#define BLYNK_TEMPLATE_ID "TMPL4mhud2_gw"
#define BLYNK_TEMPLATE_NAME "IoT in GIS"
#define BLYNK_AUTH_TOKEN "zuLUQu7kWSfAjKSJVo9IZeexKPoU0co4"

#include <WiFi.h>
#include <BlynkSimpleEsp32.h>
#include <TinyGPS++.h>

// ------ GPS Module Configuration ------
#define GPS_BAUDRATE 9600  // Default baud rate for NEO-6M
TinyGPSPlus gps;

// ------ Motion Sensor Configuration ------
const int motionSensorPin = 13;  // PIR sensor pin (connected to GPIO 13)
bool motionDetected = false;

// ------ Blynk Timer Setup ------
BlynkTimer timer;

// ------ WiFi Credentials ------
char ssid[] = "Wokwi-GUEST"; // Use Wokwi-GUEST for Wokwi simulation
char pass[] = "";

// ------ Function Declarations ------
void checkMotion();
void getGPSData();

void setup() {
  Serial.begin(115200);          // Initialize serial monitor
  Serial1.begin(GPS_BAUDRATE, SERIAL_8N1, 23, 22); // GPS module on RX=23, TX=22
  pinMode(motionSensorPin, INPUT); // Set motion sensor pin as input

  // Connect to WiFi and Blynk
  Serial.println("Connecting to WiFi...");
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);
  Serial.println("Connected to Blynk!");

  timer.setInterval(2000L, checkMotion);  // Check for motion every 2 seconds
}

void checkMotion() {
  if (digitalRead(motionSensorPin) == HIGH) {
    if (!motionDetected) { // Only trigger once per motion event
      Serial.println("Motion detected!");
      motionDetected = true;
      getGPSData();  // Get GPS data when motion is detected
    }
  } else {
    motionDetected = false; // Reset motion flag when no motion
  }
}

// ------ Function to Get GPS Data ------
void getGPSData() {
  if (gps.location.isValid()) {
    float latitude = gps.location.lat();
    float longitude = gps.location.lng();

    Serial.print("Latitude: ");
    Serial.println(latitude, 6);
    Serial.print("Longitude: ");
    Serial.println(longitude, 6);

    // Send GPS data to Blynk
    Blynk.virtualWrite(V0, latitude);
    Blynk.virtualWrite(V1, longitude);
  } else {
    Serial.println("Waiting for valid GPS data...");
  }
}

// ------ Continuous GPS Data Parsing ------
void loop() {
  Blynk.run();  // Run Blynk tasks
  timer.run();  // Run timer tasks

  // Continuously read GPS data
  while (Serial1.available() > 0) {
    gps.encode(Serial1.read());
  }
}




























// #define BLYNK_TEMPLATE_ID "TMPL4mhud2_gw"
// #define BLYNK_TEMPLATE_NAME "IoT in GIS"
// #define BLYNK_AUTH_TOKEN "zuLUQu7kWSfAjKSJVo9IZeexKPoU0co4"


// // ------ WiFi Credentials ------
// char ssid[] = "Wokwi-GUEST";
// char pass[] = "";

// #include <HardwareSerial.h>

// #define PIR_PIN 13 // PIR motion sensor output pin
// HardwareSerial gpsSerial(1); // Use Serial1 for GPS communication

// void setup() {
//     Serial.begin(115200);      // Serial monitor
//     gpsSerial.begin(9600, SERIAL_8N1, 16, 17); // GPS module on Serial1 (RX=16, TX=17)
//     pinMode(PIR_PIN, INPUT);
//     Serial.println("System Initialized");
// }

// void loop() {
//     // Read PIR sensor
//     int motionDetected = digitalRead(PIR_PIN);
//     if (motionDetected) {
//         Serial.println("Motion detected!");
//     }

//     // Read GPS data
//     while (gpsSerial.available()) {
//         char c = gpsSerial.read();
//         Serial.write(c); // Forward GPS data to serial monitor
//     }
    
//     delay(500); // Reduce CPU usage
// }