#include <Servo.h>

#define POTENTIOMETER_PIN A0 // Analog pin connected to the potentiometer
#define SERVO_PIN 9 // Digital pin connected to the servo motor
#define THRESHOLD 512 // Threshold value for potentiometer analog reading

Servo servo; // Define servo object
int potValue; // Variable to store potentiometer value

void setup() {
  Serial.begin(9600); // Initialize serial communication
  servo.attach(SERVO_PIN); // Attach servo to digital pin
}

void loop() {
  potValue = analogRead(POTENTIOMETER_PIN); // Read potentiometer value

  // Check if potentiometer value exceeds threshold
  if (potValue > THRESHOLD) {
    rotateServo(90); // Rotate servo to 90 degrees
  } else {
    rotateServo(0); // Rotate servo to 0 degrees
  }
}

void rotateServo(int angle) {
  servo.write(angle); // Set servo angle
  delay(100); // Delay for servo to reach position
}