利用 AT89S51 单片机的 P0 端口的 P0.0 － P0.7 连接到一个共阴数码管的 a － h 的笔段上，数码管的公共端接地。在数码管上循环显示 0...

《51系列单片机高级实例开发指南》一书的CAN总线的C51源代码-"51 MCU Development Guide Senior example," a book of CAN Bus C51 source code!

智能遥控电风扇控制器源程序，可以实现风速换档，带有温度控制，所有功能可用遥控完成-Intelligent Remote Controller source fans, can achieve a speed of transmission, with temperature control, all functions can be remote-controlled completed

此为友善之臂micro2440的电子电路封装原图，更新时间为2009年2月28日。-This is a friendly arm of the electronic circuit package micro2440 image, update time for February 28, 2009.

单片机A51开发的打印机出动程序-SCM A51 development printers deployed procedures

麦迪工作室51开发板上跑马灯的试验代码。-Madison Studio 51 on the board to develop the test code Marquee.

keil 资料-keil information

c8051f120端口模拟的I2C,点亮PCF8574驱动的发光二极管-c8051f120 simulated port I2C, lit PCF8574-driven light-emitting diodes

DS1302HT1302实时时钟与89C2051接口子程序

随着精准农业的发展，农业种植和农业研究人员需要一种手持式NDVI测量仪，以便对农作物长势进行定量测量。本文讨论了一种手持式NDVI测量仪的完整设计过程，详细论述了设计原理，并给出了详尽的单片机程序、设计电路原理图及PCB图。该NDVI测量仪采用太阳光作为光源，光电探测器采用滤光片和光敏二极管实现，用AT89C51单片机控制。其具有结构简单、成本低、轻便、低功耗的特点。-With the development of precision agriculture and farming, and agricultural researchers need a handheld NDVI measuring instrument, in order to crop growth for quantitative measurement. This paper discusses a handheld meter NDVI the integrity of the design process, discussed in detail the design principles, and gives a detailed SCM procedures, circuit schematics and PCB plans. The NDVI measuring instrument used sunlight as a light source, photodetector using filters and photodiode realized, with AT89C51 control. Its structure is simple, low cost, lightweight, low-power characteristics.

这是一个播放音乐的程序，at51 的mcu，已经调试通过，-This is a music program, at51 the mcu, has been commissioning adopted