拉幕式数码显示技术，有详细的电路图以及C的程序

C51单片机教程L2,以及L2的例子源代码. -C51 Singlechip Tutorial L2, and L2 the example source code.

我这是一个1602的液晶程序，是51的很精典的-I This is a 1602 LCD procedure is very classical 51

数码管驱动芯片用键盘驱动，有详细说明

Arduino的步进电机控制，可以控制一个步进电机的方向，速度，内带stepper函数，可以直接调用-Arduino

pwm convter.it contains C sourse. has been modified.

一个电子产品开发时的部分c代码A!绝对能用!-When an electronic product development part of c code A! Absolutely can!

四通道的AD采样转换数据，并用于键盘和数码管的操作和显示。附有参考资料和pdf格式的原理图。-Four-channel sampling of the AD conversion data, and for the keyboard and the operation of digital control and display. With reference materials and schematic diagram pdf format.

用51单片机内部定时器实现数字钟功能，可以显示小时，分，秒，误差很小。-51 single-chip microcomputer with internal timer digital clock function, can display hours, minutes and seconds, the error small.

基于usb开发板的hid键盘,使用者可根据此代码编写自己的HID设备-development board based on usb hid the keyboard, users can be prepared according to this code of HID equipment

51单片机上实现对PS2手柄的解析，已经实验通过。-51 microcontroller implemented on PS2 handle parsing experiment has already been passed.