long SequenceNum;

void setup() {
  Serial.begin(9600);
  Serial2.begin(9600);
  SequenceNum = 0;
  delay(1000);
  Serial.println("Starting");
}

void loop() {


    Serial.print("Sending Command: M408 S2 R");
    Serial.println(SequenceNum, DEC);

    Serial2.print("M408 S2 R");
    Serial2.print(SequenceNum, DEC);
    Serial2.println();
    //Serial2.print('\n');

    Serial.print("Received: ");
    Serial.println(Serial2.read());

    delay(500);
    SequenceNum = SequenceNum + 1;

}