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Getting data from Nextion to Arduino over serial

Hi everyone,
I'm a beginner in arduino and nextion and I'd like some explanation...
By just using the serial monitor of the arduino IDE, with my project code, I can only send data to nextion but not the data from the nextion.

However as I test the code of this topic
it works.

I thought the monitor was displaying everything happening in the serial (after setting the correct baud rate) but it's not that simple.

Excuse my ignorance but could someone explain why I get those results ?

1 Comment

i made the same question but none can answer it :/

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