#include <ESP32Servo.h>

#define SERVO_PIN 21
#define POT_PIN 26
#define LED_PIN 16
#define BUZZ_PIN 13

Servo myservo;
int pos = 0;

void setup() {
  Serial.begin(115200);
  myservo.attach(SERVO_PIN);
  pinMode(POT_PIN, INPUT);
  pinMode(LED_PIN, OUTPUT);
  pinMode(BUZZ_PIN, OUTPUT);
}

void warning(){
  for (int i = 0; i < 3; i++){
    tone(BUZZ_PIN, 100, 200);
    
    //analogWrite(BUZZ_PIN, LOW);
    delay(200);
  }
}

void loop() {
  // put your main code here, to run repeatedly:
  int potValue = analogRead(POT_PIN);
  int servoVal = map(potValue, 0, 4095, 0, 180);

  Serial.println(potValue);
  myservo.write(servoVal);

  if (potValue > 3000){
    digitalWrite(LED_PIN, HIGH);
    warning();
  } else {
    digitalWrite(LED_PIN, LOW);
  }

  delay(100);
}