Custom ESP32-S3 Board USB Not Working

AveryLion03
Posts: 5
Joined: Fri Feb 28, 2025 12:08 am

Custom ESP32-S3 Board USB Not Working

Postby AveryLion03 » Fri Feb 28, 2025 12:29 am

Hello!

I have made a custom board using an ESP32-S3 for a school project. I have created the functionality to use both a battery and a USB port to power the ESP (the schematic is below). So far, I have been testing with the USB port, however, I am not able to recognize my ESP32-S3 in my device manager (nothing shows up). I have power (I have power LEDs), however, I don't see anything really on the data lines for the USB port. The USB cable I am using works with all other devices I have plugged into it.

Can someone help me identify the issue?

Thanks!

The schematic is attached as a pdf.

Please let me know what might seem off with my current circuit.

Best,
Avery
Attachments
Schematic_HearingAid.pdf
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lbernstone
Posts: 1132
Joined: Mon Jul 22, 2019 3:20 pm

Re: Custom ESP32-S3 Board USB Not Working

Postby lbernstone » Sat Mar 01, 2025 7:46 am

You missed the included circuit. It slows the boot down a bit until your EN pin voltage stabilizes.
Screenshot from 2025-02-28 12-25-23.png
Screenshot from 2025-02-28 12-25-23.png (9.89 KiB) Viewed 2673 times
You should also put ESDs on the USB pins to prevent damage to your computer (or the ESP32, but that's only $2).

AveryLion03
Posts: 5
Joined: Fri Feb 28, 2025 12:08 am

Re: Custom ESP32-S3 Board USB Not Working

Postby AveryLion03 » Sat Mar 01, 2025 5:19 pm

Ah, I see.

Thanks for the help!!

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