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

// Pin configuration
const int DS18B20_PIN = 20;  // Pin where the DS18B20 is connected
const int LED_RED_PIN = 9;
const int LED_GREEN_PIN = 4;

// Create a OneWire instance
OneWire oneWire(DS18B20_PIN);

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

// Test temperature variable (for simulation purposes)
float testTemperature = 25.0; // Initial test value

void setup() {
  // Start serial communication
  Serial.begin(115200);
  Serial.println("System Initialized");

  // Initialize the DS18B20 sensor
  sensors.begin();  // Initialize DallasTemperature instance
  pinMode(LED_GREEN_PIN, OUTPUT);
  pinMode(LED_RED_PIN, OUTPUT);
}

void loop() {
  // Simulate temperature reading for testing
  float temperature = testTemperature; // Use the test temperature value

  // Check the temperature and control LEDs accordingly
  if (temperature > 25.0) { // Example threshold temperature (e.g., 25°C)
    digitalWrite(LED_GREEN_PIN, LOW); // Turn off green LED
    digitalWrite(LED_RED_PIN, HIGH);  // Turn on red LED
    Serial.print("High Temperature: ");
    Serial.println(temperature);
  } else {
    digitalWrite(LED_GREEN_PIN, HIGH); // Turn on green LED
    digitalWrite(LED_RED_PIN, LOW);   // Turn off red LED
    Serial.print("Normal Temperature: ");
    Serial.println(temperature);
  }

  // Test different temperatures by modifying the testTemperature variable
  testTemperature += 2.0; // Increment temperature for testing
  if (testTemperature > 50.0) { // Reset test temperature if it exceeds a limit
    testTemperature = 20.0;
  }

  delay(1000); // Wait for 1 second before the next loop iteration
}