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ESP32-S3 USB to UART Bridge Problem (Im a Beginner)

stonx , 11-20-2023, 10:24 AM
The foot print and the pinout is not the same, but the IC reference is exactly the same 🤨
stonx , 11-20-2023, 10:27 AM
And hi by the way 😄
stonx , 11-20-2023, 10:35 AM
The problemes it's causing :
- wich Suspend pin i should use ?
- what is the EP pin ?
stonx , 11-20-2023, 01:04 PM
Thats the translation i came up with, i dont know if it's correct
stonx , 11-20-2023, 01:05 PM
Thats the schematic
Robert Feranec , 11-20-2023, 02:17 PM
find datasheet of the one you would like to use, it will tell you what pins are there and how to connect them
QDrives , 11-20-2023, 09:42 PM
The first one on the left has the pins as the datasheet. The second on the right, has the pins you do not care about, set as NC (Not Connected).
As the pins **ARE** connected, that is a big mistake.
Whether or not you connect the pins is something else.
See datasheet https://www.silabs.com/documents/public/data-sheets/cp2102n-datasheet.pdf page 27
stonx , 11-21-2023, 02:57 PM
Ohh ok, thanks for the precision about the NC ports. I dont understand what is the big mistake though.
QDrives , 11-21-2023, 08:13 PM
What if, for ease, you connect them all to Gnd?
For a true NC (Not Connected) pin, that is no problem. However, here some are outputs and thus will create a shortcircuit.
stonx , 11-22-2023, 03:39 PM
yeah i see now, thanks for the explanations !
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