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You are here: Home / Topics / Interfacing of GSM SIM908 and arduino mega 2560

Interfacing of GSM SIM908 and arduino mega 2560

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Microcontroller › Arduino › Interfacing of GSM SIM908 and arduino mega 2560

  • This topic has 6 replies, 5 voices, and was last updated 8 years, 3 months ago by rekha.
Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • January 25, 2014 at 5:08 am #2823
    Amit Raijade
    Participant

    hello frnds..

     

    I have interfaced above mentioned two module….

     

    My hardware connection :-

     

    TX of arduino connected to RX of sim908 and vice versa.

     

    I have established GPRS connection with sim908 .

    I am using HTTP protocol to send data to the server.

     

    Problems:-

     

    In first attempt the url gets hit and data is received by server.

     

    At the 2nd attempt  when I try to send data to server, I get this error on Serial moniter “Signal connection error.”

     

    Kindly help me out.

     

    thanx in advance. 

    January 25, 2014 at 10:06 am #10886
    AJISH ALFRED
    Participant

    Hi,

    It must be something related with the network. Have tried changing the sim card, service provider and all?

    January 25, 2014 at 10:34 am #10889
    Amit Raijade
    Participant

    I have tried with 2 service provider…

     

    same problem is there…

     

    kindly suggest any other solution…

    March 8, 2014 at 4:43 pm #11247
    Ganesh Selvaraj
    Participant

    Have you checked the signal strength? (Using AT+CSQ) ….. i once had a faulty modem whose signal drops after using it for a while (like 5 min.) and that happened with some specific SIM cards 

    March 20, 2014 at 11:14 pm #11345
    Hamid
    Participant

    Good Morning…. Programmers or Engineering Humans :D

    I am Hamid

    i just want to ask something with regards to the usage of the GSM

     

    after GSM receives an information or a SMS is it possible that the GSM could send a random code without the use of human existence for short is their a possible program for the GSM that could send SMS to that user it is just like a confirmation code that user receives :D thank you hope for the positive response… .

    March 21, 2014 at 12:06 pm #11352
    AJISH ALFRED
    Participant

    Hi Hamid,

    The incoming sms will give the sender mobile number also to the gsm module. Store that number and send an sms to that same number. Suggest you to have a look at the gsm interfacing project done on various microcontrollers, especially arduino. You can find the projects from the top most tab in this page EG LABS >> MICROCONTROLLERS

    April 21, 2014 at 12:19 pm #11606
    rekha
    Participant

    Hello friends

     

    subject: Interfacing Problem of Arduino Mega2560 with Sim 900A Module

     

     

    I am trying to interface Arduino Mega with Sim900A module since last two days. And i have come to know that Arduino Mega is not supporting the software serial library of arduino.

     

    Can anybody help me out that which pins should i use to interface Arduino Mega2560 with Sim 900A module?

     

     

    Hoping for a positive response.

     

    Thank you

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