A 4* 4 keyboard procedure, when the button is depressed will have in the digital...

C51单片机实现对PC鼠标的读取与显示具体细节请参考源程序将时钟线接入外部中断数据线接入普通I/O输入输出口-C51 MCU to read the PC mouse and display details please refer to the source clock line access external interrupt data lines access I/O input and output mouth

大学毕业设计作品：出租车计价器的设计：以AT89S52单片机为中心，通过金属传感器来测距，实现对出租车的计价统计。结合语音芯片ISD4004，时钟芯片DS1302，功放模块LM386N组成语音时间控制系统，最后通过液晶显示模块LCD12864显示单价、路程、总价、时间等。本系统可以实现单价、起步价、白天价、夜间价的显示和时间的修改。AT89S52通过P0口与外部语音报价电路相连，可以实现语音报价功能。-Graduated from college design work: the design of a taxi meter: The AT89S52 microcontroller as the center, ranging through the metal sensor to achieve statistical valuation of the taxi. Combination of voice chip ISD4004, clock chip DS1302, composed of voice amplifier module LM386N-time control system, the final adoption of liquid crystal display module LCD12864 show unit price, distance, total price and time. This system can achieve unit price, starting at daytime price, prices shown at night and the time changes. AT89S52 through the P0 port with an external circuit connected to voice offer, you can offer voice functionality.

硬盘作MP3,用IDE接口的旧硬盘,加入51系列的单片机和显示屏,可以作一个有个性的MP3,-Hard drive for MP3, using the old IDE interface hard drives, adding 51 series of single-chip computer and display, can be used as a personality MP3,

avr下载线制作，usb接口,isp的.控制芯片为ATMEGA8。-avr download line production, usb interface, isp

c8051F340驱动AT45D161D-AT45D161D driver of c8051F340

AVR单片机实现SPI通信完整源码,可直接拿过来用了-AVR MCU SPI communication complete source code, as it can be spent

很好的代码，好好学学，关于51单片机开发的独立键盘程序-A very good code, good to learn about the development of an independent 51 MCU Keyboard Program

cypress ez-usb usb-i2c-in 源码-cypress ez-usb usb- i2c-in-source

51单片机的4层电梯控制源代码，有需要的可以参考一下-51 SCM four-layer elevator control source code, there is a need that can refer to

以C8051为控制器以TI的c1101为模块的底层驱动。-With C8051 as the controller module TI s low-level driver for the c1101.