The PN532 to CH340 Serial NFC Module is a compact and easy‑to‑use NFC communication board designed for 13.56 MHz RFID applications. It integrates the NXP PN532 NFC controller with a CH340 USB‑to‑serial interface, enabling seamless communication with PCs, microcontrollers, and embedded systems. The module supports MIFARE Classic, ISO/IEC 14443 Type A/B, and various NFC functions including reading, writing, and card emulation, making it ideal for access control, smart devices, and IoT projects. Features Built‑in NXP PN532 NFC controller CH340 USB‑to‑Serial interface for plug‑and‑play communication Supports 13.56 MHz NFC/RFID protocols Compatible with MIFARE, ISO14443A/B, and NFC tag operations Stable signal performance with low interference Available in Red board / Blue board / Serial‑conversion version Suitable for PC, Arduino, ESP32, STM32, Raspberry Pi, and other MCU platforms Ideal for NFC learning, prototyping, and product integration Specifications Parameter Details Model PN532 NFC Module NFC Controller NXP PN532 Interface CH340 USB‑to‑Serial Frequency 13.56 MHz Supported Cards MIFARE Classic, ISO14443A/B Functions Read / Write / NFC communication Application Scenarios NFC learning and development Access control and identity authentication Smart locks and security systems IoT device NFC integration Contactless payment simulation and prototyping RFID card reading/writing Embedded electronics and DIY projects Packing List