at+cnmi parameters to receive sms.

[project_quest]

Hello,
i'm trying to receive an sms on to the SIM300 gsm module using arduino uno , but it works only for one set of cnmi paramters.For the other parameters i get junk value on the serial monitor screen. As per another query on the forum,i tried putting all the AT commands in the loop function,but to no avail.
Does anybody have any suggestions to remedy this problem?
Thanks in advance!

 

[DineshSL]

Can you show the code used ?

 

[project_quest]

Hello DineshSL,
Here is the code that i have written along with a screen shot of output .The time ,date and sender's name appear but the content of the message is junk.Kindly help

#include <SoftwareSerial.h>
SoftwareSerial mySerial(9,10); 
char incomingByte=0; 
void setup() 
{
       Serial.begin(9600);  
      mySerial.begin(9600);   
      //pinMode(13, OUTPUT); 
      mySerial.println("AT");
      delay(1000);
      mySerial.println("AT+CMGF=1");
      delay(2000);  
      //mySerial.println("AT+CSMP=17,167,0,0");
      mySerial.println("AT+CNMI=2,2,0,1,0"); 
      delay(1000);
     
     }

void loop()

{   
mySerial.write("AT+CMGL=");
mySerial.write(34);
mySerial.write("ALL");
mySerial.write(34);
mySerial.write(13);//to move down one line
mySerial.write(10);//to place cursor on left margin.Equivalent to pressing "enter"
delay(1000);


        while (mySerial.available() > 0) 
        {       
               incomingByte = mySerial.read();
               if(incomingByte!='\n')
               {
               Serial.print(incomingByte);
               }
               
               if(incomingByte=='\n')
               {
                 Serial.print(incomingByte);
                 Serial.write(13);
                 Serial.write(10);
               }
         
      

        }
}

 

[DineshSL]

Can you try with different baud rate ?