"STM32F103C6T6单片机核心智能门禁系统设计与开发"

The intelligent access control system based on the STM32F103C6T6 microcontroller core consists of multiple circuit modules, including the main control chip, power / door lock indicator lights, oscillation circuit, buzzer, buttons, and motor drive. The hardware architecture of the door access system terminal is built using the STM32 controller, combined with power supply, RFID recognition, fingerprint recognition, relay, and other modules. The components used include a stepper motor (with drive module), 4X4 matrix keypad, fingerprint module AS608 (serial control), 0.96-inch OLED display screen (IIC), RFID RC522 RF module (with a card), and the main control chip STM32F103C6T6. The system allows for the management of household members' fingerprint information through the fingerprint module, with the ability to add, delete, search, and modify fingerprints. The success or failure of these operations is displayed on the OLED screen. During the fingerprint matching process, if the collected fingerprint matches the library of the fingerprint module, the OLED displays a successful match and rotates the stepper motor one full revolution. Users can set smart door lock passwords using the keypad. Two passwords (six digits each) can be set, and if either one matches successfully, the door can be unlocked. Password modification is also possible through the keypad, with all operations displayed on the OLED screen. Additionally, the system supports unlocking via RFID and Bluetooth with a mobile phone. Furthermore, the system can be expanded to include features such as virtual password unlocking. The intelligent access control system ensures security and convenience through advanced electronic technology and network communication. It offers high recognition accuracy, ease of operation, simple management, and powerful functions. Suitable for various institutions and residential areas, the system makes a positive contribution to societal security and convenience.