Cannot use 'device' function to work via I2C communication. -MATLAB

I want to use MPU 6050 to send data to MATLAB.

But there is an error => Undefined function or variable 'device'.

I am using MATLAB R2019a academic use, already have Instrument control toolbox.

The code I used =>

%% setup 
clear all
hold all
a = arduino;
mpu = device (a, 'I2CAddress' , '0x68' ); % mpu adress is normally 0x68
writeRegister (mpu, hex2dec ( 'B6' ), hex2dec ('00 ' ), ' int16 ' ); % reset
data = zeros (10000,14, 'int8' ); % prelocating for the speed
j = 1;
a1 = animatedline ( 'Color' , [1 0 0]);
a2 = animatedline ( 'Color' , [0 1 0]);
a3 = animatedline ( 'Color' , [0 0 1]);
legend ( 'Accel_x' , 'Accel_y' , 'Accel_z' )

%% loop
while (true)
    x = 1;
    for i = 59: 72 % 14 Data Registers for Accel, Temp, Gyro
        data (j, x) = readRegister (mpu, i, 'int8' );
        x = x + 1;
    end
    y = swapbytes (typecast (data (j, :), 'int16' )) % if your system is big-endian remove the swapbytes function
    addpoints (a1, j, double (y (1)));
    addpoints (a2, j, double (y (2)));
    addpoints (a3, j, double (y (3)));
    j = j + 1;
    drawnow limitrate
end

[Walter Roberson]

Experiment with removing the space between device and the (

[Akira]

Sorry, My original code does not have space between command and (, All of them.

[Walter Roberson]

Which arduino toolbox do you have installed?

[Akira]

Arduino IO Package.

[Walter Roberson]

There are two very different releases for MATLAB, and I think I saw a third party one as well.

[Akira]

Which one should I use. Could you give me an advice?

[Johanens Harms]

Hallo Akira, have you found a solution to your issue yet? I have the same problem and am unable to fix it. Thanks!

[Walter Roberson]

https://www.mathworks.com/hardware-support/arduino-matlab.html

Answer 1

[Chris Bresee]

I've noticed that some versions of the arduino support package use a different function than "device". Don't know why this is, but try:

i2cObj = i2cdev(obj, address, varargin)

Example:

mpu = i2cdev(a, '0x68');

[Walter Roberson]

i2cdev() is used for Raspberry Pi. device() is used for Arduino; an example is at https://www.mathworks.com/help/supportpkg/arduinoio/examples/measure-temperature-from-i2c-device-on-arduino-hardware.html

[Chris Bresee]

It's in my arduino.m, and works for me with arduino. My arduino.m also doesn't have a definition for the device function. I had a similar problem with trying to control an spi device, and found that spidev works for my version of arduino.m

[Walter Roberson]

Which MATLAB release are you using?

[Chris Bresee]

2018a

[Chris Bresee]

[Hasto Priananto]

I cant even use both, the i2cdev() and device() on my matlab. Its says error on that point