单片机标准键盘PS2与单片机通信这是用C语言写 的哈

采用实时时钟芯片DS1302+AT89C2051的红外遥控LED电子钟-using real-time clock chip DS1302 AT89C2051 infrared remote control LED electronic bell

指纹通讯模块程序，该模块以ATMEL公司的89s52为单片机与指纹模块进行数据通讯，以面向门禁或考勤等应用-Fingerprint procedures for communication module, the module to ATMEL Corporation 89s52 for single-chip modules and fingerprint data communication-oriented applications such as access control or attendance

基于AT89S8253单片机的LCD驱动程序代码，用c语言编写-AT89S8253 MCU-based LCD driver code, using c language

实现DS18b20数字温度传感器的测温！-Digital temperature sensor DS18B20 realize the temperature measurement!

本程序有友善之臂提供，为2440开发板的led示例程序，请使用ADS编译。-This procedure has the arm of a friendly offer for the 2440 sample development board led the process, use the ADS compiler.

测试单片机UART的程序，模块化非常好，稍加修改就可以作为应用层和底层模块之间的接口。-MCU UART test program, modular very good, with slight modifications can be used as application layer and the interface between the bottom of the module.

软件实现日历，采用LCD1602显示,1602的第一行滚动显示设计说明，第二行显示日历-LCD1602 LCD1602 LCD1602 LCD1602

用8051汇编编程的定点，三字节浮点，四字节浮点的字程序库。-8051 compilation of programming with the fixed-point, three-byte floating-point, four-byte floating-point library word.

12864液晶在出厂时其对比度已经调好，所以用户在使用的时候第三管脚可不用接任何东西，本实验板上为了兼容多家12864液晶所以加了液晶对比度调节电位器，若用户使用我们配套的12864液晶可不用管它，液晶的第三管脚悬空就可以。有些液晶功耗比较大，用户在使用的时候可将液晶的第19、20引脚的背光不接，这样字体会很清楚-12864 LCD contrast, when the factory has a good tune, so when users can not access the third pin anything, this experiment in order to compatible with more than 12,864 on-board LCD so the addition of LCD contrast adjustment potentiometer, if users supporting our 12864 can not regardless of LCD, LCD" s third pin can be left vacant. Some relatively large power consumption of LCD, users can be used when the first 19,20 LCD backlight will not receive the pin, so that fonts will be very clear

５１单片机综合设计开发事例-51 Single-chip integrated design and development examples