The STMicroelectronics ST25R3911B-DISCO is a Discovery kit designed to help developers evaluate the ST25R3911B high-performance HF reader and NFC initiator. This robust kit is built around an STM32L4 microcontroller and features an integrated, pre-etched antenna that supports Very High Bit Rate (VHBR) communication. It includes advanced features such as low-power capacitive and inductive wake-up for detecting cards and Automatic Antenna Tuning (AAT) for stable performance near metallic objects, making it an excellent platform for prototyping and developing RFID reader applications.