AVR单片机解码普通PC键盘码值，解码后通过串口发送到电脑上显示...

按摩椅软件开发示例,VB-PIC单片机通讯题,主要是串口通讯问题-massage chairs software development practices, VB- PIC communications problems, the main problem is the serial communication

这篇文章发表在《单片机与嵌入式系统应用》2005年第三期，我已经和彭先生联系上了！他会回答大家的问题的 2002年初，笔者着手写一个IC卡预付费电表的工作程序，该电表使用Philips公司的8位51扩展型单片机87LPC764，要求实现很多功能，包括熄显示、负荷计算与控制、指示闪烁以及电表各种参数的查询等，总之，要使用时间的单元很多。笔者当时使用ASM51完成了这个程序的编写，完成后的程序量是2KB多一点。后来，由于种种原因，这个程序并没有真正使用，只是作了一些改动之后用在一个老化设备上进行计时与负荷计算。约一年后，笔者又重新改写了这些代码。

51单片机控制AD9851产生20HZ-1MHZ的正弦波，并且实现了按不同步进频率扫屏-51 single-chip AD9851 produced control 20HZ-1MHZ the sine wave, and realize a different step frequency sweep screen

arm的spi功能，通过595点亮数码管-arm of the spi feature 595 digital tube light

There are many different (and often confusing) terms associated with clock-based devices. This application note attempts to clarify these terms, and hence serves as a comprehensive reference on clock terminology. This application note can be divided into two sections. The first section describes and distinguishes between various clock sources available today. The second section defines and distinguishes between various parameters used to describe clocks. This section also provides methods of measuring some of these parameters.

基于单片机定时器的数字钟-动态扫描. C元码-hongwaiyuanmachenxu

介绍顺德地区小家电电路设计的主要特点,为PPT格式，对大家了解小家电产品的电路开发有一定的帮助-Introduction of small household electrical appliances in Shunde the main features of circuit design, in order to PPT format, to all of us to understand the development of small household electrical appliances in the circuit is certainly helpful

时钟心片 DS1302的控制原码程序，C语言的版本-Heart DS1302 clock chip control procedures for the original code, C language version

两个DB18B20来显示温度，在ＫＥＩＬＣ下编译调试成功-Two DB18B20 to display temperature, in the debug compile successfully under KEILC

用ATmega16实现的多功能带音乐闹铃（老鼠爱大米）的数字时钟，有3个功能键设置。具体功能为：秒表计时，闹铃音乐，时钟，校时设置。可以学习状态机的编程思想。-ATmega16 achieve with the music with multi-function alarm (Lao Shu Ai Da Mi) digital clock, There are three function keys installed. Specific functions : stopwatch time, the alarm music, the clock, setting up schools. State machine learning programming ideas.