ESP32 Forum

Posted: **Sat Jan 16, 2021 1:23 pm**

so I have two ESP32-DevKitC v4 kits....

I have having a ton of trouble trying to get the boot serial output.

I have tried screen in iTerm and terminal and Minicom on MacOS bigsur, and on KDE neon

I have tried all the baud rates, every time I reset the board I get garbage out (I am also unable to upload firmware), so trying to view the boot log to see what's going on....

see attached image

any ideas, I am at a complete loss.

Posted: **Sat Jan 16, 2021 3:43 pm**

Did you try uart speed 115200, which is default esp32 speed?

Posted: **Sun Jan 17, 2021 2:53 am**

Hi,

I have tried 115200, and all the speeds in-between. Even an external serial to USB adapter with all the speeds, same results

Posted: **Sun Jan 17, 2021 1:41 pm**

That is odd... are you sure you have DevkitC's, and not e.g. Sparkfun ESP Thing, or some other board that use a different crystal? Apart from that' I'm scratching my head, you should get good output on 115200 baud.

ESP32 Forum

garbage serial out put - boot

garbage serial out put - boot

Re: garbage serial out put - boot

Re: garbage serial out put - boot

Re: garbage serial out put - boot