pid procedures AN964.zip note to explain the procedures in process

独立模块通过到单片机控制，数码管显示。能显示秒，分，时-Independent modules to single-chip microcomputer control, digital tube display. Can show seconds, minutes, hours

介绍了DS1991信息按钮在文章中的应用，对编译中使用的读写程序作了说明。

msp430实现max7219显示程序(汇编)-MSP430 realize MAX7219 display program (compilation)

AT89S52单片机驱动AD9833产生信号，三角、正弦、方波均可。-AT89S52-driven single-chip AD9833 produced signal, triangle, sine, square wave can be.

8051 LED Sample Code

本程序是4×4键盘的mega16采样子程序，本程序参考了它人的设计，现在已经在我的项目中使用，其最大的特点就是硬件简单，调试方便，大家不用动脑筋就搞定它了。-This procedure is a 4 × 4 keyboard mega16 sampling subroutine, the procedure with reference to the design of its people, is now in my project to use, its greatest feature is the hardware is simple, easy debugging, you do not use their brains to get it .

PIC 的资源,睡眠模式和看门狗的设置和使用的C语言样例-Using sleep mode, wakeup on change, and the watchdog timer on baseline PICs

学习单片机最有用的恐怕是编程器和仿真机,一台商品化的编程器至少要几百元,仿真机价格更高,往往让初学者难以选择。这里介绍的一款国外电子网站推出的廉价51编程器，能够读写最常用的12种51单片机，自己动手装配一台，既能锻炼自己的动手能力,又能廉价地装备一台多用编程器，无论是学习单片机或业余时间搞开发，都是一个非常好的选择。笔者按照资料自制了一台，十分好用，不敢独享。特编译了全部制作资料介绍给大家。这个编程器硬件使用标准的TTL系列器件而没有使用特殊元件。它连接在计算机的并行端口，对PC的并口没有特殊要求，所以配置很低的计算机也能用这个编程器。Atmel Flash 系列单片机是当前最流行的单片机，易于擦写，不象OTP芯片容易造成浪费。特别是89系列单片机与大家熟悉的INTEL51系列单片机完全兼容，这个编程器支持的单片机主要是Atmel flash系列。-Single-chip learning is probably the most useful programming and simulation machine, a programmer commercialization of at least several hundred dollars, simulation machine prices higher, so that beginners are often difficult to choose. Here s a foreign site to launch low-cost e-51 programmer can read and write 12 types of most commonly used single-chip microcomputer 51, a do-it-yourself assembly, can exercise their practical ability, but also inexpensive to equip a multi-purpose programmer, whether it is free time to study or engage in the development of single-chip are a very good option. The author made in acc

由4X4组成16个按钮矩阵，设计成16个音。 可随意弹奏想要表达的音乐。 -By the 4X4 matrix composed of 16 buttons, designed to tone 16. Free to play the music you want to express.

用单片机和数码管，构成数字时钟。可以设定时间和闹钟。-MCU and digital control, constitute a digital clock. Can set the time and alarm clock.