{"product_id":"mfrc-522-rc-522-rc522-antenna-rfid-ic-wireless-module-for-arduino-ic-key-spi-writer-reader-ic-card-proximity-module","title":"MFRC-522 RC-522 RC522 Antenna RFID IC Wireless Module For Arduino IC KEY SPI Writer Reader IC Card Proximity Module","description":"\u003cdiv\u003e\n\u003cp\u003eMeet the MFRC-522 RC522 RFID module — a compact, dependable reader\/writer designed to power Arduino and other microcontroller projects. Built around the MFRC-522 IC with an integrated 13.56 MHz antenna, this proximity module delivers reliable contactless communication with ISO\/IEC 14443A tags, including common MIFARE Classic and Ultralight cards. Connect via SPI, load a few lines of code, and you can read card UIDs, access data blocks, and unlock a world of interactive, credential-based projects.\u003c\/p\u003e \u003ch2\u003eAll-in-one RFID solution\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eIntegrated antenna and RC522 IC in a single compact package that eliminates the need for external coils or RF tuning\u003c\/li\u003e \u003cli\u003eSPI interface for straightforward integration with Arduino and other microcontrollers\u003c\/li\u003e \u003cli\u003eISO\/IEC 14443A compatibility supports a wide range of cards and tags\u003c\/li\u003e \u003cli\u003eCost-effective, beginner-friendly solution ideal for rapid prototyping and education\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eHow it works\u003c\/h2\u003e\n\u003cp\u003eThe module operates at 13.56 MHz and communicates with a host microcontroller over SPI. It can detect and read data from compatible cards within a few centimeters, depending on card type and orientation. When wiring this module to an Arduino (or similar MCU), you’ll typically connect:\n\u003c\/p\u003e\n\u003cul\u003e \u003cli\u003eSCK to the MCU’s SPI clock\u003c\/li\u003e \u003cli\u003eMOSI to MOSI\u003c\/li\u003e \u003cli\u003eMISO to MISO\u003c\/li\u003e \u003cli\u003eSDA\/SS to a digital chip-select pin\u003c\/li\u003e \u003cli\u003eRST to a reset pin\u003c\/li\u003e \u003cli\u003eGND to ground\u003c\/li\u003e \u003cli\u003e3.3V (or 5V with proper level shifting) to power and logic\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGetting started is straightforward with the MFRC-522 library and example sketches. Install the library in your development environment, run a UID read example to confirm hardware wiring, then expand to read blocks, write simple data, or implement anti-collision when multiple tags are present.\u003c\/p\u003e \u003ch2\u003eWhy choose this module\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eAll-in-one package with an onboard antenna reduces assembly steps and the risk of miswiring common RFID coils\u003c\/li\u003e \u003cli\u003eAccessible entry point for education and experimentation, backed by abundant community code and tutorials\u003c\/li\u003e \u003cli\u003eVersatile tag support with broad ISO\/IEC 14443A card compatibility makes it suitable for diverse projects without bespoke hardware\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch2\u003eIdeal use cases\u003c\/h2\u003e\n\u003cul\u003e \u003cli\u003eHome or small-office access control prototypes — quickly verify a badge or card to unlock a door or grant entry in a project\u003c\/li\u003e \u003cli\u003eAsset tracking and inventory demos — tag items and read identifiers to monitor movement or presence\u003c\/li\u003e \u003cli\u003eInteractive installations and education kits — demonstrate wireless proximity sensing and data exchange in real time\u003c\/li\u003e \u003cli\u003eDIY attendance or check-in systems for clubs, classes, or maker spaces — lightweight, inexpensive credential handling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Electronics","offers":[{"title":"IC Card","offer_id":56769899233628,"sku":"14:366#IC Card","price":0.38,"currency_code":"GBP","in_stock":true},{"title":"IC Key Blue","offer_id":56769899266396,"sku":"14:1052#IC Key Blue","price":0.44,"currency_code":"GBP","in_stock":true},{"title":"IC Key Red","offer_id":56769899299164,"sku":"14:496#IC Key Red","price":0.44,"currency_code":"GBP","in_stock":true},{"title":"RC522 Board","offer_id":56769899331932,"sku":"14:1254#RC522 Board","price":0.82,"currency_code":"GBP","in_stock":true},{"title":"RC522 Set","offer_id":56769899364700,"sku":"14:771#RC522 Set","price":0.96,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1000\/2042\/0956\/files\/Sb82d02f046c047f5a2577648f631688fy.webp?v=1771502779","url":"https:\/\/robotbuilder.co\/products\/mfrc-522-rc-522-rc522-antenna-rfid-ic-wireless-module-for-arduino-ic-key-spi-writer-reader-ic-card-proximity-module","provider":"Electronics","version":"1.0","type":"link"}