使用AT89C52驱动LED点阵，包涵源程序及PROTUES制作的原理图，内容完整,AT89C52-driven use of LED dot matrix, includes source code and schematics PROTUES production, content integrity

基于AT89C52温湿度监控系统源代码，已经调试过，绝对可用-AT89C52 Based Temperature and humidity control system source code, has been commissioning, absolutely free

基于AT89C52单片机的八路抢答器控制程序源代码和proteus仿真源文件，采用keil做开发环境-Based on AT89C52 eight Responder control program source code and proteus simulation source files using keil do development environment