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Topic: Interfacing NodeMCU with Arduino Mega through Serial (Read 4241 times) previous topic - next topic


the buffer fills up because it is read too slow.
but it is strange that it fills up with zeros even if you now send only 'a'
What do you mean by strange? Do you think it is a board issue?


Update: a friend of mine was kind to lend me one NodeMCU and turns out the whole thing is now working.

Could anyone tell me how do I diagnose my board? Should I reflash the firmware? Or is it for sure a physical problem?

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