#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27,16,2);
void setup() {
  // put your setup code here, to run once:
  lcd.init();
  lcd.backlight();
  lcd.setCursor(0,0);
  pinMode(A0, INPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  Serial.begin(9600);
}
void loop() {
  // put your main code here, to run repeatedly:
  lcd.clear();
  digitalWrite(3, LOW);
  digitalWrite(4, LOW);
  digitalWrite(5, LOW);
  int pembacaan = analogRead(A0);
  int nilai = map(pembacaan, 0, 1023, 0, 255);
  int persen = map(pembacaan, 0, 1023, 0, 100);
  lcd.setCursor(0,0);
  lcd.print("Persentase: ");
  lcd.print(persen);
  lcd.print("%");
  Serial.print("Pembacaan Potensio : ");
  Serial.println(pembacaan);
  Serial.print("Output Led : ");
  Serial.println(nilai);
  if(persen >= 0){
    digitalWrite(3, HIGH);
  }
  if(persen >= 34){
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
  }
  if(persen >= 67){
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
    digitalWrite(5, HIGH);
  }
  if(persen == 100){
    digitalWrite(3, HIGH);
    digitalWrite(4, HIGH);
    digitalWrite(5, HIGH);
    delay(500);
    digitalWrite(3, LOW);
    digitalWrite(4, LOW);
    digitalWrite(5, LOW);
    delay(500);
  }
}