Introduction: Arduino Drag Race Light Tree

I'm new to Arduino so I was excited to try this out.  I also Drag race 1/24 scale slotcars.  I built a homemade 24' drag strip to practice. I need the tree to be the same as the race track  so my reaction time might  improve.  I'm not sure if I have the timing right, but it's getting close. See the video below.

The Arduino = Arduino UNO purchased at Radio Shack

The Breadboard=  Radio Shack (not necessary, but I already made the prototyping stand.

LEDs and jumper wires = you guessed it... Radio Shack

The power source is Altoids charger that supply's 5v to the Arduino board  (
You can also use a 9v battery with  resistors that are appropriate or use usb from laptop or desk top computer.  

The software I used I downloaded from

I understand there are many ways one can do this. I chose to build it this way because this is what I had.  

I connected the jumper wires to the #2,4,6,8,10 pins found on the Arduino board and the long leg of the Led are placed in line with the end of the red jumper wires on the breadboard.
The ground pin is located above the #13 pin  (GND) on the Arduino board. 

The Code I wrote is a modified version of the blink example: 

  Turns on an LED on for 1 second, then off for 1 second.

  This example code is in the public domain.

void setup() {

  // initialize the digital pin as an output.
  // Pin 13 has an LED connected on most Arduino boards:
  pinMode(2, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(8, OUTPUT);
  pinMode(10, OUTPUT);

void loop() {
  digitalWrite(2, HIGH);  // White Led on for 1 second
  digitalWrite(2, LOW);   // LED turns off for 1/2 second  
  digitalWrite(4, HIGH);  // Yellow led on 1/2 second   
  digitalWrite(4, LOW);   // LED turns off for 1/2 second
  digitalWrite(6, HIGH);  // Yellow Led on for 1/2 second
  digitalWrite(6, LOW);   // LED turns off for 1/2 second
  digitalWrite(8, HIGH);  // Yellow Led on for 1/2 sec 
  digitalWrite(8, LOW);   // LED turns off for 1/2 second
  digitalWrite(10, HIGH);   // Green Led on for 2 seconds
  digitalWrite(10, LOW);   // Green LED turns off for 3 seconds

As soon as I learn how to move it to it's own board and add a start switch I will put it in a box and mount it permanently.
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