SKU: IOWC-0169
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Seeed Studio Studio Grove NFC Module PN532 w/ Antenna

₹2,429.00 (Inclusive of all taxes)
Out of Stock

The Seeed Studio Studio Grove NFC Module integrates the PN532 transceiver for 13.56MHz contactless communication, supporting ISO14443 A/B tag read/write and P2P data exchange. It operates at 3.3V and interfaces via I2C or UART for easy integration with Arduino, Raspberry Pi, and other microcontrollers.

Features

  • Integrated PN532 NFC transceiver for 13.56MHz contactless communication.
  • Supports ISO14443 Type A and Type B protocols for reading/writing tags.
  • Enables peer-to-peer (P2P) data exchange between two NFC modules.
  • Dual host interface: I2C or UART (UART set as default).
  • Includes IPX antenna and Grove cable for rapid prototyping.

Out of stock

Description

The Grove NFC Module is a compact, ready-to-use hardware solution for integrating Near Field Communication into IoT and embedded projects. Built around the industry-standard NXP Semiconductors PN532 transceiver chip, it handles all low-level RF communication at 13.56MHz, providing a simple serial or I2C interface for the host microcontroller. This abstracts the complexity of NFC protocols, allowing developers to focus on application logic for access control, data sharing, or device pairing.

Designed for low-power operation at 3.3V, the module is compatible with a wide range of development platforms including Arduino, ESP32, and Raspberry Pi via its Grove connector system. The included flexible antenna with an IPX connector enables a typical read/write range of up to 28mm, suitable for most proximity-based applications. Its default UART mode simplifies initial setup, while the I2C option frees up serial ports for other communications.

Key Features

  • Powered by the NXP Semiconductors PN532, a highly integrated NFC controller.
  • Operates at the global 13.56MHz frequency for NFC and RFID.
  • Compatible with ISO14443 Type A (MIFARE) and Type B protocols.
  • Supports host communication via I2C or UART interfaces.
  • Enables peer-to-peer communication in initiator/target modes.
  • Includes a detachable IPX antenna for flexible placement.
  • Grove 4-pin connector ensures plug-and-play compatibility with Seeed Studio Studio ecosystem boards.
  • Low static current consumption for battery-aware designs.

Applications

  • Secure access control and door entry systems.
  • Contactless data transfer and device pairing (P2P).
  • Inventory management and asset tracking with NFC tags.
  • Smart poster interactions and product information retrieval.
  • IoT device configuration and commissioning via tap.

Technical Specifications

Transceiver ICNXP Semiconductors PN532
Wireless ProtocolNFC (13.56MHz), ISO14443 A/B
Communication InterfaceI2C, UART (Default)
Supply Voltage3.3V
Operating Current (Static)73 mA
Operating Current (Read/Write)83 mA
Max Read Distance~28 mm (dependent on antenna)
Antenna ConnectorIPX (U.FL)
Dimensions (L x W)25.43 mm x 20.35 mm
Weight12 g

Frequently Asked Questions

How do I switch between UART and I2C communication modes on the Grove NFC module?

The module defaults to UART mode. To switch to I2C, you typically need to solder a specific jumper or change a configuration setting by sending a special command sequence to the PN532 chip via UART first. Consult the Seeed Studio Studio wiki for the exact procedure, as it involves modifying the module's firmware configuration registers to enable the I2C host interface before connecting your SDA and SCL lines.

What is the maximum effective read/write distance with the included antenna?

The maximum operational distance for detecting and communicating with NFC tags is approximately 28mm under ideal conditions. This range is dependent on the size and tuning of the supplied flexible antenna. For greater distances, you would need a larger, externally tuned antenna, but note that NFC is designed for very short-range communication typically under 10cm.

Can this module read and write to all types of NFC tags?

The module supports the ISO14443 Type A (common for MIFARE Classic, Ultralight, and DESFire) and Type B standards, covering a wide range of commercial NFC tags. However, it does not support proprietary formats like Sony FeliCa or JIS X 6319-4. Always verify your tag's specific protocol compatibility with the PN532 datasheet before integration into your project.

How do I connect and power this module with an Arduino Uno?

Using the supplied Grove cable, connect the module's 4-pin connector to an I2C Grove port (if configured for I2C) or a digital Grove port for UART on a Seeed Studio Studio base shield. For direct wiring, connect VCC to 3.3V, GND to GND, and the TX/RX or SDA/SCL pins accordingly. Ensure your Arduino provides a stable 3.3V supply, as the module is not 5V tolerant on its data lines.

Package Includes

  • 1 x Grove NFC Module
  • 1 x NFC Antenna
  • 1 x IPX Connect Wire (120mm)
  • 1 x 24AWG Grove Cable (4P-4P-2.0-200mm)

Additional Information

Weight 0.012 kg
Dimensions 2.543 × 2.035 cm