#include <WiFi.h>
#include <WiFiClient.h>
//#include <BlynkSimpleEsp32.h>
#include <DHT.h>
#include <LiquidCrystal_I2C.h>

#define DHTPIN 15          // Pin connected to DHT11 sensor
#define DHTTYPE DHT22      // DHT11 sensor type
#define FLAME_PIN 33       // Pin connected to IR Flame sensor
#define LCD_ADDR 0x27      // I2C address of LCD display
#define LCD_COLS 20        // Number of columns in LCD display
#define LCD_ROWS 4         // Number of rows in LCD display
#define ALERT_PIN 27        // Pin connected to alert LED

char auth[] = "xq-C2QfTATi64_fJgVrOkMvDB-JlRmJD";
char ssid[] = "V2020";
char pass[] = "srinibas1100";
#define BLYNK_TEMPLATE_ID "TMPLDvuMcVuQ"
#define BLYNK_TEMPLATE_NAME "fire"
#define BLYNK_AUTH_TOKEN "xq-C2QfTATi64_fJgVrOkMvDB-JlRmJD"

DHT dht(DHTPIN, DHTTYPE);  // Initialize DHT11 sensor
WiFiClient client;

LiquidCrystal_I2C lcd(LCD_ADDR, LCD_COLS, LCD_ROWS);  // Initialize LCD display

void setup() {
  Serial.begin(9600);
  dht.begin();
  pinMode(FLAME_PIN, INPUT);
  pinMode(ALERT_PIN, OUTPUT);
  
  lcd.init();
  lcd.backlight();
  lcd.print("srinibas");
  delay(1000);

  //Blynk.begin(auth, ssid, pass);  // Connect to Blynk server
}

void loop() {
  float temperature = dht.readTemperature();  // Read temperature value from DHT11
  float humidity = dht.readHumidity();        // Read humidity value from DHT11
  int flame_state = digitalRead(FLAME_PIN);   // Read state of IR Flame sensor

  Serial.print("Temperature: ");
  Serial.print(temperature);
  Serial.print("C  |  Humidity: ");
  Serial.print(humidity);
  Serial.print("%  |  Flame: ");
  Serial.println(flame_state);

  //Blynk.virtualWrite(V0, temperature);        // Send temperature value to Blynk app
  //Blynk.virtualWrite(V1, humidity);           // Send humidity value to Blynk app
  //Blynk.virtualWrite(V2, flame_state);        // Send flame sensor state to Blynk app

  lcd.clear();
  lcd.setCursor(0, 0);
  lcd.print("Temp: ");
  lcd.print(temperature);
  lcd.print("C");
  lcd.setCursor(0, 1);
  lcd.print("Humidity: ");
  lcd.print(humidity);
  lcd.print("%");
  delay(1000);

  if (flame_state == HIGH) {
    digitalWrite(ALERT_PIN, HIGH);
    lcd.print("firee!");
   // Blynk.notify("Fire detected!");          // Send alert to Blynk app
   // Blynk.email("[email protected]", "Subject", "Message");

  } else {
    digitalWrite(ALERT_PIN, LOW);
  }

  delay(2000);                                // Wait for 2 seconds before reading again
  //Blynk.run();                                // Run Blynk background tasks
}