// Very basic and very inefficient code.
// Next steps: 
//   * Use an array for the leds.
//   * Put similar code in a function.

int redLedPin = 6;
int blueLedPin = 5;
int greenLedPin = 4;
int yellowLedPin = 3;
int orangeLedPin = 2;

void setup()
{
  Serial.begin(115200);
  Serial.println("Hello");

  pinMode(redLedPin, OUTPUT);
  pinMode(blueLedPin, OUTPUT);
  pinMode(greenLedPin, OUTPUT);
  pinMode(yellowLedPin, OUTPUT);
  pinMode(orangeLedPin, OUTPUT);
}

void loop()
{
  // random is 0,1,2,3,4
  int led = random(0,5);

  if(led==0)
  {
    Serial.println("Red");
    for(int i=0; i<3; i++)
    {
      digitalWrite(redLedPin,HIGH);
      delay(500);
      digitalWrite(redLedPin,LOW);
      delay(500);
    }
  }
  else if(led==1)
  {
    Serial.println("Blue");
    for(int i=0; i<3; i++)
    {
      digitalWrite(blueLedPin,HIGH);
      delay(500);
      digitalWrite(blueLedPin,LOW);
      delay(500);
    }
  }
  else if(led==2)
  {
    Serial.println("Green");
    for(int i=0; i<3; i++)
    {
      digitalWrite(greenLedPin,HIGH);
      delay(500);
      digitalWrite(greenLedPin,LOW);
      delay(500);
    }
  }
  else if(led==3)
  {
    Serial.println("Yellow");
    for(int i=0; i<3; i++)
    {
      digitalWrite(yellowLedPin,HIGH);
      delay(500);
      digitalWrite(yellowLedPin,LOW);
      delay(500);
    }
  }
  else if(led==4)
  {
    Serial.println("Orange");
    for(int i=0; i<3; i++)
    {
      digitalWrite(orangeLedPin,HIGH);
      delay(500);
      digitalWrite(orangeLedPin,LOW);
      delay(500);
    }
  }
}