LED Blink

Description
 
This first lab was an introduction to the Arudino programming environment. 
 
Using the Arduino Uno I constructed a basic circuit that made an LED blink.  I based my code off of the Blink LED code found on the arduino.cc site. 
 
To show that I understood the processing language I changed the original code delay from 1000 (1 s) to 3000 (3 s).  This meant that instead of the LED blinking every second, my red LED blinks every 3 seconds.    
 
Components Used
1-    Arduino Uno
1-    Mini Breadboard
1-    Red LED
1-    220 Ω Resistor
 
Code
/*
 
 Hello World!
 LED lab #1
 
 using LED color
 Resistance 220 ohm
 
 */
 
int ledPinR = 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()
{
  digitalWrite(ledPin,HIGH);                   //sets the LED on
  delay(3000);                                      //waits for three seconds
  digitalWrite(ledPin,LOW);
  delay(3000);
 
}