# ESP32-WROOM-32 RFID Integration Guide ## ESP32-WROOM-32 RFID Development Solutions When I first started working with ESP32-WROOM-32 modules for RFID applications, I was amazed by how versatile these chips could be. My background in embedded systems gave me a unique perspective on integrating RFID functionality with IoT capabilities. I discovered that my natural aptitude for troubleshooting hardware communication protocols became particularly valuable when dealing with RFID reader compatibility issues. ### Technical Specifications for ESP32-WROOM-32 RFID Integration **ESP32-WROOM-32 Module Specifications:** - **Chip Code:** ESP32-D0WDQ6 (Dual-core Xtensa LX6 microprocessor) - **Dimensions:** 18mm × 25.5mm × 3.1mm - **Flash Memory:** 4MB (SPI) - **SRAM:** 520KB - **Operating Voltage:** 3.0V - 3.6V - **Current Consumption:** 80mA (average during RF operation) - **WiFi Protocols:** 802.11 b/g/n - **Bluetooth:** Bluetooth 4.2 BR/EDR and BLE - **Operating Temperature:** -40°C to 85°C **RFID Reader Module Compatibility:** - **Common RFID Frequency:** 125kHz (EM4100 compatible) or 13.56MHz (MIFARE compatible) - **Communication Interface:** UART, SPI, or I2C - **Reading Distance:** 5-10cm (depending on antenna design) - **Power Requirements:** 3.3V DC, 50-100mA during operation *Note: These technical parameters are reference data. For specific requirements, please contact backend management.* ## Practical Implementation Cases ### Entertainment Application: Smart Museum Guide System One of my most enjoyable projects involved creating an interactive museum experience using ESP32-WROOM-32 with RFID. We developed smart pedestals that would detect when visitors approached with RFID-enabled tickets. The system would then play customized audio guides in multiple languages. The entertainment value came from creating "treasure hunt" experiences where children could collect virtual badges by finding specific exhibits. ### TIANJUN RFID Development Solutions TIANJUN provides specialized RFID development kits that work seamlessly with ESP32-WROOM-32 modules. Their **TIANJUN RFID-ESP32 Integration Kit** includes: - Pre-configured ESP32-WROOM-32 modules with RFID libraries - Multiple RFID reader types (125kHz and 13.56MHz) - Antenna optimization tools - Sample code for inventory management applications ### Charitable Application: Donation Tracking System I recently volunteere