基于51的寻迹小车，本课题的内容是基于单片机的多功能智能小车设计，由于STC89C52具有良好的易用性，功能比较全面，又相对廉价，所以采用STC89C52这款单片机来作为整个系统的控制核心芯片。同时还采用L293D作为电机的驱动芯片，以及其他的硬件模块，如HC-SR04超声波探测模块、红外避障模块、电源模块、红外遥控模块等共同构成。软件上采用简单易懂的C语言编程来完成程序代码的编写，从而达到智能小车黑线循迹、红外避障、红外遥控、超声波避障等功能的实现。(Tracing the car based on 51, the content of this topic is based on single chip microcomputer multi-function intelligent car design, because the STC89C52 has good usability, function more comprehensive, and relatively cheap, so the STC89C52 the single chip microcomputer as the control core of the whole system chip. Also using L293D motor as drive chip, as well as other hardware module, such as HC - SR04 ultrasonic detection module, the infrared obstacle avoidance module, power supply module, infrared remote control module. Software using straightforward to complete the program code in the C programming language to write, so as to achieve intelligent car black line tracking, infrared obstacle avoidance, infrared remote control, the realization of the function of ultrasonic obstacle avoidance, etc.)