#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>

// Servo setup
Servo myServo;

// LCD setup (address 0x27, 16 columns x 2 rows)
LiquidCrystal_I2C lcd(0x27, 16, 2);

// Pins
const int potPin = A0;
const int servoPin = 9;

void setup() {
  myServo.attach(servoPin);
  lcd.begin(16, 2);       // ✅ Fix: provide rows and columns
  lcd.backlight();
  Serial.begin(9600);
}

void loop() {
  int potValue = analogRead(potPin);          // Read potentiometer (0–1023)
  int angle = map(potValue, 0, 1023, 0, 180);  // Convert to angle (0–180)

  myServo.write(angle);  // Move servo

  // Display on LCD
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Servo Angle:");
  lcd.setCursor(0, 1);
  lcd.print(angle);
  lcd.print((char)223); // Degree symbol
  lcd.print(" deg");

  // Display on Serial
  Serial.print("Servo Angle: ");
  Serial.println(angle);

  delay(200);
}