I have working code that i made two years ago and it works fine. Now when I try to upload this same code to another unit (Wemos D1 mini) it does not work at all. This is not the first time when I come across with this problem.
Now, when I start a new sketch and copy-paste the code it works just fine.
I can't think anything else than IDE new version causes this. Am I right?
In my mind new IDE should work with code that is made in an earlier version.
For this board you must be load a core, and it can changed too. and library for sketch too
Hi @WemosAlaPlaya. I'm going to ask you to post some additional information that might help us to identify the problem.
Please do this:
- If you don't still have the IDE or web editor open with the error present, repeat the process that generated it.
- You now need to copy the full and exact text of the output.
The procedure for doing this is different depending on which Arduino development software you are using:- Arduino IDE 1.x: Click the Copy error messages button on the right side of the orange bar in the IDE.
- Arduino IDE 2.x: Right click on the black "Output" pane at the bottom of the IDE window and then select Copy All from the context menu.
- Open a forum reply here by clicking the Reply button.
- Click the
</>icon on the post composer toolbar.
This will add the forum's code block markup (```) to your reply to make sure the error messages are correctly formatted.
- Press Ctrl+V.
This will paste the compilation output into the code block. - Move the cursor outside of the code block markup before you add any additional text to your reply.
- Click the Reply button to post the output.
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