PN532 NFC RFID Module Built-in Antenna I2C SPI HSU
PN532 NFC RFID Module Built-in Antenna I2C SPI HSU
PN532 NFC RFID Read/Write Module – Built-in Antenna, I2C / SPI / HSU
The PN532 NFC RFID CV3 Module is a compact, versatile near-field communication board designed for makers, hobbyists, and electronics enthusiasts. Whether you're building a smart access system, automating a home project, or experimenting with contactless card technology, this module delivers reliable performance straight out of the box.
Key Features
- Integrated Onboard Antenna – No external coil required; stable, consistent card-reading performance right away.
- Triple Interface Support – Seamlessly switch between I2C, SPI, and HSU (UART) communication modes to suit any microcontroller or development board.
- Multi-Card Compatibility – Works with a wide range of RFID IC cards including Mifare Classic (1K/4K), Mifare Ultralight, NTAG series, and more.
- Fast Recognition Response – Quick NFC tag and card detection keeps your projects snappy and responsive.
- PN532 Chip – Industry-standard NXP PN532 controller chip for proven, dependable NFC/RFID operations.
- Compact Form Factor – Dimensions of approximately 4.32 × 4.1 cm (1.7 × 1.61 in); lightweight and easy to integrate into enclosures or breadboards.
- Beginner-Friendly – Low development and debugging threshold; widely supported by Arduino, Raspberry Pi, and other popular platforms.
Specifications
- Chip: NXP PN532
- Operating Frequency: 13.56 MHz
- Communication Interfaces: I2C, SPI, HSU (selectable via DIP switches)
- Supported Standards: ISO 14443A/B, MIFARE, FeliCa, ISO/IEC 18092 (NFC)
- Operating Voltage: 3.3V – 5V
- Dimensions: ~4.32 × 4.1 cm / 1.7 × 1.61 in
- Antenna: Built-in PCB antenna
What Can You Build With It?
- Smart door locks and access control systems
- Contactless attendance or time-tracking systems
- NFC tag reading and writing projects
- DIY smart home automation triggers
- RFID card duplication and testing tools
- Interactive Arduino / Raspberry Pi experiments
In the Box
- 1 × PN532 NFC RFID CV3 Module with Built-in Antenna
For additional guidance on RFID and NFC technology standards, visit the NIST Identity & Access Management resource page.
Frequently Asked Questions
Q: What communication interfaces does the PN532 NFC RFID module support?
A: The PN532 NFC RFID CV3 Module supports three communication interfaces — I2C, SPI, and HSU (UART) — selectable via onboard DIP switches. This makes it compatible with a wide variety of microcontrollers and development boards, including Arduino, Raspberry Pi, ESP32, and more.
Q: Does the PN532 module need an external antenna?
A: No. The module features a built-in PCB antenna, so no external coil or antenna is required. Simply connect it to your development board and start reading or writing NFC/RFID tags immediately.
Q: Which RFID and NFC card types are compatible with this module?
A: The PN532 module is compatible with a broad range of cards and tags operating at 13.56 MHz, including Mifare Classic 1K/4K, Mifare Ultralight, NTAG213/215/216, FeliCa cards, and ISO 14443A/B compliant tags — making it ideal for most NFC/RFID DIY projects.
Q: Is this module suitable for beginners?
A: Absolutely. The PN532 is one of the most well-documented NFC controller chips available, with extensive library support for Arduino and Raspberry Pi. Its low setup threshold and broad community resources make it an excellent choice for both beginners and experienced developers.