display driver chip HT1621 the bottom procedures C51

单片机扩展是单片机应用的重要部分，文档主要介绍单片机的片外扩展。-extantion of msc51

自已编写的一个用于调试单片机串口的一个下位机程序。很实用的。-own prepared by a serial port for debugging MCU of a crew under the procedure. Very practical.

MEGA16 驱动开发板上的继电器,按不同的独立键，交替改变继电器开关状态-mega16 drive PWM

节能时控器，根据每日供电波峰，波谷，定时用电。节能，降低用电成本。C51-AT89C2051 程序-When energy-saving controller, according to the daily electricity peak, trough, regular electricity. Energy saving, reducing electricity costs. C51-AT89C2051 procedures

一个UART串行通讯程序，是用C语言写的，内含头文件和主程序-A UART serial communication procedures, is written in C language, contains header files and the main program

本文件代码的开发环境是keil C，芯片是AT89S52，这是一个如何使用DS18B20温度传感器的例子，从中可以学习如何利用I2C以DS18B20通信。-This document is a code development environment keil C, chip AT89S52, this is a how to use the example of DS18B20 temperature sensor, which can learn how to use I2C to DS18B20 communications.

320*240点阵液晶模块驱动程序,控制芯片为SED1335；128*64点阵液晶体驱动程序，控制芯片为ks0108.-320* 240 dot matrix LCD driver, controller chips for SED1335; 128* 64 dot-matrix LCD driver, controller chips for ks0108.

LCD12864驱动开发，在KeilC51中非常有用

51单片机及其C语言程序开发实例第7章节-51 SCM and its C language program to develop examples of section 7 of chapter

单片机C51串口中断接收和发送测试例程（含通信协议的实现）-C51 single-chip serial port receive and transmit interrupt routine test (including the realization of communication protocols)