#define BLYNK_TEMPLATE_ID "TMPL6sjSCFnl3"
#define BLYNK_TEMPLATE_NAME "PIR Sensor Alarm"
#define BLYNK_AUTH_TOKEN "BPYDNxgwmE6JYXXkBoVWDDSEFRDHm4BR"
#define BLYNK_PRINT Serial

#include <BlynkSimpleEsp32.h>

// Hardware connections
const int pir = 14;         // PIR Sensor
const int sound = 27;       // Sound Sensor
const int led = 13;         // LED
const int buzzer = 12;      // Buzzer

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

// Timer
BlynkTimer timer;

bool alarmEnabled = true;

// Blynk Switch (Virtual Pin V0) to turn alarm ON/OFF
BLYNK_WRITE(V0) {
  alarmEnabled = param.asInt();
}

// Function to detect motion or sound
void checkSensors() {
  int motionDetected = digitalRead(pir);
  int soundDetected = digitalRead(sound);

  if (alarmEnabled && (motionDetected == HIGH || soundDetected == HIGH)) {
    Serial.println("Intrusion Detected!");
    digitalWrite(led, HIGH);
    digitalWrite(buzzer, HIGH);
    Blynk.virtualWrite(V1, 1);  // Turn on virtual LED in Blynk
  } else {
    digitalWrite(led, LOW);
    digitalWrite(buzzer, LOW);
    Blynk.virtualWrite(V1, 0);  // Turn off virtual LED in Blynk
  }
}

void setup() {
  Serial.begin(9600);
  pinMode(pir, INPUT);
  pinMode(sound, INPUT);
  pinMode(led, OUTPUT);
  pinMode(buzzer, OUTPUT);

  Blynk.begin(auth, ssid, pass);
  timer.setInterval(2000L, checkSensors);  // Call every 2 seconds
}

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