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

// Data wire is connected to pin 2 on the Arduino
#define ONE_WIRE_BUS 2

// Setup a oneWire instance to communicate with any OneWire devices
OneWire oneWire(ONE_WIRE_BUS);

// Pass our oneWire reference to Dallas Temperature sensor 
DallasTemperature sensors(&oneWire);

const int buttonPin = 3;
const int buzzerPin = 4;
const int ledPin = 5;
const int tempThreshold = 50; // Temperature threshold in degrees Celsius

int buttonState = 0;

void setup() {
  pinMode(buttonPin, INPUT_PULLUP); // Enable internal pull-up resistor for the button
  pinMode(buzzerPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(9600);

  sensors.begin();
}

void loop() {
  buttonState = digitalRead(buttonPin);
  
  sensors.requestTemperatures(); // Send the command to get temperatures
  float temperatureC = sensors.getTempCByIndex(0); // Index 0 for a single sensor

  Serial.print("Temperature: ");
  Serial.print(temperatureC);
  Serial.println(" C");

  if (temperatureC >=  tempThreshold) {
    tone(buzzerPin, 1000); // Activate buzzer
    digitalWrite(ledPin, HIGH); // Turn on LED
  } else {
    noTone(buzzerPin); // Stop buzzer
    digitalWrite(ledPin, LOW); // Turn off LED
  }

  delay(1000); // Adjust delay as needed
}