GPRS Shield -EFCom in Store Now

Wireless-EFCom-03

Hi Guys, Thanks for your interest in  EFCom GPRS Shield. GPRS Shield – EFCom is an ultra compact and reliable wireless module. This GPRS Shield is compatible with all boards which have the same form factor (and pinout) as a standard Arduino Board. EFCom is based on SIM900 4 Frequency GPRS module.

 

The GPRS Shield is configured and controlled via its UART using simple AT commands. Just plug this shield on the Arduino/ Freaduino board, you could easy to use AT command control EFCom Shild. You can use the 2 jumper block to connect the SIM900 URAT post to any pins within D0-D3(for Hardware/Software serial port). There is a switch on board , you can use it to select the connection of the UART port or Debug port , even be set on on Arduino, but by the switch and jumper block, the SIM900 can be connect to PC via FT233RL.

The shield allows you to achieve this via any of the three methods:

  • Short Message Service
  • Audio
  • GPRS

We have layout of all of the SIM900′ pins to the 2.54 standard pitch. Not just the UART port and debug port be layout. The super capacitor power supply for the RTC. The RTC can work more than 1 days by the power supply of super capacitor. So the SIM900 can keep the time and day when power off.

EFCom not only can use the S_PWR button for power on , but also can use the digital pin(D10) of Arduino to power on and reset(D9) the SIM900 module.

Feature

  • Fully compatible with Arduino / Freaduino and Mega.
  • Free serial port connecting, you can select Hardware Serial port(D0/D1) control or Software Serial port(D2/D3) control it.
  • SIM900 all pins breakout. Not just the UART port and debug port be layout, but also all pins on SIM900 be layout to the 2.54 standard pitch.
  • Super capacitor power supply for the RTC.
  • EFCom not only can use the button for power on , but also can use the digital pin of Arduino to power on and reset the SIM900 module.
  • Quad-Band 850/ 900/ 1800/ 1900 MHz
  • GPRS multi-slot class 10/8
  • GPRS mobile station class B
  • Compliant to GSM phase 2/2+
    – Class 4 (2 W @850/ 900 MHz)
    – Class 1 (1 W @ 1800/1900MHz)
  • Control via AT commands (GSM 07.07 ,07.05 and EFCOM enhanced AT Commands)
  • Supply voltage range : 3.1 … 4.8V
  • Low power consumption: 1.5mA(sleep mode)
  • Dimension:68.33×53.09mm(Same dimension of Arduino main board)

Top-view

 

Bottom-view

 

 

Make sure add using 9V Charger for power supply for your Arduino board and EFCom, The 9V Charger we will provide to you with EFCom Shild. Because of the power supply range of SIM900 is from 3.2V to 4.8V. The transmitting burst will cause voltage drop and the power supply must be able to provide sufficient current up to 2A. The USB port can not supply such a large current.

 

LCD 5110

Order List:

 

Please visit our wiki page for more info about this product. It will be appreciated if you can help us improve the documents, add more demo code or tutorials.

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12 Comments

  1. Alfred

    Hello, I can send messages using the shield but when I make a call I can stablish it, but, I can only hear noise from the phone I receive the call, in the shield I can’t hear nothing, any suggestions?

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    1. Kathy Yang

      Hi Alfred,

      Check if you plugged in the wrong earphone. It requires computer headphones.

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  2. begin currency trading

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  3. Rupert Russell

    I have an Arduino UNO and this shield. I can get the Shield to work OK using a Software Serial connection and a terminal program see:

    http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield#Step_2:_Sending_a_text_message_.28SMS.29

    I have had no luck getting the shield to work using the Hardware UART:

    http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield#Sending_SMS:_using_Hardware_UART

    has anybody managed to get this to work?

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  4. Jorge

    this is wrong
    EFCom not only can use the S_PWR button for power on , but also can use the digital pin(D10) of Arduino to power on and reset(D9) the SIM900 module.

    In another section of the web says

    EFCom not only can use the S_PWR button for power on , but also can use the digital pin(D6) of Arduino to power on and reset(D5) the SIM900 module.
    And that if it is right.

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    1. Rupert Russell

      I am able to turn the shield on with digital pin(D6) set to HIGH.

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  5. Jorge

    Esto esta mal
    EFCom no sólo se puede utilizar el botón S_PWR por el poder, pero también puede usar el pin digital (D10) de Arduino para encender y restablecer (D9) el módulo SIM900.

    En otra parte de la pagina dice

    EFCom not only can use the S_PWR button for power on , but also can use the digital pin(D6) of Arduino to power on and reset(D5) the SIM900 module.

    Y esto si es lo correcto.

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  6. igorgumush

    hi i am using the gprs shield
    and it’s working great on arduino UNO
    but it’s not working with arduino MEGA
    it not should to work ? or i need to do something else when I work with it

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    1. Ludy

      I need your help.
      I use gprs Shield and arduino UNO.
      I have read the tutorial on http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield. but i can’t make it work..

      Thanx before.

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      1. Rupert Russell

        Make sure that you have at least 6V DC input to the Arduino. Make sure you have network connection the network status light should blink every 3 seconds. Use a G2 SIM not a G3 SIM.

        I have managed to get my board to work using Software serial commands using the following code:

        //Serial Relay – Arduino will patch a
        //serial link between the computer and the GPRS Shield
        //at 19200 bps 8-N-1
        //Computer is connected to Hardware UART
        //GPRS Shield is connected to the Software UART

        #include

        SoftwareSerial mySerial(2, 3);

        void setup()
        {
        mySerial.begin(19200); // the GPRS baud rate
        Serial.begin(19200); // the GPRS baud rate
        }

        void loop()
        {
        if (mySerial.available())
        Serial.write(mySerial.read());
        if (Serial.available())
        mySerial.write(Serial.read());

        }

        see: http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield#Step_2:_Sending_a_text_message_.28SMS.29

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    2. Rupert Russell

      Have you managed to get the Hardware UART to work with the UNO I can only get the Software connection to work.

      I want to get this to work:
      http://www.elecfreaks.com/wiki/index.php?title=EFCom_GPRS/GSM_Shield#Sending_SMS:_using_Hardware_UART

      Can you tell me the Jumper settings you are using if you can get this to work?

      Kind regards,

      Rupert.

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      1. robi (Post author)

        Dear sir, usually we use D2/D3 for software serial port IO.

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