#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <OneWire.h>
#include <DallasTemperature.h>

LiquidCrystal_I2C lcd(0x27, 16, 2); 

OneWire oneWire(A1);
DallasTemperature tempSensors(&oneWire);

float maxTempOut = -127.0; 
float minTempOut = 127.0;  

void setup()
{
    tempSensors.begin();

    lcd.init();
    lcd.backlight();
    lcd.clear();
    
    Serial.begin(9600); 
}

void loop()
{
    tempSensors.requestTemperatures();
    float tempIn = tempSensors.getTempCByIndex(1); 
    float tempOut = tempSensors.getTempCByIndex(0); 

    if (tempOut > maxTempOut) {
        maxTempOut = tempOut;
    }
    if (tempOut < minTempOut) {
        minTempOut = tempOut;
    }

    lcd.setCursor(0, 0);
    lcd.print("Temp IN: ");
    lcd.print(tempIn);
    lcd.setCursor(14,0);
    lcd.print(" C");
    
    lcd.setCursor(0, 1);
    lcd.print("Temp OUT: ");
    lcd.print(tempOut);
    lcd.setCursor(14,1);
    lcd.print(" C");

    Serial.print("Max Temp OUT: ");
    Serial.print(maxTempOut);
    Serial.print(" C");
    
    Serial.print("    Min Temp OUT: ");
    Serial.print(minTempOut);
    Serial.println(" C");

    delay(2000); // Aktualizacja co 2 sekundy
}