Cannot register Custom Add-on Library

I've written a custom add-on library to controll a stepper motor, however I'm having trouble registering it. I've both added the path via Set Path and tried running >>addpath('C:\Users\...'), but when I type in >>listArduinoLibraries, the add-on doesn't show up.

The Current Folder browser looks excactly as shown here (https://de.mathworks.com/help/matlab/supportpkg/register-add-on-library.html), with only the src folder and its content appearing faded.

This is my C++ Header File:

# include "LibraryBase.h"

# include "Stepper.h"

// Command IDs

# define ROTATE_STEPPER 0x01

# define STEPPER_SPEED 0x02

class Stepper_L298N : public LibraryBase

{

private:

Stepper stepper;

public:

Stepper_L298N(MWArduinoClass& a, int stepsPerRevolution, int pin1, int pin2, int pin3, int pin4)

: stepper (stepsPerRevolution, pin1, pin2, pin3, pin4)

{

libName = "Stepper_L298N";

a.registerLibrary(this);

}

public:

void commandHandler(byte cmdID, byte* dataIn, unsigned int payloadSize)

{

switch (cmdID){

case ROTATE_STEPPER:{

int steps;

memcpy(&steps, dataIn, sizeof(int));

stepper.step(steps);

sendResponseMsg(cmdID, 0, 0);

break;

}

case STEPPER_SPEED:{

int speed;

memcpy(&speed, dataIn, sizeof(int));

stepper.setSpeed(speed);

sendResponseMsg(cmdID, 0, 0);

break;

}

default:{

}

}

}

};

The first part of my Add-On Class looks like this:

classdef Stepper_L298N < matlabshared.addon.LibraryBase

properties (Access = protected)

Pins

end

properties (Access = private, Constant = true)

ROTATE_STEPPER = hex2dec('01')

STEPPER_SPEED = hex2dec('02')

end

properties (Access = protected, Constant = true)

LibraryName = 'Stepper_L298N'

DependentLibraries = {}

LibraryHeaderFiles = 'Stepper.h'

CppHeaderFile = fullfile(arduinoio.FilePath(mfilename('fullpath')), 'src', 'Stepper_L298N.h')

CppClassName = 'Stepper_L298N'

end

I've checked for typos in the file names, but I can't find any. Any advice what else could be wrong?

[Jana]

Okay, so I've contacted tech support about this, and what ended up solving it for me was changing the folder stucture, so that the src folder is now a subfolder of the +arduinoioaddons folder, and not the +ExampleAddon folder anymore. No idea why, but I can register my library now :)

Answer 1

[Eric Prandovsky]

MATLAB recognizes it's an arduino addon based on the folder structure. For example when you install the NeoPixel addon stored in:

\Toolboxes\NeoPixel Add-On Library for Arduino\+arduinoioaddons\+Adafruit\src

If you go to the Toolboxes folder and the addon is grayed out, right click on the NeoPixel Add-On folder and select "Add to Path --> Selected folders" MATLAB automatically discovers that there is an Arduino Add-on in that folder based on the folder name +arduinoioaddons