bluetooth

基于互补滤波器的四旋翼飞行器姿态解算 四元数解算姿态完全解析 惯性导航等相关资料(Attitude Solution of Four-Rotor Vehicle Based on Complementary Filter Quaternion Solution Attitude Complete Analysis Inertial navigation and other related information)

说明：  NFC smart card reader driver

说明：  程序实现了带有预处理的挑点搜索算法，2014年提出算法。(The program realizes the point search algorithm with preprocessing, which was proposed in 2014.)

一转BMP为数据的单EXE软件，网上找不到的（IC 供应商内部的）方便LCD同行使用，可以转Gray & RGB.-BMP switch to a single data EXE software. not online (IC vendors internal) to facilitate the use of peer-LCD can switch Gray

主板BIOS升级工具,适合较古老的机器使用 8.48版-mainboard BIOS upgrade tools for ancient machines used version 8.48

用mushrooms数据对模式识别课程讲述的各种模式分类方法[线性分类，Bayesian分类，Parzen窗，KNN]和特征选择和降维方法[PCA,LDA]进行了模拟，并给出了各类分类方法的结果，(It s the simulations about linear classification ,Bayesian ,Parzen and KNN of pattern recognition .And ,It gives the results.)

最近在acm.zju.edu.cn上通过的题目的代码，都是比较有价值的题目-Acm.zju.edu.cn recently adopted the title of the code, are relatively valuable topic

LabVIEW应用指令集SCPI（Standard Commands for Programmable Device）-LabVIEW Application Instruction Set SCPI (Standard Commands for Programmable Device)

E在线升级例子，不懂的一看就知道了，很简单易学-E Online upgrade example, do not look for one know, it is easy to learn

显示螺旋队列，//螺旋队列.cpp // 21 22 ... ... // 20 7 8 9 10 // 19 6 1 2 11 // 18 5 4 3 12 // 17 16 15 14 13 //看清以上数字排列的规律，设1点的坐标是（0，0），X方向向右为正，y方向向下为正。例如，7的坐标为 //（-1，-1），2的坐标为（0，1），3的坐标为（1，1）。编程实现输入任意一点坐标（x,y),输出所对应得-Show the spiral queue,// spiral queue. Cpp// 21 22 ... ...// 20 7 8 9 10// 19 6 1 2 11// 18 5 4 3 12// 17 16 15 14 13// see the above figures with the laws of 1:00 set the coordinates is (0,0), X is positive to the right direction, y direction is positive downward. For example, 7 of the coordinates// (-1,-1), 2 coordinates for (0,1), 3 coordinates for the (1,1). Programming enter coordinates of any point (x, y), the output corresponding to a