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基于51单片机PWM控制LED灯渐亮渐灭实验(Based on 51 MCU PWM control of LED lights getting brighter gradually eliminate experimental)

说明：  Realize image watermarking, de-noising, plus noise and other functions, Including Deng's correlation, absolute correlation, correlation of slope, improved absolute correlation, D-S evidence theory data fusion.

TI的12位双路数模转换芯片DAC7612驱动程序(TI Dual, 12-Bit Serial Input DIGITAL-TO-ANALOG CONVERTER DAC7612 Program)

单片机开发电子工程师必备小工具 ga 超级串口助手　定时器计算时间。。。(dan pian ji kai fa bi bei xiao gongjv)

大多数自行车速度表工作通过使用霍尔效应传感器固定在自行车前叉。磁铁是附加到前轮上的辐条之一,它将与霍尔效应开关一次革命的车轮。速度计监测传感器计数轮革命。如果知道车轮的直径,距离可以很容易地计算如果你知道有多少革命的车轮。此外,如果时间完成革命,平均速度也可以计算出来。 对于这个问题,您将编写一个程序来确定总距离(英里)和平均速度(英里每小时)考虑到车轮直径,革命的数量和总时间的旅行。你可以假定前轮从未离开地面,并没有下滑或打滑。(Most bicycle speedometers work by using a Hall Effect sensor fastened to the front fork of the bicycle. A magnet is attached to one of the spokes on the front wheel so that it will line up with the Hall Effect switch once per revolution of the wheel. The speedometer monitors the sensor to count wheel revolutions. If the diameter of the wheel is known, the distance traveled can be easily be calculated if you know how many revolutions the wheel has made. In addition, if the time it takes to complete the revolutions is known, the average speed can also be calculated. For this problem, you will write a program to determine the total distance traveled (in miles) and the average speed (in Miles Per Hour) given the wheel diameter, the number of revolutions and the total time of the trip. You can assume that the front wheel never leaves the ground, and there is no slipping or skidding.)

利用51单片机做电阻测量仪，实现按键设置阻值自动报警提示(The use of 51 single-chip resistance measuring instrument to achieve automatic alarm button to set the resistance)

网上很多都是英语的，现在把CAN2.0规范中文版的分享出来，有需要的朋友可以下载下来学习了。(Chinese version of the CAN2.0 specification,)

单片机计算机设计，实现加减乘除，包括小数点的运算，用的是4*4的键盘(Single chip computer design, realization add, subtract, multiply and divide, including the operations of the decimal point, with 4* 4 is the keyboard)

STM32实现TLS2561光照度传感器的工作(failed to translate)

SSD2828数据手册1.3版本， QN封装，RGB转MIPI芯片(SSD2828 QN 1.3 version datasheet, a chip transfer RGB to MIPI)