1.电子琴功能 用实验板上K1~K7作为电子琴的7个按键，每个按键对应一个音符要求当按下其中一个按键，就通过P2.5口输出对应频率信号使蜂鸣器发出特定音符声...

基于at89c52的乒乓球游戏系统，全部通过lcd菜单选择，通过proteus仿真（绝对可行）-err

C51常用字程序，单片及开发中的常用程序，缩小巧但很实用，而且包括的面很广，有很强的借鉴价值！-C51 characters commonly used procedures, and development of a single common procedures, and narrow the cleverest but very useful, but also the broad-based and has a strong reference value!

基于C51单片机的温度测量采用DS18B20的原理，详细介绍了DS18B20的使用。

多用途的usb调试程序.用vb编写.可通过增加功能,变成自己的软件.-Usb multi-purpose debugger. Prepared using vb. Can increase the functionality into its own software.

Microchip Technology Inc. 的HCS300 是一款跳码编码 器，它是专为安防遥控无钥门禁（RKE）系统而设计 的。 HCS300使用KEELOQ跳码技术，并具有安全性高、 封装尺寸小和成本低等特性。 HCS300 是单向遥控无钥 门禁系统和访问控制系统最完美的解决方案。-The HCS300 from Microchip Technology Inc. is a code hopping encoder designed for secure Remote Keyless Entry (RKE) systems. The HCS300 utilizes the KEELOQ code hopping technology, incorporating high security, a small package outline and low cost. The HCS300 is a perfect solution for unidirectional remote keyless entry systems and access control systems.via any external connection. The EEPROM data is pro-grammable but read-protected. 2006 Microchip Technology Inc.

此程序为单片机开发过程常用的led小灯闪烁的小程序。用asm编写，供参考。-procedure for microcontroller development process commonly used by small lights flashing led the small program. With asm prepared for reference.

最高实时取样率2M点/秒，精度8Bit 取样缓冲器深度：256字节 模拟频带宽度 0 - 1MHz 垂直灵敏度100mV/Div - 5V/Div (按1-2-5 方式递进)-2M real-time sampling rate of the highest points/sec, accuracy of sampling 8Bit buffer depth: 256 bytes bandwidth analog 0- 1MHz vertical sensitivity 100mV/Div- 5V/Div (by way of progressive 1-2-5)

采样C语言编写的128×64分辩率的汉字液晶显示驱动程序-C language sampling of 128 x 64 Resolution of the Chinese LCD Driver

这是监视器行业常见的键盘与球机通讯协议的C语言源代码-This is a common keyboard monitor industry with the ball machine communication protocol C-language source code

凌阳61单片机的外部中断使用方法（用汇编语言编写）。-Sunplus 61 single-chip microcomputer to use the external interrupt (using compiled languages).