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// include library
#include<FastLED.h>
 
//define number of LED and pin
#define NUM_LEDS 8
#define DATA_PIN 3
 
// create the ld object array 
CRGB leds[NUM_LEDS];
 
// define 3 byte for the random color
byte  r, g, b;
 
void setup() {
  // init the LED object
  FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
  // set random seed
  randomSeed(analogRead(0));
}
 
 
void loop() {
  // loop over the NUM_LEDS
  for (int cur = 0; cur < NUM_LEDS; cur++) {
    // chose random value for the r/g/b
    r = random(0, 255);
    g = random(0, 255);
    b = random(0, 255);
    
    //set the value to the led 
    leds[cur] = CRGB (r, g, b);
  }
  // set the colors set into the phisical LED
  FastLED.show();
  
  // delay 50 millis
  FastLED.delay(50);
 
}