Please let me know if this is not the right part of the forum.
I was following this tutorial:
On My Ubuntu, the device was found, uploading went fine. But now I cannot see my board, after connecting it.
Before the upload, there were a few lights on board, red, green, and blue, if I remember correctly.
Now there’s just one, red. Platform.IO does not detect this device. What went wrong, how can I fix it?