AT COMMANDS - URGENT !!!!!!!

Hello there, first of all, thank you very much to all who answer questions in these forums.

I have a super basic problem and I hope that is simple to answer.

I am new to using arduino, and I can not send AT commands on the serial monitor.

No matter what I put the serial monitor is blank. (AT, AT + RST, etc)

I sent you a super simple example of my code to see where is the problem.

EXAMPLE CODE:

void setup()
{
Serial.begin(9600);
Serial.println("AT Commands Begin");
}

void loop(){}

To simply send AT commands to a device connected to the Arduino use a Serial Relay program. What you send from Serial Monitor gets sent to the device, any response echoed back to the screen.

dannable:
To simply send AT commands to a device connected to the Arduino use a Serial Relay program. What you send from Serial Monitor gets sent to the device, any response echoed back to the screen.

OK.... i know that's the logic sense of this device.

But, when y put in the Serial Monitor field any command like AT o AR+RST
the answer is allways nothing

void setup()
{
Serial.begin(9600);
Serial.println("AT Commands Begin");
}

void loop()
{
  if (Serial.available ())
 {
    Serial.print ((char)Serial.read());
 }
}

BTW, it's not urgent, and your "!" is sticking

AWOL:

void setup()

{
Serial.begin(9600);
Serial.println("AT Commands Begin");
}

void loop()
{
  if (Serial.available ())
{
    Serial.print ((char)Serial.read());
}
}




BTW, it's not urgent, and your "!" is sticking

OK, Now i can write in the monitor, but i don't have any response

Response from where?

Not that I doubted you AWOL, but I've loaded it up and it works exactly as I would have expected.

dannable:
Not that I doubted you AWOL, but I've loaded it up and it works exactly as I would have expected.

Go on, you can admit it - you had a little doubt, didn't you? (I would've)

AWOL:
Response from where?

when i type "AT" the serial MONITOR must reponse "OK"....

this is not happening.

Why must it? Unless you have some device attached and send the command to it then you won't get a reply.

Perhaps if you explain what you are trying to do then more assistance might be forthcoming.