{"product_id":"m5stack-rfid-unit-ws1850s-13-56mhz-sensor-for-iot-projects-arduino-and-uiflow-development-with-64-byte-buffer-i2c-fast-mode-and-20mm-reading-distance","title":"M5Stack RFID Unit WS1850S 13.56MHz Sensor for IoT Projects, Arduino and UIFlow Development with 64-Byte Buffer, I2C Fast Mode and 20mm Reading Distance","description":"\u003ch1\u003eM5Stack WS1850S RFID Unit: A 13.56MHz Sensor for IoT and Maker Projects\u003c\/h1\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/1d917d84-2b22-47cb-955c-6faab00e4b14.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis RFID unit is designed as a building block for adding contactless identification capabilities to Internet of Things applications and electronic projects. Operating at the common 13.56MHz frequency, it reads and writes to tags compatible with ISO14443A, MIFARE, and NTAG standards. Its primary value lies in its integration-ready design, supporting popular development environments like Arduino and UIFlow, and its inclusion of practical mounting and connection features. With a compact footprint and a specified operating range from -20°C to 85°C, it is suited for both prototyping and deployment in varied conditions.\u003c\/p\u003e\n\u003ch2\u003eFeatures and Construction\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/2ff31f8f-39d7-430e-943f-c75ecf52d34c.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe unit's functionality is built around core technical specifications that define its performance and compatibility. Its construction is centred on a printed circuit board housing the necessary electronic components for RFID communication, data handling, and host controller interfacing.\u003c\/p\u003e\n\u003ch3\u003eMaterial and Build\u003c\/h3\u003e\n\u003cp\u003eThe sensor is assembled on a standard PCB. The choice of electronic components is driven by the requirements of the 13.56MHz operating frequency, I2C communication, and the need to function within a -20°C to 85°C temperature range. The unit is supplied with a HY2.0-4P cable for physical connection to a host board. Two Lego-compatible holes are integrated into the design, offering a simple mechanical mounting solution for modular builds and prototypes.\u003c\/p\u003e\n\u003ch3\u003eSize and Practical Fit\u003c\/h3\u003e\n\u003cp\u003eThe source lists the product size as 7 by 2 units, though the specific unit of measurement (e.g., cm) is not provided. This indicates a generally compact, rectangular form factor. The inclusion of the Lego-compatible holes suggests this size is designed to interoperate with other modular components. The typical reading distance for RFID operations is stated to be under 20mm, which dictates how the unit must be positioned relative to tags in a final assembly.\u003c\/p\u003e\n\u003ch2\u003eUses and Placement\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/5063c54e-f365-4cd0-bebc-ba7ec0aaca6f.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThis RFID sensor is targeted at the intersection of education, prototyping, and functional IoT deployment. Its compatibility with widespread platforms lowers the barrier to entry for creating systems that require secure identification, access control, or data logging.\u003c\/p\u003e\n\u003ch3\u003eEvent or Professional Use\u003c\/h3\u003e\n\u003cp\u003eIn professional or event contexts, the sensor could be embedded into systems for attendee tracking, inventory management of tagged items, or interactive installations. Its support for standard protocols like ISO14443A and MIFARE means it can work with a broad ecosystem of existing RFID tags and cards. The wide operating temperature range allows for use in environments outside controlled indoor settings, provided the host electronics are similarly rated.\u003c\/p\u003e\n\u003ch3\u003eEveryday Home Use\u003c\/h3\u003e\n\u003cp\u003eFor makers and hobbyists, this unit is a practical component for home automation projects. It could be used to create smart locks, pet feeders activated by a tag on a collar, or organised storage systems that identify tagged toolboxes or containers. The Arduino and UIFlow support, the latter allowing programming via Blockly or Python, makes it accessible to users with different skill levels, from beginners to advanced coders.\u003c\/p\u003e\n\u003ch2\u003eBenefits and Buying Value\u003c\/h2\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/55c24d57-3746-4a2f-bdf8-2be93fa8214e.webp\"\u003e\u003c\/div\u003e\n\u003cp\u003eThe value of this product is derived from its specific technical attributes and its role as a specialised component within a larger project ecosystem. It provides a focused solution for adding RFID functionality without requiring deep RF engineering expertise.\u003c\/p\u003e\n\u003ch3\u003eReuse and Low Maintenance\u003c\/h3\u003e\n\u003cp\u003eThe unit is designed as a reusable electronic module. Its stated data storage longevity of over 10 years for tags suggests a focus on persistent applications. Maintenance is primarily related to the software and integration side; the hardware itself has no user-serviceable parts. The low sleep power consumption of 1uA, as listed in the product options, contributes to energy efficiency in battery-powered projects.\u003c\/p\u003e\n\u003ch3\u003eWhy Choose This Product\u003c\/h3\u003e\n\u003cp\u003eChoosing this RFID unit is logical for users already within or entering the M5Stack ecosystem, or for those seeking a 13.56MHz sensor with explicit Arduino and Python support. Its concrete differentiators include the 64-byte transceiver buffer for handling data packets, the high-speed I2C mode (up to 3400 kbit\/s) for faster data transfer, and the inclusion of the connection cable and mounting holes. It provides a documented, all-in-one solution for a specific frequency and protocol set, as opposed to sourcing and integrating individual ICs and antennas.\u003c\/p\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/64d5c590-0305-4c21-b7a4-1984960e7916.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/8dafee36-ecb7-40ec-a3b5-88f4e8e0e0d0.webp\"\u003e\u003c\/div\u003e\u003cdiv style=\"text-align: center;\"\u003e\u003cimg alt=\"M5Stack WS1850S 13.56MHz RFID sensor module with HY2.0-4P connection cable.\" src=\"https:\/\/images.seoo.uk\/src\/products\/shopify_export\/US14\/563\/2025-09-28\/original-image\/e545ccb6-f8e0-44e4-b11e-c104d21f4ee2.webp\"\u003e\u003c\/div\u003e","brand":"test55576c1e8fx0q","offers":[{"title":"M5StackRFID2 \/ 4dBm \/ 1uA","offer_id":54572837175638,"sku":"CJYD228457301AZ","price":24.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1041\/3555\/7462\/files\/1d917d84-2b22-47cb-955c-6faab00e4b14.webp?v=1784233688","url":"https:\/\/auramelt.ivorique.com\/products\/m5stack-rfid-unit-ws1850s-13-56mhz-sensor-for-iot-projects-arduino-and-uiflow-development-with-64-byte-buffer-i2c-fast-mode-and-20mm-reading-distance","provider":"AuraMelt.com","version":"1.0","type":"link"}