RYRR30D NFC Reader/Writer Module

The REYAX RYRR30D is an NFC reader/writer module operating at 13.56 MHz, supporting the three major contactless communication standards — ISO 14443A, ISO 14443B, and ISO 15693 — along with Apple Value Added Services (VAS) and Google SmartTap protocols for mobile wallet integration. This comprehensive protocol support enables a single RYRR30D module to read NFC tags, authenticate Mifare cards (Classic, DESFire, Ultralight), interact with NFC-enabled smartphones for mobile loyalty and access credentials, and communicate with ISO 15693 vicinity cards used in library systems and industrial asset tracking.

Technical Specifications

Feature	Specification
Frequency	13.56 MHz
Standards	ISO 14443A, ISO 14443B, ISO 15693
Card Support	Mifare Classic, Mifare DESFire, Mifare Ultralight, NTAG
Mobile Protocols	Apple VAS, Google SmartTap
NFC Forum Tags	Type 1, Type 2, Type 3, Type 4, Type 5
Interface	UART with AT command firmware
Read Range	Up to 50 mm (antenna dependent)
Supply Voltage	4.74 to 5.25V
RF Output Power	30 dBm
RF Transmit Peak Current	550 mA
Average Current	150 mA
Communication Range	3 cm @iPhone 14 Pro
RS-232 TXD/RXD	+/- 7 V
USB Version	2.0
Reset Time	100 ms
Baud Rate	115200 bps
RF Frequency Range	13.553 to 13.567 MHz
Interface	+3.3V UART / RS-232 / USB2.0
Antenna	External loop antenna (customizable)
Operating Temperature	-40 to +85 °C

Apple VAS and Google SmartTap: Mobile Wallet Integration

The RYRR30D’s support for Apple Value Added Services (VAS) and Google SmartTap protocols enables direct interaction with mobile wallets on iOS and Android devices. Apple VAS allows the module to read loyalty cards, event tickets, boarding passes, and corporate badges stored in Apple Wallet, while Google SmartTap provides equivalent functionality for Google Wallet credentials. This capability is essential for modern point-of-interaction deployments where physical card issuance is being replaced by smartphone-based credentials.

Retail loyalty programs, event venues, corporate access control systems, and transit operators deploy NFC readers that must interact with both physical cards and mobile credentials simultaneously. The RYRR30D handles both use cases from a single module — a Mifare DESFire employee badge and an Apple Wallet corporate credential trigger the same access control response, enabling organizations to transition from physical to digital credentials at their own pace without replacing reader hardware.

UART AT Command Integration

The AT command interface over UART maintains the integration simplicity that characterizes all REYAX modules. Host MCUs send serial commands to poll for card presence, read card UIDs, authenticate sectors, read and write data blocks, and interact with mobile wallet protocols. The RYRR30D handles the complete NFC protocol stack internally — collision detection, anti-collision resolution, authentication handshakes, and data framing — presenting a clean command-response interface to the host application. This abstraction eliminates the need for the application developer to understand the low-level NFC protocol state machines, reducing development time from weeks to days.

The external loop antenna design allows system designers to optimize read range and field uniformity for their specific enclosure and mounting configuration. Compact antennas for handheld readers, large-area antennas for tabletop payment terminals, and custom-shaped antennas for turnstile and access control installations are all supported by the RYRR30D’s configurable RF output stage.

Deployment Applications

Contactless payment terminals in retail, hospitality, and vending applications use the RYRR30D to accept both physical contactless cards and mobile wallet transactions. Access control systems in corporate offices, residential complexes, and secure facilities deploy the module for multi-credential authentication supporting both traditional Mifare cards and smartphone-based digital keys. Library and asset management systems use ISO 15693 vicinity card support for inventory tracking and patron self-checkout. Event ticketing platforms integrate the RYRR30D to validate NFC tickets stored on physical tags or mobile wallet passes.

GSAS Micro Systems provides REYAX RYRR30D modules from Indian inventory with INR invoicing, along with antenna design consultation, mobile wallet integration support, and NFC system architecture guidance for contactless payment and access control projects across India.