Member #324406

Member Since: May 14, 2012

Country: United States

  • Hi all, I am working on a project to send SMS. I am connecting my Cellular shield to a PC and using Hyperterminal.

    Cellular powered and Start the Communication…

    +SIND: 1

    +SIND: 10,“SM”,1,“FD”,1,“LD”,1,“MC”,1,“RC”,1,“ME”,1

    +SIND: 11

    +SIND: 3

    +..IND: ..S.

    The last +SIND should be +SIND: 4 but it isn’t !!

    I have tried sending different AT commands after initialization process, however the module response is Error: 4. Occasionally I get “OK” response if I type just “AT” 2 or 3 times but I get Error: 4 for any other commands.

    Just to add, I have double checked power source and antenna and they are all fine.

    Appreciate any help!


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