MATLAB: Custom Arduino Library won’t register.

arduinocustom library

As the title suggests, I am trying to implement custom libraries with the Arduino support package, but I can't get them to register. I'm using 2017b on Windows 10. Support package is version 17.2.0.
I've tried with the three example tutorials (LCD, Ultrasonic, and HelloWorld), and no luck getting them to register.
I have definitely added my arduino libraries to the path, along with my working directory that has my package directories and .m files. I've un/re-installed the support packages (in admin mode and not) and no luck. I did the thing they suggest for troubleshooting here
Here is my HelloWorld.h file:
#include "LibraryBase.h" 
class HelloWorld : public LibraryBase {
public:
  HelloWorld(MWArduinoClass& a){
    libName = "ExampleAddon/HelloWorld";
    a.registerLibrary(this);
  }
public:  
  void commandHandler(byte cmdID, byte* dataIn, unsigned int payloadSize){
    switch (cmdID){
            case 0x01:{  
        byte val [13] = "Hello World";  
        sendResponseMsg(cmdID, val, 13);
        break;
      }
      default:{
        // Do nothing
      }
    }
  }
}
And here is my HelloWorld.m:
classdef HelloWorld < arduinoio.LibraryBase
    properties(Access = private, Constant = true)
        READ_COMMAND = hex2dec('01')
    end
    properties(Access = protected, Constant = true)
        LibraryName = 'ExampleAddon/HelloWorld'
        DependentLibraries = {}
        ArduinoLibraryHeaderFiles = {}
        CppHeaderFile = fullfile(arduinoio.FilePath(mfilename('fullpath')), 'src', 'HelloWorld.h')
        CppClassName = 'HelloWorld'
    end
    methods
        function obj = HelloWorld(parentObj)
            obj.Parent = parentObj;
            obj.Pins = [];
        end 
        function out = read(obj)
            cmdID = obj.READ_COMMAND;
            inputs = [];
            output = sendCommand(obj, obj.LibraryName, cmdID, inputs);
            out = char(output);
        end
    end
end
No matter what I try, the end result is always the same:
    6×1 cell array
      {'Adafruit/MotorShieldV2'}
      {'I2C'                   }
      {'RotaryEncoder'         }
      {'SPI'                   }
      {'Servo'                 }
      {'ShiftRegister'         }
Any thoughts? Thanks!

Best Answer

Hi Kevin,
I know you have tried with the example add-on, but just to confirm it again, can you run the following code in MATLAB where you have the support package installed?
>>addpath(fullfile(arduinoio.SPPKGRoot,'arduinoioexamples','SDKExampleHelloWorld'))
>>listArduinoLibraries
See if you get the HelloWorld addon registered. If not, please contact our Technical Support to get further help.
On a side note, you are missing a semicolon at the end of your class definition in the HelloWorld.h file. Each C++ class ends with it. It will cause arduino programming to fail, after the library register issue is solved.
Thanks,
Menghan
MATLAB Hardware Team
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