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You are here: Home / Topics / USB GSM modem (Siemens TC35i) interface with PIC18F4550

USB GSM modem (Siemens TC35i) interface with PIC18F4550

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Microcontroller › PIC › USB GSM modem (Siemens TC35i) interface with PIC18F4550

  • This topic has 1 reply, 2 voices, and was last updated 12 years, 5 months ago by AJISH ALFRED.
Viewing 2 posts - 1 through 2 (of 2 total)
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    Posts
  • December 27, 2012 at 3:28 pm #4795
    DDDD
    Participant

    Hi all ,

     

    I am doing project on PIC18F4550 with USB GSM modem(Siemens TC35i) using RS232 serial port and PC.

    That is all i have this USB GSM modem.

     

     

    – controlling the 8 relays turning on/off via sending SMS from my phone to USB GSM modem

     

     

    My first problem is how to connect USB GSM Modem with PIC18F4550.

     

     

     

    Does this connect is correct or wrong?

     
    USB GSM modem <—> USB to RS232 converter <—> PIC18F4550

     

     

     

     

     

    I need immediate help in writing the code in C. I’m currently using PIC CCS C Compiler. 

      

                               pls, pls, pls help me…

     

     

    January 11, 2013 at 5:36 pm #8935
    AJISH ALFRED
    Participant

    That connectio is correct. Could you please tell us why you need this connection connect the PC<—>usb<—>PIC

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