#include <DHT.h>
#include <Servo.h>

// Define pins and sensor type
#define DHTPIN 2          // DHT sensor connected to digital pin 2
#define DHTTYPE DHT22     // DHT 22 (AM2302)
#define LEDPIN 13         // LED connected to digital pin 13 (built-in LED)
#define SERVOPIN 9        // Servo motor connected to digital pin 9

// Initialize DHT sensor and Servo objects
DHT dht(DHTPIN, DHTTYPE);
Servo myServo;

void setup() {
  Serial.begin(9600);
  dht.begin();
  myServo.attach(SERVOPIN); // Attach the servo to the pin
  pinMode(LEDPIN, OUTPUT);
}

void loop() {
  // Wait a few seconds between measurements.
  delay(2000);

  // Read temperature as Celsius (the default)
  float t = dht.readTemperature();
  // Read humidity
  float h = dht.readHumidity();

  // Check if any reads failed and exit early (to try again)
  if (isnan(h) || isnan(t)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Print the values to the Serial Monitor
  Serial.print("Humidity: ");
  Serial.print(h);
  Serial.print(" %\t");
  Serial.print("Temperature: ");
  Serial.print(t);
  Serial.println(" *C");

  // Control the LED based on temperature
  if (t > 25.0) { // If temperature is above 25 degrees Celsius
    digitalWrite(LEDPIN, HIGH);
  } else {
    digitalWrite(LEDPIN, LOW);
  }

  // Control the servo motor based on humidity
  // Map humidity (0-100) to servo angle (0-180)
  int pos = map(h, 0, 100, 0, 180);
  myServo.write(pos);
}