#include <Arduino.h>
#include <Adafruit_NeoPixel.h>

#define PIN_NEO_PIXEL D10
#define NUM_PIXELS 4

Adafruit_NeoPixel NeoPixel(NUM_PIXELS, PIN_NEO_PIXEL, NEO_GRB + NEO_KHZ800);

void setup() {
  // put your setup code here, to run once:
  NeoPixel.begin();
  for (int pixel=0; pixel < NUM_PIXELS; pixel++) {
    NeoPixel.setPixelColor(pixel, NeoPixel.Color(255, 255, 255));
  }
  NeoPixel.show();
}

void loop() {
  // put your main code here, to run repeatedly:
  
}