脉冲宽度的测量，利用1602液晶显示，和4*4键盘输入，AT89C52单片机控制，实现对长脉冲宽度的测量...

sd卡的读写程序，可以供需要研究sd卡应用项目的朋友参考。-sd card reader program, you may need to study the sd card applications for the project a friend for reference.

基于AVR单片机mega8的电表的C程序（第三部分，接收数据分析并回答）-Based on the AVR Microcontroller mega8 meter C-program (Part III, to receive data analysis and answers)

此文档是单片机控制的家用饮料快速冷热保温机。。。 -This document is a single-chip microcomputer controlled domestic hot and cold beverages fast machine insulation. . .

RS-485接口具有较强的抗干扰性，数据传输的距离较远，在一些应用中常常需要把RS-232标准的信号转换为RS-485的标准信号进传输。图中所示电路允许数据在RS-232/RS-485这两个不兼容的串行数据接口间传递。传输速度为480波特时，传输距离可达1750米。图中双RS-232收发器IC1将主机(PC)输出的RS-232电平转换为TTL电平，驱动高速RS-485收发器IC2 的输入，倒相器使IC2、IC3在受到起始位时被激活。-RS-485 trying to lay all the thoroughly bleed at the nose picking up the birthday 扰 fern cavity 强 ， Chu Huai basin cavity beat escapement for the birthday candle远Now ， Which instance, using Beckmannia中

简单的单片机LED，用串口调试来实现其LED的显示。数码管的显示-Simple single-chip LED, using serial debugging to achieve its LED display. Digital tube display

利用单片机控制的8255键盘控制实验汇编成序-MCU 8255 using the keyboard to control the experimental sequence was compiled

电源控制器的单片机汇编程序和VB源程序，主要功能是通过电脑程序控制单片机实现电源的控制。-Single-chip power controller for the compilation of procedures and VB source code, the main function is to control single-chip computer control to achieve power.

笔段式lcd显示子程序，c语言编写-T-piece lcd display

低电压检测. A口低8位接键盘列线，键盘行线接VDDIO；B口高8位接LED // 按K1键 低电压为2.4v // 按K2键 低电压2.8v // 按K3键 低电压3.2v // 按K4键 低电压为3.6v

其他人需帐号就可下载此源码液晶显示12864-Take account of other people can download this source LCD 12864