ok heres basic arduino programming to get your led on pin 13 to blink... and we will call this sc lesson 1 arduino programming...
/*
sithconcepts program
*/
int ledPin = 13;
void setup()
{
//initialize pins as outputs
pinMode(ledPin, OUTPUT);
}
void loop()
{
digitalWrite(ledPin, HIGH);
delay(1000);
digitalWrite(ledPin, LOW);
delay(1000);
}