#include "DHTesp.h" 
#include <DHT.h>   
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

const int DHT_PIN = 13;   //กำหนดขา DHT22 = ขา 13
DHTesp dhtSensor;         //ประกาศตัวแปร dhtSensor

#define GREEN_LED_PIN 15   
#define RED_LED_PIN 2  
#define DHTPIN 4         
#define DHTTYPE DHT22  

define BLYNK_TEMPLATE_ID "TMPL6D0zRoBo-"
#define BLYNK_TEMPLATE_NAME "Maiyacha"
#define BLYNK_AUTH_TOKEN "lH9RY5nLnwuPgZllWZ92uSdGNUN1966A"
#define BLYNK_PRINT Serial  

DHT dht(DHTPIN, DHTTYPE);

#include <BlynkSimpleEsp32.h>
#include <ESP32Servo.h>
char auth[] = BLYNK_AUTH_TOKEN ;
char ssid[] = "Wokwi-GUEST";
char pass[] = "";
Servo servo;


String currentPlace = "unknown"; 

void setup() {
  Serial.begin(115200);   //ให้ Serial เริ่มทำงาน ที่ความเร็ว 115200 bps
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  dhtSensor.setup(DHT_PIN, DHTesp::DHT22); //เริ่มใช้งาน DHT22
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE);
  pinMode(15, OUTPUT);
  pinMode(2, OUTPUT);

  Blynk.begin(auth, ssid, pass);
 servo.attach(18);
}


void loop() {

  TempAndHumidity  data = dhtSensor.getTempAndHumidity();   //อ่านค่าอุณหภูมิและความชื้นเก็นที่ตัวแปร data
  Serial.println("Temp: " + String(data.temperature, 2) + "°C");   //แสดงผลอุณหภูมิ
  Serial.println("Humidity: " + String(data.humidity, 1) + "%");    //แสดงผลความชื้น
  Serial.println("---");
  display.clearDisplay();
  display.setCursor(45,0);
  display.println("216");
  display.setCursor(9, 11);
  display.print("Temp:");
  display.print(String(data.temperature, 1));
  display.setCursor(10, 30);
  display.print("Humi:");  
  display.print(String(data.humidity, 1));
  display.setCursor(45,48);
  display.write(3);
  display.write(3);
  display.write(3);
  delay(200);
  display.setCursor(45,48);
  display.write(3);
  display.write(3);
  display.write(3);
  delay(200);
  display.display(); 
  delay(1000);

 float temperature = dht.readTemperature();
 float humidity = dht.readHumidity();

 if (Serial.available() > 0) {
    String input = Serial.readStringUntil('\n');
    if (input.startsWith("place=")) {
      currentPlace = input.substring(6);
    }
  }
  
  if (temperature > 40 && humidity > 40 ) 
  {
  digitalWrite(2, LOW);
  delay(200);
  digitalWrite(15, HIGH);
  delay(200);
  } 
  else 
  {
  digitalWrite(2, HIGH);
  digitalWrite(15, LOW);
  }
  

  Serial.print("Place: ");
  Serial.println(currentPlace);
  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print(" °C, Humidity: ");
  Serial.print(humidity);
  Serial.println(" %");

  delay(2000);  

  Blynk.run();
  }
  BLYNK_WRITE(V0)
  {
  servo.write(param.asInt());  
  }
  BLYNK_WRITE(V1)
  {
  servo.write(0);
  }
  BLYNK_WRITE(V2)
  {
  servo.write(180);

}