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

char auth[] = "YourAuthTokenIgVDWPPiHrLC-T5ZEQveeuPKvpYMbKFM"; // Put your Blynk auth token here

// WiFi credentials
char ssid[] = "internet";
char pass[] = "bilal5858";

// Pins for LEDs
const int ledPinRed = 2;
const int ledPinGreen = 4;
const int ledPinBlue = 5;
const int ledPinYellow = 0;

// Pin for the buzzer
const int buzzerPin = 12;

BlynkTimer timer;

void setup() {
  // Setup Blynk
  Blynk.begin(auth, ssid, pass);
  
  // Setup pins
  pinMode(ledPinRed, OUTPUT);
  pinMode(ledPinGreen, OUTPUT);
  pinMode(ledPinBlue, OUTPUT);
  pinMode(ledPinYellow, OUTPUT);
  pinMode(buzzerPin, OUTPUT);
  
  // Setup a timer to blink LEDs
  timer.setInterval(1000L, blinkLEDs);
}

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

void blinkLEDs() {
  // Turn all LEDs off
  digitalWrite(ledPinRed, LOW);
  digitalWrite(ledPinGreen, LOW);
  digitalWrite(ledPinBlue, LOW);
  digitalWrite(ledPinYellow, LOW);
  
  // Randomly choose a LED color to turn on
  int ledColor = random(1, 5); // Random number between 1 and 4
  
  switch(ledColor) {
    case 1:
      digitalWrite(ledPinRed, HIGH);
      break;
    case 2:
      digitalWrite(ledPinGreen, HIGH);
      break;
    case 3:
      digitalWrite(ledPinBlue, HIGH);
      break;
    case 4:
      digitalWrite(ledPinYellow, HIGH);
      break;
  }
  
  // Turn on buzzer
  tone(buzzerPin, 1000); // You can adjust the frequency for different tones
  delay(100); // Adjust the duration of the sound
  noTone(buzzerPin);
}