#include <LiquidCrystal_I2C.h>
#define BETA 3950
LiquidCrystal_I2C lcd(0x27, 16, 2);

float toCelsius(unsigned int analogValue)
{
  return 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
}

float toFahrenheit(unsigned int analogValue)
{
  return toCelsius(analogValue) * 9/5 + 32;
}


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

void loop()
{
  float t = analogRead(A0);
  lcd.setCursor(0, 0);
  lcd.print(String(toCelsius(t)) + " C");
  lcd.setCursor(0, 1);
  lcd.print(String(toFahrenheit(t)) + " F");
  delay(250);
}