Build Flash Belt [portable] -

delay(1000);

CRGB leds[NUM_LEDS];

// Pattern 2: Rainbow chase for (int i = 0; i < NUM_LEDS; i++) leds[i] = CHSV(i * 8, 255, 255); FastLED.show(); delay(20); if (i > 0) leds[i-1] = CRGB::Black; build flash belt

void setup() FastLED.addLeds<LED_TYPE, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS); FastLED.setBrightness(BRIGHTNESS); i++) leds[i] = CHSV(i * 8

delay(500);