#include <LiquidCrystal.h>

//[ RS, EN, D4, D5, D6, D7 ]
LiquidCrystal lcd(13, 12, 14, 27, 26, 25);

int pinoNTC = 2;
const float BETA = 3950; // Deve corresponder ao coeficiente beta do termistor
float temp = 0;
String lcdMsg = "Temp (°C):";

void setup() {
  Serial.begin(115200);
  lcd.begin(16, 2);
  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print(lcdMsg);
}

void loop() {
  int valorAnalog = analogRead(pinoNTC);
  float novaTemp = 1 / (log(1 / (4095. / valorAnalog - 1)) / BETA + 1.0 / 298.15) - 273.15;

  if (temp != novaTemp) {
    Serial.println(novaTemp);
    temp = novaTemp;
    lcd.setCursor(lcdMsg.length(), 0);
    lcd.print(temp);
  }
  delay(1000);
}