#define BLYNK_TEMPLATE_ID "TMPL68MaRAWlq"
#define BLYNK_TEMPLATE_NAME "Test"
#define BLYNK_AUTH_TOKEN "azmRCcv1BW_Tx7XG3vAX4BcH5x2tHErS"

#include <WiFi.h>
#include <WiFiClient.h>
#include <BlynkSimpleEsp32.h>
#include <string.h>

#include <DHT.h>

#define DHT_TYPE DHT22
#define DHT_PIN 14
DHT dht(DHT_PIN,DHT_TYPE);

// define LED
#define LED_LIV 27 // Chân LED
#define LED_BATH 12 // Chân LED
// define PIR
#define PIR 19

//define servo
#include <ESP32Servo.h>
#define SERVO 23
Servo servo; 

// define buzzer
#define BUZZER 15

int button,pos=0;
String report;

// information
char auth[] = BLYNK_AUTH_TOKEN; // MÃ TOKEN
char ssid[] = "Wokwi-GUEST"; // Your WiFi credentials.
char pass[] = ""; // Set password to "" for open networks.

void setup() {
  Serial.begin(115200);
  // WiFi.begin(ssid,pass);
  // Blynk.config(auth);
  Blynk.begin(auth, ssid, pass); // mã token, name wifi, password
  Serial.print("Connecting to WiFi");
  while (WiFi.status() != WL_CONNECTED){
     delay(100);
     Serial.print(".");
   }
  Serial.println("Connected!");
  dht.begin();
  pinMode(LED_LIV, OUTPUT);
  pinMode(PIR,INPUT);
  pinMode(BUZZER, OUTPUT);
  pinMode(LED_BATH, OUTPUT);
  servo.attach(SERVO);
  servo.write(0);
}
// LED CONTROL
BLYNK_WRITE(V3) 
{
  
  button = param.asInt();
  if (button == 1)
  {
    digitalWrite(LED_LIV, HIGH);
  }
  else
  {
    digitalWrite(LED_LIV, LOW);
  }
}
BLYNK_WRITE(V4) 
{
  
  pos = param.asInt();
  servo.write(pos);
  delay(30);
}

void loop() {

  // kết nối với blynk
  Blynk.run(); 
  
  // temperature & humidity
  float t = dht.readTemperature();
  float h = dht.readHumidity();
  const int IP=digitalRead(PIR);
  Serial.println(IP);
  delay(100);

  // check is Number ?
  if (isnan(h) || isnan(t))
  {
    delay(500);
    Serial.println("Failed to read from DHT sensor!");
    return; // nếu lỗi thì sẽ quay lại loop đến khi đc giá trị đi tiếp
  }
  // báo cháy
  if (t>70) 
  { 
    report ="PHAT HIEN CO CHAY";
    analogWrite(BUZZER,255);
    delay(1000);
    pos=180;
    servo.write(180);
    Serial.print("PHAT HIEN CO CHAY \t");
  }
  else 
  {
    analogWrite(BUZZER,0);
    report ="BINH THUONG";
  }

  //PIR
  if(IP==1){
    digitalWrite(LED_BATH,HIGH);
    delay(1000);  
  }
  else{
    digitalWrite(LED_BATH,LOW);
    delay(1000);  
  
  }
  // gửi giá trị lên blynk
  Blynk.virtualWrite(V0,t); // chân đặt, tên
  Blynk.virtualWrite(V1,h);
  Blynk.virtualWrite(V2,report);
  Blynk.virtualWrite(V3,button);
  Blynk.virtualWrite(V4,pos);
  // In giá trị
  Serial.print("Temperature " + (String)t + " độ C");
  Serial.print("\t");
  Serial.print("Humidity " + (String)h + "%");
  Serial.print("\n");

  delay(2000);
}