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

// Pin Configurations
const int ds18b20Pin = 7; // Temperature sensor on digital pin 2
const int potPin = A0;    // Potentiometer on analog pin A0

// Setup a oneWire instance
OneWire oneWire(ds18b20Pin);

// Pass oneWire reference to DallasTemperature library
DallasTemperature sensors(&oneWire);

// Setup the LCD, address 0x27 (common for I2C LCDs), 16 columns and 2 rows
LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  // Start communication with sensors and LCD
    sensors.begin();
      lcd.init();         // Initialize the LCD
        lcd.backlight();    // Turn on the LCD backlight
        }

        void loop() {
          // Request temperature from sensor
            sensors.requestTemperatures();
              float temperature = sensors.getTempCByIndex(0); // Get temperature in Celsius
                
                  // Read the potentiometer voltage
                    int potValue = analogRead(potPin);
                      float voltage = (potValue / 1023.0) * 5.0; // Convert analog value to voltage (assuming 5V Arduino)

                        // Display on LCD
                          lcd.clear();
                            
                              lcd.setCursor(0, 0);
                               lcd.print("Temp: ");
                                lcd.print(temperature);
                                  lcd.print(" C");

                                    lcd.setCursor(0, 1);
                                      lcd.print("Volt: ");
                                        lcd.print(voltage);
                                          lcd.print(" V");

                                            delay(1000); // Wait 1 second before updating
                                            }