This development board is based on the STC15F204EA microcontroller and is designed to support wireless communication via the NRF905 wireless module. It is a versatile board with various useful features, including UART communication, a voltage regulator for different power levels, and all I/O pins exposed for easy access during development.

This control board is designed to work with the HC-SR04 ultrasonic distance sensor and provides a convenient way to measure and display distances. It uses an onboard STM8S103 high-performance microprocessor to handle the distance measurement, and it supports both digital tube display and serial port output for flexibility in presenting the data.

This module is well-suited for RFID-based projects involving NFC communication and is compatible with a wide range of MIFARE card types. Let me know if you need implementation examples or additional details!

This 13.56MHz RFID card operates using contactless transmission for both data transfer and power, requiring no battery. It is designed for various applications where quick, secure, and efficient data transmission is required, with a focus on ease of integration and long-term reliability.