#include <DHT.h>

#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);

#define LDR_PIN A0
#define ULTRASONIC_TRIG_PIN 3
#define ULTRASONIC_ECHO_PIN 4
#define PIR_PIN 5
#define NTC_PIN A1

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(LDR_PIN, INPUT);
  pinMode(ULTRASONIC_TRIG_PIN, OUTPUT);
  pinMode(ULTRASONIC_ECHO_PIN, INPUT);
  pinMode(PIR_PIN, INPUT);
}

void loop() {
  // Simulate DHT22 temperature and humidity sensor
  float temperature = random(20, 30);
  float humidity = random(40, 60);

  // Simulate LDR light photoresistor
  int ldrValue = analogRead(LDR_PIN);

  // Simulate Ultrasonic distance sensor
  digitalWrite(ULTRASONIC_TRIG_PIN, LOW);
  delayMicroseconds(2);
  digitalWrite(ULTRASONIC_TRIG_PIN, HIGH);
  delayMicroseconds(10);
  digitalWrite(ULTRASONIC_TRIG_PIN, LOW);
  long duration = pulseIn(ULTRASONIC_ECHO_PIN, HIGH);
  float distance = duration * 0.034 / 2;

  // Simulate PIR motion sensor
  int pirValue = digitalRead(PIR_PIN);

  // Simulate NTC analog temperature sensor
  int ntcValue = analogRead(NTC_PIN);
  float ntcTemperature = map(ntcValue, 0, 1023, 0, 100); // Adjust mapping to match NTC characteristics

  // Print the simulated sensor values
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.println(" °C");
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");
  Serial.print("LDR Value: ");
  Serial.println(ldrValue);
  Serial.print("Distance: ");
  Serial.print(distance);
  Serial.println(" cm");
  Serial.print("PIR Motion: ");
  Serial.println(pirValue);
  Serial.print("NTC Temperature: ");
  Serial.print(ntcTemperature);
  Serial.println(" °C");

  delay(2000); // Delay for 2 seconds before the next reading
}