#define BLYNK_TEMPLATE_ID "TMPL6vqvArQQZ"
#define BLYNK_TEMPLATE_NAME "test2"
#define BLYNK_AUTH_TOKEN "Q7mnaHCFxp3-kqHuVXbu33jdDuXuEgwv"

#include <DHT.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
// #include <ESP32Servo.h>

// Define pins and constants
#define DHTPIN 4
#define SERVO_PIN 2
#define DHTTYPE DHT22

DHT dht(DHTPIN, DHTTYPE);
LiquidCrystal_I2C lcd(0x27, 16, 2);
Servo servo;

char auth[] = "Q7mnaHCFxp3-kqHuVXbu33jdDuXuEgwv";
char ssid[] = "YourWiFiSSID";
char pass[] = "YourWiFiPassword";

void setup() {
  Serial.begin(9600);
  dht.begin();
  lcd.begin();
  lcd.backlight();
  servo.attach(SERVO_PIN);
  Blynk.begin(auth, ssid, pass);
}

void loop() {
  Blynk.run();
  float temp = dht.readTemperature();
  float humidity = dht.readHumidity();
  
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temp);
  lcd.print(" C");
  
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print(" %");

  if (temp > 27 || humidity > 30) {
    servo.write(90); // Move servo to 90 degrees (turn on fan)
  } else {
    servo.write(0); // Move servo to 0 degrees (turn off fan)
  }
}

// Blynk button widget to control the servo manually
BLYNK_WRITE(V1) {
  int servoState = param.asInt();
  if (servoState == 1) {
    servo.write(90); // Move servo to 90 degrees
  } else {
    servo.write(0); // Move servo to 0 degrees
  }
}