在C51单片机上使用的1602LCD驱动程序，

使用ISD4004语音芯片与单片机连接，设计的一个任意录音或放音8―16分钟的模块，注解详细。-Use ISD4004 voice chip microcontroller, design an arbitrary recording or playback 8-16 minute modules, detailed annotations.

绝对好用的I2C和USBSWITCHTO232 绝对好用的I2C和USBSWITCHTO232-absolutely handy USBSWITCHTO232 I2C and the absolute ease of use of I2C and USBS WITCHTO232 absolutely handy I2C and USBSWITCHTO232

实验学习型电子钟包括红外线控制密码da控制led亮度ad转换语音转换闹铃-Experimental study electronic bell, including infra-red control password da control led brightness ad-speech converter alarm

这是一个很好的学习工程，对于初学都是一个难得的好资料，完整！-This is a good learning project for the beginner is a rare good information, complete!

DIY红外遥控家电，遥控家电的电源开关。方便实用。-DIY infrared remote control home appliances, home appliances remote control power switch. Convenient and practical.

4对于进入密码锁的钥匙，假设复位后8个LED全亮，并使用sw1、sw2两个，然后sw2-> sw1-> sw1-> sw2，则表示解锁右侧会导致8个LED全暗。

单片机矩阵键盘扫描程序，已经做成了头文件，非常好用-MCU matrix keyboard scanning process, has made a header file, very easy to use

单片机课程设计程序，利用单片机模块实现键盘扫描输入输出显示-SCM curriculum design process, the use of MCU module for the keyboard scan input and output display

这是一个实现串口通讯,发送与接收的源程序。用最简单的方法进行串口调试-This is a Serial communication, send and receive the source code. The simplest way to use serial port for debugging

本书详细介绍了KEIL C51编译器的使用，是学习单片机的好书。-The book detailed the KEIL C51 compiler use, is to learn from books SCM.