ESP32 + RFID: How to Read & Write Personal Data to RFID Card 🔥 | Full Tutorial

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In this video, I’ll show you how to read and write personal data to an RFID card using the ESP32 and MFRC522 module — step by step! 💳✨

We’ll create a Smart ID Card that can store your Name, ID, Blood Group, and Phone Number directly inside the RFID card memory.
No internet or cloud needed — everything is stored securely on the card itself!

🔹 What you’ll learn:

How the MFRC522 RFID Reader/Writer works
Wiring the MFRC522 with ESP32
Installing the Arduino_MFRC522v2 library
Writing personal data (name, ID, blood group, phone) into RFID memory
Reading back the stored data on Serial Monitor
Understanding RFID memory blocks and access control

📘 Components Used:

ESP32 Development Board
MFRC522 RFID Reader Module
RFID Card & Keychain Tag
Jumper Wires + Breadboard

This project is perfect for Smart ID Cards , Access Systems , and IoT Learning .
Watch till the end to understand how you can upgrade this into a full RFID Attendance System using GSM + GPS + SD Card! 🚀

📺 More Projects Coming Soon:
🔸 ESP32 RFID Attendance System with SMS Alerts
🔸 IoT Home Automation using KME Smart
🔸 ESP32-S3 Custom Development Board

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