Arduino Class Fast Led | HSV e RGB

#include "FastLED.h"

// How many leds in your strip?
#define NUM_LEDS 8

// For led chips like Neopixels, which have a data line, ground, and power, you just
// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
// ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
#define DATA_PIN 3
// #define CLOCK_PIN 13

// Define the array of leds
CRGB leds[NUM_LEDS];

void setup() { 
      Serial.begin(9600);
      FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
      }

void loop() { 
  // Turn the LED on, then pause
  
  for(int i = 0; i <= 7; i++){
  //leds[i] = 0x2C5D9D;
  leds[i].setHSV( 160, 255, 30*i); // per l'Hue Saturation and Value
 // leds[i].setRGB( 160, 255, 30*i); // con RBG

  leds[i-1] = CRGB::Black;
  leds[i+1] = CRGB::Black;
  Serial.println(i);
  FastLED.show();
  delay(50);
  }
  for(int i = 7; i >= 0; i--){
  leds[i] = CRGB::Red;
  leds[i-1] = CRGB::Black;
  leds[i+1] = CRGB::Black;
  Serial.println(i);
  FastLED.show();
  delay(50);
  }
//  // Now turn the LED off, then pause
//  leds[1] = CRGB::Green;
//  FastLED.show();
//  delay(500);
//    // Now turn the LED off, then pause
//  leds[1] = CRGB::Blue;
//  FastLED.show();
//  delay(500);
//  leds[1] = CRGB::Black;
//  FastLED.show();
//  delay(500);

  
}