arducar

int control=2;
char procitan=0;
void setup() {
  // initialize digital pin 13 as an output.
  pinMode(control, OUTPUT);
  Serial.begin(9600);
}

// the loop function runs over and over again forever
void loop() {

 while (Serial.available())
  {
  procitan=Serial.read();
  if(procitan=='w')
  {
      digitalWrite(control, HIGH);
      Serial.println("High");
    }

  if(procitan=='a')
  {
      digitalWrite(control, LOW);
      Serial.println("low");

    }
    if(procitan=='q')
  {

      digitalWrite(control, HIGH);
      delay(2000);
      digitalWrite(control, LOW);
      Serial.println("low");

    }

}
}