/***********************************************************************
write c plus code using arduino and neopixle ring having 24 leds in 
such a way that all leds chase in different random colors clockwise
 then chase anticlock wise with different colors,then blink all leds
  three time with three times usin all leds color  red, green, yellow 
.repeate with voide loop

In this code, we use the Adafruit NeoPixel library to control the
 NeoPixel Ring. In the setup function, we initialize the strip object
  and set all the pixels to off using the show method. In the loop
   function, we implement the three behaviors you described.

First, we chase the LEDs clockwise and anticlockwise with random
 colors using two for loops and the setPixelColor and show methods
  of the strip object.

Next, we blink all the LEDs three times with different colors using
 another for loop and the setPixelColor and show methods. We set the
  color of all LEDs to red, green, and yellow in sequence using the RGB 
  color values (255,0,0), (0,255,0), and (255,255,0), respectively.

Finally, we repeat the entire sequence by going back to the
 beginning of the loop function. The delay functions are used
  to control the timing of the animations.

author arvind patil 18 march2013


***********************************************************************/




#include <Adafruit_NeoPixel.h>

#define PIN 6
#define NUM_LEDS 24

Adafruit_NeoPixel strip(NUM_LEDS, PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
}

void loop() {
  // Chase clockwise with random colors
  for(int i=0; i<NUM_LEDS; i++) {
    strip.setPixelColor(i, random(256), random(256), random(256));
    strip.show();
    delay(50);
  }

  // Chase anticlockwise with random colors
  for(int i=NUM_LEDS-1; i>=0; i--) {
    strip.setPixelColor(i, random(256), random(256), random(256));
    strip.show();
    delay(50);
  }

  // Blink all LEDs with different colors
  for(int c=0; c<3; c++) {
    for(int i=0; i<NUM_LEDS; i++) {
      strip.setPixelColor(i, 255, 0, 0); // red
    }
    strip.show();
    delay(500);
    
    for(int i=0; i<NUM_LEDS; i++) {
      strip.setPixelColor(i, 0, 255, 0); // green
    }
    strip.show();
    delay(500);
    
    for(int i=0; i<NUM_LEDS; i++) {
      strip.setPixelColor(i, 255, 255, 0); // yellow
    }
    strip.show();
    delay(500);
  }
}