Cylon aka Kitt

/* Cylon aka Kitt
 *
 *  By: Andrew Tuline
 *
 *  Date: Jan, 2020
 *
 *  Really simple sketch makes use of some cool FastLED functionality.
 *
 */

#include "FastLED.h"

#define NUM_LEDS 20
#define DATA_PIN 12

CRGB leds[NUM_LEDS];

void setup() {
  LEDS.addLeds<WS2812,DATA_PIN,GRB>(leds,NUM_LEDS);
} // setup()


void loop() {
  int i = beatsin8(15,0,NUM_LEDS-1);
  leds[i] = CHSV(0, 255, 255);
  FastLED.show();
  fadeToBlackBy(leds, NUM_LEDS, 2);
} // loop()