Matlab安装Arduino函数库HC-SR04
这个官网给出的教程存在瑕疵HC-SR04 Add-On Library for Arduino，但还是能解决问题的。我是先在官网下的工具箱HCSR04_Add-On_Library_for_Arduino.mltbx，（如何安装）安装之后发现会报错，然后根据评论里的大佬的留言:到github上下载了一个文件，把解压后放到目录：
C:\MATLAB\SupportPackages\R2016a\arduino-1.6.1\libraries或者C:\Documents\Arduino\libraries
然后就可以使用了。
大佬原话如下：
Hi!
For all those who have downloaded and installed all the libraries but still cannot get their arduino board to work, follow the steps below. Skip those you’ve done already.
-install arduino support package for matlab.
-install arduino support package for simulink.
-download the hcsro4 arduino library from the link below
https://github.com/JRodrigoTech/Ultrasonic-HC-SR04/archive/master.zip
-extract the zip to Documents\Arduino\libraries" and rename it to ‘Ultrasonic’.
Note: if the exracted folder has two folder levels then you must delete one. see the paths below;
Correct path:
“Documents\Arduino\libraries\Ultrasonic”. then you see the “. h” file,…
Wrong path:
Documents\Arduino\libraries\Ultrasonic\Ultrasonic".
参考以下：
https://ww2.mathworks.cn/matlabcentral/fileexchange/57898-hc-sr04-add-on-library-for-arduino?s_tid=srchtitle
https://blog.csdn.net/majun1259389904/article/details/54773397