Problem with custom PCB with ESP32 WROOM E and sketch uploading

[Peanut_Butcher]

@username
Ok. Here is my updated schematic.

Capture d'écran 2024-12-08 101124.png (144.47 KiB) Viewed 1191 times

I added capacitors, as you said. I guess this is for voltage stability purposes.

Can you confirm my schematic seems correct ?

[username]

Not that way. For the AMS1117 parallel both caps and place one end of both caps to pin3, and the other to gnd.
Then do the same on pin 2 with the other 2 caps.
For the CH340 pin 16 you have the 4.7uf wired ok, just place the 0.1uf cap parallel with it.

This is the idea.

[Peanut_Butcher]

@username
I think I understood what you mean. Here is my newly updated schematic. Do you see any failure ?

Capture d'écran 2024-12-08 123637.png (160.42 KiB) Viewed 1137 times

[username]

You got it. If you still have troubles I would try changing out the 4.7uf on the EN RC network to something like a 0.1uf.

[Peanut_Butcher]

@ESP_Sprite and @username
Perfect, thanks a lot to both of you for your support and helpful answers. I will keep you informed about the situation when my new board arrives !



EDIT : The new board arrived and all is working perfectly. Thanks to you guys !