#include <Adafruit_NeoPixel.h>

#define LED_PIN 13  // The ESP32 pin GPIO16 connected to WS2812B
#define NUMPIXELS 1 
#define BRIGHTNESS 1
#define LED 2

Adafruit_NeoPixel pixels(NUMPIXELS, LED_PIN, NEO_GRB + NEO_KHZ800);

int tnd = 1000;

void setup() {
  pixels.begin();           // INITIALIZE NeoPixel strip object (REQUIRED)
  pixels.clear();

  pinMode(LED,OUTPUT);
}

void loop() {
  pixels.setPixelColor(0, pixels.Color(0, 150, 0));
  pixels.show();
  digitalWrite(LED,HIGH);
  delay(tnd);

  pixels.setPixelColor(0, pixels.Color(150, 0, 0));
  pixels.show();
  digitalWrite(LED,LOW);
  delay(tnd);

  pixels.setPixelColor(0, pixels.Color(0, 0, 150));
  pixels.show();
  digitalWrite(LED,HIGH);
  delay(tnd);

  pixels.setPixelColor(0, pixels.Color(100, 100, 100));
  pixels.show();
  digitalWrite(LED,LOW);
  delay(tnd);
  
}