我做的超声波测距程序，基于at的8位单片机的，用c语言编写的。...

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

51单片机与USB芯片PDIUSBD12接口固件程序,来源于周立功单片机-51 MCU with USB interface chip PDIUSBD12 firmware procedures, Zhou, who comes from SCM

PIC单片机无符号数运算子程序,可以直接调用!-PIC unsigned few Operational subroutine can directly call!

SPWM三相波形发生器，可应用于SA4828芯片的应用-SPWM three-phase waveform generator can be used SA4828 chip Application

本程序是一个WGM-12864LCD的驱动程序。不带字库。用了一晚上的时间终于调出来了。能显示汉字图片。给大家共享享。-This procedure is a WGM-12864LCD drivers. Without the font. Spent one night finally tune out. Can display Chinese characters picture. To the U.S. share entitlements.

RS232通信程序，是PC机与单片机之间的通信-RS232 communication program is the PC machine with single-chip communication between

AT89C2051单片机设计开发的ML99V4型传呼机发码电路的功能、原理、编程及应用。-AT89C2051 ML99V4 design and development of the code pager type of circuit functions, principle, programming and applications.

ATMEGA128的LCD驱动程序，对自己编写端口驱动的同志有很大的帮助！-ATMEGA128 the LCD driver, port driver of their comrades in the preparation of great help!

4X3键盘扫描以及4位动态LED显示的单片机程序-4x3 keypad scanner and four dynamic LED display single-chip program

ISD4004程序的说明书及C语言驱动程序包-ISD4004 procedures manual and the C language driver package