led大屏幕点阵 有程序参考，在灯饰上用处很大！

合泰USB键盘程序，希望对初学者有帮助。-Hetai USB keyboard procedures, and they hope to have help beginners.

《生日快乐》mcu音乐程序，asm， 单片机也能发声了-"Happy Birthday" mcu music procedures asm, microcontroller can be a vocal.

网线测试仪程序，可测试网线长度（300M内），排序，用脉冲反波测试，时间*速度=距离的原理。-Cable tester program to test cable length (300M) with sorting, using anti-wave test pulse, time* speed = distance principle.

美国TI公司的protel 元器件库，在应用中需要更新，本人收集了最新的版本共30M，为提高上传速度分六次上传。文件名依次为TI_1到TI_6。希望大家设计电路板时少走弯路这里是第二个TI-2-TI" s U.S. Treasury protel components, need to be updated in the application, I collected a total of up-to-date version of 30M, to improve the upload speed upload six hours. File name followed by TI_1 to TI_6. Hope that the design of circuit board less detours here is the second TI-2

pic16f877a使用iic总线方式驱动低价温度芯片tc74，并液晶显示的一个程序，板上验证通过，可以直接使用，令附tc74中文资料-PIC16F877A using the IIC bus driven low temperature chip tc74, and liquid crystal display of a procedure to verify through the board, you can directly use, the attached information tc74 Chinese

240*160液晶驱动程序，厂家提供的源代码-240* 160 LCD driver, manufacturers provide source code

对显示器LCD的读写和I2C的控制程序，供大家享用-Reading and writing on the LCD display and I2C control procedures for everyone to enjoy

用C8051F040实现DA（模拟-数字）变换。C8051F040集成了12位精度的DA转换器。-With the C8051F040 to achieve DA (analog- digital) conversion. C8051F040 integrates a 12-bit accuracy of the DA converter.

c8051f120电机PCA0测速及PWM调速.rar一个比较有趣的程序,PWM技术很时髦.-c8051f120 Motor and PWM Speed PCA0 velocimetry. rar a more interesting program, PWM technology is very fashionable.