#include <Adafruit_NeoPixel.h>
#define LED_COUNT 16
#define LED_PIN 4
Adafruit_NeoPixel strip = Adafruit_NeoPixel (LED_COUNT, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  strip.begin();
  strip.show();
}

int pix;
void loop() {
    int pot = analogRead (4);
      for(int a=0;a<LED_COUNT;a++){
         setPixel(a,pot,255);
         }
           strip.show();

           }/*
}
void loop() {
  int pot = analogRead (6);
  pix++;
  pix %= LED_COUNT;
  setPixel(pix, pot, 255);
  strip.show();
  for (int a = 0; a < LED_COUNT; a++) {
    strip.setPixelColor(a, 0, 0, 0);
  }
  delay(150);

}*/

void setPixel(int pixelz, int colorz, long unsigned fadez) {
  fadez *= fadez;
  fadez /= 255;
  strip.setPixelColor(pixelz, strip.ColorHSV(colorz * 64, 255, fadez));
}