Demonstration board chair driving, many drivers use to control their digital tub...

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.

USART以查询方式收发数据，接收发自电脑的数据，将其显示在LED上，并将接到到的数据减1后返回电脑-USART to send and receive data to query, receive from the bottom of the computer data that could be displayed in the LED, and will receive the data returned by a computer

Aditional source code for sti5518 firmware uploader.

pic18fxxx的C语言程序例程-pic18fxxx C Programming Language Program

ICDLL1. AT24C01A/02/04/08/16/64卡 该系列IC卡均为非加密存储卡，容量分别为1K，2K，4K，8K，16K，64K bit，只有读、写两种操作。-ICDLL 1. AT24C01A/02/04/08/16/64卡 该系列IC卡均为非加密存储卡，容量分别为1K，2K，4K，8K，16K，64K bit，只有读、写两种操作。

主要介绍高速电路中EMC的设计和需要考虑的内容-Introduction of the main high-speed circuit design and EMC need to consider the contents of

dds中文资料，从原理入手，交你如何去设计dds。-dds Chinese information, starting from the principle of paying you how to design dds.

C51读写fm1702sl SPI接口的读写程序 IO口模拟SPI接口-C51 to read and write fm1702sl SPI interface to read and write procedures for analog IO port SPI interface

是用AT89C2051主控音量控制PT2258,数码管显示, 红外线遥控,2.1/5.1音源选择)包括全套原理图,源程序,HEX文件-AT89C2051 is PT2258 master volume control, digital control, infra-red remote control, 2.1/5.1 sources choice), including a full set of schematics, source, the HEX file

本文详细系统地介绍了uC/OS-II 在51 单片机上的移植、重入实现方法、硬件仿真、固化、人机界面等关键内容。-paper detailed and systematic introduction of the Phone/OS-II in 51 MCU transplant and re-entry method, hardware simulation, curing, the man-machine interface and other key elements.