由sEOS简化来得，应用于51的简单OS，主要是时间的管理，没有更多的功能，但是分实用...

avr单片机，12864液晶带字库源程序-avr microcontroller, 12864 with character LCD source

x5045的C51程序，实现看门狗和E2PROM功能-x5045 C51 procedures, and the watchdog function of E2PROM

LCD12864驱动开发，在KeilC51中非常有用

c8051f020 i2c 的简单应用-c8051f020 i2c simple application

胡家荣（hjr7581@163.com）用KEIL写的的几个LCD、串口等方面的程序-Hu Jia-rong (hjr7581@163.com) with KEIL wrote several LCD, Serial procedures etc.

yige jiao tong deng xiao xi tong ,bao kuo c chengxu he dianlutu,yong KEIL he PROTUES dakai.-Small trafficlight system,use KEIL and PROTUES open it.

利用51系列单片机实现四种波形，正弦波、方拨、阶梯波、三角波，采用开关电路实现四种波形转换、放大电路实现波形幅度可调。通过编程实现仿真。-51 Series MCU realize the use of four types of waveforms, sine, square dial, ladder wave, triangle wave, the use of switching circuits to achieve the four waveform conversion, amplifier circuit realize adjustable waveform amplitude. Through the realization of simulation programming.

at89c2051制作的超声波测距源程序 范围20cm-10m 精度1cm 如果需要电路图 请与我联系！-AT89C2051 source produced by the scope of ultrasonic rangefinder 20cm-10m accuracy 1cm circuit diagram if you need please contact me!

在嵌入式开发中，AVR单片机驱动 128*64的KS0107液晶的实例。非常易于大家的移植。-In the embedded development, AVR single-chip driver 128* 64 LCD KS0107 example. We are very easy to transplant.

自制红外线自动门控制器电路,市场上成品的自动门控制及执行机构价格普遍偏高，文中介绍的方法适合家庭自制使用，用到的元器件都很容易找到，有兴趣者不仿一试。-Self-made infrared automatic door controller circuit, the market finished the automatic door control and enforcement agencies generally high prices, the introduction of the method is suitable for home use, the components used are very easy to find, do not have interest in like a try.