I’m doing one project using blynk and NodeMCU, but I’m getting problem that it always showing to me “Device wasn’t online yet”
Can you please tell me what things i have to check to correct this error.
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What is serial monitor show?
first of all choose the correct topic category!
second, you should check if the token in your sketch is correct and if the hw can connect to blynk server. it would be useful to post your sketch too, but properly formatted.
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I fixed your title and category for relevancy.
Please read through the documentation for advice on troubleshooting
http://docs.blynk.cc/#troubleshooting
And you can also search this forum for the same error message ans see what others have done.