<h1>RFID 8266: A Comprehensive Guide to Integration and Application</h1> <p><strong>RFID 8266</strong> represents a powerful combination of Radio-Frequency Identification (RFID) technology with the versatile ESP8266 Wi-Fi microcontroller. In my experience working on IoT prototypes, merging these two technologies has been one of the most efficient ways to create smart, connected identification systems. My personal skill in embedded systems programming allowed me to quickly prototype a door access system using this very setup. I hold the opinion that for hobbyists and professionals starting with IoT, the RFID 8266 combo offers an unparalleled balance of cost, functionality, and community support.</p> <h2>Technical Specifications and Parameters of RFID 8266 Components</h2> <p>To effectively utilize an <strong>RFID 8266</strong> system, understanding the technical specifications of key components is crucial. Here are detailed parameters for a typical MFRC522-based RFID module paired with an ESP8266.</p> <h3>RFID Reader Module (Example: MFRC522)</h3> <ul> <li><strong>Chip:</strong> NXP MFRC522</li> <li><strong>Operating Frequency:</strong> 13.56 MHz</li> <li><strong>Communication Interface:</strong> SPI, I2C, UART</li> <li><strong>Operating Voltage:</strong> 2.5V to 3.3V</li> <li><strong>Current Consumption:</strong> 13-26mA</li> <li><strong>Read Range:</strong> Approx. 10-50mm (depends on antenna design)</li> <li><strong>Supported Card Types:</strong> Mifare S50, Mifare S70, Mifare UltraLight, Mifare Pro, Mifare Desfire</li> </ul> <h3>ESP8266 Microcontroller (Example: NodeMCU Dev Kit)</h3> <ul> <li><strong>Core Chip:</strong> Espressif ESP8266 (Model: ESP-12E/F)</li> <li><strong>Wi-Fi Standard:</strong> 802.11 b/g/n</li> <li><strong>CPU:</strong> Tensilica L106 32-bit RISC, 80-160 MHz</li> <li><strong>Memory:</strong> 128 KB RAM, 4 MB Flash (typical)</li> <li><strong>GPIO Pins:</strong> 17 (multiplexed)</li> <li><strong>Dimensions (NodeMCU board):</strong> Approx. 49mm x 26mm</li> </ul> <p><em>Note: These technical parameters are for reference data. For precise specifications, compatibility, or datasheets for your specific project, you must contact the backend management.</em></p> <h2>Entertaining and Practical Application Cases</h2> <p>The <strong>RFID 8266</strong> setup shines in creative projects. A fun, entertainment application I built was a "Smart Toy Box" for m