#include <Servo.h> // Include the Servo library

const int potPin = A0;   // Analog pin connected to the potentiometer's wiper
const int redLedPin = 8; // Digital pin connected to the Red LED
const int greenLedPin = 7; // Digital pin connected to the Green LED
const int servoPin = 3;  // Digital pin connected to the servo motor

Servo myServo;           // Create a Servo object

void setup() {
  pinMode(redLedPin, OUTPUT);   // Set Red LED pin as output
  pinMode(greenLedPin, OUTPUT); // Set Green LED pin as output
  myServo.attach(servoPin);     // Attach the servo motor to the specified pin
  Serial.begin(9600);           // Start serial communication for debugging
  Serial.println("Potentiometer Control: Servo and LEDs");
  myServo.write(0); // Initialize servo to 0 degrees
}

void loop() {
  // Read the analog value from the potentiometer (0-1023)
  int potValue = analogRead(potPin);

  // Map the potentiometer value to the servo angle (0-180 degrees)
  // The map() function is used to re-map a number from one range to another.
  // Here, 0-1023 from potentiometer is mapped to 0-180 for servo.
  int servoAngle = map(potValue, 0, 1023, 0, 180);
  myServo.write(servoAngle); // Move the servo to the calculated angle

  // Control the LEDs based on the potentiometer's position
  // If potValue is in the lower half (0-511)
  if (potValue < 512) {
    digitalWrite(redLedPin, HIGH);   // Turn on the Red LED
    digitalWrite(greenLedPin, LOW);  // Turn off the Green LED
  }
  // If potValue is in the upper half (512-1023)
  else {
    digitalWrite(redLedPin, LOW);    // Turn off the Red LED
    digitalWrite(greenLedPin, HIGH); // Turn on the Green LED
  }

  // Print values to Serial Monitor for debugging
  Serial.print("Potentiometer Value: ");
  Serial.print(potValue);
  Serial.print(" | Servo Angle: ");
  Serial.print(servoAngle);
  Serial.print(" | Red LED: ");
  Serial.print(digitalRead(redLedPin) == HIGH ? "ON" : "OFF");
  Serial.print(" | Green LED: ");
  Serial.println(digitalRead(greenLedPin) == HIGH ? "ON" : "OFF");

  delay(15); // Small delay for stable readings and smoother servo movement
}