此程序是利用51单片机，控制蜂鸣器接口高低电平，让其发出歌声。...

本代码实现了卡式电话的功能,包括长话市话特话,警告,扣费等一系列功能-This code implements the cassette phone features, including special long-distance local call, then, warnings, chargeback and a series of functions

编写pwm程序的时候，肯定有用的程序，自己看一看-Preparation program when the pwm is definitely a useful program, take a look at their own

基于2262的发射模块的驱动程序，使用51单片机。工作效果良好。没有不良反应-Based on the 2262 launch of the driver module, the use of single-chip microcomputer 51. Work well. No adverse reactions

LCD C 文件请看看是否合适、请给我加分 第一次上传文件-LCD C requested documents to see if appropriate, please give me extra points first upload documents

包括读卡器源代码，专为研究RFID技术学习之用-Philips makes no warranty, expressed, implied or statutory, including but * not limited to any implied warranty of merchantability or fitness for any *particular purpose, or that the use will not infringe any third party patent,* copyright or trademark. Philips must not be liable for any loss or damage * arising from its use.

I2C总线程序，及读写24C04-I2C bus procedures, and writing 24C04

24C01读写程序，称C51源代码形式：write bit（unsigned char ch）@2001/03/23函数称明：内部函数，私人用户不直接调用。

在AVR上实现USB的功能，是模拟出的USB-In the AVR to achieve USB functionality of USB is to simulate the

本程序是一个人机接口程序，包含18B20,AD,DA,LCD，等各种源程序-This procedure is a man-machine interface program, including 18B20, AD, DA, LCD, and other source

智能车测速程序 智能车测速程序-Freescale cesu