Arduino FastLED WS2812B red tail light sequence

gistfile1.txt

#include "FastLED.h"

// 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 LED_PIN 11
#define COLOR_ORDER GRB
#define CHIPSET WS2812B
#define NUM_LEDS 72

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

void setup() {
  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection( TypicalLEDStrip );
}

void loop() {
  uint8_t val = random(10);
  leds[val] = CHSV(0, 255, random(255));
  FastLED.show();
  leds[val] = CHSV(0, 255, 0);
  delay(10);
}