基于MSC51单片机的交通灯控制系统设计与实现：毕业论文总结

With the rapid development of technology in recent years, the application of single-chip microcontrollers is becoming more and more extensive, driving the continuous updating of traditional control and detection technologies. In real-time detection and automatic control systems based on single-chip microcontrollers, the microcontroller is often used as a core component. However, knowledge of the single-chip microcontroller alone is not enough; it is also necessary to optimize it according to the specific hardware structure and combine software and hardware effectively. At a crossroads where vehicles shuttle back and forth and pedestrians flow, with cars in lanes and people on sidewalks, everything runs smoothly. What maintains this orderly system? It is the automatic traffic signal control system. There are many ways to control traffic signal lights. This system adopts the MSC-51 series single-chip microcontroller ATSC51 and the programmable parallel I/O interface chip 80C51 as the central devices to design a traffic light controller. This system achieves the function of setting the lighting time for red and green lights according to the actual traffic flow through the P1 port of the 8051 chip, with red and green lights cycling and a warning flash of the yellow light when there are seconds left in the countdown. This system is practical, easy to operate, and has strong expandability. Keywords: Traffic lights, single-chip microcontroller, MSC-51, timing.