ad转换，将模拟信号量转换成数字信号量

两线制电流 温湿度变送器原理图，MSP1221的PWM和XTR115-Two-wire current temperature and humidity transmitter schematic, MSP1221 the PWM and XTR115

这个是液晶模块1602A用于单片机AT89S52的C语言驱动头文件.这个头文件不是普通的头文件，笔者在其中加进了很多自己的东西。而且经过自己的实际验证是可以用的。 　　有了该文件，你可以不用看1602的DATASHEET就会使用。-This is a LCD module 1602A for the single-chip AT89S52 the C language driver header file. This header file is not an ordinary header files, in which the author added a lot of our own things. But after their own actual authentication can be used. With the file, you can not watch the 1602 will be used DATASHEET.

这是一个有关于MCS51单片机的全部指令。不错的。是我总结的。

TI MSP430 ICC编译器,内带序列号生成器-TI MSP430 ICC compiler, with serial numbers within the generator

RC531，mifare卡的接收芯片，实现非接触卡的应用-RC531, mifare card receiver chip, to achieve non-contact card application

一些有关c51的小程序，编译已经通过，希望对大家有用-C51 some small procedures, the compiler has passed, everyone would like to be useful

多用途仪的温度控制，及与富士温控仪通讯。-Multi-purpose instrument for temperature control, and communications with the Fuji temperature controller.

在做项目（工程）的时候，我们经常要用到比较多的按键，而且IO 资源紧张， 于是我们就想方设法地在别的模块中节省IO 口，好不容易挤出一两个IO 口，却 发现仍然不够用，实在没办法了就添加一个IC 来扫键。一个IC 虽然价格不高， 但对于大批量生产而且产品利润低的厂家来说，这是一笔不菲的开支! 那，我们能不能想到比较好的扫键方法：用最少的IO 口，扫最多的键？可以吗？-Doing the project (engineering), we often use the relatively large number of keys, and the IO resource constraints, so we are trying to save in another module IO ports, finally out of one or two IO ports, only to find is still not enough there is really no other way to add an IC to sweep on the keys. Although the price of an IC is not high, but low profits, high-volume production and product manufacturers, this is spending a lot of money! That, we can not think of a better scan key method: with a minimum of IO ports, scan Most of the keys? OK?

实现stc12c5410ad/stc12c2051单片机ad转换和pwm功能-Single-chip implementation stc12c5410ad/stc12c2051 function ad conversion and pwm

一个在89c52单片机上实现的多路温度采集通信程序-A 89c52 single-chip to achieve the multi-channel temperature acquisition Communication Program