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

int ldrPin = A0;     // LDR pin
int servopin = 3;
int ledPin = 2;     // Build in LED pin
Servo myservo;
LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
  Serial.begin(9600);  // Initialise the serial monitor
  myservo.attach(servopin);

  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);

  lcd.init();
  lcd.backlight();
}
void loop() {
  int ldrVal = analogRead(ldrPin); // Read the analog value of the LDR

  ldrVal = map(ldrVal, 0, 1023, 0, 180);

  myservo.write(ldrVal);

 if (ldrVal < 200) {             // If the LDR value is lower than 200
    digitalWrite(ledPin, HIGH);   // Turn buildin LED on
  } else {
    digitalWrite(ledPin, LOW);    // Turn buildin LED off
  }
  Serial.print("Nilai ADC: ");
  Serial.println(ldrVal);
  delay(1000);                 // Pause 1000ms

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Sudut Derajat");
  lcd.setCursor(0, 1);
  lcd.print("Servo: "); 
  lcd.print(myservo.read()); 
  delay(1000);
}