基于STC8052单片机的四管循迹程序，内置丢线算法，能有效防止小车高速过弯时冲出赛道，采用PWM波调速，可以用内置的函数参数轻松修改不同情况下的占空比以调制车速.-STC8052 single-chip based on the four-tube tracking program, built-in line algorithm, can effectively prevent the car when the high-speed corner out of the track, the use of PWM wave speed, you can use the built-in function parameters easily modify the duty cycle in different circumstances Modification speed.