
            latitude[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
            if(y==2){
 +
                Serial.print(0xF8);
 +
            }
 +
 +
            if(y==4){
 +
                Serial.print(".");
 +
            }
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
        Serial.print(" ");
 +
        Serial.println(data[x]);    //north or south
 +
 +
        x+=2;
 +
        y=0;
 +
        Serial.print("Longitude: ");    //shows actual longitude
 +
        do{
 +
            longitude[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
            if(y==3){
 +
                Serial.print(0xF8);
 +
            }
 +
 +
            if(y==5){
 +
                Serial.print(".");
 +
            }       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
        Serial.print(" ");
 +
        Serial.println(data[x]);    //west or east
 +
 +
        x+=2;
 +
        y=0;
 +
        Serial.print("Date: ");    //shows date
 +
        do{
 +
            date[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("\r\nUTC time: ");    //shows UTC time
 +
        do{
 +
            UTC_time[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("\r\nAltitude: ");    //shows altitude
 +
        do{
 +
            UTC_time[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=',');
 +
        Serial.println(" m");
 +
        x++;
 +
 +
        y=0;
 +
        Serial.print("Speed: ");    //shows speed
 +
        do{
 +
            speed_OG[y]=data[x];
 +
            Serial.print(data[x]);
 +
            y++;
 +
            x++;       
 +
        }
 +
        while(data[x]!=0x0D);
 +
        Serial.println(" knots");
 +
    }
 +
    else{
 +
        Serial.println("GPS information not available, please wait...");
 +
    } 
 +
 +
}
 +
</syntaxhighlight>
 +
 +
=== A-GPS Mode ===
 +
For the A-GPS the module connects to a GPS server for calculate the position. Here is the example code:
 +
 +
{|class="wikitable" border="1"
 +
|-
 +
! MS-assisted
 +
! Server
 +
! Module
 +
|-
 +
| Location server sends aiding data that is valid for the current fix
 +
| Sending Data
 +
|
 +
|-
 +
| Module sends code phases
 +
|
 +
| Code phases
 +
|-
 +
| Server calculates position
 +
| Calculate position
 +
|
 +
|-
 +
! MS-based
 +
! Server
 +
! Module
 +
|-
 +
| Location server sends aiding data that is valid for the current fix
 +
| Send aiding data
 +
|
 +
|-
 +
| Module calculates
 +
|
 +
| Calculate position
 +
|-
 +
! Stand alone
 +
! Server
 +
! Module
 +
|-
 +
| Module demodulates data form GPS satellite
 +
|
 +
|Demodulates GPS satellite data
 +
|-
 +
| Module calculates position
 +
|
 +
| Calculate position
 +
|}
 +
 +
=== GPS Units ===
 +
The command AT+CGPSINFO returns the GPS info in a string:
 +
 +
+CGPSINFO: [<latitude>],[<N/S>],[<longitude>],[<E/W>],[<date>],[<UTC_time>],[<altitude>],[<speedOG>],[<course>]
 +
 +
{|class="wikitable" border="1"
 +
|-
 +
! Values
 +
! Format
 +
! Example
 +
|-
 +
| latitude
 +
| ddmm.mmmmmm     
 +
d: degree; m: minute
 +
| 4140.831527
 +
|-
 +
| longitude
 +
| dddmm.mmmmmm     
 +
d: degree; m: minute
 +
| 00053.173495
 +
|-
 +
| data
 +
| ddmmyy   
 +
d: day; m: month; y: year
 +
| 020812
 +
|-
 +
| altitude
 +
| meters
 +
| 257.00
 +
|-
 +
| speedOG
 +
| knots
 +
| 2
 +
|-
 +
| course
 +
| degrees
 +
| 0
 +
|}
 +
 +
If UE-assisted mode, when fixed will report indication:
 +
 +
+CAGPSINFO:<latitude>,<longitude>,<altitude>,<date>,<UTC_time>
 +
 +
{|class="wikitable" border="1"
 +
|-
 +
! Values
 +
! Format
 +
! Example
 +
|-
 +
| latitude
 +
| Unit is in 10^8 degree
 +
| 4168050885
 +
|-
 +
| longitude
 +
| Unit is in 10^8 degree
 +
| 88618039
 +
|-
 +
| altitude
 +
| meters
 +
| 293
 +
|-
 +
| date
 +
| ddmmyyyy     
 +
d: day; m: month; y: year
 +
| 28092012
 +
|-
 +
| UTC_time
 +
| hhmmss.s     
 +
h: hour; m: minute; s: seconds
 +
| 081611.0
 +
|}
 +
 +
=== Command Summary ===
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+CGSOCKCONT=**,&&&
 +
| OK
 +
| ** is the protocol and &&& Access Point Name.
 +
|-
 +
| AT+CGPS=*,&
 +
| OK
 +
| * sets on (1) or off (0) and & is the GPS mode.
 +
|-
 +
| AT+CGPSINFO
 +
|
 +
| Gets current position information.
 +
|-
 +
| AT+CGPSURL=”***”
 +
| OK
 +
| Sets AGPS default server URL . *** is the URL.
 +
|-
 +
| AT+CGPSSSL=*
 +
| OK
 +
| Select transport security, used certificate (*=1) or not (*=0).
 +
|-
 +
| AT+CGPSSWITCH
 +
| OK
 +
| Choose the output port for NMEA sentence.
 +
|}
 +
 +
== SMS ==
 +
=== Sending and Receiving SMS ===
 +
The first code is used to send a SMS, the second one reads the SIM message memory and shows the last SMS.
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int timesToSend = 1;        // Numbers of SMS to send
 +
int count = 0;
 +
 +
char phone_number[]="*********";    // ********* is the number to call
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CMGF=1");        // sets the SMS mode to text
 +
    delay(100);
 +
}
 +
 +
void loop(){
 +
 +
    while (count < timesToSend){
 +
        delay(1500);
 +
        Serial.print("AT+CMGS=\"");  // send the SMS number
 +
        Serial.print(phone_number);
 +
    Serial.println("\"");
 +
        delay(1500);     
 +
        Serial.print("Hola caracola...");    // the SMS body
 +
        delay(500);
 +
        Serial.write(0x1A);      //sends ++
 +
        Serial.write(0x0D);
 +
        Serial.write(0x0A);
 +
 +
        delay(5000);
 +
 +
        count++;
 +
    }
 +
 +
}
 +
</syntaxhighlight>
 +
 +
another code
 +
<syntaxhighlight lang="c">
 +
*
 +
*  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/.
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int timesToSend = 1;        // Numbers of SMS to send
 +
int count = 0;
 +
 +
int n_sms,x,sms_start;
 +
char data[256];
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i = 0;i < 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CMGF=1");        // sets the SMS mode to text
 +
    delay(100);
 +
    x = 0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;     
 +
 +
    }
 +
    while(!((data[x-1] == 'K') && (data[x-2] == 'O')));
 +
}
 +
 +
void loop(){
 +
 +
    while (count < timesToSend){
 +
        delay(1500);
 +
 +
        while(Serial.available()!=0) Serial.read();
 +
 +
        Serial.println("AT+CPMS=\"SM\",\"SM\",\"SM\"");    //selects SIM memory
 +
        Serial.flush();
 +
        for (x=0;x < 255;x++){           
 +
            data[x]='\0';                       
 +
        }
 +
        x=0;
 +
        do{
 +
            while(Serial.available()==0);
 +
            data[x]=Serial.read(); 
 +
            x++;     
 +
 +
        }while(!((data[x-1] == 'K') && (data[x-2] == 'O')));
 +
 +
        x=0;
 +
        do{
 +
            x++;
 +
        }while (data[x] != ' ');
 +
 +
        x++;
 +
        n_sms=0;
 +
        do{
 +
            n_sms*=10;
 +
            n_sms=n_sms + (data[x]-0x30);
 +
 +
            x++;
 +
 +
        }while (data[x] != ',');
 +
       
 +
        Serial.print(" ");
 +
        Serial.print(n_sms,DEC);
 +
 +
// Now it shows the total number of SMS and the last SMS
 +
        Serial.println("  SMS stored in SIM memory. Showing last SMS:");
 +
 +
        Serial.print("AT+CMGR=");    //Reads the last SMS
 +
        Serial.println(n_sms-1,DEC);
 +
        Serial.flush();
 +
        for (x=0;x < 255;x++){           
 +
            data[x]='\0';                       
 +
        }
 +
        x=0;
 +
        do{
 +
            while(Serial.available()==0);
 +
            data[x]=Serial.read(); 
 +
            x++;         
 +
            if((data[x-1] == 0x0D) && (data[x-2] == '"')){
 +
                x=0;
 +
            }
 +
        }
 +
        while(!((data[x-1] == 'K') && (data[x-2] == 'O')));
 +
 +
        data[x-3]='\0';        //finish the string before the OK
 +
 +
        Serial.println(data);    //shows the message
 +
 +
        delay(5000);
 +
 +
        count++;
 +
    }
 +
}
 +
</syntaxhighlight>
 +
 +
=== Command Summary ===
 +
{|class="wikitable" border="1">
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+CMGF=
 +
| OK
 +
| Specifies the input and output format of the short messages. 0 for PDU mode and 1 for text mode.
 +
|-
 +
| AT+CMGS
 +
|
 +
| Sends a message.
 +
|-
 +
| AT+CPMS=***
 +
|
 +
| Selects memory storages. *** is the memory type.
 +
|-
 +
| AT+CMGR=*
 +
|
 +
| Reads a message. * is the number of the message.
 +
|}
 +
 +
== E-mails ==
 +
=== Sending an E-mail ===
 +
To send e-mail a SMTP server is used, so we need an e-mail account. The code example is the next:
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
int x;
 +
 +
//server and account data
 +
char server[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
char port[ ]="";
 +
 +
//information about sender, direcctions and names
 +
char sender_add[ ]="";
 +
char sender_name[ ]="";
 +
 +
char to_add[ ]="";
 +
char to_name[ ]="";
 +
 +
char cc_add[ ]="";
 +
char cc_name[ ]="";
 +
 +
char bcc_add[ ]="";
 +
char bcc_name[ ]="";
 +
 +
//
 +
char subject[ ]="";
 +
char body[ ]="";
 +
 +
char response[128];
 +
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
}
 +
 +
 +
void loop(){
 +
 +
    Serial.print("AT+SMTPSRV=\"");   
 +
    //configures the SIM5218 with server name and port
 +
    Serial.print(server);
 +
    Serial.print("\",");
 +
    Serial.println(port);
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
    Serial.print("AT+SMTPAUTH=1,\"");    //configures the SIM5218 with user name and password
 +
    Serial.print(user_name);
 +
    Serial.print("\",\"");
 +
    Serial.print(password);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
 +
    Serial.print("AT+SMTPFROM=\"");    //sender adress and name
 +
    Serial.print(sender_add);
 +
    Serial.print("\",\"");
 +
    Serial.print(sender_name);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
 +
    Serial.print("AT+SMTPRCPT=0,0,\"");    //normal recipient address and name
 +
    Serial.print(to_add);
 +
    Serial.print("\",\"");
 +
    Serial.print(to_name);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
    //If you don't need a carbon copy, delete this part
 +
    Serial.print("AT+SMTPRCPT=1,0,\"");    //carbon copy recipient address and name
 +
    Serial.print(cc_add);
 +
    Serial.print("\",\"");
 +
    Serial.print(cc_name);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
    //If you don't need a blind carbon copy, delete this part
 +
    Serial.print("AT+SMTPRCPT=2,0,\"");    //blind carbon copy recipient address and name
 +
    Serial.print(bcc_add);
 +
    Serial.print("\",\"");
 +
    Serial.print(bcc_name);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
 +
    Serial.print("AT+SMTPSUB=\"");    //subjec of email
 +
    Serial.print(subject);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
 +
    Serial.print("AT+SMTPBODY=\"");    //body of email
 +
    Serial.print(body);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));   
 +
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
 +
    Serial.println("AT+SMTPSEND");    //sends the email
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        response[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(response[x-1]=='K'&&response[x-2]=='O'));
 +
 +
    Serial.print("Sending email...");
 +
 +
    x=0;
 +
    do{
 +
        do{
 +
            digitalWrite(led,HIGH);   
 +
        }
 +
        while(Serial.available()==0);
 +
        digitalWrite(led,LOW);   
 +
        response[x]=Serial.read(); 
 +
        x++;
 +
    }
 +
    while(!(response[x-1]=='S'&&response[x-2]=='S'));
 +
 +
    Serial.println(response);
 +
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
=== Receiving an E-mail ===
 +
For read an e-mail from a POP3 server we need an e-mail account. The code example is here:
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
int x;
 +
 +
//server and account data
 +
char server[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
char port[ ]="";
 +
 +
 +
char data[1024];
 +
char path[50];
 +
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
}
 +
 +
void loop(){
 +
 +
    Serial.print("AT+POP3SRV=\"");   
 +
    //configures the SIM5218 with server name, user, password and port
 +
    Serial.print(server);
 +
    Serial.print("\",\"");
 +
    Serial.print(user_name);
 +
    Serial.print("\",\"");
 +
    Serial.print(password);
 +
    Serial.print("\",");
 +
    Serial.println(port);
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }
 +
    while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+POP3IN");    //logs into the server
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+POP3GET=1");    //gets the first email
 +
    Serial.flush();
 +
 +
    do{
 +
        while(Serial.available()==0);
 +
        path[0]=Serial.read();
 +
    }while(path[0]!='/');
 +
 +
    do{
 +
        while(Serial.available()==0);
 +
        path[0]=Serial.read(); 
 +
    }
 +
    while(path[0]!='/');
 +
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        path[x]=Serial.read();
 +
        x++;                       
 +
    }while(path[x-1]!=' ');
 +
 +
    x--;    //overwrite " " charracter
 +
    x--;    //overwrite "," charracter
 +
 +
    do{
 +
        while(Serial.available()==0);
 +
        path[x]=Serial.read();
 +
        x++;                       
 +
    }while(path[x-1]!=0x0D);
 +
    path[x-1]='\0';
 +
 +
 +
    Serial.println("AT+POP3OUT");    //logs out the server
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+FSCD=C:/Email");    //selects email directory as current directory
 +
    Serial.flush();
 +
   
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+POP3READ=0,\"");    //shows the email
 +
    Serial.print(path);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[0]=Serial.read();       
 +
    }while(data[0]!='D');
 +
   
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[0]=Serial.read();       
 +
    }while(data[0]!='D');
 +
   
 +
    x=1;   
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
        if(x==1020){
 +
            Serial.print(data);
 +
            x=0;
 +
        }       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'&&data[x-3]==0x0A&&data[x-4]==0x0D));
 +
 +
    data[x-2]='\0';
 +
    Serial.println(data);
 +
   
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
=== Command Summary ===
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+CGSOCKCONT=**,&&&
 +
| OK
 +
| ** is the protocol and &&& Access Point Name.
 +
|-
 +
| AT+SMTPSRV=”*****”,&&&
 +
| OK
 +
| Sets SMTP server address and server’s port . ***** is the sever address and &&& is the server's port.
 +
|-
 +
| AT+SMTPAUTH=1,”***”,”&&&”
 +
| OK
 +
| Controls SMTP authentication. *** is the user name and &&& is the password.
 +
|-
 +
| AT+SMTPFROM=”***”,”&&&”
 +
| OK
 +
| Sets sender’s address and nam e. *** is the sender's address and &&& is the sender's name.
 +
|-
 +
| AT+SMTPRCPT=x,”***”,”&&&”
 +
| OK
 +
| Sets recipient address/name and kind .
 +
x is the kind (TO/CC/BCC), *** is the recipient address and &&& is the recipient name.
 +
|-
 +
| AT+SMTPSUB=”****”
 +
| OK
 +
| Sets the subject of e-mail . **** is the subject.
 +
|-
 +
| AT+SMTPBODY
 +
|
 +
| Sets e-mail body.
 +
|-
 +
| AT+SMTPSEND
 +
|
 +
| Initiates TCP session with SMTP server and sends an e-mail
 +
|-
 +
| AT+POP3SRV=”**”,”&&”,”xx”,yy
 +
| OK
 +
| Sets all parameters to get an e-mail from POP3 . ** is the server address, && is the user name,
 +
xx is the password and yy the server port
 +
|-
 +
| AT+POP3IN
 +
| OK
 +
| Logs in POP3 server
 +
|-
 +
| AT+POP3GET=***
 +
|
 +
| Gets an e-mail from POP3 server , *** is the number of the e-mail.
 +
|-
 +
| AT+POP3OUT
 +
| OK
 +
| Logs out POP3 server
 +
|-
 +
| AT+POP3READ=”***”,”&&&”
 +
|
 +
| Reads an e-mail from file system . *** is the location and &&& is the name.
 +
|}
 +
 +
== SD and system memory ==
 +
The file system is used to store files in a hierarchical (tree) structure. Local storage space is mapped to “C:”, and SD is mapped to “D:”. In both “C:” and “D:” directories, module creates four directories named “Picture”, “Audio”, “Video” and “VideoCall” automatically; “Picture” is used to store static image when taking picture by camera, “Audio” is used to store audio file, “Video” is used to store video file when recor ding by camera, and “VideoCall” is used to store media file which is recorded during a video call.
 +
 +
The maximum size of the microSD card is 32GB. Here are some AT commands to manage the file system:
 +
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+FSCD=****
 +
| OK
 +
| Select a directory as current directory . **** is the directory.
 +
|-
 +
| AT+FSMKDIR=****
 +
| OK
 +
| Create a new directory in current directory . **** is the name of the new directory.
 +
|-
 +
| AT+FSRMDIR=****
 +
| OK
 +
| Delete existing directory in current directory . **** is the name of the directory to delete.
 +
|-
 +
| AT+FSLS
 +
|
 +
| Make a list with informations of directories and/or files in current directory.
 +
|-
 +
| AT+DEL=****
 +
| OK
 +
| Delete a file in current directory. **** is the name of the file to delete.
 +
|-
 +
| AT+FSRENAME=****,&&&
 +
| OK
 +
| Rename a file in current directory. **** is the actual name and &&& is the new name.
 +
|-
 +
| AT+FSATTRI=****
 +
|
 +
| Request the attributes of file which is existing in current directory. **** is the name of the file.
 +
|-
 +
| AT+FSMEM
 +
|
 +
| Check the size of available memory.
 +
|-
 +
| AT+FSFMT
 +
| OK
 +
| Format storage card which is plugged in.
 +
|-
 +
| AT+FSLOCA=
 +
| OK
 +
| Set the storage place , 0 for local and 1 for SD
 +
|}
 +
 +
== FTP and FTPS ==
 +
=== FTP ===
 +
Creating a file into the FTP server, writing it and reading it.
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
*
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[1024];
 +
int x=0;
 +
int file_size;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 +
  Serial.print(server);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPORT=");    //Sets FTP port
 +
  Serial.println(port);
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPUN=\""); //Sets the user name
 +
  Serial.print(user_name);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPW=\""); //Sets password
 +
  Serial.print(password);
 +
  Serial.println("\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPPUT=\"/test.txt\"");    //Creates a file and sends data (ASCII)
 +
    Serial.flush();
 +
    while(Serial.read()]!='N');    //Waits 'N' from BEGIN
 +
 +
    Serial.println("01234567890123456789");    //Data for the file
 +
    Serial.write(0x1A);    //EOL character
 +
    Serial.write(0x0D);
 +
    Serial.write(0x0A);
 +
 +
    x=0;
 +
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
 +
    delay(1000);
 +
 +
    Serial.println("AT+CFTPGET=\"/test.txt\"");    //Reads the data from test file
 +
    Serial.flush();
 +
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while((data[x-1]!=','));
 +
 +
    x=0;
 +
   
 +
    while(Serial.peek()!=0x0A){
 +
        file_size=(file_size*10)+(Serial.read()-0x30);
 +
    };
 +
 +
    for(x=0;x< file_size;x++){
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
    }
 +
   
 +
    Serial.print(data);
 +
 +
    while(1);
 +
 +
 +
}
 +
</syntaxhighlight>
 +
 +
Uploading a file from local storage or SD to FTP server.
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[256];
 +
int x=0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 +
  Serial.print(server);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPORT=");    //Sets FTP port
 +
  Serial.println(port);
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPUN=\""); //Sets the user name
 +
  Serial.print(user_name);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPW=\""); //Sets password
 +
  Serial.print(password);
 +
  Serial.println("\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    //Selecciona el tipo ASCII
 +
    Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
   
 +
    Serial.println("AT+CFTPPUTFILE=\"/testfile.txt\",0");    //Uploads a test file into FTP server.
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    while(1);
 +
 +
}
 +
</syntaxhighlight>
 +
 +
Downloading a file from FTP server or SD to local storage.
 +
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[1024];
 +
int x=0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\""); 
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 +
  Serial.print(server);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPORT=");    //Sets FTP port
 +
  Serial.println(port);
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPUN=\""); //Sets the user name
 +
  Serial.print(user_name);
 +
  Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPPW=\""); //Sets password
 +
  Serial.print(password);
 +
  Serial.println("\"");   
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    //Selecciona el tipo ASCII
 +
    Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O')); 
 +
 +
 +
    //Envia data
 +
    Serial.println("AT+CFTPGETFILE=\"/testfile.txt\",0");  //Downloads a test file from FTP server.
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    while(1);
 +
 +
}
 +
</syntaxhighlight>
 +
 +
=== FTPS ===
 +
Creating a file into the FTP server, writing it and reading it (likes FTP codes)
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
*
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[1024];
 +
int x=0;
 +
unsigned int file_size=0;
 +
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for(int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
 +
    Serial.print(server);
 +
    Serial.print("\",");
 +
    Serial.print(port);
 +
    Serial.print(",\"");
 +
    Serial.print(user_name);
 +
    Serial.print("\",\"");
 +
    Serial.print(password);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
   
 +
    Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
  //Envia data
 +
    Serial.println("AT+CFTPSPUT=\"/test_file.txt\",13");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(data[x-1]!='>');
 +
   
 +
    Serial.write("Test message!");
 +
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        digitalWrite(13, LOW);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    delay(1000);
 +
   
 +
    Serial.println("AT+CFTPSGET=\"/test.txt\"");    //Reads the data from test file
 +
    Serial.flush();
 +
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while((data[x-1]!=','));
 +
 +
    x=0;
 +
   
 +
    while(Serial.peek()!=0x0A){
 +
        file_size=(file_size*10)+(Serial.read()-0x30);
 +
    };
 +
 +
    for(x=0;x< file_size;x++){
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read();
 +
    }
 +
   
 +
    Serial.print(data);
 +
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
Uploading a file from local storage or SD to FTP server
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
*
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[256];
 +
int x=0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // swithes the module ON
 +
 +
    for(int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
 +
    Serial.print(server);
 +
    Serial.print("\",");
 +
    Serial.print(port);
 +
    Serial.print(",\"");
 +
    Serial.print(user_name);
 +
    Serial.print("\",\"");
 +
    Serial.print(password);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    //Envia data
 +
    Serial.println("AT+CFTPSPUTFILE=\"/testfile.txt\",0"); //Uploads a test file from FTPS server.
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        digitalWrite(13, LOW);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
Downloading a file from FTP server or SD to local storage
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
char data[256];
 +
int x=0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
char user_name[ ]="";
 +
char password[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for(int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
 +
    Serial.print(server);
 +
    Serial.print("\",");
 +
    Serial.print(port);
 +
    Serial.print(",\"");
 +
    Serial.print(user_name);
 +
    Serial.print("\",\"");
 +
    Serial.print(password);
 +
    Serial.println("\"");
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    //Envia data
 +
    Serial.println("AT+CFTPSGETFILE=\"/testfile.txt\",0"); //Downloads a test file from FTPS server.
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        digitalWrite(13, LOW);
 +
        data[x]=Serial.read();
 +
        x++; 
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
=== Command and Summary ===
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+CGSOCKCONT=**,&&&
 +
| OK
 +
| ** is the protocol and &&& Access Point Name.
 +
|-
 +
| AT+CFTPSERV=”****”
 +
|
 +
| Sets FTP server domain name or IP address. **** is the domain name or the IP.
 +
|-
 +
| AT+CFTPPORT=***
 +
| OK
 +
| Sets FTP server port. *** is the port.
 +
|-
 +
| AT+CFTPUN=”***”
 +
| OK
 +
| Sets user name for FTP server access. *** is the user name.
 +
|-
 +
| AT+CFTPPW=”***”
 +
| OK
 +
| Sets password for FTP server access. *** is the password.
 +
|-
 +
| AT+CFTPMODE=
 +
| OK
 +
| Sets FTP mode. 1 for passive or 0 for proactive.
 +
|-
 +
| AT+CFTPTYPE=
 +
| OK
 +
| Sets the transfer type on FTP server . A for ASCII or I for binary.
 +
|-
 +
| AT+CFTPPUT=”***”,&&
 +
|
 +
| Puts a file from FTP server to serial port . *** is the path with the name of the file and && is the length.
 +
|-
 +
| AT+CFTPGET=”***”
 +
|
 +
| Gets a file from FTP server to serial port . *** is the path with the name of the file.
 +
|-
 +
| AT+CFTPPUTFILE=”***”,&
 +
|
 +
| Uploads a file to FTP server from module . *** is the path and & is the storage directory.
 +
|-
 +
| AT+CFTPGETFILE”=***”,&
 +
|
 +
| Downloads a file from FTP server to module . *** is the path with the name and & is the storage directory.
 +
|-
 +
| AT+CFTPSSTART
 +
| OK
 +
| Acquires FTPS protocol stack.
 +
|-
 +
| AT+CFTPSLOGIN=”**”,&&&,”xxx”,”yyy
 +
| OK
 +
| Logs in FTPS server. *** is the host address, &&& is the port, xxx is the user name and yyy is the password.
 +
|-
 +
| AT+CFTPSTYPE=
 +
| OK
 +
| Sets the transfer type on FTPS server . A for ASCII or I for binary.
 +
|-
 +
| AT+CFTPSPUT=”***”,&&
 +
|
 +
| Puts a file from FTPS server to serial port . *** is the path with the name of the file and && is the length.
 +
|-
 +
| AT+CFTPSGET=”***”
 +
|
 +
| Gets a file from FTPS server to serial port . *** is the path with the name of the file.
 +
|-
 +
| AT+CFTPSPUTFILE=”***”,&
 +
|
 +
| Uploads a file to FTPS server from module . *** is the path and & is the storage directory.
 +
|-
 +
| AT+CFTPSGETFILE=”***”,&
 +
|
 +
| Downloads a file from FTPS server to module . *** is the path with the name and & is the storage directory.
 +
|}
 +
 +
== TCP and UDP ==
 +
=== UDP client ===
 +
Sending data to a UDP server:
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char name[20];
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+NETOPEN=\"UDP\","); //Opens the socket with the type of protocol and the port
 +
  Serial.println(port);       
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
 +
 +
    Serial.print("AT+UDPSEND=12,\""); //Sends UDP data
 +
  Serial.print(server);
 +
  Serial.print("\",");
 +
  Serial.println(port);       
 +
    Serial.flush();
 +
    while(Serial.read()!='>'); 
 +
 +
    Serial.println("Test message");
 +
 +
 +
    Serial.println("AT+NETCLOSE"); //Opens the socket with the type of protocol and the port
 +
    Serial.flush();
 +
    while(Serial.read()!='K');
 +
 +
    while(1);
 +
}
 +
</syntaxhighlight>
 +
 +
=== TCP Client ===
 +
Sending data to a TCP server:
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char name[20];
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
   
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+NETOPEN=\"TCP\",");
 +
    //Opens the socket with the type of protocol and the port
 +
  Serial.println(port);       
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
 +
   
 +
    Serial.print("AT+TCPCONNECT=\""); //Connects with the server
 +
  Serial.print(server);
 +
  Serial.print("\",");   
 +
  Serial.println(port);
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
 +
    Serial.println("AT+TCPWRITE=12");        //Sends TCP data
 +
    Serial.flush();
 +
    while(Serial.read()!='>'); 
 +
 +
    Serial.println("Test message");
 +
   
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
 +
    Serial.println("AT+NETCLOSE"); //Opens the socket with the type of protocol and the port
 +
    Serial.flush();
 +
    while(Serial.read()!='K');
 +
 +
    while(1);
 +
   
 +
}
 +
</syntaxhighlight>
 +
 +
=== Multiclient ===
 +
SIM5218 allows to use ten connections simultaneously. Here is the example code with a UDP and TCP connections.
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char UDP_server[ ]="";
 +
char UDP_port[ ]="";
 +
char TCP_server[ ]="";
 +
char TCP_port[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
   
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.println("AT+NETOPEN=,,1");        //Opens the socket in multiclient mode
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
 +
   
 +
    Serial.println("AT+CIPOPEN=0,\"UDP\",\"");  //Connects with the UDP server
 +
  Serial.print(UDP_server);
 +
  Serial.print("\",");
 +
  Serial.println(UDP_port);   
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
    Serial.println("AT+CIPOPEN=1,\"TCP\",\"");  //Connects with the TCP server
 +
  Serial.print(TCP_server);
 +
  Serial.print("\",");
 +
  Serial.println(TCP_port);   
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
 +
    Serial.println("AT+CIPSEND=0,16");    //Sends data to UDP server
 +
    Serial.flush();
 +
    while(Serial.read()!='>'); 
 +
 +
    Serial.println("UDP test message");
 +
   
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
   
 +
    Serial.println("AT+CIPSEND=1,16");    //Sends data to TCP server
 +
    Serial.flush();
 +
    while(Serial.read()!='>'); 
 +
 +
    Serial.println("TCP test message");
 +
   
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++;                       
 +
    }while(!(data[x-1]=='K'&&data[x-2]=='O'));
 +
   
 +
    Serial.println("AT+CIPCLOSE=0");    //Closes UDP connection
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
    Serial.println("AT+CIPCLOSE=1");    //Closes TCP connection
 +
    Serial.flush();
 +
    while(Serial.read()!='K');
 +
 +
    Serial.println("AT+NETCLOSE");        //Opens the socket with the type of protocol and the port
 +
    Serial.flush();
 +
    while(Serial.read()!='K');
 +
 +
    while(1);
 +
   
 +
}
 +
</syntaxhighlight>
 +
 +
=== TCP Server ===
 +
SIM5218 allows to create a TCP server with a maximum of ten TCP clients. In this example the server send a message every 5 seconds to all clients.
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char name[20];
 +
 +
int clients=-2;
 +
char port[ ]="";
 +
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
   
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
 +
    Serial.print("AT+NETOPEN=\"TCP\","); 
 +
    //Opens the socket with the type of protocol and the port
 +
    Serial.println(port);       
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
 +
   
 +
    Serial.println("AT+SERVERSTART"); //Starts TCP server
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
}
 +
 +
void loop()
 +
{
 +
 +
   
 +
    Serial.println("AT+LISTCLIENT");  // List all of clients
 +
  Serial.flush();
 +
  clients=-2;
 +
  do{
 +
    if(Serial.read()==0x0D){
 +
      clients++;
 +
    }
 +
  }while(Serial.peek()!='K'));
 +
 +
 +
  for(int y=0;y< clients;y++){
 +
    Serial.print("AT+ACTCLIENT=");    //activates the connection with the client 
 +
    Serial.println(y);
 +
    while(Serial.read()!='K'));
 +
 +
    Serial.println("AT+TCPWRITE=12");        //Sends TCP data
 +
      Serial.flush();
 +
      while(Serial.read()!='>'); 
 +
 +
      Serial.println("Test message");
 +
   
 +
      x=0;
 +
      do{
 +
          while(Serial.available()==0);
 +
          data[x]=Serial.read(); 
 +
          x++;                       
 +
      }while(!(data[x-1]=='k'&&data[x-2]=='o'));    Waits for "send ok"
 +
 +
    Serial.print("AT+CLOSECLIENT="); //desactivates the connection with the client 
 +
    Serial.println(y);
 +
    while(Serial.read()!='K'));
 +
  }
 +
 +
  delay(5000);
 +
   
 +
}
 +
</syntaxhighlight>
 +
 +
=== Command and Summary ===
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+NETOPEN=”***”,&&
 +
|
 +
| Opens a socket . *** is the socket type and && is the port.
 +
|-
 +
| AT+NETCLOSE
 +
| OK
 +
| Closes socket.
 +
|-
 +
| AT+UPDSEND
 +
|
 +
| Sends UDP data.
 +
|-
 +
| | |
 +
|-
 +
| AT+TCPCONNECT=”***”,&&
 +
|
 +
| Establishes TCP connection with TCP server. *** is the IP address and && is the port.
 +
|-
 +
| AT+TCPWRITE
 +
|
 +
| Sends TCP data when the TCP connection is established.
 +
|-
 +
| AT+SERVERSTART
 +
| OK
 +
| Starts up TCP server.
 +
|-
 +
| AT+LISTCLIENT
 +
|
 +
| Lists all of clients’ information.
 +
|-
 +
| AT+ACTCLIENT=*
 +
| OK
 +
| Activates the specified client. * is the number of the client.
 +
|-
 +
| AT+CLOSECLIENT=*
 +
| OK
 +
| Disconnects the specified client. * is the number of the client.
 +
|-
 +
| | |
 +
|-
 +
| AT+CIPOPEN=*,”&&”,”xx”,yy
 +
|
 +
| Establish a connection with TCP server or UDP server. * is the number of the connection,
 +
&& is the type of transmision protocol, xx is the server IP and yy is the server port.
 +
|-
 +
| AT+CIPSEND
 +
|
 +
| Sends some data to remote host in mult-client mode.
 +
|-
 +
| AT+CIPCLOSE=*
 +
| OK
 +
| Closes a specified connection in multi-client mode. * is the number of the connection.
 +
|}
 +
 +
== HTTP and HTTPS ==
 +
=== HTTP ===
 +
SIM5218 can launch a HTTP operation like GET or POST. Here is an example with GET operation:
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 ..
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int data_size
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
   
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.print("AT+CHTTPACT=\""); //Connects with the HTTP server
 +
  Serial.print(server);
 +
  Serial.print("\",");
 +
  Serial.println(port);       
 +
    Serial.flush();
 +
    x=0;
 +
    do{
 +
        while(Serial.available()==0);
 +
        data[x]=Serial.read(); 
 +
        x++; 
 +
    }while(!(data[x-1]=='T'&&data[x-2]=='S'));        //waits for response "REQUEST"
 +
   
 +
    Serial.println("GET /index.html HTTP/1.1");
 +
  Serial.println("Host: www.mywebsite.com");
 +
  Serial.println("Content-Length: 0");
 +
  Serial.write(0x1A);      //sends ++
 +
    Serial.write(0x0D);
 +
    Serial.write(0x0A);
 +
 +
  while(Serial.read()!='K');
 +
  while(Serial.read()!=' ');
 +
 +
  data_size=0; 
 +
  do{
 +
    data_size*=10;
 +
    data_size=data_size+(Serial.read()-0x30);
 +
  }while(Serial.peek()!=0x0D);
 +
 +
  for(x=0;x< data_size;x++){
 +
    data[x]=Serial.read();
 +
  }
 +
 +
  Serial.print(data);
 +
 +
    while(1);
 +
   
 +
}
 +
</syntaxhighlight>
 +
 +
=== HTTPS ===
 +
<syntaxhighlight lang="c">
 +
/*
 +
*  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 .
 +
 +
*  Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
 +
*  http://www.libelium.com
 +
*  Version 0.1
 +
*  Author: Alejandro Gállego
 +
 +
*
 +
*  Version 0.1
 +
*/
 +
 +
 +
char data[1024];
 +
int data_size
 +
int led = 13;
 +
int onModulePin = 2;        // the pin to switch on the module (without press on button)
 +
 +
int x = 0;
 +
 +
char server[ ]="";
 +
char port[ ]="";
 +
void switchModule(){
 +
    digitalWrite(onModulePin,HIGH);
 +
    delay(2000);
 +
    digitalWrite(onModulePin,LOW);
 +
}
 +
 +
void setup(){
 +
 +
    Serial.begin(115200);                // UART baud rate
 +
    delay(2000);
 +
    pinMode(led, OUTPUT);
 +
    pinMode(onModulePin, OUTPUT);
 +
    switchModule();                    // switches the module ON
 +
 +
    for (int i=0;i< 5;i++){
 +
        delay(5000);
 +
    }
 +
   
 +
    Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
 +
    Serial.flush();
 +
    while(Serial.read()!='K'); 
 +
   
 +
}
 +
 +
void loop()
 +
{
 +
 +
    Serial.println("AT+CHTTPSSTART"); //Acquires HTTPS protocol stack     
 +
    Serial.flush();   
 +
  while(Serial.read()!='K');
 +
 +
  Serial.println("AT+CHTTPSOPSE");  //Opens a new HTTPS session 
 +
    Serial.flush();   
 +
  while(Serial.read()!='K');
 +
 +
  Serial.println("AT+CHTTPSSEND=63"); //Sends HTTPS request 
 +
    Serial.flush();   
 +
  while(Serial.read()!='>');
 +
   
 +
    Serial.println("GET /index.html HTTP/1.1");
 +
  Serial.println("Host: www.mywebsite.com");
 +
  Serial.println("Content-Length: 0");
 +
  while(Serial.read()!='K');
 +
 +
  Serial.println("AT+CHTTPSRECV=1");  //Receives HTTPS response
 +
    Serial.flush();   
 +
  while(Serial.read()!=',');
 +
 +
  data_size=0; 
 +
  do{
 +
    data_size*=10;
 +
    data_size=data_size+(Serial.read()-0x30);
 +
  }while(Serial.peek()!=0x0D);
 +
 +
  for(x=0;x< d ata_size;x++){
 +
    data[x]=Serial.read();
 +
  }
 +
 +
  Serial.println("AT+CHTTPSCLSE");  //Closes a new HTTPS session 
 +
    Serial.flush();   
 +
  while(Serial.read()!='K');
 +
 +
  Serial.println("AT+CHTTPSSTOP");  //Releases HTTPS protocol stack
 +
    Serial.flush();   
 +
  while(Serial.read()!='K');
 +
 +
  Serial.print(data);
 +
 +
 +
    while(1);
 +
   
 +
}
 +
</syntaxhighlight>
 +
 +
=== Command and Summary ===
 +
{|class="wikitable" border="1"
 +
|-
 +
! Command
 +
! Response
 +
! Description
 +
|-
 +
| AT+CHTTPACT=”***”,&&
 +
|
 +
| Launches a HTTP operation . *** is the server address and && is the port.
 +
|-
 +
| | | |
 +
|-
 +
| AT+CHTTPSSTART
 +
| OK
 +
| Acquires HTTPS protocol stack.
 +
|-
 +
| AT+CHTTPSSTOP
 +
| OK
 +
| Releases HTTPS protocol stack.
 +
|-
 +
| AT+CHTTPSOPSE
 +
| OK
 +
| Opens a new HTTPS session.
 +
|-
 +
| AT+CHTTPSCLSE
 +
| OK
 +
| Closes the opened HTTPS session.
 +
|-
 +
| AT+CHTTPSSEND=*
 +
|
 +
| Sends HTTPS request. * is the length of the data in the sending buffer.
 +
|-
 +
| AT+CHTTPSRECV=*
 +
|
 +
| Receives HTTPS response after sending HTTPS request.
 +
|}
 +
 +
'''AT Command Tester Application'''
 +
 +
[http://m2msupport.net/m2msupport/module-tester/ AT Command Tester] is a free online tool test [http://m2msupport.net/m2msupport/software-and-at-commands-for-m2m-modules/ AT Commands] and other modem functionalities of [http://m2msupport.net/m2msupport/category/devices/gprs-modem/ 2G modules] (GPRS/EDGE) , [http://m2msupport.net/m2msupport/category/devices/gprs-modem/ 3G Modules] (HSDPA/EVDO) and [http://m2msupport.net/m2msupport/search-page/?Max!Download!Speed=100%20Mbps 4G Modules] (LTE).AT Command Tester tool connects to the modem port of the device and can test various modem functions such as getting [http://m2msupport.net/m2msupport/at-commands-to-get-device-information/ device information], [http://m2msupport.net/m2msupport/data-call-at-commands-to-set-up-gprsedgeumtslte-data-call/ gprs data call], [http://m2msupport.net/m2msupport/voice-call-at-commands-to-set-up-voice-call/ voice call],[http://m2msupport.net/m2msupport/at-command-for-http-functions-for-remote-server-data-access/ http access], [http://m2msupport.net/m2msupport/signal-quality/ checking signal condition], [http://m2msupport.net/m2msupport/network-registration/ network registration], [http://m2msupport.net/m2msupport/sms-at-commands/ SMS functions], [http://m2msupport.net/m2msupport/sim-at-commands-for-sim-presense-and-status/ SIM access], [http://m2msupport.net/m2msupport/sim-phonebook-at-commands/ phonebook functions] etc.
 +
 +
In the 'Port Configuration' section of the tool, users can search for available ports using the 'Find Ports' button. Then using the 'Connect' button, users can connect to the modem port of the device.
 +
 +
In the 'Command Mode' tab of AT Command Tester, single AT commands can be sent. The drop down list provides AT command description and examples. Users can modify the default command settings.
 +
 +
[[File:M2m img1.PNG]]
 +
 +
 +
Under the 'Script Mode' tab, multiple AT commands can be sent at a time. Users can add descriptive comments and save the script on their local machine.
 +
 +
[[File:Script mode.PNG]]
 +
 +
Data Call
 +
 +
To make a data call with the modem, you need to connect to the APN of the carrier network. The carrier APN and other required information are stored in the SIM card and are referred as PDP contexts. Typically multiple PDP contexts are stored in the SIM for different call types. With the AT Command Tester you can edit/add/delete PDP contexts in a easy to use user interface.
 +
 +
[[Image:Datacall.PNG]]
 +
 +
 +
<br>Typical call setup sequence,
 +
 +
[http://m2msupport.net/m2msupport/atcgdcont-define-pdp-context/ AT+CGDCONT?]
 +
 +
+CGDCONT: 1,"IP","epc.tmobile.com","0.0.0.0",0,0<br>+CGDCONT: 2,"IP","test5","0.0.0.0",0,0<br>+CGDCONT: 3,"IP","","0.0.0.0",0,0
 +
 +
OK<br>Checking registration status...
 +
 +
[http://m2msupport.net/m2msupport/atcreg-network-registration/ AT+CREG?]
 +
 +
+CREG: 0,1
 +
 +
OK<br>The device is registered in home network.
 +
 +
Checking if device is already connected...
 +
 +
[http://m2msupport.net/m2msupport/atcgact-pdp-context-activate-or-deactivate/ AT+CGACT?]
 +
 +
+CGACT: 1,0<br>+CGACT: 2,0<br>+CGACT: 3,0
 +
 +
OK<br>[http://m2msupport.net/m2msupport/atcmee-report-mobile-termination-error/ AT+CMEE=1]
 +
 +
OK<br>Attaching to network...<br>AT+CGATT=1
 +
 +
OK
 +
 +
Connecting...
 +
 +
[http://m2msupport.net/m2msupport/atcgact-pdp-context-activate-or-deactivate/ AT+CGACT=1, 1]
 +
 +
OK<br>Connect Sucessful
 +
 +
<br> '''SMS'''
 +
 +
The SMS tab of the 'AT Command Tester' tool provides the interfaces to send SMS messages. You can also list/view/delete SMS messages stored on the SIM.
 +
 +
[[Image:Sms.PNG]] <br> General sequence for sending SMS message,
 +
 +
Checking registration status...
 +
 +
[http://m2msupport.net/m2msupport/atcreg-network-registration/ AT+CREG?]
 +
 +
+CREG: 0,1
 +
 +
OK<br>The device is registered in home network.
 +
 +
AT+CMGS="858XXXXXXX"
 +
 +
&gt; Test Message with AT Command Tester�
 +
 +
+CMGS: 19
 +
 +
OK<br>SMS Send successful
 +
 +
'''Network Selection''' - This tab allows the user to manually select available networks. Modems are typically set for automatic network selection. 'Find Networks' button will command the modem to scan for available networks.
 +
 +
[[Image:Network selection.PNG]]
 +
 +
<br>
 +
 +
AT+COPS command will initiate network scan in the modem,
 +
 +
Finding Networks. Please wait..
 +
 +
[http://m2msupport.net/m2msupport/atcops-plmn-selection/ AT+COPS=?]
 +
 +
+COPS: (2,"T-Mobile","T-Mobile","310260"),(1,"AT&amp;T","AT&amp;T","310410"),,(0,1,4),(0,1,2)
 +
 +
OK<br>Networks found
 +
 +
<br>
 +
 +
'''Phonebook'''<br>
 +
 +
With the 'Phone Book' tab, you can add/delete/read phone book entries stored on the SIM,
 +
 +
[[Image:Phone book.PNG]]
 +
 +
Getting phonebook entries..
 +
 +
[http://m2msupport.net/m2msupport/atcpbr-read-phonebook-entries/ AT+CPBR=1,99]
 +
 +
+CPBR: 1,"*233",129,"Refill Now"
 +
 +
+CPBR: 2,"#999#",255,"Check Balance"
 +
 +
+CPBR: 3,"8878878878",129,"Test"
 +
 +
OK<br>
 +
 +
== How to buy ==
 +
Here to buy 3G GPS Shield on [http://store.linksprite.com/3g-gps-shield-for-arduino/ store]
 +
 +
== Resource ==
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/3G_shield_schematic+(1).pdf 3G shield schematic]
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/SIM5218_AT_command_manual+(1).pdf SIM5218 AT command manual]
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/V-SIM5218E_HD_V1.04.pdf SIM5218 Hardware Design]
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/WindowsDrivers_SIM5218_2.4.00.rar Drivers for Windows]
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/3G+GPS+shield+for+Arduino.fzpz  Fritzing libraries]
 +
*[https://s3.amazonaws.com/linksprite/Shields/3G_GPS_shield/Jumpers+of+3G+Arduino+shield.pdf Jumpers of 3G Arduino shield]
 +
*[http://www.cutedigi.com/blog/?p=74 CuteDigi 3G+GPS Shield Test Tutorial]

Latest revision as of 06:42, 18 February 2014

Introduction

Note:

This shield uses wall adapter rated at 6V/2A. Please don't use voltage larger than 6V, it will burn the 3G module.


This 3G+GPS Shield is using the design, schematics and code from

http://www.cooking-hacks.com/index.php/documentation/tutorials/arduino-3g-gprs-gsm-gps.


The new 3G shield for Arduino enables the connectivity to high speed WCDMA and HSPA cellular networks in order to make possible the creation of the next level of worldwide interactivity projects inside the new "Internet of Things" era.

The module counts also with an internal GPS what enables the location of the device outdoors and indoors combining standard NMEA frames with mobile cell ID triangulation using both assisted-mobile (A-GPS) and mobile-based (S-GPS) modes.

Other interesting accessories which can be connected to the module are a video camera which enables the record of video in high resolution (640x480), an audio kit including microphone, speaker, hands free and headphones sets and a SD socket to save directly all the data coming from the 3G network or recorded from the video camera. You can even reproduce audio files stored in the SD card (like a mp3 player!).

You can also use it as a standard 3G modem at full speed (~7.2Mbps download, ~5.5Mbps upload) just connecting it through its specific mini-USB socket to your laptop (Linux, Windows, MacOS).

The new communicating module is specially oriented to work with Internet servers implementing internally several application layer protocols which make easier to send the information to the cloud. We can make HTTP and HTTPS (secure mode) navigation, downloading and uploading content to a web server. In the same way FTP and FTPS (secure mode) protocols are also available which is really useful when your application requires handling files. You can even send and receive mails directly from Arduino using the SMTP and POP3 clients implemented internally.

With the SD Card socket so you can handle a complete FAT16 file systems and store up to 32GB of information. This specially useful as the 3G module can work at full speed (~7.2Mbps download, ~5.5Mbps upload) when working with the SD files directly without need of Arduino for data or files management.

The GPS module also makes possible perform geolocation services even in indoors as it can work in A-GPS and S-GPS modes, so the location given by the GPS through NMEA sentences is completed with the cell information provided by both the 3G module and external Internet Geoposition Servers which helps you to get the most accurate location in each case.

3G GPS shield.jpg

Features

  • WCDMA and HSPA 3G networks compatibility
  • Internal GPS for Assisted A-GPS and Supported S-GPS modes
  • Video Camera (640x480) for video and photo recordings available
  • Audio Kit including microphone, speaker, hands free and headphones available
  • SD file system up to 32GB
  • Works as a standard 3G modem in Linux/Windows/MacOS (~7.2Mbps download, ~5.5Mbps upload)
  • Talk directly to web servers by HTTP/HTTPS (secure)
  • Upload and download files directly by FTP/FTPS (secure)
  • Send and receive mails by POP3/SMTP
  • Play compressed audio files

Antennas

Connections

SIM5218 has 3 UFL connectors. Two for diversity of 3G mobile carriers and one for GPS antenna. The impedance of the RF interface is 50Ω. It is recommended use just the "main" antenna socket for the mobile connection unless you experience coverage or performance problems. In this case two antennas allowing diversity may be placed.

Antennacon1.jpg

Also, the module allows to solder the antenna to the pad, or attach it via contact springs.

Antennacon2.jpg

Bandwidth

3G module connected with Arduino allows downlinks rates over 115200 bauds (~11.5KBps), the maximum UART's speed and uplinks rates over 30000 bauds (~3KBps).

Using the module as 3G USB modem we got speeds of 2Mbps (~222KBps) for downlink and 0.7Mbps (~77KBps) for uplink and.

The connection speed may vary depending on the state of the network, the quality of the signal and the carrier.

Using 3G module with AT commands

Important issues:

  • Use capital letters for AT commands.
  • Send CR (Carriage return) and LF (Line feed) after the AT command.
  • Place the serial communication jumpers in the right position.
  • Use an external power supply and place the power jumpers in the right position. If the shield is powered from the Arduino, the power jumper must be in Arduino 5V position. If the shield is powered from the Vin input (in the shield), the power jumper must be in Vext position.

The first thing we are going to do with the module is to connect the module to a PC directly (using an Arduino as gateway) and check the basic AT commands. In this case, serial communication jumpers have to be set on USB gateway position.

Remember take out the ATmega microcontroller from the Arduino gateway.

Basic configuration:

Arduinouno.jpg

Connect the shield to the Arduino gateway.

Then connect the SIM card and the USB cable.

Finally plug the USB cable to the computer and open a serial port terminal to communicate via the usb port (e.g: hyperterminal (win), cutecom / gtkterm (linux)).

If you use the Arduino IDE serial monitor for sending AT commands – Be sure that you are sending CR (Carriage return) and LF (Line Feed).

Set the baudrate to 115200 bps and open the serial port, then press the ON button for two seconds. Then if you type AT you'll get OK, this means that the communication with the module is working fine. Now, with the module working you can check some AT commands to control the module, the basic commands are:

Important type commands in capital letters and with CR (carriage return) and LF (line feed)!!!

Command Respone Description
AT OK If you get OK, the communication with the module is working
AT+CPIN="****" OK If the SIM card is locked with PIN (**** is the pin number)
AT+COPS? Operator information

NOTE: If your 3G module doesn't answer to AT commands, maybe it is configured in a different baudrate. The command for change it temporally is AT+IPR. Try differents baudrates (300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800,921600, 3200000,3686400,4000000 ) until you get to communicate. Once you can communicate, you can configure it in the baudrate you want.

Using 3G module like a modem

If you want to use the 3G module such a modem, please refer to the next link:

3G modem tutorial

Audio

Audio Features

SIM5218 module provides two analogy inputs for microphone and three analogy outputs for two speakers and headphones. Depending of the selected audio channel (normal, headset and hands-free) a specific input and output are activated. The different channels are selected with the command AT+CSDVC.

Normal channel (AT+CSDVC=1) uses the main microphone and a speaker. Headset channel (AT+CSDVC=2) uses the jack connector. Hand-free channel (AT+CSDVC=3) uses the main microphone and the loudspeaker.

Both microphones don't need an external power source because they are powered directly by the module. You can use some extra commands in your codes like noise suppression, echo canceller or the gain of the mic amps. Please, refer to the AT command document list at the end of this article for more information.

Audio Connectors

Audio connectors are situated at the bottom of the board. The two speakers and the main microphone are connected to board using pin connectors.

Headset connector are situated at the bottom too, between Arduino board and 3G board.

This connector has 4 terminals that correspond with the positive terminal of the microphone, left and rigth headphones and common ground. The order of connections show below.

Headphone.jpg

Originating and receiving voice calls

The code example and the connection diagram shown below are used to originate a voice call and, pushing a button, end that voice call. The button is connected between digital pin 12 an ground. A 10kΩ pull-up resistor is needed at this pin.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int button = 12; int onModulePin = 2; // the pin to switch on the module (without press on button)

int timesToSend = 1; // Numbers of calls to make

char phone_number[]="*********"; // ********* is the number to call


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(button, INPUT);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   }

}

void loop(){ 

   while (count < timesToSend){

       for(int x=0;x < 9;x++){        //generates the tones of the phone number
           Serial.print("AT+CPTONE=");
           Serial.println(phone_number[x]);
           delay(400);                    
       }

       Serial.print("ATD");     
       Serial.print(phone_number);     
       Serial.println(";");        

       while(digitalRead(button)==1);        

       Serial.println("AT+CHUP");            // disconnects the existing call

       delay(5000);

       count++;
   }

}

</syntaxhighlight>

To make a lost call next code is used.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int timesToSend = 1; // Numbers of calls to make int count = 0; int tones = 2; //Each tone has a duration of 6 seconds aprox.

char phone_number[]="*********"; // ********* is the number to call

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   }

}

void loop(){ 

   while (count < timesToSend){
       delay(1500);
   for(int x=0;x < 9;x++){        //generates the tones of the phone number
           Serial.print("AT+CPTONE=");
           Serial.println(phone_number[x]);
           delay(400);                    
       }

       Serial.print("ATD");     
       Serial.print(phone_number);     
       Serial.println(";");   
       delay(6000*tones);
       Serial.println("AT+CHUP");            // cancel the call

       delay(5000);

       count++;
   }

} </syntaxhighlight>

To receive calls the used code are this and the connection diagram is the same that the used to originate calls. Don't forget the pull-up resistor on pin 12.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int button = 12; int onModulePin = 2; // the pin to switch on the module (without press on button)

int timesToSend = 1; // Numbers of calls to make

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

boolean check_response(char *str){ 

   int i = 0;
   int j = 0;
   char b[10];



   // reading the message and cutting
   // initials and finals 
   while(Serial.available() > 0){
       if(j==0 || j==1){
           Serial.read();
           j++;
       }
       else if( Serial.peek() == 13 ){
           b[i] = 0;
           Serial.read();
       }
       else if( Serial.peek() == 10 ){
           Serial.read();
       }
       else {
           b[i++] = Serial.read();
       }
   }

   // comparing
   int cont=0;
   int cont2=0;
   boolean ok=false;
   while(b[cont]!=-1){
       if (b[cont]==str[cont2]){
           while(str[cont2]!=-1){
               if (b[cont+cont2]!=b[cont2])
               {    
                   cont2++; 
                   ok=true; 
               }
               else {
                   ok=false; 
                   break;
               }
           }   
       }
       if (ok) break;
       cont++;
   }

   if(ok){
       return true;
   }
   
   return false;

}


void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(button, INPUT);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   }

}

void loop(){ 

   while(!check_response("RING"));   //waits for a call
   Serial.println("ATA");          //answers an incoming call
   delay(10000);
   
   while(digitalRead(button)==1);        

   Serial.println("AT+CHUP");            // disconnects the existing call

} </syntaxhighlight>

The channel may be changed during a call. Use the command AT+CSDVC to select the channel that you want.

Recording and playing sound

With the next code we can record a sound, stores it and before play it. You can select the place to store the sound clip: the local storage or a SD card. Once saved the sound can be sent to an FTP or FTPS as you'll see later.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   for(x=0;x < 20;x++){
       name[x]='\0';
   }

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+FSLOCA=0");     
   // store media files to local storage space, put 1 to store media files to storage card
   while(Serial.read()!='K');
   
   Serial.println("AT+CNSM=1");     // Enables noise supression
   while(Serial.read()!='K');

}

void loop(){ 

   //RECORDING A SOUND CLIP
   delay(1500);
   while(Serial.available()!=0){
       Serial.read();
   }
   Serial.println("AT+CQCPREC=0,amr");     // starts to record a sound clip
   Serial.flush();
   while(Serial.read()!='/');
   while(Serial.read()!='/');

   x=0;
   do{
       while(Serial.available()==0);
       name[x]=Serial.read();
       x++;
   }while(x < 19);

   while(Serial.read()!='K');  
   Serial.println(name);      
   delay(10000);   

   Serial.println("AT+CQCPPAUSE");     // pauses record sound
   while(Serial.read()!='K');        
   delay(2000);   

   Serial.println("AT+CQCPRESUME");     // resumes record sound
   while(Serial.read()!='K');        
   delay(10000);

   Serial.println("AT+CQCPSTOP");     // stops to record a sound clip
   while(Serial.read()!='K');   



   //PLAY A SOUND CLIP
   Serial.println("AT+FSCD=Audio");
   Serial.flush();
   while(Serial.read()!='K'); 

   Serial.print("AT+CCMXPLAY=\"");    //plays an audio file
   Serial.print(name);  
   Serial.println("\"");
   Serial.flush();
   while(Serial.read()!='K');   
   delay(7000);         

   Serial.println("AT+CCMXPAUSE");     // pauses playing audio file
   while(Serial.read()!='K');        
   delay(2000);   

   Serial.println("AT+CCMXRESUME");     // resumes playing audio file
   while(Serial.read()!='K');        
   delay(8000);

   Serial.println("AT+CCMXSTOP");     // Stops playing audio file
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

Also, you can use the 3G module like a mp3 player! First, you must save your music in mp3, amr or qcp format. You can use Audacity (linux) or Mobile Media Converter (Windows or Linux) to do this. Then, save the music in the Audio folder on microSD card. Now, put microSD card into the shield and enjoy the music!

NOTE: You will need to update your firmware to play mp3. The update is available here. Uncompress and run it in a PC with Windows (emulated Windows not supported).

A voice call can be recorded using these same commands too.

Command summary

Command Response Description
AT+CPTONE=** OK Plays a DTMF tone or complex tone on local voice channel device . ** is the number of the tone.
ATD*********; ********* is the number to call.
ATA OK Answer an incoming call.
AT+CHUP OK Cancel voice calls.
AT+CNSM OK Enable/disable noise suppression.
AT+CQCPREC=*,&&& Starts recording sound clips . Answers with the path and the name of the clip. * is the path and &&& is the format.
AT+CQCPPAUSE OK Pauses record sound.
AT+CQCPRESUME OK Resumes record sound.
AT+CQCPSTOP OK Stops record sound.
AT+CCMXPLAY=”*****” OK Plays an audio file . ***** is the name of the file.
AT+CCMXPAUSE OK Pauses playing audio file.
AT+CCMXRESUME OK Resumes playing audio file.
AT+CCMXSTOP OK Stops playing audio file.

Camera

Pindiagram.jpg

Pin nº Name Pin nº Name Pin nº Name
1 NC 9 HSYNC 17 PCLK
2 AGND 10 DVDD 18 DATA6
3 SDA 11 DOVDD 19 DATA2
4 AVDD 12 DATA9 20 DATA5
5 SCL 13 MCLK 21 DATA3
6 RESET 14 DATA8 22 DATA22
7 VSYNC 15 AGND 23 DATA1
8 PWDN 16 DATA7 24 DATA0

CameraExample.jpg

Mounting the camera

Follow these simple steps to mount the camera into the 3G Arduino board.

  • The first step is to open the socket. To do this, pull carefully out the sides of the connector.
  • Inserts the camera with metallic contacts facing up
  • At the final step, push in the laterals of the connector

Vedio Recording

To record video, and take images, you must start the camera in the first step. After you can configure some parameters like resolution, fps, rotation or zoom. The next code allows to record a video file in mp4 format. Remember, if you want to store the video file in a SD card, you must to use AT+FSLOCA command.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                //UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   }      

   Serial.println("AT+CCAMS");     //starts the camera
   while(Serial.read()!='K');

   Serial.println("AT+CCAMSETD=320,240");     //sets QVGA (320*240) resolution
   while(Serial.read()!='K');

   Serial.println("AT+CCAMSETF=2");     //sets 15 frames per second
   while(Serial.read()!='K');

}

void loop(){ 

   delay(1500);
   
   while(Serial.available()!=0){
       Serial.read();
   }
   
   Serial.println("AT+CCAMRS");     //starts to record a video
   Serial.flush();                  //video is saved into C:/Video
   while(Serial.read()!='/');
   while(Serial.read()!='/');

   x=0;
   do{
       while(Serial.available()==0);
       name[x]=Serial.read();
       x++;
   }while(x < 19);

   while(Serial.read()!='K');  
   Serial.println(name);      
   delay(10000);   

   Serial.println("AT+CCAMRP");     // pauses record 
   while(Serial.read()!='K');        
   delay(2000);   

   Serial.println("AT+CCAMRR");     // resumes record 
   while(Serial.read()!='K');        
   delay(10000);

   Serial.println("AT+CCAMRE");     // stops to record
   while(Serial.read()!='K');  

   Serial.println("AT+CCAME");     // stops the camera
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

Taking Photo

Take photos is very easy, here is the example code:

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i < 5;i++){
       delay(5000);
   }   

   Serial.println("AT+CCAMS");     //starts the camera
   while(Serial.read()!='K');

   Serial.println("AT+CCAMSETD=640,480");     //sets VGA (640*480) resolution
   while(Serial.read()!='K');
   
   Serial.println("AT+FSLOCA=0");     //stores the image file in the 3G module
   while(Serial.read()!='K');

}

void loop(){ 

   delay(1500);
   while(Serial.available()!=0){
       Serial.read();
   }
   Serial.println("AT+CCAMTP");     //takes a picture, but not saved it
   while(Serial.read()!='K');  

   Serial.println("AT+CCAMEP");     // saves the picture into C:/Picture    
   Serial.flush();     
   while(Serial.read()!='/');
   while(Serial.read()!='/');

   x=0;
   do{
       while(Serial.available()==0);
       name[x]=Serial.read();
       x++;
   }while(x < 19);

   while(Serial.read()!='K');  
   Serial.println(name); 

   Serial.println("AT+CCAME");     // stops the camera
   while(Serial.read()!='K');  

   while(1);

} </syntaxhighlight>

Video Call

The SIM5218 allows video calls, but to carry them out correctly the operator and the network must be able to allow it. The example code is below. Cooking Hacks not ensure that the video call functions correctly.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char phone_number[]="*********"; // ********* is the number to call

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                //UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   }      

   Serial.println("AT+CCAMS");     //starts the camera
   while(Serial.read()!='K');

   Serial.println("AT+CCAMSETD=320,240");     //sets QVGA (320*240) resolution
   while(Serial.read()!='K');

   Serial.println("AT+CCAMSETF=2");     //sets 15 frames per seconds
   while(Serial.read()!='K');

}

void loop(){ 

   delay(1500);

   while(Serial.available()!=0){
       Serial.read();
   }

   Serial.print("AT+VPMAKE=");     //inits a videocall
   Serial.println(phone_number);
   delay(30000);

   Serial.println("AT+VPEND");     // ends the videocall
   while(Serial.read()!='K');     

   Serial.println("AT+CCAME");     // stops the camera
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

Command Summary

Command Response Description
AT+CCAMS OK Starts camera.
AT+CCAME OK Stops camera.
AT+CCAMSETD=xxx,yyy OK Sets dimension of camera. xxx is the width and yyy is the height.
AT+CCAMSETF=* OK Sets the frames per second. * is the frame rate option.
AT+CCAMRS OK Starts video recording . Also responds with the path and name of the file.
AT+CCAMRP OK Pauses the record.
AT+CCAMRR OK Resumes video record.
AT+CCAMRE OK Stops video record.
AT+CCAMTP OK Takes a picture.
AT+CCAMEP OK Saves a picture taken by last AT+CCAMTP. Also responds with the path and name of the file.
AT+VPMAKE Makes a video call.
AT+VPEND Ends a video call.

GPS

SIM5218 supports both A-GPS and S-GPS and provides three operating modes: mobile-assisted mode, mobile-based mode and standalone mode. A-GPS is include mobile-assisted and mobile-based mode.

In mobile-assisted mode, when a request for position location is issued, available network information is provided to the location server (e.g., Cell-ID) and assistance is requested from the location server. The location server sends the assistance information to the handset. The handset/mobile unit measures the GPS observables and provides the GPS measurements along with available network data (that is appropriate for the given air interface technology) to the location server. The location server then calculates the position location and returns results to the requesting entity.

In mobile-based mode, the assistance data provided by the location server encompasses not only the information required to assist the handset in measuring the satellite signals, but also the information required to calculate the handset’s position. Therefore, rather than provide the GPS measurements and available network data back to the location server, the mobile calculates the location on the handset and passes the result to the requesting entity.

In standalone (autonomous) mode, the handset demodulates the data directly from the GPS satellites. This mode has some reduced cold-start sensitivity, and a longer time to first fix as compared to the assisted modes. However, it requires no server interaction and works out of network coverage.

This combination of GPS measurements and available network information provides:

  • High-sensitivity solution that works in all terrains: indoor, outdoor, urban, and rural
  • High availability that is enabled by using both satellite and network information

Therefore, while network solutions typically perform poorly in rural areas and areas of poor cell geometry/density, and while unassisted, GPS-only solutions typically perform poorly indoors, the SIM5218 GPS solution provides optimal time to fix, accuracy, sensitivity, availability, and reduced network utilization in both of these environments, depending on the given condition.

Stand-alone mode

In this mode, the GPS obtains position, altitude,... with only the signal of the satellites, making it the slowest of the three modes. If you use the AT+CGPSINFO command, the module bring directly latitud, logitude, date, UTC time, altitude and speed. Here is the example code:

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[255]; char latitude[11],longitude[12]; char date[6],UTC_time[8]; char speed_OG[6],altitude[6];

int x,y;


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGPS=1,1");         // starts GPS session in stand-alone mode
   delay(100);

}

void loop(){ 

   delay(5000);
   Serial.println("AT+CGPSINFO"); // request GPS info
   Serial.flush();
   
   x=0;
   do{
       do{
           digitalWrite(led,HIGH);  
       }
       while(Serial.available()==0);
       digitalWrite(led,LOW);
       data[x]=Serial.read();  
       x++;                        
   }
   while(Serial.read()!='K');

   x=24;
   y=0;
   if(data[x]!=','){
       Serial.print("Latitude: ");    //shows actual latitude
       do{
           latitude[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       x++;
       Serial.print(" ");
       Serial.println(data[x]);    //north or south

       x+=2;
       y=0;
       Serial.print("Longitude: ");    //shows actual longitude
       do{
           longitude[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++; 
       }
       while(data[x]!=',');
       x++;
       Serial.print(" ");
       Serial.println(data[x]);    //west or east

       x+=2;
       y=0;
       Serial.print("Date: ");    //shows date
       do{
           date[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       x++;

       y=0;
       Serial.print("\r\nUTC time: ");    //shows UTC time
       do{
           UTC_time[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       x++;

       y=0;
       Serial.print("\r\nAltitude: ");    //shows altitude
       do{
           UTC_time[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       Serial.println(" m");
       x++; 

       y=0;
       Serial.print("Speed: ");    //shows speed
       do{
           speed_OG[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=0x0D);
       Serial.println(" knots");
   }
   else{
       Serial.println("GPS information not available, please wait...");
   }

} </syntaxhighlight>

If you want to get the NMEA sentences, you must to use the command AT+CGPSSWITCH=1 and configure the UART port at 57600 bauds. Supported NMEA sentences include GSV, GGA, RMC, GSA, and VTG.

S-GPS Mode

For the S-GPS the module connects to a GPS server and the module calculates the position. Here is the example code:

<syntaxhighlight lang="c"> /*

  • 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 .
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[255]; char latitude[11],longitude[12]; char date[6],UTC_time[8]; char speed_OG[6],altitude[6];

int x,y;


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

 Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");    
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!check_response("OK"));

   Serial.println("AT+CGPSURL=\"supl.google.com:7276\"");         // sets GPS server
   delay(100);   
   while(Serial.read()!='K'); 

   Serial.println("AT+CGPSSSL=0");         // without certificate
   delay(100);   
   while(Serial.read()!='K'); 

   Serial.println("AT+CGPS=1,2");         // starts GPS session in based mode
   delay(100);   
   while(Serial.read()!='K');

}

void loop(){ 

   delay(5000);
   Serial.println("AT+CGPSINFO"); // request GPS info
   Serial.flush();
   for (x=0;x< 255;x++){            
       data[x]='\0';                        
   } 
   x=0;
   do{
       do{
           digitalWrite(led,HIGH);  
       }
       while(Serial.available()==0);
       digitalWrite(led,LOW);
       data[x]=Serial.read();  
       x++;                        
   }
   while(Serial.read()!='K');

   x=24;
   y=0;
   if(data[x]!=','){
       Serial.print("Latitude: ");    //shows actual latitude
       do{
           latitude[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
           if(y==2){
               Serial.print(0xF8);
           }

           if(y==4){
               Serial.print(".");
           }
       }
       while(data[x]!=',');
       x++;
       Serial.print(" ");
       Serial.println(data[x]);    //north or south

       x+=2;
       y=0;
       Serial.print("Longitude: ");    //shows actual longitude
       do{
           longitude[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
           if(y==3){
               Serial.print(0xF8);
           }

           if(y==5){
               Serial.print(".");
           }        
       }
       while(data[x]!=',');
       x++;
       Serial.print(" ");
       Serial.println(data[x]);    //west or east

       x+=2;
       y=0;
       Serial.print("Date: ");    //shows date
       do{
           date[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       x++;

       y=0;
       Serial.print("\r\nUTC time: ");    //shows UTC time
       do{
           UTC_time[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       x++;

       y=0;
       Serial.print("\r\nAltitude: ");    //shows altitude
       do{
           UTC_time[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=',');
       Serial.println(" m");
       x++; 

       y=0;
       Serial.print("Speed: ");    //shows speed
       do{
           speed_OG[y]=data[x];
           Serial.print(data[x]);
           y++;
           x++;        
       }
       while(data[x]!=0x0D);
       Serial.println(" knots");
   }
   else{
       Serial.println("GPS information not available, please wait...");
   }

} </syntaxhighlight>

A-GPS Mode

For the A-GPS the module connects to a GPS server for calculate the position. Here is the example code:

MS-assisted Server Module
Location server sends aiding data that is valid for the current fix Sending Data
Module sends code phases Code phases
Server calculates position Calculate position
MS-based Server Module
Location server sends aiding data that is valid for the current fix Send aiding data
Module calculates Calculate position
Stand alone Server Module
Module demodulates data form GPS satellite Demodulates GPS satellite data
Module calculates position Calculate position

GPS Units

The command AT+CGPSINFO returns the GPS info in a string:

+CGPSINFO: [<latitude>],[<N/S>],[<longitude>],[<E/W>],[<date>],[<UTC_time>],[<altitude>],[<speedOG>],[<course>]

Values Format Example
latitude ddmm.mmmmmm

d: degree; m: minute

4140.831527
longitude dddmm.mmmmmm

d: degree; m: minute

00053.173495
data ddmmyy

d: day; m: month; y: year

020812
altitude meters 257.00
speedOG knots 2
course degrees 0

If UE-assisted mode, when fixed will report indication:

+CAGPSINFO:<latitude>,<longitude>,<altitude>,<date>,<UTC_time>

Values Format Example
latitude Unit is in 10^8 degree 4168050885
longitude Unit is in 10^8 degree 88618039
altitude meters 293
date ddmmyyyy

d: day; m: month; y: year

28092012
UTC_time hhmmss.s

h: hour; m: minute; s: seconds

081611.0

Command Summary

Command Response Description
AT+CGSOCKCONT=**,&&& OK ** is the protocol and &&& Access Point Name.
AT+CGPS=*,& OK * sets on (1) or off (0) and & is the GPS mode.
AT+CGPSINFO Gets current position information.
AT+CGPSURL=”***” OK Sets AGPS default server URL . *** is the URL.
AT+CGPSSSL=* OK Select transport security, used certificate (*=1) or not (*=0).
AT+CGPSSWITCH OK Choose the output port for NMEA sentence.

SMS

Sending and Receiving SMS

The first code is used to send a SMS, the second one reads the SIM message memory and shows the last SMS.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int timesToSend = 1; // Numbers of SMS to send int count = 0;

char phone_number[]="*********"; // ********* is the number to call

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CMGF=1");         // sets the SMS mode to text
   delay(100);

}

void loop(){ 

   while (count < timesToSend){
       delay(1500);
       Serial.print("AT+CMGS=\"");   // send the SMS number
       Serial.print(phone_number);
   Serial.println("\""); 
       delay(1500);      
       Serial.print("Hola caracola...");     // the SMS body
       delay(500);
       Serial.write(0x1A);       //sends ++
       Serial.write(0x0D);
       Serial.write(0x0A);

       delay(5000);

       count++;
   }

} </syntaxhighlight>

another code <syntaxhighlight lang="c"> 

*  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/.
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
*
*  Version 0.1
*/


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int timesToSend = 1; // Numbers of SMS to send int count = 0;

int n_sms,x,sms_start; char data[256];

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i = 0;i < 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CMGF=1");         // sets the SMS mode to text
   delay(100);
   x = 0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;       

   }
   while(!((data[x-1] == 'K') && (data[x-2] == 'O')));

}

void loop(){ 

   while (count < timesToSend){
       delay(1500);

       while(Serial.available()!=0) Serial.read();

       Serial.println("AT+CPMS=\"SM\",\"SM\",\"SM\"");    //selects SIM memory
       Serial.flush();
       for (x=0;x < 255;x++){            
           data[x]='\0';                        
       } 
       x=0;
       do{
           while(Serial.available()==0);
           data[x]=Serial.read();  
           x++;       

       }while(!((data[x-1] == 'K') && (data[x-2] == 'O')));

       x=0;
       do{
           x++;
       }while (data[x] != ' ');

       x++;
       n_sms=0;
       do{
           n_sms*=10;
           n_sms=n_sms + (data[x]-0x30);

           x++;

       }while (data[x] != ',');
       
       Serial.print(" ");
       Serial.print(n_sms,DEC);

// Now it shows the total number of SMS and the last SMS 

       Serial.println("  SMS stored in SIM memory. Showing last SMS:");

       Serial.print("AT+CMGR=");    //Reads the last SMS 
       Serial.println(n_sms-1,DEC);
       Serial.flush();
       for (x=0;x < 255;x++){            
           data[x]='\0';                        
       } 
       x=0;
       do{
           while(Serial.available()==0);
           data[x]=Serial.read();  
           x++;           
           if((data[x-1] == 0x0D) && (data[x-2] == '"')){
               x=0;
           }
       }
       while(!((data[x-1] == 'K') && (data[x-2] == 'O')));

       data[x-3]='\0';        //finish the string before the OK

       Serial.println(data);    //shows the message

       delay(5000);

       count++;
   }

} </syntaxhighlight>

Command Summary

Command Response Description
AT+CMGF= OK Specifies the input and output format of the short messages. 0 for PDU mode and 1 for text mode.
AT+CMGS Sends a message.
AT+CPMS=*** Selects memory storages. *** is the memory type.
AT+CMGR=* Reads a message. * is the number of the message.

E-mails

Sending an E-mail

To send e-mail a SMTP server is used, so we need an e-mail account. The code example is the next:

<syntaxhighlight lang="c"> /*

  • 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 .
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button) int x;

//server and account data char server[ ]=""; char user_name[ ]=""; char password[ ]=""; char port[ ]="";

//information about sender, direcctions and names char sender_add[ ]=""; char sender_name[ ]="";

char to_add[ ]=""; char to_name[ ]="";

char cc_add[ ]=""; char cc_name[ ]="";

char bcc_add[ ]=""; char bcc_name[ ]="";

// char subject[ ]=""; char body[ ]="";

char response[128];


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   }

}


void loop(){ 

   Serial.print("AT+SMTPSRV=\"");    
   //configures the SIM5218 with server name and port
   Serial.print(server);
   Serial.print("\",");
   Serial.println(port);
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));

   Serial.print("AT+SMTPAUTH=1,\"");    //configures the SIM5218 with user name and password
   Serial.print(user_name);
   Serial.print("\",\"");
   Serial.print(password);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));



   Serial.print("AT+SMTPFROM=\"");    //sender adress and name
   Serial.print(sender_add);
   Serial.print("\",\"");
   Serial.print(sender_name);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));



   Serial.print("AT+SMTPRCPT=0,0,\"");    //normal recipient address and name
   Serial.print(to_add);
   Serial.print("\",\"");
   Serial.print(to_name);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));

   //If you don't need a carbon copy, delete this part
   Serial.print("AT+SMTPRCPT=1,0,\"");    //carbon copy recipient address and name
   Serial.print(cc_add);
   Serial.print("\",\"");
   Serial.print(cc_name);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));

   //If you don't need a blind carbon copy, delete this part
   Serial.print("AT+SMTPRCPT=2,0,\"");    //blind carbon copy recipient address and name
   Serial.print(bcc_add);
   Serial.print("\",\"");
   Serial.print(bcc_name);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));



   Serial.print("AT+SMTPSUB=\"");    //subjec of email
   Serial.print(subject);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));



   Serial.print("AT+SMTPBODY=\"");    //body of email
   Serial.print(body);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));    



   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");    
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));



   Serial.println("AT+SMTPSEND");    //sends the email
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       response[x]=Serial.read();  
       x++;                        
   }
   while(!(response[x-1]=='K'&&response[x-2]=='O'));

   Serial.print("Sending email...");

   x=0;
   do{
       do{
           digitalWrite(led,HIGH);    
       }
       while(Serial.available()==0); 
       digitalWrite(led,LOW);    
       response[x]=Serial.read();   
       x++;
   }
   while(!(response[x-1]=='S'&&response[x-2]=='S'));

   Serial.println(response);

   while(1);

} </syntaxhighlight>

Receiving an E-mail

For read an e-mail from a POP3 server we need an e-mail account. The code example is here: <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button) int x;

//server and account data char server[ ]=""; char user_name[ ]=""; char password[ ]=""; char port[ ]="";


char data[1024]; char path[50];


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");    
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop(){ 

   Serial.print("AT+POP3SRV=\"");    
   //configures the SIM5218 with server name, user, password and port
   Serial.print(server);
   Serial.print("\",\"");
   Serial.print(user_name);
   Serial.print("\",\"");
   Serial.print(password);
   Serial.print("\",");
   Serial.println(port);
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }
   while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+POP3IN");    //logs into the server
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+POP3GET=1");    //gets the first email
   Serial.flush();

   do{
       while(Serial.available()==0);
       path[0]=Serial.read();
   }while(path[0]!='/'); 

   do{
       while(Serial.available()==0);
       path[0]=Serial.read();  
   }
   while(path[0]!='/');

   x=0;
   do{
       while(Serial.available()==0); 
       path[x]=Serial.read(); 
       x++;                        
   }while(path[x-1]!=' ');

   x--;    //overwrite " " charracter
   x--;    //overwrite "," charracter

   do{
       while(Serial.available()==0); 
       path[x]=Serial.read(); 
       x++;                        
   }while(path[x-1]!=0x0D);
   path[x-1]='\0';



   Serial.println("AT+POP3OUT");    //logs out the server
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+FSCD=C:/Email");    //selects email directory as current directory
   Serial.flush();
   
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+POP3READ=0,\"");    //shows the email
   Serial.print(path);
   Serial.println("\"");
   Serial.flush();
   do{
       while(Serial.available()==0);
       data[0]=Serial.read();         
   }while(data[0]!='D');
   
   do{
       while(Serial.available()==0);
       data[0]=Serial.read();         
   }while(data[0]!='D');
   
   x=1;    
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;   
       if(x==1020){
           Serial.print(data);
           x=0;
       }        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'&&data[x-3]==0x0A&&data[x-4]==0x0D));

   data[x-2]='\0';
   Serial.println(data);
   
   while(1);

} </syntaxhighlight>

Command Summary

Command Response Description
AT+CGSOCKCONT=**,&&& OK ** is the protocol and &&& Access Point Name.
AT+SMTPSRV=”*****”,&&& OK Sets SMTP server address and server’s port . ***** is the sever address and &&& is the server's port.
AT+SMTPAUTH=1,”***”,”&&&” OK Controls SMTP authentication. *** is the user name and &&& is the password.
AT+SMTPFROM=”***”,”&&&” OK Sets sender’s address and nam e. *** is the sender's address and &&& is the sender's name.
AT+SMTPRCPT=x,”***”,”&&&” OK Sets recipient address/name and kind .

x is the kind (TO/CC/BCC), *** is the recipient address and &&& is the recipient name.

AT+SMTPSUB=”****” OK Sets the subject of e-mail . **** is the subject.
AT+SMTPBODY Sets e-mail body.
AT+SMTPSEND Initiates TCP session with SMTP server and sends an e-mail
AT+POP3SRV=”**”,”&&”,”xx”,yy OK Sets all parameters to get an e-mail from POP3 . ** is the server address, && is the user name,

xx is the password and yy the server port

AT+POP3IN OK Logs in POP3 server
AT+POP3GET=*** Gets an e-mail from POP3 server , *** is the number of the e-mail.
AT+POP3OUT OK Logs out POP3 server
AT+POP3READ=”***”,”&&&” Reads an e-mail from file system . *** is the location and &&& is the name.

SD and system memory

The file system is used to store files in a hierarchical (tree) structure. Local storage space is mapped to “C:”, and SD is mapped to “D:”. In both “C:” and “D:” directories, module creates four directories named “Picture”, “Audio”, “Video” and “VideoCall” automatically; “Picture” is used to store static image when taking picture by camera, “Audio” is used to store audio file, “Video” is used to store video file when recor ding by camera, and “VideoCall” is used to store media file which is recorded during a video call.

The maximum size of the microSD card is 32GB. Here are some AT commands to manage the file system:

Command Response Description
AT+FSCD=**** OK Select a directory as current directory . **** is the directory.
AT+FSMKDIR=**** OK Create a new directory in current directory . **** is the name of the new directory.
AT+FSRMDIR=**** OK Delete existing directory in current directory . **** is the name of the directory to delete.
AT+FSLS Make a list with informations of directories and/or files in current directory.
AT+DEL=**** OK Delete a file in current directory. **** is the name of the file to delete.
AT+FSRENAME=****,&&& OK Rename a file in current directory. **** is the actual name and &&& is the new name.
AT+FSATTRI=**** Request the attributes of file which is existing in current directory. **** is the name of the file.
AT+FSMEM Check the size of available memory.
AT+FSFMT OK Format storage card which is plugged in.
AT+FSLOCA= OK Set the storage place , 0 for local and 1 for SD

FTP and FTPS

FTP

Creating a file into the FTP server, writing it and reading it.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[1024]; int x=0; int file_size;

char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");    
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 Serial.print(server);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPORT=");    //Sets FTP port
 Serial.println(port);
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPUN=\""); //Sets the user name
 Serial.print(user_name);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPW=\""); //Sets password
 Serial.print(password);
 Serial.println("\"");     
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPPUT=\"/test.txt\"");    //Creates a file and sends data (ASCII)
   Serial.flush(); 
   while(Serial.read()]!='N');    //Waits 'N' from BEGIN

   Serial.println("01234567890123456789");    //Data for the file
   Serial.write(0x1A);    //EOL character
   Serial.write(0x0D);
   Serial.write(0x0A);

   x=0;

   do{
       while(Serial.available()==0);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));



   delay(1000);

   Serial.println("AT+CFTPGET=\"/test.txt\"");    //Reads the data from test file
   Serial.flush();

   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while((data[x-1]!=','));

   x=0;
   
   while(Serial.peek()!=0x0A){
       file_size=(file_size*10)+(Serial.read()-0x30);
   }; 

   for(x=0;x< file_size;x++){
       while(Serial.available()==0);
       data[x]=Serial.read();
   }
   
   Serial.print(data);

   while(1);


} </syntaxhighlight>

Uploading a file from local storage or SD to FTP server.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[256]; int x=0;

char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");    
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 Serial.print(server);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPORT=");    //Sets FTP port
 Serial.println(port);
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPUN=\""); //Sets the user name
 Serial.print(user_name);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPW=\""); //Sets password
 Serial.print(password);
 Serial.println("\"");     
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   //Selecciona el tipo ASCII
   Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));
   
   Serial.println("AT+CFTPPUTFILE=\"/testfile.txt\",0");    //Uploads a test file into FTP server.
   Serial.flush(); 
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   while(1);

} </syntaxhighlight>

Downloading a file from FTP server or SD to local storage.

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[1024]; int x=0;

char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");   
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.print("AT+CFTPSERV=\""); //Sets the FTP server
 Serial.print(server);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPORT=");    //Sets FTP port
 Serial.println(port);
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPUN=\""); //Sets the user name
 Serial.print(user_name);
 Serial.println("\""); 
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPPW=\""); //Sets password
 Serial.print(password);
 Serial.println("\"");     
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   //Selecciona el tipo ASCII
   Serial.println("AT+CFTPTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));   



   //Envia data
   Serial.println("AT+CFTPGETFILE=\"/testfile.txt\",0");  //Downloads a test file from FTP server.
   Serial.flush(); 
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   while(1);

} </syntaxhighlight>

FTPS

Creating a file into the FTP server, writing it and reading it (likes FTP codes) <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[1024]; int x=0; unsigned int file_size=0;


char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for(int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
   Serial.print(server);
   Serial.print("\",");
   Serial.print(port);
   Serial.print(",\"");
   Serial.print(user_name);
   Serial.print("\",\"");
   Serial.print(password);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));
   
   Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

  //Envia data
   Serial.println("AT+CFTPSPUT=\"/test_file.txt\",13");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();
       x++;  
   }while(data[x-1]!='>');
   
   Serial.write("Test message!");

   x=0;
   do{
       while(Serial.available()==0);
       digitalWrite(13, LOW);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   delay(1000);
   
   Serial.println("AT+CFTPSGET=\"/test.txt\"");    //Reads the data from test file
   Serial.flush();

   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while((data[x-1]!=','));

   x=0;
   
   while(Serial.peek()!=0x0A){
       file_size=(file_size*10)+(Serial.read()-0x30);
   }; 

   for(x=0;x< file_size;x++){
       while(Serial.available()==0);
       data[x]=Serial.read();
   }
   
   Serial.print(data);

   while(1);

} </syntaxhighlight>

Uploading a file from local storage or SD to FTP server <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[256]; int x=0;

char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // swithes the module ON

   for(int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
   Serial.print(server);
   Serial.print("\",");
   Serial.print(port);
   Serial.print(",\"");
   Serial.print(user_name);
   Serial.print("\",\"");
   Serial.print(password);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   //Envia data
   Serial.println("AT+CFTPSPUTFILE=\"/testfile.txt\",0"); //Uploads a test file from FTPS server.
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       digitalWrite(13, LOW);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   while(1);

} </syntaxhighlight>

Downloading a file from FTP server or SD to local storage <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

char data[256]; int x=0;

char server[ ]=""; char port[ ]=""; char user_name[ ]=""; char password[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for(int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

}

void loop() { 

   Serial.println("AT+CFTPSSTART");      //Acquires FTPS protocol stack
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.print("AT+CFTPSLOGIN=\"");      //Logs into FTPS server
   Serial.print(server);
   Serial.print("\",");
   Serial.print(port);
   Serial.print(",\"");
   Serial.print(user_name);
   Serial.print("\",\"");
   Serial.print(password);
   Serial.println("\"");
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPMODE=1");    //Selects pasive mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+CFTPSTYPE=I");    //Selects Binary mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   //Envia data
   Serial.println("AT+CFTPSGETFILE=\"/testfile.txt\",0"); //Downloads a test file from FTPS server.
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       digitalWrite(13, LOW);
       data[x]=Serial.read(); 
       x++;  
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   while(1);

} </syntaxhighlight>

Command and Summary

Command Response Description
AT+CGSOCKCONT=**,&&& OK ** is the protocol and &&& Access Point Name.
AT+CFTPSERV=”****” Sets FTP server domain name or IP address. **** is the domain name or the IP.
AT+CFTPPORT=*** OK Sets FTP server port. *** is the port.
AT+CFTPUN=”***” OK Sets user name for FTP server access. *** is the user name.
AT+CFTPPW=”***” OK Sets password for FTP server access. *** is the password.
AT+CFTPMODE= OK Sets FTP mode. 1 for passive or 0 for proactive.
AT+CFTPTYPE= OK Sets the transfer type on FTP server . A for ASCII or I for binary.
AT+CFTPPUT=”***”,&& Puts a file from FTP server to serial port . *** is the path with the name of the file and && is the length.
AT+CFTPGET=”***” Gets a file from FTP server to serial port . *** is the path with the name of the file.
AT+CFTPPUTFILE=”***”,& Uploads a file to FTP server from module . *** is the path and & is the storage directory.
AT+CFTPGETFILE”=***”,& Downloads a file from FTP server to module . *** is the path with the name and & is the storage directory.
AT+CFTPSSTART OK Acquires FTPS protocol stack.
AT+CFTPSLOGIN=”**”,&&&,”xxx”,”yyy OK Logs in FTPS server. *** is the host address, &&& is the port, xxx is the user name and yyy is the password.
AT+CFTPSTYPE= OK Sets the transfer type on FTPS server . A for ASCII or I for binary.
AT+CFTPSPUT=”***”,&& Puts a file from FTPS server to serial port . *** is the path with the name of the file and && is the length.
AT+CFTPSGET=”***” Gets a file from FTPS server to serial port . *** is the path with the name of the file.
AT+CFTPSPUTFILE=”***”,& Uploads a file to FTPS server from module . *** is the path and & is the storage directory.
AT+CFTPSGETFILE=”***”,& Downloads a file from FTPS server to module . *** is the path with the name and & is the storage directory.

TCP and UDP

UDP client

Sending data to a UDP server: <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

char server[ ]=""; char port[ ]="";


void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 

   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 

   Serial.print("AT+NETOPEN=\"UDP\","); //Opens the socket with the type of protocol and the port 
 Serial.println(port);        
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"

   Serial.print("AT+UDPSEND=12,\""); //Sends UDP data
 Serial.print(server);
 Serial.print("\",");
 Serial.println(port);        
   Serial.flush();
   while(Serial.read()!='>');  

   Serial.println("Test message");



   Serial.println("AT+NETCLOSE"); //Opens the socket with the type of protocol and the port 
   Serial.flush();
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

TCP Client

Sending data to a TCP server: <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

char server[ ]=""; char port[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 

   Serial.print("AT+NETOPEN=\"TCP\",");
   //Opens the socket with the type of protocol and the port 
 Serial.println(port);        
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
   
   Serial.print("AT+TCPCONNECT=\""); //Connects with the server
 Serial.print(server);
 Serial.print("\",");    
 Serial.println(port);
   Serial.flush();
   while(Serial.read()!='K');  

   Serial.println("AT+TCPWRITE=12");        //Sends TCP data
   Serial.flush();
   while(Serial.read()!='>');  

   Serial.println("Test message"); 
   
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));

   Serial.println("AT+NETCLOSE"); //Opens the socket with the type of protocol and the port 
   Serial.flush();
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

Multiclient

SIM5218 allows to use ten connections simultaneously. Here is the example code with a UDP and TCP connections. <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char UDP_server[ ]=""; char UDP_port[ ]=""; char TCP_server[ ]=""; char TCP_port[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 

   Serial.println("AT+NETOPEN=,,1");        //Opens the socket in multiclient mode
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
   
   Serial.println("AT+CIPOPEN=0,\"UDP\",\"");  //Connects with the UDP server
 Serial.print(UDP_server);
 Serial.print("\",");
 Serial.println(UDP_port);    
   Serial.flush();
   while(Serial.read()!='K');  
   
   Serial.println("AT+CIPOPEN=1,\"TCP\",\"");  //Connects with the TCP server
 Serial.print(TCP_server);
 Serial.print("\",");
 Serial.println(TCP_port);    
   Serial.flush();
   while(Serial.read()!='K');  

   Serial.println("AT+CIPSEND=0,16");    //Sends data to UDP server
   Serial.flush();
   while(Serial.read()!='>');  

   Serial.println("UDP test message"); 
   
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));
   
   Serial.println("AT+CIPSEND=1,16");    //Sends data to TCP server
   Serial.flush();
   while(Serial.read()!='>');  

   Serial.println("TCP test message"); 
   
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;                        
   }while(!(data[x-1]=='K'&&data[x-2]=='O'));
   
   Serial.println("AT+CIPCLOSE=0");    //Closes UDP connection
   Serial.flush();
   while(Serial.read()!='K');  
   
   Serial.println("AT+CIPCLOSE=1");    //Closes TCP connection
   Serial.flush();
   while(Serial.read()!='K'); 

   Serial.println("AT+NETCLOSE");        //Opens the socket with the type of protocol and the port 
   Serial.flush();
   while(Serial.read()!='K'); 

   while(1);

} </syntaxhighlight>

TCP Server

SIM5218 allows to create a TCP server with a maximum of ten TCP clients. In this example the server send a message every 5 seconds to all clients. <syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char name[20];

int clients=-2; char port[ ]="";

void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');  

   Serial.print("AT+NETOPEN=\"TCP\",");  
   //Opens the socket with the type of protocol and the port 
   Serial.println(port);        
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='d'&&data[x-2]=='e'));        //waits for response "Network opened"
   
   Serial.println("AT+SERVERSTART"); //Starts TCP server
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 


   Serial.println("AT+LISTCLIENT");  // List all of clients
 Serial.flush();
 clients=-2;
 do{
   if(Serial.read()==0x0D){
     clients++;
   }
 }while(Serial.peek()!='K'));



 for(int y=0;y< clients;y++){
   Serial.print("AT+ACTCLIENT=");    //activates the connection with the client  
   Serial.println(y);
   while(Serial.read()!='K'));

   Serial.println("AT+TCPWRITE=12");        //Sends TCP data
     Serial.flush();
     while(Serial.read()!='>');  

     Serial.println("Test message"); 
   
     x=0;
     do{
         while(Serial.available()==0);
         data[x]=Serial.read();  
         x++;                        
     }while(!(data[x-1]=='k'&&data[x-2]=='o'));    Waits for "send ok"

   Serial.print("AT+CLOSECLIENT="); //desactivates the connection with the client  
   Serial.println(y);
   while(Serial.read()!='K'));
 }

 delay(5000);

} </syntaxhighlight>

Command and Summary

Command Response Description
AT+NETOPEN=”***”,&& Opens a socket . *** is the socket type and && is the port.
AT+NETCLOSE OK Closes socket.
AT+UPDSEND Sends UDP data.
|
AT+TCPCONNECT=”***”,&& Establishes TCP connection with TCP server. *** is the IP address and && is the port.
AT+TCPWRITE Sends TCP data when the TCP connection is established.
AT+SERVERSTART OK Starts up TCP server.
AT+LISTCLIENT Lists all of clients’ information.
AT+ACTCLIENT=* OK Activates the specified client. * is the number of the client.
AT+CLOSECLIENT=* OK Disconnects the specified client. * is the number of the client.
|
AT+CIPOPEN=*,”&&”,”xx”,yy Establish a connection with TCP server or UDP server. * is the number of the connection,

&& is the type of transmision protocol, xx is the server IP and yy is the server port.

AT+CIPSEND Sends some data to remote host in mult-client mode.
AT+CIPCLOSE=* OK Closes a specified connection in multi-client mode. * is the number of the connection.

HTTP and HTTPS

HTTP

SIM5218 can launch a HTTP operation like GET or POST. Here is an example with GET operation: <syntaxhighlight lang="c"> /*

  • 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 ..
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int data_size int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char server[ ]=""; char port[ ]=""; void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 

   Serial.print("AT+CHTTPACT=\""); //Connects with the HTTP server
 Serial.print(server);
 Serial.print("\",");
 Serial.println(port);        
   Serial.flush();
   x=0;
   do{
       while(Serial.available()==0);
       data[x]=Serial.read();  
       x++;  
   }while(!(data[x-1]=='T'&&data[x-2]=='S'));        //waits for response "REQUEST"
   
   Serial.println("GET /index.html HTTP/1.1");
 Serial.println("Host: www.mywebsite.com");
 Serial.println("Content-Length: 0");
 Serial.write(0x1A);       //sends ++
   Serial.write(0x0D);
   Serial.write(0x0A);

 while(Serial.read()!='K');
 while(Serial.read()!=' ');

 data_size=0;  
 do{
   data_size*=10;
   data_size=data_size+(Serial.read()-0x30);
 }while(Serial.peek()!=0x0D);

 for(x=0;x< data_size;x++){
   data[x]=Serial.read();
 }

 Serial.print(data);

   while(1);

} </syntaxhighlight>

HTTPS

<syntaxhighlight lang="c"> /*

  • 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 .
  • Copyright (C) 2012 Libelium Comunicaciones Distribuidas S.L.
  • http://www.libelium.com
  • Version 0.1
  • Author: Alejandro Gállego
  • Version 0.1
  • /


char data[1024]; int data_size int led = 13; int onModulePin = 2; // the pin to switch on the module (without press on button)

int x = 0;

char server[ ]=""; char port[ ]=""; void switchModule(){ 

   digitalWrite(onModulePin,HIGH);
   delay(2000);
   digitalWrite(onModulePin,LOW);

}

void setup(){ 

   Serial.begin(115200);                // UART baud rate
   delay(2000);
   pinMode(led, OUTPUT);
   pinMode(onModulePin, OUTPUT);
   switchModule();                    // switches the module ON

   for (int i=0;i< 5;i++){
       delay(5000);
   } 
   
   Serial.println("AT+CGSOCKCONT=1,\"IP\",\"myapn\"");
   Serial.flush();
   while(Serial.read()!='K');

}

void loop() { 

   Serial.println("AT+CHTTPSSTART"); //Acquires HTTPS protocol stack       
   Serial.flush();    
 while(Serial.read()!='K');

 Serial.println("AT+CHTTPSOPSE");  //Opens a new HTTPS session   
   Serial.flush();    
 while(Serial.read()!='K');

 Serial.println("AT+CHTTPSSEND=63"); //Sends HTTPS request   
   Serial.flush();    
 while(Serial.read()!='>');
   
   Serial.println("GET /index.html HTTP/1.1");
 Serial.println("Host: www.mywebsite.com");
 Serial.println("Content-Length: 0");
 while(Serial.read()!='K');

 Serial.println("AT+CHTTPSRECV=1");  //Receives HTTPS response
   Serial.flush();    
 while(Serial.read()!=',');

 data_size=0;  
 do{
   data_size*=10;
   data_size=data_size+(Serial.read()-0x30);
 }while(Serial.peek()!=0x0D);

 for(x=0;x< d ata_size;x++){
   data[x]=Serial.read();
 }

 Serial.println("AT+CHTTPSCLSE");  //Closes a new HTTPS session   
   Serial.flush();    
 while(Serial.read()!='K');

 Serial.println("AT+CHTTPSSTOP");  //Releases HTTPS protocol stack
   Serial.flush();    
 while(Serial.read()!='K');

 Serial.print(data);



   while(1);

} </syntaxhighlight>

Command and Summary

Command Response Description
AT+CHTTPACT=”***”,&& Launches a HTTP operation . *** is the server address and && is the port.
| |
AT+CHTTPSSTART OK Acquires HTTPS protocol stack.
AT+CHTTPSSTOP OK Releases HTTPS protocol stack.
AT+CHTTPSOPSE OK Opens a new HTTPS session.
AT+CHTTPSCLSE OK Closes the opened HTTPS session.
AT+CHTTPSSEND=* Sends HTTPS request. * is the length of the data in the sending buffer.
AT+CHTTPSRECV=* Receives HTTPS response after sending HTTPS request.

AT Command Tester Application

AT Command Tester is a free online tool test AT Commands and other modem functionalities of 2G modules (GPRS/EDGE) , 3G Modules (HSDPA/EVDO) and 4G Modules (LTE).AT Command Tester tool connects to the modem port of the device and can test various modem functions such as getting device information, gprs data call, voice call,http access, checking signal condition, network registration, SMS functions, SIM access, phonebook functions etc.

In the 'Port Configuration' section of the tool, users can search for available ports using the 'Find Ports' button. Then using the 'Connect' button, users can connect to the modem port of the device.

In the 'Command Mode' tab of AT Command Tester, single AT commands can be sent. The drop down list provides AT command description and examples. Users can modify the default command settings.

M2m img1.PNG


Under the 'Script Mode' tab, multiple AT commands can be sent at a time. Users can add descriptive comments and save the script on their local machine.

Script mode.PNG

Data Call

To make a data call with the modem, you need to connect to the APN of the carrier network. The carrier APN and other required information are stored in the SIM card and are referred as PDP contexts. Typically multiple PDP contexts are stored in the SIM for different call types. With the AT Command Tester you can edit/add/delete PDP contexts in a easy to use user interface.

Datacall.PNG



Typical call setup sequence,

AT+CGDCONT?

+CGDCONT: 1,"IP","epc.tmobile.com","0.0.0.0",0,0
+CGDCONT: 2,"IP","test5","0.0.0.0",0,0
+CGDCONT: 3,"IP","","0.0.0.0",0,0

OK
Checking registration status...

AT+CREG?

+CREG: 0,1

OK
The device is registered in home network.

Checking if device is already connected...

AT+CGACT?

+CGACT: 1,0
+CGACT: 2,0
+CGACT: 3,0

OK
AT+CMEE=1

OK
Attaching to network...
AT+CGATT=1

OK

Connecting...

AT+CGACT=1, 1

OK
Connect Sucessful


SMS

The SMS tab of the 'AT Command Tester' tool provides the interfaces to send SMS messages. You can also list/view/delete SMS messages stored on the SIM.

Sms.PNG
General sequence for sending SMS message,

Checking registration status...

AT+CREG?

+CREG: 0,1

OK
The device is registered in home network.

AT+CMGS="858XXXXXXX"

> Test Message with AT Command Tester�

+CMGS: 19

OK
SMS Send successful

Network Selection - This tab allows the user to manually select available networks. Modems are typically set for automatic network selection. 'Find Networks' button will command the modem to scan for available networks.

Network selection.PNG


AT+COPS command will initiate network scan in the modem,

Finding Networks. Please wait..

AT+COPS=?

+COPS: (2,"T-Mobile","T-Mobile","310260"),(1,"AT&T","AT&T","310410"),,(0,1,4),(0,1,2)

OK
Networks found


Phonebook

With the 'Phone Book' tab, you can add/delete/read phone book entries stored on the SIM,

Phone book.PNG

Getting phonebook entries..

AT+CPBR=1,99

+CPBR: 1,"*233",129,"Refill Now"

+CPBR: 2,"#999#",255,"Check Balance"

+CPBR: 3,"8878878878",129,"Test"

OK

How to buy

Here to buy 3G GPS Shield on store

Resource

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