My first Arduino project is pretty simple.

Here's the video:

</embed>

Here's the source:

int ledPin1 = 13;
int ledPin2 = 12;

void setup()
{
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
}

void loop()
{
  digitalWrite(ledPin1, HIGH);
  digitalWrite(ledPin2, LOW);
  delay(500);
  digitalWrite(ledPin2, HIGH);
  digitalWrite(ledPin1, LOW);
  delay(500);
}

Ain't open source grand?