#include <LiquidCrystal_I2C.h>

int analog = A0;
int ledMerah = 3;
LiquidCrystal_I2C lcd(0x27,16,2);

void setup() {
  lcd.init();
  lcd.backlight();
  pinMode(analog, INPUT);
  pinMode(ledMerah, OUTPUT);
}

void loop() {
  lcd.clear();
  int data = analogRead(analog);
  int hasil = map(data, 0,1023,0,100);
  analogWrite(ledMerah, hasil);
  lcd.print(hasil);
  lcd.print("%");
  delay(100);
}