#include <Servo.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include "DHT.h"

// LCD setup
LiquidCrystal_I2C lcd(0x27,16,2);

// DHT setup
#define DHTPIN 2          // DHT data pin
#define DHTTYPE DHT11     // DHT11 or DHT22
DHT dht(DHTPIN, DHTTYPE);

// Servo setup
Servo myServo;

void setup() {
  Serial.begin(9600);
  dht.begin();
  myServo.attach(9); // Servo pin
  lcd.init();
  lcd.backlight();
}

void loop() {
  float humidity = dht.readHumidity();
  
  if(isnan(humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  // Map humidity (0-100%) to servo angle (0-180 degree)
  int angle = map(humidity, 0, 100, 0, 180);
  myServo.write(angle);

  // Display on Serial Monitor
  Serial.print("Humidity: ");
  Serial.print(humidity);
  Serial.print("% -> Servo Angle: ");
  Serial.println(angle);

  // Display on LCD
  lcd.clear();
  lcd.setCursor(0,0);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print("%");
  lcd.setCursor(0,1);
  lcd.print("Servo Angle: ");
  lcd.print(angle);

  delay(2000); // Update every 2 seconds
}