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problem is sending sms with 8051 by siemens C55

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Moderators: Ajay, Junied , abbas1707, Arun Kumar V, pdi33, Shailesh NAYAK, ۞ TPS ۞, shyam, sashijoseph

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cllunlu

Wed May 07 2008, 06:52PM

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ajay I have tried your suggestion.But I am failed.Cell phone doesnt give me anything.Where is my mistake plsease help me

celalunlu

abbas1707

Thu May 08 2008, 06:14AM

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problem can be in micro-mobile connection.can't say more about it

A Thousand Miles Journey Starts With a Single Step.

cllunlu

Thu May 08 2008, 06:16AM

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my schematic and my codes are correct?

celalunlu

abbas1707

Thu May 08 2008, 06:23AM

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try to send only 1 command..like atd , tell about response you get

A Thousand Miles Journey Starts With a Single Step.

sashijoseph

Thu May 08 2008, 01:42PM

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Have you tried with the external pullup?

Let there be music........

Ajay

Thu May 08 2008, 05:05PM

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I gave you two suggestions which one you tried?
replacing ok with OK?

try abbas's suggestion too.. no need to wait for OK.. just try sending AT commands.

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cllunlu

Thu May 08 2008, 05:10PM

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ajay I havent anytime to do it.Have you any projects that is finished about it.please help me.I have many class too.I havent more times
please help me.

celalunlu

Ajay

Thu May 08 2008, 05:34PM

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edit your main for a while and replace it with this

CODE:

void main()

{

        P2_0=0;

        P2_1=0;

        while(1) {

                if(P1_0==0) {

                        init();

                        sendString("AT");

                        sendChar(0x0D);

                        sendString("ATE0");

                        sendChar(0x0D);

                        P2_0=1;

                        sendString("AT+CMGS=19");

                        sendChar(0x0D);

                        P2_1=1;

                        sendString("079109459208003311000C910945664173350000AA05E8329BFD06");

                        //sms center no:+905429800033, destination number:+905466143753, message:"HELLO"

                        sendChar(0x1A);

                        sendChar(0x0D);

                }

        }

}

comment the function which you are not using...
like checkOK and all.. then try on controller again.

waiting for response.

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cllunlu

Thu May 08 2008, 05:42PM

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just I will change my main function?and but in main functiom havent delay when transmitting at commands

celalunlu

cllunlu

Thu May 08 2008, 06:01PM

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I didnt understand external puul-up.I know just need when we use P0 port.we have to use external pull up.for P2 port doesnt need external pull up ,doesnt
it?

celalunlu