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

LiquidCrystal_I2C lcd(0x27, 16, 2); 
const int ledGreen = 4;
const int potPin = A0; 

void setup() {
  pinMode(ledGreen, OUTPUT);
  lcd.begin(16, 2);
  lcd.print("Potensiometer:");
}

void loop() {
  int potValue = analogRead(potPin);
  int brightness = map(potValue, 0, 1023, 0, 255);

  analogWrite(ledGreen, brightness);

  int percentage = map(potValue, 0, 1023, 0, 100);

  lcd.setCursor(0, 1);
  lcd.print("                "); 

  lcd.setCursor(0, 1);
  lcd.print("Persentase: " + String(percentage) + "%");

  delay(100);
}