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Topic: error: espcomm_open failed (Read 24948 times) previous topic - next topic

ieee488

i ran an example from the software on my esp8266 nodemcu v1.0 i also installed the drivers and just connected the module to the PC via micro USB cable. i selected the esp8266 for the example. and still getting the same error if anyone knows how to fix this please reply to this comment for the same.
thank you
Not a data micro USB cable; yours just charges.


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BOUKHILI

Hi
i had this proble when i upload the scketch

erreur:
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
Une erreur est survenue lors du transfert du croquis

Tachyon01

In my case trying again works many times.

Some other times closing the IDE and then opening it again helps.
But I also don't know why this happens.

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