#include <Adafruit_NeoPixel.h>
#include <ESP32Servo.h>

#define LED_PIN 9
#define NUMPIXELS 1
#define SERVO_PIN 3

Adafruit_NeoPixel pixel(NUMPIXELS, LED_PIN, NEO_GRB + NEO_KHZ800);
Servo myServo;

int angle = 0;
int direction = 1;
int colorState = 0;
unsigned long lastMove = 0;
unsigned long lastColor = 0;

void setup() {
  pixel.begin();
  pixel.setBrightness(50);
  myServo.attach(SERVO_PIN);
}

void loop() {
  unsigned long now = millis();

  if (now - lastColor > 1000) {
    if (colorState == 0)
      pixel.setPixelColor(0, pixel.Color(255, 0, 0));
    else if (colorState == 1)
      pixel.setPixelColor(0, pixel.Color(0, 255, 0));
    else
      pixel.setPixelColor(0, pixel.Color(0, 0, 255));

    pixel.show();

    colorState++;
    if (colorState > 2) colorState = 0;

    lastColor = now;
  }

  if (now - lastMove > 15) {
    angle += direction;
    if (angle >= 180 || angle <= 0) direction *= -1;
    myServo.write(angle);
    lastMove = now;
  }
}