#include <FastLED.h>

#define NUM_LEDS 1
CRGB leds[NUM_LEDS];

int value = 0;

void setup() {
  Serial.begin(9600);
  FastLED.addLeds<NEOPIXEL, 3>(leds, NUM_LEDS);
}

void loop() {
  value = analogRead(A0);
  Serial.print("Value: ");
  Serial.println(value);

  if (value > 1000) {
    Serial.println("red");
    leds[0] = CRGB::Red;
    FastLED.show();
  } else if (value > 500) {
    Serial.println("orange");
    leds[0] = CRGB::Orange;
    FastLED.show();
  } else {
    Serial.println("green");
    leds[0] = CRGB::Green;
    FastLED.show();
  }
}