#include <LiquidCrystal_I2C.h>
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
   Serial.begin(9600); 
  lcd.init();
  lcd.backlight();
  //Setup Awal Ketika Running
  lcd.setCursor(3,0);
  lcd.print("OHM METER");
  delay(1000);
  lcd.clear();
}
void loop(){
  //membaca Vin melalui pin ADC A0
  int sensorValue = analogRead(A0);
  //mengkonversi sensorValue ke voltage (Vin)
  float voltage = sensorValue * (3.3 / 1023.0);
  //menghitung nilai Rsen dengan cara seperti file excel, nilai R=100 ohm
  //putar kenop potensio maka nilai hambatan potensio (disimulasikan sebagai Rs)
  float Rsen = 36.6*voltage; 
   Serial.print("Voltage = ");
  Serial.print(voltage);
  Serial.println(" Volt");
  Serial.print("Rsensor = ");
  Serial.print(Rsen);
  Serial.println(" Ohm");

  lcd.setCursor(0,0);
  lcd.print("V =");
  lcd.setCursor(7,0);
  lcd.print(voltage);
   lcd.setCursor(13,0);
  lcd.print("volt");
  lcd.setCursor(0,1);
  lcd.print("RS=");
  lcd.setCursor(7,1);
  lcd.print(Rsen);
  lcd.setCursor(13,1);
  lcd.print("ohm");
  delay(500);
}