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

LiquidCrystal_I2C lcd(0x27, 16, 2);

int potPin = A0;

void setup() {
  lcd.begin(16, 2); 
  lcd.backlight();
  Serial.begin(9600);
}

void loop() {
  int sensorValue = analogRead(potPin);
  float voltage = sensorValue * (5.0 / 1023.0);

  Serial.print("Voltage: ");
  Serial.println(voltage);

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Nilai ADC: ");
  lcd.print(sensorValue);

  lcd.setCursor(0, 1);
  lcd.print("V input: ");
  lcd.print(voltage);
  lcd.print(" V");

  delay(500);
}