#include <Adafruit_NeoPixel.h>
int Neo = 9;
int ledN = 16;
Adafruit_NeoPixel ring = Adafruit_NeoPixel(ledN, Neo);
int Ldr = A0;
int values = 0;

void setup() {
  // put your setup code here, to run once:
ring.begin();
Serial.begin(9600);
}

int Neos(uint32_t color) {
  for(int i = 0; i < ledN; i++) {
    ring.setPixelColor(i, color);
    ring.show();
    delay(100);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
values = analogRead(Ldr);
Serial.println(values);

if(values > 1000){
  Serial.println("Red");
  Neos(ring.Color(255,0,0));
}
else if(values > 500){
  Serial.println("Yellow");
  Neos(ring.Color(255,255,0));
}
else {
  Serial.println("Green");
  Neos(ring.Color(0,255,0));
}
}