#include <WiFi.h>
#include <DHT.h>

#define DHTPIN 4          // Pin where DHT11 is connected
#define DHTTYPE DHT11     // DHT 11
#define LED_PIN 2         // Pin where LED is connected
#define RELAY_PIN 5       // Pin where Relay is connected
#define LDR_PIN 34        // Pin where LDR is connected

DHT dht(DHTPIN, DHTTYPE);

const char* ssid = "Your_SSID";          // Wi-Fi SSID
const char* password = "Your_PASSWORD";  // Wi-Fi password

void setup() {
  Serial.begin(115200);
  dht.begin();
  
  pinMode(LED_PIN, OUTPUT);
  pinMode(RELAY_PIN, OUTPUT);
  pinMode(LDR_PIN, INPUT);
  
  // Connect to Wi-Fi
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi");
}

void loop() {
  // Read temperature and humidity
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  
  // Check if any reads failed
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Read LDR (Light)
  int lightLevel = analogRead(LDR_PIN);
  
  // Print values to Serial Monitor
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.print(" *C\t");
  Serial.print("Light: ");
  Serial.println(lightLevel);

  // Control LED based on Light level (example)
  if (lightLevel < 1000) {
    digitalWrite(LED_PIN, HIGH); // Turn on LED if light level is low
  } else {
    digitalWrite(LED_PIN, LOW);  // Turn off LED if light level is high
  }

  // Control Relay based on Temperature (example)
  if (t > 30) {
    digitalWrite(RELAY_PIN, HIGH); // Turn on Relay if temperature is high
  } else {
    digitalWrite(RELAY_PIN, LOW);  // Turn off Relay if temperature is normal
  }

  delay(2000);  // Delay for 2 seconds
}