#include <LiquidCrystal_I2C.h>
#define NTC A0

LiquidCrystal_I2C lcd(0x27,20,4);

uint32_t getdata;
uint32_t postdata;

float temp;

void setup() {
  lcd.init();                      
  lcd.backlight();
  Serial.begin(9600);
}
void loop() {
  temp = 1 / (log(1 / (4096. / analogRead(NTC) - 1)) / 3950 + 1.0 / 298.15) - 273.15;
  Serial.print("Temperature: ");
  Serial.print(temp);
  Serial.println(" Celsius");
  lcd.setCursor(0,0);
  lcd.print("Temperature:");
  lcd.setCursor(0,1);
  lcd.print(temp);
  delay(4000);
}