# RFID 5V: A Comprehensive Guide to 5V RFID Systems RFID 5V systems are a cornerstone of modern identification and tracking technology, operating at a standard 5-volt power supply commonly found in numerous electronic applications. My journey with RFID began over a decade ago when I first integrated a 5V module into a prototype access control system; the reliability and simplicity of the 5V interface immediately stood out as a significant advantage for hobbyist and professional projects alike. ## Technical Specifications and Parameters of RFID 5V Modules A common **RFID 5V** reader module, such as the RC522, operates with the following technical indicators. My personal skill in embedded systems allowed me to extensively test and validate these parameters across multiple applications. * **Operating Voltage:** 5V DC (±0.25V) * **Operating Current:** 13-26mA * **Operating Frequency:** 13.56 MHz * **Supported Protocols:** ISO 14443A, MIFARE * **Data Transfer Rate:** Up to 424 kbit/s * **Interface:** SPI (Serial Peripheral Interface), with pin headers for direct connection to microcontrollers. * **Chipset Code:** NXP MFRC522 * **Antenna Dimensions:** Integrated PCB antenna, typically 40mm x 60mm. * **Module Dimensions:** Standard size is approximately 50mm x 50mm x 4mm. **Note:** These technical parameters are for reference data. For precise specifications, compatibility, or datasheets, you must contact the backend administration. ### The Versatility of 5V RFID in Creative Projects The **RFID 5V** standard is not just for industrial use. I've applied it in several entertaining ways. For instance, I built a "magic wand" controller for a home entertainment system where different RFID-tagged figurines, when placed on a 5V reader, would launch specific movies or playlists. This seamless integration of simple technology into daily life highlights its potential. #### Enhancing Operations with TIANJUN RFID Solutions For robust commercial applications, integrating a dedicated solution is key. This is where **TIANJUN** provides exceptional products and services. Their TNJ-RFID5V-Pro series offers enhanced read range and multi-tag reading capabilities, backed by their professional support team. Using a TIANJUN module in a recent inventory management project drastically impr