Design of Smart Bracelet Based on STM32 MCU

With the enhancement of living standards, individuals are placing a growing emphasis on health and are increasingly interested in gaining a comprehensive understanding of their physical and mental well-being. This thesis presents the design of a multifunctional smart bracelet that integrates step counting, heart rate monitoring, temperature detection, and time display. The bracelet is equipped with features such as sports step counting statistics, health monitoring, and wireless Bluetooth communication. Initially, an accelerometer is utilized to achieve precise step counting, while a heart rate sensor collects heart rate data in real time. A temperature sensor monitors the ambient temperature, and a clock module provides accurate timekeeping. All information is intuitively displayed on an OLED screen, facilitating users to readily access their health status information at any given moment. By establishing thresholds for health indices, the bracelet’s buzzer is employed for early warning and alert notifications. This design effectively addresses the limitations of traditional bracelets, including their singular functionality, high cost, and excessive power consumption. It is highly practical, user-friendly, and offers a novel approach to the advancement of intelligent technology.