Setup Arduino in Simulink port connection issue

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Sarah
Sarah 2017-6-12
回答： Leepakshi 2025-4-2
I am trying to run the simple led tutorial but when I choose the correct port(COM4) it will not connect and I get a timeout error. The default port is DEMO and I don't get an error message and the program runs but it doesn't actually do anything in terms of communicating with the board. Any suggestions?
  1 个评论
Prashant
Prashant 2023-6-12
A basic checklist below :
  1. Check if your arduino is actually on COM4 from Windows Device manager.
  2. Ensure you've selected correct arduino board in simulink hardware configuration
  3. Program your board using Arduino IDE to make sure your board is in working condition.
  4. Ensure your Arduino board is supported by the version of Simulink you're using.
  5. I don't believe there's any "Demo" port in simulink. Did you mean "Auto" ? If so, refer to step 1 above.
  6. Ensure the blocks used in your model are supported by Arduino board.
  7. Verify pin number for your Arduino board. THis always gets me as i work with several version of arduino boards.

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回答（1 个）

Leepakshi
Leepakshi 2025-4-2
Hi Sarah,
For this error confirm that appropriate drivers for the board are installed. Also ensure COM4 is the correct port. Sometimes, connections are an issue, verify secure connections with a reliable USB cable.
And if nothing works, try resetting the board or maybe try with another board.
You can refer to below documentation on Arduino:
https://www.mathworks.com/discovery/arduino-programming-matlab-simulink.html
Hope this will help!

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