#define BLYNK_TEMPLATE_ID "TMPL61MmqLL60"
#define BLYNK_TEMPLATE_NAME "LED BUZZER"
#define BLYNK_AUTH_TOKEN "CXVMRTsSd4X4hliD3e2nD3Ns-7U9-TNO"

#include <WiFi.h> // Include the ESP32 WiFi library
#include <BlynkSimpleEsp32.h> // Include the Blynk library for ESP32
#include <LiquidCrystal.h> // Include the LiquidCrystal library

#define BLYNK_PRINT Serial

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

#define LED_PIN 2 // Define the LED pin as D2 for ESP32
#define BUZZER_PIN 4 // Define the buzzer pin as D4 for ESP32

LiquidCrystal lcd(12, 13, 14, 15, 16, 17); // Initialize the LCD with pin connections

BlynkTimer timer;

void setup() {
  Serial.begin(9600);
  Blynk.begin(auth, ssid, pass);
  pinMode(LED_PIN, OUTPUT); // Set LED pin as output
  pinMode(BUZZER_PIN, OUTPUT); // Set buzzer pin as output

  // Initialize the LCD
  lcd.begin(16, 2);
  lcd.setCursor(0, 0);
  lcd.print("Ready to start...");
}

void loop() {
  Blynk.run();
  timer.run();
}

BLYNK_WRITE(V0) {
  int ledStatus = param.asInt();
  if (ledStatus == 1) {
    digitalWrite(LED_PIN, HIGH); // Turn on the LED
    Blynk.virtualWrite(V1, "Access Granted"); // Send message to Blynk app
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Access Granted"); // Display "Access Granted" on the LCD
}
}

BLYNK_WRITE(V2) {
  int buzzerStatus = param.asInt();
  if (buzzerStatus == 1) {
    digitalWrite(BUZZER_PIN, HIGH); // Turn on the buzzer
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Access Denied"); // Display "Access Denied" on the LCD
  } else {
    digitalWrite(BUZZER_PIN, LOW); // Turn off the buzzer
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print("Ready to start..."); // Display default message on the LCD
  }
}