LED Chaser

Another cool arduino based led project to get ya going. This project is super cool to show off and easy to build.

Skill Level:  Newb

Time: 30 min

Parts Required:

- Breadboard
- Arduino
- 8 Leds
- 8 10k resistors
- Jumper wires
- 10k potentiometer

This is an LED Chaser program with Speed Control

// 8 LED's are connected to the 8 Pins of Arduino

// with a series resistor with each LED

// Potentiometer is Connected to Analog Input pin A0

// refer circuit diagram for reference

// You can Change chaser speed by varying the pot

int led1 = 1;

int led2 = 2;

int led3 = 3;

int led4 = 4;

int led5 = 5;

int led6 = 6;

int led7 = 7;

int led8 = 8;

int count = 1;

void setup()

{

  // put your setup code here, to run once:

  pinMode(1,OUTPUT);

  pinMode(2,OUTPUT);

  pinMode(3,OUTPUT);

  pinMode(4,OUTPUT);

  pinMode(5,OUTPUT);

  pinMode(6,OUTPUT);

  pinMode(7,OUTPUT);

  pinMode(8,OUTPUT);

}

void loop()

{

// i reads the analog pot value connected to A0 pin

// this value changes from 0  - 1023 giving us a delay of

// 0 to 1023 milliseconds

// count variable carries the number of LED pin

// we reset the count to 1 when it becomes more than 8

// because we have only 8 leds connected

  int i =  (A0);

  digitalWrite(count,HIGH); delay(i);

  digitalWrite(count,LOW); delay(i);

  count++;

  if(count > 8)

  {

    count = 1;

  }

}

Thanks guys more to come.....