How to use the same arduino connection in two different apps?

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Sean Dunkelman 2021-8-11

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https://ww2.mathworks.cn/matlabcentral/answers/896567-how-to-use-the-same-arduino-connection-in-two-different-apps

回答： Amal Raj 2024-6-6

I have an app that uses several object based connections, arduino being one of them. However, I need to open a second app in a callback of the main app and I need to use the existing object based connections (like arduino) in the newly opened app. Any ideas on how to do this?

I have already tried clearing the existing connections and reconnecting, but each time it tells me that the connection already exists in my workspace (despite the fact I just cleared it). I have also tried sharing data between the apps as output/input variables but am struggling to do so and could use a workaround.

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Answer 1

Amal Raj 2024-6-6

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https://ww2.mathworks.cn/matlabcentral/answers/896567-how-to-use-the-same-arduino-connection-in-two-different-apps#answer_1468156

Hi Sean,

Unfortunately, directly sharing a serial port connection between multiple MATLAB apps running simultaneously isn't recommended. Serial ports are designed for exclusive access by one application at a time.

You could however try one of the following approces.