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ESP toolchain installation

Posted: Fri Jan 16, 2026 8:33 am
by RGV250
Hi,
I know this toolchain can be a nightmare but personally I have never had any issues. I have a new Win11 PC that I have installed FC 10 & 11 on.
The ESP installation seemed to go as planned but when I tried to compile to target I had communication issues. After a bit of investigation the CP2102 driver was not installed. I might be wrong but I cannot recall needing to do this seperately in the past.

I know this is out of FC hands but wondered if it is a new issue it would be good to add this step to the installation guide. It was version 5.3a if that helps.

Regards,
Bob

Re: ESP toolchain installation

Posted: Fri Jan 16, 2026 9:56 am
by BenR
Hi Bob,

It could potentially be a fake or less then legit version of the chip.

FTDI had a problem a while back where they actively blocked fake chips from auto installing using the drivers on Windows update. Could be a similar issue. Likely once a legit chip is detected and the official driver has been installed it will work for all the clones and copies too.

Re: ESP toolchain installation

Posted: Fri Jan 16, 2026 11:29 am
by RGV250
Hi Ben,
The ESP32 I have has a Silicon labs CP2102 chip.
It might be that I have had to install it seperately on the other PC but just forgot about it?

Bob

Re: ESP toolchain installation

Posted: Fri Jan 16, 2026 4:51 pm
by medelec35
Hi Bob.
I remember when I last reinstalled windows, I also had to install CP210X drivers, depending on thee ESP32 device used.