A kind of intelligent access control system based on STM32 microcontroller unit

In recent years, with the construction and development of computer technology, sensing technology, identification technology and 5G network in our society, Microcontroller Unit (MCU) technology has entered a rapid development stage, constantly changing the production and lifestyle of our society. On this basis, production and lifestyle are constantly developing towards comfort and intelligence, which has become a social trend. Based on this background, an access control system with single-chip microcomputer as the core of the system is designed. The core component of this access control system is STM32f103vet6 single chip microcomputer, which uses human infrared, touch screen, steering gear, RFID and other sensors and modules to realize the functions of password, IC card identification and fingerprint identification. And alarm function of buzzer and LED lamp; The opening and closing function of the door lock. On this basis, a voice broadcast function is developed, which can automatically broadcast the reserved information of visitors. At the same time, WeChat applet is developed for remote access.