//Leds chase backwards and forwards along strip

#include <FastLED.h>

#define LED_TYPE WS2812B
#define COLOR_ORDER GRB
#define NUM_LEDS 60
#define DATA_PIN 5
#define BRIGHTNESS          96

CRGB leds[NUM_LEDS];

unsigned long delayPeriod = 50;


void setup() { 
       delay(2000);
       //FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
       FastLED.addLeds<WS2812B, DATA_PIN, GRB>(leds, NUM_LEDS);  // GRB ordering is typical
       FastLED.setBrightness(BRIGHTNESS);

       
   }



void loop()  {
   for (int dot = 0; dot < NUM_LEDS; dot++) {
    leds[dot] = CRGB::Red;
    leds[dot+5] = CRGB::Black;
    leds[dot+10] = CRGB::Yellow;
    leds[dot+15] = CRGB::Black;
    leds[dot+20] = CRGB::Green;
    leds[dot+25] = CRGB::Black;
    leds[dot+30] = CRGB::Aqua;
    leds[dot+35] = CRGB::Black;
    leds[dot+40] = CRGB::Magenta;
    leds[dot+45] = CRGB::Blue;
    
    //leds[dot] = leds[10];
    FastLED.show();
    leds[dot-4] = CRGB::Black;
    
    
    //fadeToBlackBy( leds, NUM_LEDS, 100);
    delay(delayPeriod);
  }
}