# is not recognized in matlab GUI

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gdz 2022-12-11

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https://ww2.mathworks.cn/matlabcentral/answers/1875732-is-not-recognized-in-matlab-gui

回答： Mann Baidi 2023-8-30

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I would like to add a library to matlab gui. However the "#" was not recognized by the matlab. Anyone knew what's happening?

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gdz 2022-12-12

Thank you for pointing out.

Actually I would like to read the temperature of a K-type thermpcouple by using a temperature module called MAX6675. The MAX6675 is connected to the Arduino and I have downloaded a MAX_6675 library from Arduino. The MAX6675 works well in Arduino, but now i would like to let the temeparature display on MATLAB GUI.

I found a similar project (https://youtu.be/vFup14vi6H4), which are integrated MAX6675 to the MATLAB simulink. However, he did not use a DLL file and the code is written in C. May I know why can he do that?

gdz 2022-12-14

Dear @dpb,

Am I going create two DLL files from the "max6675.h" and "max6675.cpp", or I only have to create from one of them?

Thank you.

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Mann Baidi 2023-8-30

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https://ww2.mathworks.cn/matlabcentral/answers/1875732-is-not-recognized-in-matlab-gui#answer_1296806

Hi,

I understand that you are facing issues in importing the .h libraries and .cpp files in MATLAB. I would suggest you follow the instructions given in the following link.

Create a C++ MEX Source File - MATLAB & Simulink - MathWorks India

Hope this helps!