Interfacing sim card with 89C51 & sending sms through it

Discussion in 'Embedded Systems and Microcontrollers' started by aamirali, Feb 11, 2014.

  1. aamirali

    Thread Starter Member

    Feb 2, 2012
    415
    1
    How to interface sim card with microcontroller & then send sms through it
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,739
    759
    Wire up the sim holder to uC port.
    Wire up the GSM hardware to the uC port.
    Wire the keypad to uC
    Write the code for the uC
    Oh wait I forgot. Wire up the LCD to uC port.
    Again write the code to display data in LCD.

    Insert SIM with proper carrier.
    Put some money in the SIM .

    Then send the SMS.

    Isn't that simple.
     
  3. Arm_n_Legs

    Active Member

    Mar 7, 2007
    183
    10
    Would be simpler to just use a GSM modem. The microcontroller communicates with the GSM modem via a serial link.
     
  4. saz

    New Member

    Feb 19, 2014
    1
    0
    i need code in C for sending and receiving sms through GSM modem sim900.
     
  5. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,739
    759
    Answer is simple.
    We do not write codes and give them away.
    You have to write and show us then we can correct them

    And hijacking thread is a NO NO !
     
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