Tech Gyan Set
Published © MIT

Smart School Bag Tracker (Kids Safety)

An IoT-based smart school bag tracker that provides real-time GPS location and emergency alerts to keep kids safe. 🎒📡

BeginnerFull instructions provided8 hours251
Smart School Bag Tracker (Kids Safety)

Things used in this project

Software apps and online services

Arduino IDE
Arduino IDE

Story

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Code

Complete ESP32 GPS Tracking Code

C/C++
// 1️⃣ Include Required Libraries
1  #include <WiFi.h>              // WiFi connectivity ke liye
2  #include <HTTPClient.h>        // Data server par bhejne ke liye
3  #include <TinyGPS++.h>         // GPS data parse karne ke liye

// Use: Ye libraries internet aur GPS communication enable karti hain.
// 2️⃣ WiFi Credentials
4  const char* ssid = "YOUR_WIFI_NAME";
5  const char* password = "YOUR_WIFI_PASSWORD";

// Use: ESP32 ko internet se connect karta hai.
// 3️⃣ Server URL (Location Send Karne Ke Liye)
6  const char* serverName = "http://yourserver.com/update";

// Use: Location data jahan send hoga wo URL define karta hai.
// 4️⃣ GPS Setup
7  TinyGPSPlus gps;               
8  HardwareSerial gpsSerial(1);  

// Use: TinyGPS object GPS se latitude & longitude read karega.
// 5️⃣ SOS Button Pin
9  #define SOS_BUTTON 5

// Use: Emergency alert ke liye push button define karta hai.
// 6️⃣ Setup Function
10 void setup() {
11   Serial.begin(115200);       
12   gpsSerial.begin(9600, SERIAL_8N1, 16, 17); 
13   pinMode(SOS_BUTTON, INPUT_PULLUP);        

14   WiFi.begin(ssid, password);
15   while (WiFi.status() != WL_CONNECTED) {
16     delay(500);
17     Serial.print(".");
18   }
19   Serial.println("WiFi Connected");
20 }

// Use: GPS start karta hai aur WiFi connection establish karta hai.
// 7️⃣ Main Loop
21 void loop() {

22   while (gpsSerial.available() > 0) {
23     gps.encode(gpsSerial.read());
24   }

🔹 Use: GPS module se incoming data read karta hai.

25   if (gps.location.isValid()) {

26     float latitude = gps.location.lat();
27     float longitude = gps.location.lng();

🔹 Use: Valid GPS signal milne par latitude aur longitude read karta hai.

28     Serial.print("Latitude: ");
29     Serial.println(latitude);
30     Serial.print("Longitude: ");
31     Serial.println(longitude);

🔹 Use: Debug ke liye serial monitor par location print karta hai.

32     if (WiFi.status() == WL_CONNECTED) {
33       HTTPClient http;
34       String serverPath = String(serverName) + "?lat=" + String(latitude,6) + "&lon=" + String(longitude,6);
35       http.begin(serverPath);
36       int httpResponseCode = http.GET();
37       http.end();
38     }

🔹 Use: Latitude & longitude server par HTTP GET request se send karta hai.

39   }
// 8️⃣ SOS Button Logic
40   if (digitalRead(SOS_BUTTON) == LOW) {
41     Serial.println("SOS Alert Triggered!");

🔹 Use: Emergency button press detect karta hai.

42     if (WiFi.status() == WL_CONNECTED) {
43       HTTPClient http;
44       String alertPath = String(serverName) + "?alert=SOS";
45       http.begin(alertPath);
46       http.GET();
47       http.end();
48     }

49     delay(2000);
50   }

🔹 Use: SOS press hone par emergency alert server ko bhejta hai.

51   delay(5000);
52 }

🔹 Use: Har 5 second me location update karta hai.

Credits

Tech Gyan Set
32 projects • 14 followers
Tech Gyan Set | IoT & Embedded Systems Creator | Arduino, ESP32, GSM & NodeMCU Projects | Smart Home & Real-Life Automation Tutorials
Thanks to Tech Gyan Set .

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Related channels and tags
  • Home Automation
  • Home Automation
  • Internet of Things
  • Internet of Things
  • Security
  • Security