Neopixel Jewel

main.cpp

// Low power NeoPixel goggles example.  Makes a nice blinky display
// with just a few LEDs on at any time.

#include <FastLED.h>

#define RING_LEDS 7
#define RING_PIN 6

CRGB ring[RING_LEDS];

void setup() {
  FastLED.addLeds<NEOPIXEL, RING_PIN>(ring, RING_LEDS);
}

void loop() {
  ring[0] = CRGB::Red;
  delay(1000);
  FastLED.show();
  ring[1] = CRGB::Red;
  delay(1000);
  FastLED.show();
  ring[2] = CRGB::Red;
  delay(1000);
  FastLED.show();
}