M5Stack RFID2 Radio Frequency Identification Sensor Module with WS1850S MHz Reader for Arduino IoT Projects, featuring 13.56MHz operating frequency, ISO14443A MIFARE NTAG protocols, 64-byte buffer, and up to 20mm reading distance.
M5Stack RFID2 Radio Frequency Identification Sensor Module with WS1850S MHz Reader for Arduino IoT Projects, featuring 13.56MHz operating frequency, ISO14443A MIFARE NTAG protocols, 64-byte buffer, and up to 20mm reading distance.
M5Stack RFID2 13.56MHz Radio Frequency Identification Sensor Module for IoT and Arduino Development
This compact RFID sensor module provides wireless identification capabilities for Internet of Things projects, prototyping, and educational applications. Based on the WS1850S reader chip, it operates at the standard 13.56MHz frequency used in many RFID systems, offering compatibility with common tag protocols. The module's I2C interface simplifies connection to various microcontroller platforms, while its 64-byte transceiver buffer ensures efficient data handling during read and write operations. With a reading distance of less than 20mm, it's designed for close-proximity applications where precise positioning matters. Two Lego-compatible mounting holes allow for straightforward physical integration into prototype structures and custom enclosures.
Features and Construction
The RFID2 module combines multiple functional elements in a compact form factor designed for developer convenience and project flexibility.
Material and Build
The module comprises electronic components mounted on a PCB substrate, including the WS1850S RFID reader chip responsible for radio frequency transmission and reception. The construction includes an I2C interface circuit that manages communication between the RFID reader and host microcontroller. The provided HY2.0-4P cable features connectors designed for reliable power delivery and data transmission between the module and development boards.
Size and Practical Fit
Measuring 7x2 units (with the unit measurement not specified in the source), the module maintains a compact footprint suitable for integration into various project enclosures and prototype cases. Two strategically placed Lego-compatible holes enable secure mounting using standard Lego technic pins or compatible fasteners, allowing for modular construction without specialized tools. The small form factor accommodates space-constrained applications while maintaining full RFID functionality.
Uses and Placement
This RFID module serves multiple application scenarios ranging from educational projects to functional IoT implementations, with its protocol support enabling diverse use cases.
Event or Professional Use
In professional and event settings, the module can facilitate access control systems, inventory management solutions, and attendance tracking applications. Its support for ISO14443A, MIFARE, and NTAG protocols ensures compatibility with many commercial RFID tags used in identification systems. The operating temperature range from -20°C to 85°C allows deployment in both climate-controlled indoor environments and more challenging outdoor conditions where temperature fluctuations occur.
Everyday Home Use
For home and hobbyist applications, the module enables smart home projects like RFID-based door locks, pet feeding systems, or personalised device activation. The Arduino and UIFlow platform support, with both Blockly and Python programming options, makes it accessible to users with varying technical expertise. The less than 20mm reading distance provides security benefits for applications requiring close proximity verification, while preventing accidental reads from distant tags.
Benefits and Buying Value
The RFID2 module offers practical advantages for developers seeking reliable RFID capabilities without extensive RF engineering knowledge or complex implementation requirements.
Reuse and Low Maintenance
With data storage longevity exceeding 10 years as indicated in the source specifications, the module maintains tag information reliably over extended periods without degradation. The I2C interface's standard protocol ensures compatibility across multiple microcontroller families and future project iterations. Minimal power requirements during sleep mode (1μA consumption) support battery-powered applications where energy efficiency matters.
Why Choose This Product
This module provides a complete RFID solution in a single package, eliminating the need for separate antenna components or complex impedance matching circuits. The inclusion of development platform support for both Arduino (via traditional coding) and UIFlow (via Blockly or Python) accommodates different programming preferences and skill levels. The combination of protocol support, buffer capacity, and physical mounting options creates a versatile foundation for various identification-based applications.
