Description

 For this project, I used Arduino 0009 software to compile a simple LED-blink code, which was then uploaded via usb to an arduino board.  An LED light was then inserted into pin 13 on the Arduino (which, on my version of the board, is equipped with a 1k resistor).  I didn't skip this step because... I have no breadboard.  The lab was a success.  I changed the duration of the blink a bit, opting for more dark time than light time; the LED was really bright. 

Code

int ledPin = 13;                // LED connected to digital pin 13

void setup()                    // run once, when the sketch starts
{
  pinMode(ledPin, OUTPUT);      // sets the digital pin as output
}

void loop()                     // run over and over again
{
  digitalWrite(ledPin, HIGH);   // sets the LED on
  delay(1000);                  // waits for a second
  digitalWrite(ledPin, LOW);    // sets the LED off
  delay(3000);                  // waits for 3 seconds
}

Visual Evidence

LED off: in a former life, I was also a terrible photographer

LED on: fun stuff