SIM808 shield on Arduino

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  • #24609 Reply

    guillaume

    dear all

    I tried to connect ATCommandTester with my SIM808 shield throw my Arduino Uno, however connection is rejected.

    Sending AT query..
    Disconnecting port COM3.

    Retry connecting COM3 at 9600 with flow control enabled

    Sending AT query..
    Disconnecting port COM3.

    Retry connecting COM3 at 9600

    Sending AT query..
    Disconnecting port COM3.

    baud and pin connection are the same as I use on my working Arduino sketch, and are the same as viewed on the example page.

    Is there any verification I can do to connect it?

    thanks a lot

    #25895 Reply

    Admin
    Keymaster

    Hi,
    Did you check the below instructions page?

    Using AT Command Tester with Arduino boards

    M2MSupport

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