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单片机Com端口仿真，有程序及仿真原理图-Com-port single-chip simulation, there are procedures and simulation schematic

单片机和GPRS通信模块的开发思路，详细描述了GPRS组网过程。

好多51的程序，还有串口发送短信的程序。-many procedures, sending messages Serial procedures.

新华龙020 的内置spi0。驱动16位精度dac8831的程序，采用单端方式输出正弦波-Hualong 020 new built-spi0. Dac8831 drive 16-bit accuracy of the procedures, the use of single-ended sine wave output

使用汇编语言的89C2051LED显示程序源码-The use of assembly language source 89C2051LED display program

这是“led广告屏”程序，已经成功调试，希望对大家有用，谢谢！（最好配合51单片机和伟福编译器）-"led advertising screen" program has been successfully tested and we hope to useful, thank you! (Preferably with 51-fu SCM and compiler)

伽马辐射检测仪 -Gamma radiation detector

picc单片机学习资料，内附13个文件例程，和c语言和asm语言的全部板载例程，对新手和进阶和后期开发都有很好的帮助。-picc MCU learning materials, included 13 documents routines, and the c language and language of all the onboard asm routines for novice and advanced and post-development has a very good help.

电子指南针与单片机通信-electronic compass and SCM Communications

经过测试成功的PDIUSBD12与Mega8的连接代码，如有需要，可以下载，从PDISUBD12与S51单片机连接代码修改而来-PDIUSBD12 tested success Mega8 connection with the code, if necessary, can be downloaded from PDISUBD12 connection with the S51 code changes from single-chip microcomputer