a project about C51

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

编译环境是KEIL,仿真环境是PROTEUS,控制彩灯的闪烁，利用51单片机，内含Keil C51教程可以使大，家了解彩灯的设计同时学习KEIL。-Compiler environment is KEIL, simulation environment is PROTEUS, control of the flashing lantern, using 51 single-chip, including Keil C51 Guide can enable the home to understand the design of lanterns at the same time learning KEIL.

单片机下的ADC0809驱动程序-the ADC0809 SCM Driver

袖珍型电子日历及8路长时间定时控制器程序-Mini electronic calendar and 8-way long timing controller program

Using 16f876 & matrix led to show time.

USART以查询方式收发数据，接收发自电脑的数据，将其显示在LED上，并将接到到的数据减1后返回电脑-USART to send and receive data to query, receive from the bottom of the computer data that could be displayed in the LED, and will receive the data returned by a computer

MCS-51系列单片机实例详解和案例代码，代码都是基于C语言-MCS-51 series single-chip Detailed examples and case code, the code are based on C language

用于把上位机的数据，文字编码发送到下位机，用于实事或以不现实-Used to host computer data, text encoding to send to the next-bit machine for practical or impractical

STC单片机AD的实现加8位595串行数码管显示-STC Single-chip realization of AD plus 8 595 serial digital tube display

c51 是经典的单片机，简单，精通51单片机，在学习其他的单片机 很易上手-C51 is a classic single-chip, simple, fluent in 51 single-chip, single-chip microcomputer in the learning of other very易上手