本项目用AT89S52单片机的P1，P0口分别控制8个跑马灯，而P3与LED数码管相连，音乐采用蜂鸣器接P2.6输出，P2.1接模式切换按键，P2.4和P2.5分别接跑马灯加速和减速按键，在音乐播放时加速和减速按键可以控制音乐的切换。压缩文件中的仿真文件可用Proteus查看。-The project with the AT89S52 microcontroller P1, P0 port control 8 Marquee, respectively, while the P3 with the LED digital tube connected to music, use buzzer then P2.6 output, P2.1 access mode switching button, P2.4, and P2. 5 respectively, then Marquee button acceleration and deceleration, in the music playback buttons to control the acceleration and deceleration switch music. Compressed file in the simulation files are available Proteus view.