arduinoserialcodethingy

String readString;

void setup() {
  Serial.begin(115200);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(9, OUTPUT);
  pinMode(10, OUTPUT);
  pinMode(11, OUTPUT);
  pinMode(12, OUTPUT);
  pinMode(13, OUTPUT);
  Serial.println("Arduin-Serial thingy - made by TheR ;)");
  Serial.println("type 'help for a list of commands");
}

void loop()
{

  if (readString.length() >0)
  {
    //prints the incomming serial text
    Serial.println(readString);
    //Command Handling

    if (readString == "help")
    {
        Serial.println("pin(2-13)(on or off) - e.g, 'pin13on' or 'pin7off'");
    }

    //Pins on
    //0x1 is short for HIGH
    if (readString == "pin2on") { Pin(2, 0x1); }
    if (readString == "pin3on") { Pin(3, 0x1); }
    if (readString == "pin4on") { Pin(4, 0x1); }
    if (readString == "pin5on") { Pin(5, 0x1); }
    if (readString == "pin6on") { Pin(6, 0x1); }
    if (readString == "pin7on") { Pin(7, 0x1); }
    if (readString == "pin8on") { Pin(8, 0x1); }
    if (readString == "pin9on") { Pin(9, 0x1); }
    if (readString == "pin10on") { Pin(10, 0x1); }
    if (readString == "pin11on") { Pin(11, 0x1); }
    if (readString == "pin12on") { Pin(12, 0x1); }
    if (readString == "pin13on") { Pin(13, 0x1); }

    //Pins off
    //0x0 is short for LOW
    if (readString == "pin2off") { Pin(2, 0x0); }
    if (readString == "pin3off") { Pin(3, 0x0); }
    if (readString == "pin4off") { Pin(4, 0x0); }
    if (readString == "pin5off") { Pin(5, 0x0); }
    if (readString == "pin6off") { Pin(6, 0x0); }
    if (readString == "pin7off") { Pin(7, 0x0); }
    if (readString == "pin8off") { Pin(8, 0x0); }
    if (readString == "pin9off") { Pin(9, 0x0); }
    if (readString == "pin10off") { Pin(10, 0x0); }
    if (readString == "pin11off") { Pin(11, 0x0); }
    if (readString == "pin12off") { Pin(12, 0x0); }
    if (readString == "pin13off") { Pin(13, 0x0); }
    readString="";
  }
}

void Pin(int pinnumber, int HighOrLow)
{
    if (HighOrLow == 0x1)
    {
        digitalWrite(pinnumber, 0x1);
    }
    else
    {
        digitalWrite(pinnumber, 0x0);
    }
}

//sets readString as the incomming serial data
//serialEvent is a built in method for arduino, and fires when data is received. Byte by Byte.
void serialEvent()
{
  while (Serial.available())
  {
    delay(3);
    char c = Serial.read();
    readString += c;
  }
}