| Price | $4 |
|---|---|
| Category | Communication Modules |
| Availability | In stock |
| Delivery | Shipped across Lebanon, or collect from the lab |
The budget 13.56 MHz RFID reader/writer, and the one most Arduino tutorials assume. An NXP MFRC522 reads and writes ISO 14443A / Mifare cards over SPI, with about 5 cm of range from the PCB coil, and a white card and a blue keyfob are included. It runs on 3.3V only - 5V on VCC will kill it - though its SPI lines cope with an Uno's 5V logic. Cheaper and simpler than a PN532, but it only reads cards: no NFC with a phone, and no card emulation.
Key features
- NXP MFRC522, 13.56 MHz, reads and writes
- ISO 14443A / Mifare Classic 1K, 4K and Ultralight
- SPI up to 10 Mbit/s on an 8-pin header
- 3.3V supply only - 13-26 mA active, 10 uA asleep
- ~5 cm read range from the on-board coil
- One white card and one keyfob tag included
Details
Specifications
| Chipset | NXP MFRC522 |
|---|---|
| Frequency | 13.56 MHz |
| Card standards | ISO/IEC 14443A, Mifare Classic 1K/4K, Mifare Ultralight |
| Interface | SPI, up to 10 Mbit/s - this board is wired for SPI |
| Operating voltage | 2.5-3.3V (use 3.3V) - do not feed 5V |
| Current | 13-26 mA active, 10 uA in sleep |
| Read distance | ~5 cm |
| Antenna | On-board PCB coil |
| Pins | SDA, SCK, MOSI, MISO, IRQ, GND, RST, 3.3V |
| Included | 1 white card + 1 keyfob tag |
