RFID Cards 13.56MHz MIFARE Classic – Pack of 5 for MFRC522
RFID Cards 13.56MHz MIFARE Classic – Pack of 5 for MFRC522
These 13.56MHz MIFARE Classic RFID cards come in a pack of five, designed to work seamlessly with the popular MFRC522 reader module for Arduino, ESP32, and Raspberry Pi projects.
Key Specifications
| Frequency | 13.56 MHz |
|---|---|
| Protocol | ISO 14443A |
| Chip | MIFARE Classic 1K |
| Memory | 1 KB (16 sectors × 4 blocks) |
| Data Retention | 10 years |
| Write Endurance | ~100,000 cycles |
| Read Range | Up to 10 cm (with MFRC522) |
| Dimensions | 85.6 × 54 mm (CR80) |
What You Can Build With This
- RFID Door Lock: Use an Arduino Uno with MFRC522 to unlock a door when a matching card is scanned.
- IoT Attendance Logger: Log student attendance by scanning RFID cards and send data to a cloud spreadsheet via ESP32.
- Library Self-Checkout: Build a kiosk with Raspberry Pi and RFID to track borrowed books in real time.
- Smart Classroom Attendance: An RFID-based attendance recorder for CBSE practicals or ATL Tinkering Lab demonstrations.
- Multi-factor Authentication: Combine RFID card scan with PIN entry on ESP32 for a secure access control system.
Compatibility
| Platform | Compatible | Connection | Library / Method |
|---|---|---|---|
| Arduino Uno R3 | Yes | SPI via MFRC522 | MFRC522 library |
| Arduino Nano | Yes | SPI via MFRC522 | MFRC522 library |
| Arduino Mega 2560 | Yes | SPI via MFRC522 | MFRC522 library |
| ESP8266 NodeMCU | Yes | SPI via MFRC522 | MFRC522 library |
| ESP32 Dev Board | Yes | SPI via MFRC522 | MFRC522 library |
| Raspberry Pi Pico | Yes | SPI via MFRC522 | MFRC522-pico library |
| Raspberry Pi 4 / 5 | Yes | SPI via MFRC522 | MFRC522-python library |
Wiring and Interface Notes
Connect the MFRC522 reader to your microcontroller using SPI: typically wire SS to pin 10, RST to 9, SCK to 13, MOSI to 11, and MISO to 12 on an Arduino Uno. The cards are passive, requiring no power—simply hold them near the reader to read or write data. For platforms like Raspberry Pi, enable SPI in settings and use the corresponding MFRC522 Python library.
Frequently Asked Questions
How do I write data to these MIFARE Classic cards?
You can write up to 1KB of data using the MFRC522 library’s write functions, but each sector must be authenticated with a key first. Default keys are often FFFFFFFFFFFF for unused cards.
Can these cards be used for long-range identification?
No, the maximum read range is about 10 cm with the MFRC522 reader. For longer range, consider UHF RFID tags.
What you can build with this
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items