#include <LiquidCrystal_I2C.h>
#define I2C_ADDR     0x27
#define LCD_COLLUMNS 16
#define LCD_LINES   2
//                   0x27-0x3f   16 karakter   2 satır
LiquidCrystal_I2C lcd(I2C_ADDR, LCD_COLLUMNS, LCD_LINES);

float gerilim=0;
int olcumcu=0;
float deger=0;
float volt=0;
void setup() {
  pinMode(8, OUTPUT);
  pinMode(10, OUTPUT);
  //         SDA SCL
  Wire.begin(12, 13);
  lcd.init();
  lcd.backlight();
  pinMode(olcumcu,INPUT);
}

void loop(){
  lcd.clear();
  gerilim=analogRead(olcumcu);
  volt=(gerilim*5)/4096; //12 bit çözünürlik
  lcd.print("gerilim = ");
  lcd.print(gerilim);
  lcd.setCursor(0,1);
  lcd.print("volt = ");
  lcd.print(volt);
  
  delay(1000); // this speeds up the simulation
}