说明：  基于51单片机的循迹避障遥控智能小车原创技术报告。包括原创代码，增强型最小系统pcb等内容。实现循迹、避障、无线遥控等三个功能。
(Original technical report of tracking and obstacle avoidance remote control smart car based on 51 single chip microcomputer. Including original code, enhanced minimum system pcb and so on. The three functions of tracking, obstacle avoidance and wireless remote control are realized.)