#define BLYNK_TEMPLATE_ID "TMPL6qkalULLi"
#define BLYNK_TEMPLATE_NAME "temp humidity"
#define BLYNK_AUTH_TOKEN "ZHh86QUWcl31bqpVWjocPrMggnHaV8Hp"

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

#define DHTPIN 32
#define Red_Led 19
#define Yellow_Led 5
#define Green_Led 18
#define DHTTYPE DHT22
#define VIRTUAL_PIN_TEMP V3
#define VIRTUAL_PIN_HUMIDITY V4

char auth[] = BLYNK_AUTH_TOKEN;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";

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

void setup () {
  Blynk.begin(auth, ssid, pass);
  pinMode(Red_Led, OUTPUT);
  pinMode(Yellow_Led, OUTPUT);
  pinMode(Green_Led, OUTPUT);
  lcd.init();
  lcd.backlight();
  dht.begin();
}

void loop() {
  Blynk.run();

  float temperature = dht.readTemperature();
  float humidity = dht.readHumidity();
  
  lcd.setCursor(0,0);
  lcd.print("Temp : ");
  lcd.print(temperature);

  lcd.setCursor(0,1);
  lcd.print("Humidity : ");
  lcd.print(humidity);
  lcd.print("%");

  // อัปเดตข้อมูลไปยัง Blynk
  if (!isnan(temperature)) {
    Blynk.virtualWrite(VIRTUAL_PIN_TEMP, temperature); // ส่งค่าของ Temperature ไปยัง Virtual Pin V3
  }
  if (!isnan(humidity)) {
    Blynk.virtualWrite(VIRTUAL_PIN_HUMIDITY, humidity); // ส่งค่าของ Humidity ไปยัง Virtual Pin V4
  }

  // ควบคุมหลอด LED ตามเงื่อนไข
  if (humidity >= 60 && temperature >= 40) {
    digitalWrite(Green_Led, HIGH);
    digitalWrite(Red_Led, HIGH);
    digitalWrite(Yellow_Led, HIGH);
  } else {
    digitalWrite(Green_Led, LOW);
    digitalWrite(Red_Led, LOW);
    digitalWrite(Yellow_Led, LOW);
  }

  delay(2000); // หน่วงเวลาเพื่อไม่ให้อัปเดตบ่อยเกินไป
}