#include <LiquidCrystal.h>
const int rs = 7;
const int en = 6;
const int d4 = 12;
const int d5 = 10;
const int d6 = 9;
const int d7 = 8;

LiquidCrystal lcd(rs, en, d4, d5, d6, d7);

void setup() {
  pinMode(A0, INPUT);
  lcd.begin(16, 2);
  lcd.print("Temp:");
}

void loop() {
  const float BETA = 3950; 
  int analogValue = analogRead(A0);
  lcd.setCursor(9,0);
  lcd.print(analogValue);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.15;
  lcd.setCursor(0,1);
  lcd.print(celsius);
  lcd.print(" deg C");
}