矩阵键盘工程

这是一个数组实现的程序。如何创建和做数组中元素的递增和降阶排列。这有4个程序，可以帮助你学习的基础知识的排序和玩的元素在数组中；

51单片机新型按键扫描，不用10ms延时消抖，实时性大大提高。每个按键有长按短按功能，采用结构体对象化编程，增加按键极度方便。(The new key scan does not use 10ms delay to eliminate jitter, and the real-time performance is greatly improved. Each button has a long press, a short press function, the use of structured object programming, increasing the key, extremely convenient.)

资料管理系统,供大家学习之用。是我从网上找的。大家供享一下。-information management system for all learning. Yes, I find from the Internet. For what we enjoy.

捷宇 高拍仪 demo SDK

输入椭圆中心和长短轴径; 2. 计算得到中心在原点的椭圆上的第一个点=; 3. 根据公式(1.1.3-2)计算区域1中决策参数的初值为; 4. 在区域1中每个位置处，从开始，反复按照公式(1.1.3-3)更新决策参数，若决策参数小于0则不变，反之加1，一直循环到为止，记第一个满足此条件的点为(); 5. 在区域2的每个位置处，从开始，反复按照公式(1.1.3-6)更新决策参数，若决策参数小于0则不变，反之加1，一直循环到()为止;(Input ellipse center and long and short axis diameter; 2. The first point of the center on the ellipse at the origin is calculated. 3. According to formula (1.1.3-2), the initial value of decision-making parameters in region 1 is calculated. 4. At each location in region 1, the decision-making parameters are updated repeatedly according to formula (1.1.3-3). If the decision-making parameters are less than 0, they will remain unchanged. If the decision-making parameters are less than 0, then add 1 and cycle until the first point satisfying this condition is (); 5. At each location of region 2, the decision parameters are updated repeatedly according to the formula (1.1.3-6). If the decision parameters are less than 0, they will remain unchanged. If the decision parameters are less than 0, then add 1 and cycle until ().)

基于51单片机通信的其中一种，I2C总线通信。(I2C bus communication is one of 51 MCU communication.)

说明：  C语言实现BP神经网络算法 精度高 实用 精巧(C language algorithm for BP neural network)

Ansi To Ascii and Ascii to Ansi converter

此压缩包为AT89C51控制的电子门铃 包括keil文件包 以及PROTEUS的仿真 希望对初学者有所帮助(This compression packages for AT89C51 control including electronic doorbell keil package as well as the PROTEUS simulation wish to be helpful for beginners)

从这个应用程序中，你可以把你的照片藏在另一张图片的后面，并把它发送给一些人