MATLAB can't find arduino (MAC)

I've been trying to connect the arduino to the MATLAB software.

>> a = arduino('/dev/tty.usbmodemfa131');

However, MATLAB constantly responds:

No Arduino hardware is found on port /dev/tty.usbmodemfa131. If using an official Arduino board, make sure it is plugged in. Otherwise, please specify both port and board type. For more information, see the arduino function reference page.

I am sure that I connected the USB to the right port. The Arduino IDE works perfectly on the same port.

To be more elaborate. I use a real Arduino UNO hardware, a macbook, MATLAB 2014a.

[Giacomo Pedretti]

Same problem with Arduino Due, MacOS X, MATLAB 2015A And the funny thing is that a couple of months ago it was working perfectly. I just went back to the project and there's no way MATLAB can find arduino

[Dhifaoui Bilel]

close the serial of arduino IDE and then re-run the matlab code .

Answer 1

[Martin Foltin]

Same problem. MATLAB R2015b + MacBookAIR + ARDUINO UNO. The Arduino IDE works without problems.

>> x=instrhwinfo('serial')

x = 

    HardwareInfo with properties:

       AvailableSerialPorts: {4x1 cell}
             JarFileVersion: 'Version 3.8'
      ObjectConstructorName: {4x1 cell}
                SerialPorts: {4x1 cell}

Access to your hardware may be provided by a support package. Go to the Support Package Installer to learn more.

>> x.SerialPorts

ans = 

      '/dev/tty.Bluetooth-Incoming-Port'
      '/dev/cu.Bluetooth-Incoming-Port'
      '/dev/tty.usbmodemFD121'
      '/dev/cu.usbmodemFD121'

>> a=arduino('/dev/cu.usbmodemFD121')

Cannot find Arduino hardware on port
/dev/cu.usbmodemFD121. Make sure Arduino hardware
is properly plugged in. Otherwise, please specify
both port and board type. For more information,
see arduino function reference page.

>>

Answer 2

[Martin Foltin]

>> a=arduino('/dev/cu.usbmodemFD121','Uno')

a = 

    arduino with properties:

                      Port: '/dev/cu.usbmodemFD121'
                     Board: 'Uno'
             AvailablePins: {'D2-D13', 'A0-A5'}
                 Libraries: {'I2C', 'SPI', 'Servo'}

Important is 'UNO' parameter !!!

Answer 3

[Luis]

Please, type the command as following:

>> a = arduino('/dev/cu.usbmodemfd121','Due')

Updating server code on Arduino Due (/dev/cu.usbmodemfd121). Please wait.

a =

arduino with properties:

                    Port: '/dev/cu.usbmodemfd121'
                   Board: 'Due'
     AvailableAnalogPins: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
    AvailableDigitalPins: [2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53]
               Libraries: {'I2C', 'SPI', 'Servo'}

>>

% Its very important to notice that '/dev/cu.usbmodemfd121' is different from '/dev/cu.usbmodemFD121'. If you do so, you will get the error message you are receiving. So, pay attention, please!!!!