problem with sending E-mail from arduino uno and sim900 standalone mode

char data[1024];
int led = 13;
int onModulePin = 2;
// the pin to switch on the module (without press on button)
int x = 0;
char name[20];
char server=“mail.o2online.de”;
char port=“25”;
void switchModule(){
digitalWrite(onModulePin,HIGH);
delay(2000);
digitalWrite(onModulePin,LOW);
}
void setup(){
Serial.begin(115200); // UART baud rate
delay(2000);
pinMode(led, OUTPUT);
pinMode(onModulePin, OUTPUT);
switchModule(); // switches the module ON
for (int i=0;i < 4;i++){
delay(5000);
}
Serial.println(“AT”);
delay(700);
Serial.println(“AT+CMGF=1”);
delay(700);
Serial.println(“AT+CSCS=“GSM””);
delay(700);
Serial.println(“AT+CGATT=?”);
delay(700);
Serial.println(“AT+CIPSRIP=1”);
delay(700);
Serial.println(“AT+CGQREQ=1,0,0,0,0,0”);
delay(700);
Serial.println(“AT+CGCONT=1,“IP”,“INTERNET””);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);

delay(700);
Serial.println(“AT+CSTT=“INTERNET”,”",""");
delay(700);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);

Serial.println(“AT+CIICR”);
delay(700);
Serial.println(“AT+CIFSR”);
delay(700);
Serial.println(“AT+CIPSTATUS”);
delay(700);
Serial.println(“AT+CIPMUX?”);
delay(700);
Serial.println("AT+CIPSTART=“TCP”,“mail.o2online.de”,“25"”); //TCP connection in id 0
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(10000);
do{ //waits for connection
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data

Serial.print(“helo mail.o2online.de”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.print(“Auth login”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}
while(Serial.read()!=’>’);
delay(7000);
Serial.print(“xxxx”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.print(“xxxx”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.print(“MAIL FROM:xxxxxxxx@o2online.de”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.print(“RCPT TO:”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.print(“DATA”);
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
Serial.println(“AT+CIPSEND”); //sending data
do{
while(Serial.available()==0);
}while(Serial.read()!=’>’);
delay(7000);
Serial.println(“my first mail.”);
Serial.println(".");
Serial.println(".");
Serial.write(0x1A); //EOL character
Serial.write(0x0D);
Serial.write(0x0A);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);

Serial.println(“AT+CIPCLOSE”);
do{
while(Serial.available()==0);
}while(Serial.read()!=‘K’);
delay(7000);
}
void loop(){
delay(500);
digitalWrite(led,HIGH);
delay(500);
digitalWrite(led,LOW);
}

can somebody help me…

  1. Use the code tags! Without them your code is a mess to look at and it may be wrong because the tag processor is hiding parts of it.

  2. Explain what your problem is.

I tried using AT commands from SW serial then it works but when I try to implement the same commands from arduino,It doesnt work. I need a program which can send e-mails from gprs shield using Arduino and not the serial port of pc.

Edit your original post and add code tags! I won't look at the code without the code tags because I don't wanna waste my time finding errors caused by the tag parser of the forum.