MATLAB: Arduino read digital input always 1

arduinodigital inputsimulink

Hello,

I'm trying to read a digital input in simulink and then activate the 13 led pin of my arduino MEGA via a digital output. My problem is that the input is always 1, no matter if I push the button or not. How can I solve this?

Thanks in advance and regards,

Best Answer

Hi,

You can click the the "Deploy to hardware" button as described in the Run Model on Arduino Hardware topic.

One common error is to click the "Run" button (green triangle), which simulates the model on your host computer. The input is always 1 because they do not exist on the host computer.

Hope it helps !

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https://www.mathworks.com/help/supportpkg/arduinoio/ref/readvoltage.html?searchHighlight=readvoltage&s_tid=doc_srchtitle

If you want to read it into Simulink, check out all the Arduino examples / tutorials at:

https://www.mathworks.com/help/supportpkg/arduino/examples.html#d0e29

Depending on which application you are looking for, make sure you use the MATLAB add-in installer to get the corresponding Ardunio Support Package (MATLAB Support Package for Arduino Hardware and/or Simulink Support Package for Arduino Hardware)

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