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

// Pin Configurations
const int ds18b20Pin = 2; // Temperature sensor
const int potPin = A0;    // Potentiometer

// Sensor Initialization
OneWire oneWire(ds18b20Pin);
DallasTemperature sensors(&oneWire);

// LCD Initialization
LiquidCrystal_I2C lcd(0x27, 16,2); // I2C address, 16x2 LCD

void setup() {
  Serial.begin(9600);

    // Start temperature sensor
      sensors.begin();

        // Start LCD
          lcd.begin(16, 2); // 16 columns, 2 rows
          
            lcd.backlight();
            }

            void loop() {
              // Read temperature
                sensors.requestTemperatures();
                  float temperatureC = sensors.getTempCByIndex(0);

                    // Read voltage
                      int potValue = analogRead(potPin);
                        float voltage = potValue * 5.0 / 1023.0;

                          // Print to Serial Monitor
                            Serial.print("Temperature: ");
                              Serial.print(temperatureC);
                                Serial.println(" °C");
                                  Serial.print("Voltage: ");
                                    Serial.print(voltage);
                                      Serial.println(" V");

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

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

                                                            delay(1000);
                                                            }