ESP32 PCB design check.?

Thread Starter

DS2021

Joined Oct 15, 2021
5
This is my first PCB, and I would like someone to look over the PCB design I currently have and let me know if there are any obvious errors that have been made.
Thanks!
 

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Jon Chandler

Joined Jun 12, 2008
26
A couple comments from looking at the schematic.

You need a 100nF cap between Vcc and ground for the CH340.

The LM317 can't/won't regulate the 5 volt Vusb to 5 volts. It must have some overhead to work. This regulator shouldn't be needed.
 

Thread Starter

DS2021

Joined Oct 15, 2021
5
A couple comments from looking at the schematic.

You need a 100nF cap between Vcc and ground for the CH340.

The LM317 can't/won't regulate the 5 volt Vusb to 5 volts. It must have some overhead to work. This regulator shouldn't be needed.
Hello, thanks for the reply, here are the changes made, please let me know if you see anything else that would be wrong, I added an option for 4 pin motors to be attached in the future.
 

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stasbala

Joined May 24, 2021
6
ESP32 Modules recommend that you have a board cutout underneath the antenna area. I don't have experience with your CAD system but I don't see any indication of this.

I would recommend giving the datasheet for your part, and it's technical references another look through as they do provide some design guidelines for the pcb layout in regards to the ESP32 modules.
 
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