Printing the messages having problem in SIM 900A to Arduino

Question

I have added my Arduino code for reading messages from GSM SIM900A using Arduino. But the output is showing something different. Please help me.

#define SERIAL_BUFFER_SIZE 256
char msg;
void setup() {
 Serial.begin(9600); // Setting the baud rate of GSM Module
 delay(60000);
 Serial.println("AT");
 delay(1000);
 Serial.println("AT+CREG=1");
 delay(1000);
 Serial.println("AT+CMGF=1"); // set SMS mode to text
 delay(1000);
 Serial.println("AT+CMGR=\"ALL\"");
 delay(1000);
 Serial.println("AT+CMGR=\"ALL\"");
 delay(1000);
 while ( Serial.available() > 0) Serial.read(); // removing serial buffer values
 Serial.println("AT+CMGR=1");
 delay(2000);
}
void loop() {
 while (Serial.available() > 0) {
 msg = serial.read()
 Serial.print(msg);
 }
}

This is the output:

+CMGR: "REC READ","+91xxxxxxxxxx","","16/07

Answer 1

Hello Guys i found the issue. Serial.read() function reads only 62bytes. After i have update the serial buffer size in library file C:\Program Files (x86)\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial.H ... It shows the messages which is stored in serial buffer.

• aaa: Please note that you may want to check/handle the responses on these commands.
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