[EOL] Mini RFID Reader/Writer Unit (MFRC522)

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Product Status Notice This product is EOL (End of Life). Please order the new version: Unit RFID2 /* ===== Scoped Description Style ===== */ .product-description.rte { font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif; color: #2c2c2c; line-height: 1.65; font-size: 16px; } /* ===== Headings ===== */ .product-description.rte h2 { font-size: 1.8em; color: #0D47A1; border-left: 4px solid #1f6fe5; padding-left: 12px; margin-top: 32px; margin-bottom: 16px; } /* ===== H3 Titles Optimization ===== */ .product-description.rte h3 { font-size: 1.4em; color: #0D47A1; margin-top: 24px; margin-bottom: 12px; font-weight: 500; padding-bottom: 6px; border-bottom: 2px solid #e6e6e6; } /* ===== Paragraphs ===== */ .product-description.rte p { margin-bottom: 20px; line-height: 1.8; color: #4a4f57; font-size: 16px; } /* ===== Paragraph Images (only in description) ===== */ .product-description.rte img { display: block; max-width: 100%; height: auto; margin: 24px auto; border-radius: 12px; box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); } /* ===== Lists ===== */ .product-description.rte ul { padding-left: 20px; margin-bottom: 16px; list-style-type: disc; } .product-description.rte li { margin-bottom: 6px; } /* ===== Links ===== */ .product-description.rte a { color: #0288D1; text-decoration: none; transition: color 0.3s ease; } .product-description.rte a:hover { color: #01579B; } /* ===== M5Stack-style Spec Table ===== */ .product-description.rte .table-container { width: 100%; margin: 24px 0; overflow-x: auto; } .product-description.rte .table-container table { width: 100%; border-collapse: collapse; font-family: inherit; font-size: 14px; color: #2c2f36; background-color: #ffffff; border-radius: 10px; overflow: hidden; box-shadow: 0 4px 12px rgba(0, 0, 0, 0.04); } .product-description.rte .table-container thead th { background: #1f6fe5; color: #ffffff; padding: 14px 16px; text-align: center; font-weight: 600; border: none; vertical-align: middle; } .product-description.rte .table-container td { padding: 14px 16px; border-bottom: 1px solid #e6ebf2; vertical-align: middle; } .product-description.rte .table-container tbody td:first-child { width: 36%; text-align: center; font-weight: 500; color: #4a4f57; background-color: rgba(31, 111, 229, 0.02); } .product-description.rte .table-container tbody tr:nth-child(even) { background-color: #f7f9fc; } @media (hover: hover) { .product-description.rte .table-container tbody tr:hover { background-color: #eef3ff; } } /* ===== Learn & Documents Button ===== */ .product-description.rte #learn-and-documents-btn { display: inline-flex; align-items: center; padding: 6px 14px; background-color: #1f6fe5; color: #ffffff; font-weight: 600; border-radius: 6px; margin-top: 8px; text-decoration: none; transition: background 0.3s ease; } .product-description.rte #learn-and-documents-btn:hover { background-color: #1661c1; } /* ===== Responsive Design for Smaller Screens (with table adjustments) ===== */ @media screen and (max-width: 768px) { .product-description.rte .table-container table, .product-description.rte .table-container thead, .product-description.rte .table-container tbody, .product-description.rte .table-container th, .product-description.rte .table-container td, .product-description.rte .table-container tr { display: block; width: 100%; } .product-description.rte .table-container thead { display: none; } .product-description.rte .table-container tbody tr { padding: 12px 0; border-bottom: 1px solid #e6ebf2; } .product-description.rte .table-container tbody td { padding: 8px 16px; border: none; text-align: left; } .product-description.rte .table-container tbody td:first-child { width: 100%; background: none; color: #1f6fe5; font-weight: 600; padding-top: 16px; } .product-description.rte .table-container tbody td:last-child { padding-bottom: 16px; color: #2c2f36; line-height: 1.6; } /* Ensure button appears correctly on mobile */ .product-description.rte #learn-and-documents-btn { font-size: 14px; padding: 8px 16px; } } Description Unit RFID is a radio frequency identification unit. It is equipped with the MFRC522 chip and operates at a frequency of 13.56MHz. It supports multiple functions such as card reading, card writing, identification, recording, encoding, and authorization of RF cards. Utilizing magnetic field induction technology, it enables non-contact bidirectional information exchange, reading the information from the induction card and verifying it. It can be used in applications such as access control systems, clock-in systems, warehouse inventory management, and vehicle entry and exit registration in residential areas where information verification is required. Features Operating frequency: 13.56 MHz I2C data rate: Fast mode: up to 400 Kbit/s; High-speed mode: up to 3400 Kbit/s RC522 transceiver buffer: 64 bytes Supported protocols: ISO14443A, MIFARE, and NTAG Operating temperature: -20-85℃ Data retention: > 10 years Read/write distance: < 20mm Development platforms: Arduino, UIFlow (Blockly, Python) 2 x LEGO-compatible holes Includes 1 x Unit RFID 1 x HY2.0-4P Grove cable (20cm) Applications Smart home access control systems Vehicle management Intelligent transportation Smart bookshelves Specifications Specification Parameter Protocol I2C @0x28 Product Size 48.0 x 24.0 x 8.0mm Product Weight 6.0g Package Size 67.0 x 53.0 x 12.0mm Gross Weight 21.0g Learn and Documents → DOCUMENTS Show more