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By trackerj
#27221 As somebody that probably mostly of you know already likes to say, "A trap for young players" :)
And not only for them. Falling once usually is not enought to learn the lesson !

For reference: I2C Communication Problems - LM75 Temperature sensor.

Youtube related video:


As been a general programming technique problem, I think it should stay here, despite the fact that for the ease of presentation NodeMCU was used. I really think is a good lesson to be learn.