rgbcalibrate.ino

// An RGBCalibrate

#include "FastLED.h"

#define NUM_LEDS 30
#define DATA_PIN 12

CRGB leds[NUM_LEDS];

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

void loop() {
  leds[0] = CRGB(255, 0, 0);  // Red
  leds[1] = CRGB(0, 255, 0);  // Green
  leds[2] = CRGB(0, 255, 0);  // Green
  leds[3] = CRGB(0, 0, 255);  // Blue
  leds[4] = CRGB(0, 0, 255);  // Blue
  leds[5] = CRGB(0, 0, 255);  // Blue
  leds[6] = CHSV(0, 0, 255);  // https://github.com/FastLED/FastLED/wiki/Pixel-reference#setting-hsv-colors
  FastLED.show();
  delay(1000);
}