Arduino simulink blocks anounce "???"

Hi. I have troubles with Simulink Arduino Hardware library. Things are I messed some example models and decided to reinstall Arduino Hardware. But after that I took the same blocks - which had worked fine before - announced "???". The error window said that "S-funtion block doesnt exist". I have reinstalled it many times but it doesnt work. Has anyone experienced this before ? Please help

Answer 1

[Shreshth]

Hey,

To resolve the "S-function block doesn't exist" error in Simulink with the Arduino Hardware library, try these steps:

1. Reset MATLAB Path: Use restoredefaultpath; rehash toolboxcache in the Command Window.
2. Reinstall Arduino Package: Uninstall and then reinstall the Arduino Support Package via the MATLAB Add-Ons menu.
3. Check for Duplicates: Ensure there are no multiple installations of the package.
4. Verify Block References: Ensure the S-function block is correctly referenced in your model.
5. Check Compatibility: Confirm your MATLAB and Simulink versions are compatible with the Arduino package.
6. Update Software: Make sure MATLAB, Simulink, and the Arduino package are up to date.
7. Consult MATLAB Resources: Look for solutions on MATLAB Central or contact MathWorks support if needed.

These steps should help resolve the issue.