{"product_id":"mfrc522-rfid-reader-module-kit-key-card-key-ring","title":"MFRC522 RFID Reader Module Kit — 13.56MHz with Key Card \u0026 Key Ring","description":"\u003ch2\u003eMFRC522 RFID Reader Module Kit — 13.56MHz with Key Card \u0026amp; Key Ring\u003c\/h2\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eMFRC522 RFID reader module kit\u003c\/strong\u003e is the most popular RFID solution for Arduino projects. Based on the \u003cstrong\u003eNXP MFRC522\u003c\/strong\u003e contactless card reader IC, it reads and writes \u003cstrong\u003e13.56MHz MIFARE RFID cards and tags\u003c\/strong\u003e via SPI. The kit includes the \u003cstrong\u003eMFRC522 reader module\u003c\/strong\u003e, a \u003cstrong\u003eMIFARE 1K key card\u003c\/strong\u003e, and a \u003cstrong\u003eMIFARE 1K key ring tag\u003c\/strong\u003e — everything needed to build an RFID access control, attendance, or identification system with Arduino.\u003c\/p\u003e\n\n\u003ch3\u003eKit Contents\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMFRC522 RFID reader module\u003c\/strong\u003e — 13.56MHz, SPI interface\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMIFARE 1K key card\u003c\/strong\u003e — 1KB EEPROM, 13.56MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMIFARE 1K key ring tag\u003c\/strong\u003e — 1KB EEPROM, 13.56MHz\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eKey Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIC: \u003cstrong\u003eNXP MFRC522\u003c\/strong\u003e | Frequency: \u003cstrong\u003e13.56MHz\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eSupported cards: \u003cstrong\u003eMIFARE 1K, 4K, Ultralight, DESFire\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eInterface: \u003cstrong\u003eSPI (up to 10Mbps)\u003c\/strong\u003e | Supply: \u003cstrong\u003e3.3V\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eRead range: \u003cstrong\u003eup to 5cm\u003c\/strong\u003e | Card memory: \u003cstrong\u003e1KB EEPROM (16 sectors)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eLibrary: \u003cstrong\u003eMFRC522 Arduino library\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCompliance: \u003cstrong\u003eRoHS compliant\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy Choose This?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eComplete kit\u003c\/strong\u003e — reader + key card + key ring, ready to use immediately\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eMFRC522 Arduino library\u003c\/strong\u003e — read\/write RFID cards in minutes with example sketches\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e1KB EEPROM per card\u003c\/strong\u003e — store user ID, access level, and custom data\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eSPI interface\u003c\/strong\u003e — fast, reliable communication with Arduino\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e3.3V operation\u003c\/strong\u003e — compatible with Arduino (via level shifter) and ESP32\/Raspberry Pi\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eArduino RFID door access control system\u003c\/li\u003e\n\u003cli\u003eEmployee and student attendance tracking\u003c\/li\u003e\n\u003cli\u003eRFID-based inventory and asset tracking\u003c\/li\u003e\n\u003cli\u003eContactless payment and loyalty card simulation\u003c\/li\u003e\n\u003cli\u003eRFID-triggered automation and smart home projects\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Keszoox","offers":[{"title":"Default Title","offer_id":45672296349931,"sku":"","price":12.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/1005\/8731\/files\/RC522-RFID-Reader-Card-and-Keychain-1.jpg?v=1723008932","url":"https:\/\/keszoox.com\/products\/mfrc522-rfid-reader-module-kit-key-card-key-ring","provider":"Keszoox","version":"1.0","type":"link"}