Arduino Knight Rider (With LED Bargraph )

Hello Everybody,

I have always wanted to make a knight rider circuit, but every tutorial I have read uses TONS and TONS of components. So I made a knight rider circuit that uses 3 components and a bit of programming.

PS. Could you please vote for me in the Tech contest.

Step 1: Parts and Components

For this project you don't need too many components. The components you need are:

1- A Arduino UNO

2- A LED Bargraph

3- A Computer with Arduino IDE

4- And a A to B USB cable

Step 2: Schematic

Step 3: Bargraph Assembly

Take the jumper wire and wrap it around all the Ground pins which are on the BLANK side of the bargraph.

Step 4: Assembly Part 2

Put the LED Bargraph on the Arduino Board, and plug the end of the jumper wire in the GND pin as shown.

Step 5: The Code

int pin2 = 2;
int pin3 = 3;
int pin4 = 4;
int pin5 = 5;
int pin6 = 6;
int pin7 = 7;
int pin8 = 8;
int pin9 = 9;
int pin10 = 10;
int pin11 = 11;
int timer = 60;
void setup(){
  pinMode(pin2, OUTPUT);
  pinMode(pin3, OUTPUT);
  pinMode(pin4, OUTPUT);
  pinMode(pin5, OUTPUT);
  pinMode(pin6, OUTPUT);
  pinMode(pin7, OUTPUT);
  pinMode(pin8, OUTPUT);
  pinMode(pin9, OUTPUT);
  pinMode(pin10, OUTPUT);
  pinMode(pin11, OUTPUT);
}
void loop() {
   digitalWrite(pin2, HIGH);
   delay(timer);
   digitalWrite(pin2, LOW);
   delay(timer);
   digitalWrite(pin3, HIGH);
   delay(timer);
   digitalWrite(pin3, LOW);
   delay(timer);
   digitalWrite(pin4, HIGH);
   delay(timer);
   digitalWrite(pin4, LOW);
   delay(timer);
   digitalWrite(pin5, HIGH);
   delay(timer);
   digitalWrite(pin5, LOW);
   delay(timer);
   digitalWrite(pin6, HIGH);
   delay(timer);
   digitalWrite(pin6, LOW);
   delay(timer);
  digitalWrite(pin7, HIGH);
   delay(timer);
   digitalWrite(pin7, LOW);
   delay(timer);
   
   digitalWrite(pin8, HIGH);
   delay(timer);
   digitalWrite(pin8, LOW);
   delay(timer);
   digitalWrite(pin9, HIGH);
   delay(timer);
   digitalWrite(pin9, LOW);
   delay(timer);
   
   digitalWrite(pin10, HIGH);
   delay(timer);
   digitalWrite(pin10, LOW);
   delay(timer);
   
   digitalWrite(pin11, HIGH);
   delay(timer);
   digitalWrite(pin11, LOW);
   delay(timer);
   
   digitalWrite(pin10, HIGH);
   delay(timer);
   digitalWrite(pin10, LOW);
   delay(timer);
   
    digitalWrite(pin9, HIGH);
   delay(timer);
   digitalWrite(pin9, LOW);
   delay(timer);
   
   digitalWrite(pin8, HIGH);
   delay(timer);
   digitalWrite(pin8, LOW);
   delay(timer);
   
   digitalWrite(pin7, HIGH);
   delay(timer);
   digitalWrite(pin7, LOW);
   delay(timer);
  
   digitalWrite(pin6, HIGH);
   delay(timer);
   digitalWrite(pin6, LOW);
   delay(timer);
   digitalWrite(pin5, HIGH);
   delay(timer);
   digitalWrite(pin5, LOW);
   delay(timer);
   digitalWrite(pin4, HIGH);
   delay(timer);
   digitalWrite(pin4, LOW);
   delay(timer);
   digitalWrite(pin3, HIGH);
   delay(timer);
   digitalWrite(pin3, LOW);
   delay(timer);
}