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

// Data wire is connected to Arduino pin 2
#define ONE_WIRE_BUS 3
#define LED_PIN 5

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

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

void setup(void)
{
  Serial.begin(9600);
  sensors.begin();  // Start up the library
  pinMode(LED_PIN, OUTPUT);
}

void loop(void)
{
  sensors.requestTemperatures(); // Send command to get temperatures
  float tempC = sensors.getTempCByIndex(0); // Read the temperature in Celsius
  int delay_interval = 1000;

  if (tempC != DEVICE_DISCONNECTED_C)
  {
    Serial.print("Temperature: ");
    Serial.print(tempC);
    Serial.println("°C");

    delay_interval = 1000 - tempC * 10;
    if (delay_interval < 0) {
      delay_interval = 0;
    }
    Serial.print("delay: ");
    Serial.println(delay_interval);

    ledBlinking(delay_interval, LED_PIN);
  }
  else
  {
    Serial.println("Error: Could not read temperature data. Is the device connected?");
    ledBlinking(10000, LED_PIN); // 10 seconds interval
  }
}

void ledBlinking(int delay_interval, int led_pin) {
  digitalWrite(led_pin, HIGH);
  delay(50);
  digitalWrite(led_pin, LOW);
  delay(delay_interval);
}