STM32-Based Bluetooth-Controlled Smart Car: Tracking and Obstacle Avoidance for 'Last Twenty Meters' Delivery

This paper introduces the design and implementation of an intelligent tracking car based on STM32 micro-controller, aiming to provide a low-cost and efficient solution to deal with the challenge of "last twenty meters" distribution in the logistics industry. The system integrates a variety of sensors to realize autonomous movement in complex environment, with intelligent obstacle avoidance, tracking and Bluetooth control functions. By optimizing the hardware cost and simplifying the design, the project has demonstrated significant application value in the field of intelligent logistics, especially the practical application potential in short-distance automatic distribution.