#include <ESP32Servo.h> // Allow ESP32 to control servo

Servo myservo; // Create Servo Object to control a servo

const int ServoPin = 23; // Setting pin 23 for servo
const int buzzerPin = 5; // Buzzer pin

unsigned long ADC_previous_millis = 0;
const unsigned int ADC_interval = 100; // Interval to check ADC

int angle = 0; // Set the initial angle of Servo
const unsigned int incrementRate = 2; // Increment rate

void setup()
{
  Serial.begin(115200); // Begin Serial Monitor
  myservo.attach(ServoPin); // Set up ServoPin using Servo library
  pinMode(buzzerPin, OUTPUT);
}

void loop()
{
  unsigned long current_millis = millis();
  if (current_millis - ADC_previous_millis >= ADC_interval)
  {
    ADC_previous_millis = current_millis;

    int ADC_value = analogRead(A5); // Variable to read the value from analog pin
    Serial.print("ADC value now is ");
    Serial.println(ADC_value);

    if (ADC_value < 2500)
  {
      // Move servo from current angle to 180 degrees
      tone(buzzerPin, 1000); // Turn on the buzzer
      for (int angle = 90; angle <= 180; angle += 1) 
  {
    myservo.write(angle);
    Serial.print("Angle: 1 ");
    Serial.println(angle);
    delay(100); // Wait for the servo to reach the position
  }
      noTone(buzzerPin); // Turn off the buzzer after reaching 180 degrees
   }
    else if (ADC_value >= 2500 && ADC_value < 4000)
    {
      // Move servo from current angle to 0 degrees
     // Sweep from 180 to 0 degrees
  for (int angle = 180; angle >= 0; angle -= 1) {
    myservo.write(angle);
    Serial.print("Angle: 0");
    Serial.println(angle);
    delay(100); // Wait for the servo to reach the position
  }

  delay(1000); // Wait before repeating the sweep
  }
 }
}