#include <Adafruit_NeoPixel.h>
const int LED_PIN = 2;
const int LED_COINT = 16;
Adafruit_NeoPixel pixels (LED_COINT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  pinMode(A0, INPUT);
  // put your setup code here, to run once:
pixels.begin();
pixels.show();
pixels.setBrightness(255);
Serial.begin(9600);
}

void loop() {
  // put your main code here, to run repeatedly:
  pixels.clear();
  int x = analogRead(A0);
  x = map (x, 0, 1024, 0, 255);
  pixels.setBrightness(x);
  
  for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,255,0,0);
  pixels.show();
  delay(100);
  }
  for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,255,125,0);
  pixels.show();
  delay(100);
  }
    for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,255,255,0);
  pixels.show();
  delay(100);
  }
    for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,0,255,0);
  pixels.show();
  delay(100);
  }
    for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,0,255,255);
  pixels.show();
  delay(100);
  }
      for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,0,0,255);
  pixels.show();
  delay(100);
  }
      for(int i=0;i<=15; i++)
  {
  pixels.setPixelColor(i,255,0,255);
  pixels.show();
  delay(100);
  }
  
  //pixels.setPixelColor(0,255,0,0);
  //pixels.setPixelColor(1,0,255,0);
  //pixels.setPixelColor(2,0,0,255);

  //pixels.show();
   delay(2000);


}