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You are here: Home / Topics / 2 question for help

2 question for help

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Microcontroller › Arduino › 2 question for help

  • This topic has 1 reply, 2 voices, and was last updated 6 years, 9 months ago by Hari Prasaath K.
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  • March 2, 2016 at 11:35 am #4335
    roba
    Participant
    Hi all,
    i have 2 question
     
    i am using sim900 with At commands 
     
    one question is
    does the AT+CSQ effects the GSM/GPRS signal or only the network strength signal?
     
    second question
    when i use AT+CGREG sometimes i get answer of AT+CGREG 0.0 which means that i cant get a GSM signal.
    But if i use instead using  AT+CGREG i use AT+CGATT and then i get A gprs and it works fine ,
    is there any difference ?
     
    Thanks.
    September 5, 2018 at 4:55 pm #14900
    Hari Prasaath K
    Participant

    The two commands has different properties

      AT+CGREG returns the registration details of the device and the command and the command AT+CGATT is used to attach or detach the device to the pocket domain services.

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