用89c2051模拟产生dtmf信号，广泛用于防盗报警、电话数据传输等；节省发号及收号电路，成本低。...

NBA24秒计时器设计，用单片机设计成功的，包括最终的报告-NBA 24 seconds timer design

CC2420 提供了发送确认帧的固件，使能AUTOACK 将使得硬件可以自动生成确认帧。-CC2420 provides a frame to send to confirm the firmware so that it can AUTOACK will allow the hardware can automatically generate confirmation frame.

51 红外实验-51 Infrared Experiment

一个不错的keil优化手册，适合初学者，希望能提供帮助-A good optimization keil manual, suitable for beginners, hoping to provide help

单片机93c64应用，很多错的。请大家踊跃下载啊。-93c64 microcontroller applications, a lot of wrong. Please download ah enthusiastically.

51单片机开发的N多实例及程序，程序包括汇编及C-N the development of 51 single-chip multi-instance and procedures, including procedures for the compilation and C

利用单片机51加sl811芯片实现对u盘读写的控制，代码仅供大家参考，如有不对之处，敬请谅解-Sl811 increase the use of single-chip 51 chip on the u disk read and write control code for your reference, if doing so after updating

学习51单片机必备的一些C语言基础知识，对C语言不熟悉的朋友会有一定的帮助-51 Singlechip necessary to learn some basic knowledge of C language, on the C language are not familiar with our friends will help

台湾凌阳十六位单片机简单的A_D D_A的程序，对初学者有用。-Taiwan Sunplus 16 SCM A_D D_A simple procedure, useful for beginners.

ht47r20遥控程序，红外线载波输出频率这系统时钟的12分频，当系统频率为480KHZ，载波频率为40KHZ-ht47r20 remote control procedures, infrared output carrier frequency system clock frequency of 12 minutes, when the system frequency for 480KHZ, carrier frequency 40KHZ