485 are way communication. Through 485 to control a group of light switches.

这是对51单片机RAM的扩展的程序 内有电路图，非常详细的注释-This is the 51 SCM RAM expansion procedures within the circuit diagram, the very detailed Notes

HT1622 单片机驱动 LCD显示驱动新片的单片机控制方法-HT1622 LCD display driver in new MCU control method

利用中文字型点矩阵控制器ST7290编写的清屏,移动光标等函数-The use of Chinese fonts dot matrix controller ST7290 clearance preparation screen, move the cursor and other functions

单片机测温度c程序,温度传感器为DS1624-C Single-chip temperature measurement procedures for the DS1624 temperature sensor

这是关于DS18B20的读写程序,数据脚P2.2,晶振12MHZ 温度传感器18B20汇编程序,采用器件默认的12位转化,最大转化时间750微秒 显示温度00到99度,很准确哦~~无需校正!-DS18B20 on literacy, data P2.2 feet, 12MHZ crystal temperature sensor 18B20 assembler, using the default device into 12, the largest 750 microsecond conversion time show that the temperature from 00 to 99 degrees, very accurate ~ ~ Oh, no correction!

单片机读写TDA8007，比较简单，可做参考。-Read and write single-chip TDA8007, relatively simple, can refer to.

一个M1读卡器的驱动程序，基于51单片机-an M1 reader of the driver, based on 51 MCU

顶尖电子称PS-15E电子称传称设置，一个很好的演示操作文档-Top E-called PS-15E electronic Chuan said that setting, a good demonstration of operation of the document

普通有刷直流电机PWM闭环控制C51完整源程序-Brush DC Motor has ordinary PWM closed-loop control C51 complete source

C8051F系列单片机配置软件ConfigAndConfig2Install，也就是专家系统，很不错！-C8051F series microcontrollers configuration software ConfigAndConfig2Install, that is, expert systems, very good!