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want to send an sms from nokia 3310 from 8051

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thannara123

thannara123

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hello experts .,
I want to make project that send an sms from a nokia mobile using 8051 (when certain condition comes in controller attached sensor )
i have googled a lot
but am confused where i start .
i have no experiences regarding hyper terminal

please help me where i will start
any sample c code for that
 

#include<reg51.h>

unsigned char string[26]="AT+CMGS=9898455102\rHelloo";
unsigned int i;
void delay(unsigned int value)
{
int x,y;
for(x=0;x<=value;x++)
for(y=0;y<=1275;y++);

}




void main()
{

PCON=PCON|0x80;
TMOD=0x20; //Enable Timer 1
TH1=0XFD; //baurd rarte 9600
SCON=0x50;
TR1=1;

{
for(i=0;i<27;i++)
{

SBUF=string;
while(TI==0);
delay(20);
TI=0;
}
SBUF=0x1A;
while (TI==0);
TI=0;

}


}

I tested above code for sending massage from controller to any mobile phone. with baurd rate 19200 u can modify string on code for receiving massage.
change mobile number in string
 
thanks i will check it out soon
can you provide the circuit diagram
 

I do not have now as document. i ll make later if i get time.you want controls relays with gsm phone?
 

no want to send SMS from mobile using controller 8051
 

thannara123 said:
want to send SMS from mobile using controller 8051
Click to expand...
If you can connect your modem to the RS232 PC port for the first tests, you will spare a lot of time because this is the simplest thing you can do. The following tutorial is really nice:
Send SMS using AT commands

If you cannot make the RS232 connection, then execute the tutorial's commands in the same order, from 8051's UART.


Alexandros
 

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