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Serial Communication- sending a AT<cr> command?

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Joined: 17 May 2005
Posts: 213

Serial Communication- sending a AT<cr> command?

Posted: Mon May 08, 2006 1:54 am

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Hi

I am trying to send an

Code:

AT<cr>

into my serial device with no success.

I have managed to send a

Code:

#-

and a

Code:

$*

into the serial port, but for some reason the AT<cr> does not want to be sent.

Can someone please tell me how to send the AT<cr>?

I have tried "AT\n", "AT\r", "AT\r\n", "AT\n\r" none worked.

Thank you in advance.
a.

smxabi

Joined: 29 Apr 2006
Posts: 14
Location: Spain


Posted: Mon May 08, 2006 7:59 am

If you have well building your hardware send: Printf("AT/n"); It has to work

Mark

Joined: 07 Sep 2003
Posts: 2838
Location: Atlanta, GA


Posted: Mon May 08, 2006 8:01 am

For AT<CR> the proper string would be "AT\r"

Guest


Posted: Mon May 08, 2006 8:55 am

Thank you Mark - it works! a.

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