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GSM based simple project

Discussion in 'General Electronics Discussion' started by uydarp, Apr 28, 2013.

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  1. uydarp


    Apr 28, 2013
    i wish to control a servo using a cellphone.
    How it should work.
    1. A call from a know phone number calls a sim900 circuit.
    2. Microcontoller check if the call is from a know phone number, if yes call is answered and a password is expected, DTMF decoder is used to check the password
    3. If the password is correct the servo motor turns 180 degrees n back to 0
    degrees, finish!

    i have made a working model using arduion UNO & icomsat gsm shield,

    now i want to build the same circuit by manually connecting all the components instead of arduino n shield on a breadboard

    How should i go about doing it? what all components will i need?

    thanks in advance!
  2. BobK


    Jan 5, 2010
    You will need a microcontroller and a GSM module.

    Check out the schematics of the GSM shield and how it connects to the Arduino for some idea.

  3. sherazi


    Mar 8, 2010
    connect your microcontroller ,and modem RX-TX and tx
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