ESP32-S3-DevKitC-1 USB port doesn't have power 5V

yupingzhang2005
Posts: 10
Joined: Sat Feb 18, 2023 6:22 pm

ESP32-S3-DevKitC-1 USB port doesn't have power 5V

Postby yupingzhang2005 » Mon Mar 13, 2023 3:00 am

Hi,
I attached a USB drive to USB port of ESP32-S3-DevKitC-1 board, and the board can't detect the USB drive. I checked schematic, there is no power 5V (from UART USB) for this USB port, is it a hardware design issue? please search "VBUSB" in schematic, how do you workaround this issue?

thanks,
Yuping Zhang

ESP_Sprite
Posts: 9730
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3-DevKitC-1 USB port doesn't have power 5V

Postby ESP_Sprite » Tue Mar 14, 2023 12:28 am

VBUSB goes to the 5V line via D7. If you're not seeing 5V, perhaps you blew up that diode somehow?

username
Posts: 534
Joined: Thu May 03, 2018 1:18 pm

Re: ESP32-S3-DevKitC-1 USB port doesn't have power 5V

Postby username » Tue Mar 14, 2023 2:26 am

ESP_Sprite, he is saying if you plug in a USB device into the kit, J4 does not supply power to that port.
If he's going to plug in a device into J4 he could jumper across D7.

ESP_Sprite
Posts: 9730
Joined: Thu Nov 26, 2015 4:08 am

Re: ESP32-S3-DevKitC-1 USB port doesn't have power 5V

Postby ESP_Sprite » Tue Mar 14, 2023 7:04 am

Ah, 'username' is correct, sorry, I misread.

yupingzhang2005
Posts: 10
Joined: Sat Feb 18, 2023 6:22 pm

Re: ESP32-S3-DevKitC-1 USB port doesn't have power 5V

Postby yupingzhang2005 » Tue Mar 14, 2023 7:00 pm

Hi, just let you know this is a design issue, your competitor uses SR-0805 part instead of Diode D7 to solve this problem. For me, I have no more issues, please close this ticket!

thanks,
Yuping Zhang

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