ESP32-C3-MINI-H4 USB to UART not working

[Sophi9999]

Hello!
I designed a board with a ESP32-C3-MINI-1-H4 and a USB to UART connection to use Arduino.
My board isn't recognized by USB and I wondered where things might be wrong.



I have switches to EN (pin 8) and to GPIO9
GPIO8 measures HIGH
GPIO2 measures HIGH
GPIO9 measures HIGH and switches LOW
ESP_EN measures HIGH and switches LOW

The ESP32 measures a solid 3.3V.
Thanks in advance!

[Sprite]

You should short DN+ with DN2+ and DN- with DN2- otherwise your USB-C connection only works one way around; have you tried flipping it to see if it works then?

(Btw, according to the USB specs, an USB-C connector should have its shield connected directly to ground; R4/C2 are not needed.)

[Sophi9999]

Turning over the cable worked!
Thanks @sprite and also for the USB spec info.