PTR8000发送接收驱动程序。只需在主程序中只需做小小的改动就可以，使用这个模块！！！...

利用pic单片机的定时计数器测量汽车轮速，并利用串口将数据发送出去。-Using pic microcontroller timing counter measure vehicle wheel speed, and the use of serial data sent.

专供电子爱好者阅读，或者参加各类电子设计比赛用！-Specifically for reading electronic enthusiasts, or participate in various types of electronic design racing!

51单片机硬盘控制电路以及原程序Demo，可用于CF卡等-51 microcontroller drives control circuit and the original procedure Demo can be used CF card

51的C语言教程，对各位初学51的新人来说，是一本很好的指导教材。-51 C language classes, beginner to you and the 51 newcomers, it is a very good guidance materials.

时钟芯片ds12c887读写程序.rar 小程序,请大家参考参考.

单片机控制的双路有源滤波器设计。有用的朋友请下载-Single-chip dual-controlled active filter design. Friend please download useful

ps2键盘的命令集，编写键盘驱动时有用。EDH:置位/复位 LED 指示器。键盘右上角有三个 LED 指示器,分别反映 Caps、Num 和 Scroll 三个键的 锁定情况。参数字节如表 2 所列。 -ps2 keyboard command set, the preparation of useful keyboard-driven. EDH: Set/reset LED indicator. The upper right corner of the keyboard has three LED indicators, respectively, reflecting the Caps, Num and Scroll Lock keys in three cases. Parameter bytes as listed in Table 2.

AVR单片机入门及C语言高效设计实践（四） ATMEAG16L的I／O端口特点及使用 ATMEAG16L单片机有32个通用I／O口，分为PA、PB、PC和PD四组，每组都是8位。这些I／O口都可以通过各自的端口寄存器设置成输入和输出（即作为普通端口使用），有些I／O口还具有第二功能（我们在后面使用到这些第二功能时再介绍）。-AVR C language portal and efficient design practice (4) ATMEAG16L the I/O Ports characteristics and use of a microcontroller ATMEAG16L 32 common I/O mouth into PA, PB, PC and PD four groups, each group are eight. These I/O I can through their respective ports Register set to input and output (that is, use as a general port), Some I/O I also have the second function (in the back of the use of these second function tell).

TCP/IP for mcu8051

IC卡读写程序,内有终端PCB及原理图.爱好者可以看一下.也许会有所帮助.-IC card reading and writing process, there are terminal PCB and schematic. Lovers can look at. Maybe be helpful.