作品基于STC89C52RC单片机的数字式倒车雷达的设计。该系统是以单片机为核心的一种低成本、高精度、微型化，并有数字显示和声音报警功能的倒车雷达系统，该倒车雷达根据超声波测距原理研制，将测得的结果送至数码管显示，同时进行声音报警和一些必要的其它辅助功能。-Works based on single-chip digital STC89C52RC reversing radar design. The system is based on the microcontroller as the c

LED公交路牌显示程序以及仿真软件，对做公交显示屏行业的人来说作用很大。主控芯片的51单片机，以及74HC595.-Bus street LED display program and simulation software, for those bus display industry s role is very big. The main control chip 51 single-chip microcomputer and 74 hc595 are needed.