//Leitor de Temperatura para empresas

#include <LiquidCrystal_I2C.h>


LiquidCrystal_I2C lcd(0x27,20,4);
// set the LCD address to 0x27 for a 16 chars and 2 line display


const float BETA = 3950; // > Beta Coefficient of the thermistor

void setup() {
  Serial.begin(9600);
  analogReadResolution(10);
  pinMode(12,INPUT);
  pinMode(21,OUTPUT);

  lcd.init();	
  lcd.backlight();
  lcd.print("* Temperatura *");
	delay(3000);
	lcd.clear();
  //LED = Pin(34,Pin.OUT)
}

void loop() {
  int analogValue = analogRead(12);
  float celsius = 1 / (log(1 / (1023. / analogValue - 1)) / BETA + 1.0 / 298.15) - 273.13;
  float fahrenheit = celsius  * 1.8 + 32;
  
  Serial.print("Temperatura: ");
  Serial.print(celsius);
  Serial.println(" ℃");
  delay(1500);

  lcd.setCursor(0,0);
	lcd.print("Temp: ");
	lcd.setCursor(5,0);
  lcd.print(fahrenheit);
  lcd.setCursor(4,1);
	lcd.print(" F");
	lcd.setCursor(12,0);
	lcd.print(celsius);
	lcd.setCursor(11,1);
	lcd.print(" C");
	lcd.setCursor(14,1);
	delay(1500);
	lcd.clear();
  //LED.off()

  if (celsius > 60){
    lcd.print("URGENTE!");
    Serial.println("ALERTA URGENTE: Temperatura acima do normal!");
    //LED.on()
  }
}