[SOLVED] SIM300 communication problem

RDY

+CFUN: 1

+CPIN: READY

Call Ready

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#include <NewSoftSerial.h>
NewSoftSerial cell(4,5); // 4 is RX and 5 is TX
char incoming_char=0;
void setup()
{
//Initialize serial ports for communication.
Serial.begin(9600);
cell.begin(9600);
Serial.println("Starting SIM300 Communication...");
}
void loop()
{
//If a character comes in from the cellular module...
if(cell.available() >0)
{
incoming_char=cell.read(); //Get the character from the cellular serial port.
Serial.print(incoming_char); //Print the incoming character to the terminal.
}
//If a character is coming from the terminal to the Arduino...
if(Serial.available() >0)
{
incoming_char=Serial.read(); //Get the character coming from the terminal
cell.print(incoming_char); //Send the character to the cellular module.
}
}

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doec said:

The AT command should be ended with "\r" character in order to get response from SIM300.
Regards,
doec

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