步进电机的驱动程序,按3个速度段,让步进电机跑的跟精确

高速PCB设计指南,一本很有用的画线路板的书.-High-speed PCB design guidelines, a very useful circuit board painting book.

用4*4键盘模拟手机按键输入，16*2LCD输出-4* 4 keyboard keystrokes analog phones, 16* 2LCD output

基于51单片机的红外传感计数和无线发送程序-Single-chip based on 51 counts of infrared sensing and wireless sending procedures

本代码是无线遥控中常用的pt2272模块的主控单片机代码，实现了编址发送功能。-the wireless remote control code is used in the main control module pt2272 microcontroller code, Implementation of the address this function.

通过对红外线工作原理的了解，进行红外线的C语言编程-SDFSFSFS

单片机数字音乐盒课程设计，内含源代码，报告说明详细，绝对可用（music.asm)-SCM digital music boxes curriculum design, containing the source code, the report describes in detail, absolutely available (music.asm)

利用测量频率的方法进行运算 测量速度和里程，并用LED显示-The use of methods of measuring the frequency of computing the speed and length measurement, and LED display

PCF8563时钟芯片的驱动 头文件用mega16单片机-PCF8563 clock chip-driven header files using SCM mega16

keil C51 Safter－Switch事例-keil C51 Safter-Switch case

环境测量系统毕业设计大礼包 // 系统一直监测环境光线状况,如果光线太强或者太弱,系统会自动提示 利用61板的KEY3键控制温度测量及语音播报,每按一次KEY3键,61板播放一次温度值及温馨提示,如果光线柔和,同样会播放"光线柔和"-Environmental measurement system design big graduation gift// system has been monitoring ambient light conditions, if the light is too strong or too weak, the system will automatically prompt the use of 61 key control panel KEY3 temperature measurement and voice broadcast, every time KEY3 key board player 61 a temperature value and the gentle suggestion that if the soft light, soft light will also play