利用测量频率的方法进行运算 测量速度和里程，并用LED显示

at89c2051制作的超声波测距源程序 范围20cm-10m 精度1cm 如果需要电路图 请与我联系！-AT89C2051 source produced by the scope of ultrasonic rangefinder 20cm-10m accuracy 1cm circuit diagram if you need please contact me!

发送器为NB9148，接受器为通用红外接受模块，软件解码用的单片机为P87LPC762-transmitter for NB9148, infrared receivers to accept GM module, the software decoder microcontroller P87LPC762

avr单片机学习的 希望对大家有用 -avr Singlechip everyone would like to learn useful

此为组态王软件的单片机协议，假如我们想使用自己的模块，就要按照此协议来做下位机的通讯程序，经过我多年的使用，这样是事半功倍，介绍给大家。-This is Singlechip Kingview software agreement, if we are to use their own modules, it is necessary to do under this agreement in accordance with the digital machine communication procedures, after my many years of use, this is a multiplier, introduced to the U.S..

单芯片电子称重方案，包括代码和原理图，文档

凌阳16位单片机SPCE061A datasheet,编程参考-Sunplus 16-bit MCU SPCE061A datasheet, Programming Reference

AT29C040在单片机中的应用不仅能使用户快速地实现所需功能，而且电擦除的方式为程序和数据的存储和更新提供了方便，随着闪速存储器器件朝着容量越来越大、工作电压越来越低、支持共同的接口标准的方向发展，闪速存储器硬件接口和软件设计将越来越容易。 -AT29C040 in MCU that the application enables users to quickly achieve the required functions, but also-- in the form of erasure and data storage and update provides a convenient, as Flash memory devices towards increasing capacity, low voltage increasingly support a common interface standard direction, Flash memory interface hardware and software design will become increasingly vulnerable.

单片机开发1.16x16字点阵（滚动显示2.cdma通信系统中的接入通道部分进行仿真与分析3.LED显示屏动态显示和远程监控的实现4.MCS-51单片机温度控制系统5.usb接口设计-Single-chip dot matrix character development 1.16x16 (Scrolling 2.cdma communication system access channel part of the simulation and analysis of dynamic 3.LED screen display and remote monitoring realize 4.MCS-51 Single-chip temperature control system 5.usb Interface Design

用ATMAGE16写的对AVR进行仿真和下载的程序-ATMAGE16 used to write the AVR for simulation and download procedures

头件的中的#ifndef，这是一个很关键的东西。比如你有两个C文件，这两个C文件都include了同一个头文件。而编译时，这两个C文件要一同编译成一个可运行文件，于是问题来了-The first pieces of# Ifndef, this is a very key things. For example, you have two C file, the two C files include the same file size. And compile-time, the two C files to compile together into a run file, then issue the