利用51单片机来驱动和控制小车智能寻迹，可上坡，走直线曲线转弯等等，触碰到障碍物后会自动转身并发出使蜂鸣器发声，然后继续自动寻迹，一般可用于单片机智能小车寻迹比赛-The use of 51 single-chip smart car to drive and control the tracing can be uphill, walk straight curve turns, etc., will automatically turn around and send the buzzer sound after touching an obstacle and then continue automatic tracing, and can be used in single-chip smart car tracing game.