Problem in interfacing SIM900 with Arduino UNO

Projects Networking, Protocols, and Devices
1

Hello all,
I am trying to send sms from SIM900 not GSM sheild, but SIM900 send AT Commands too in the text message.
I have receive following text in message:

AT+CMGF=1
AT + CMGS = "+917045610408"
Hello World

please help me out

I have used following programe

#include <SoftwareSerial.h>

SoftwareSerial SIM900(9, 10);

void setup()
{
SIM900.begin(2400);
delay(2000); // give time to log on to network.
SIM900.println("AT+CMGF=1\r");
delay(100);
SIM900.println("AT + CMGS = "" + destinationNumber +""");
delay(100);
SIM900.println(outMessage);
delay(100);
SIM900.println((char)26);//ctrl+z
delay(100);
}

void sendSMS()
{
SIM900.println("AT+CMGF=1\r");
delay(100);
SIM900.println("AT + CMGS = "" +917045610408""");
delay(100);
SIM900.println("Hello World");
delay(100);
SIM900.println((char)26);//ctrl+z
delay(100);
}
void loop()
{
sendSMS();
do
while(1);

}

2

Where exactly do you terminate your message? It looks like setup starts sending a message, then loop() executes sendSMS(), which is sending your weird message. This is my guess, but it makes sense.

Also, you clearly did not include all of your code, where is destinationNumber and outMessage? won't those give you errors if you have not declared them?

3

Do not cross-post. Other thread removed.