Lab1: Blink light

Description
To build the LED blinker I first connected the LED to pin 13 and via the register the the ground and uploaded the program to the arduino. 
To make it fun, I added two leds, one red(R) one blue(B) and then put a program to switch them on in a pattern followed by the police car lights. The pattern is BB RR BB RR BR BR BR BR. I brought down the frequency to 100ms.
 

Components Used

1- Arduino

1- 220-ohm resisitor

2- LED

1- Breadboard

Code
 

int red = 13;

int blue = 7;

void setup()

{

  pinMode(red, OUTPUT);

  pinMode(blue, OUTPUT);

}

void loop()

{

  //blue blue

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  //red red

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

   //blue blue

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  //red red

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, LOW);

  delay(100);

  //blue red

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

  digitalWrite(blue, HIGH);

  digitalWrite(red, LOW);

  delay(100);

  digitalWrite(blue, LOW);

  digitalWrite(red, HIGH);

  delay(100);

}