Code doesn't work for new Arduino Nano 33 BLE board

Hi, I am pretty new to Arduino.
I have code that worked successfully with my old Arduino board about a year ago. Then this year I bought two new ones, but I couldn't successfully run through all the lines in my code. (I can successfully upload my code to Arduino board)

Does anyone know the potential problem with it?
Is it possible that the same code that works for the old Arduino Nana 33 BLE, but not working for the new ones?

@cccroissant, your topic has been moved to a more suitable location on the forum.

I have no experience with the Nano33 BLE but it sounds highly unlikely. One possible reason might be that you use a different version of the compiler (e.g. board package upgrade, new install) which might result in different executables.

If you upload your code to the original board from the same PC, does it still work on the original board?

@cccroissant Did you install the libraries for your code via the IDE's library manager and ensured that you used the correct corresponding "Analog and Digital" pins in the new board?

Thank you for your help. I think the problem is with the board package.
I downloaded back to the old version and it can work. I think my next step will be trying to update my code so my code can work on the newest version of board package.

Yes, I think so.

Ensure that you install the board's package core, see

Hi @cccroissant. Please provide a detailed description of what you mean by "I couldn't successfully run through all the lines in my code".

Please post your full sketch.

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Welcome to the forum.

There were changes with the board support when Arduino separated the mbedOS devices e.g. Nano 33 BLE, Portenta and the new Nano RP2040 Connect. The changes where intentional and can break some code that was written with version 1.x.x (now marked deprecated in the boards manager).

Hi Klaus_K
That answers my questions. My code do works for 1.x.x version.
Thank you