Changing the pin of Arduino in Matlab script for mapping algorithm

Question

Ali Khan 2019-6-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/466445-changing-the-pin-of-arduino-in-matlab-script-for-mapping-algorithm

评论： Floris 2019-6-12

HI guys,

I want to know that either we can change the predefined digital pin of Arduino in Matlab mapping algorithm or not. I am attaching the refrence link where i took the code. Now i am not sure that either these digital pins are predefined in libraries or just in a script. Thanks for your help

Mapping Your Surroundings Using MATLAB and Arduino

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Floris 2019-6-11

在 MATLAB Online 中打开

Hello,

Are you talking about the digital pins defined in the example code?

%% Create an ultrasonic sensor object with trigger pin D12 and echo pin D13.
%  Create a servo object for the servo connected to pin D3. 
sensor = addon(a, 'JRodrigoTech/HCSR04', 'D12', 'D13');
servo_motor = servo(a, 'D3');

Because you should be able to just configure 'D12', 'D13', 'D3' to other pins on your board.

You can read more about setting arduino pins here:

https://www.mathworks.com/help/supportpkg/arduinoio/index.html?s_tid=CRUX_lftnav

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Answer 1

Ali Khan 2019-6-11

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https://ww2.mathworks.cn/matlabcentral/answers/466445-changing-the-pin-of-arduino-in-matlab-script-for-mapping-algorithm#answer_378766

Thanks for your reply,

Actually i was confused that it can be possible or not. My main purpose is to send the data from arduino uning bluetooth to Matlab and map it.

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Floris 2019-6-11

So I have never messed around with bluetooth for MATLAB and Arduino. I would recommend doing some googling and looking around on the internet. Here is what I found: https://www.mathworks.com/help/supportpkg/arduinoio/ug/arduino-bluetooth-setup-issues.html

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Answer 2

Ali Khan 2019-6-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/466445-changing-the-pin-of-arduino-in-matlab-script-for-mapping-algorithm#answer_378768

在 MATLAB Online 中打开

Right now , I am implementing the example code available at the following link. When i run the code, a following error pop up. Can you tell me what is the exactly problem?

Undefined function or variable 'table'.
Error in Mapping_Your_Surroundings_Using_ArduinoandUltrasonicSensor (line 47)
polarplot (table(:,1)*pi/180, table (:,2));

Mapping Your Surroundings Using MATLAB and Arduino

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Floris 2019-6-12

Hello Ali,

I would open this as a separate question rather than using this question-answer thread to answer more questions. This error is, as the error states, because you have not defined 'table'. This means that the MATLAB compiler has no idea what to do with the word 'table' so take a good look at your code to see what table should be.

-Floris

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