ESP32 + CP2102

macekj
Posts: 1
Joined: Fri Apr 25, 2025 5:22 am

ESP32 + CP2102

Postby macekj » Fri Apr 25, 2025 5:32 am

Hello,
I have a problem uploading a program to esp32 with cp2102 over Arduino. (picture in attachments)


I tried holding the boot button and then releasing it but it didn't help. Could someone take a look at the schematic? I guess there must be a mistake in that.

Thank for any help.
Attachments
esp.png
esp.png (146.63 KiB) Viewed 132 times
arduino.png
arduino.png (16.57 KiB) Viewed 132 times

lbernstone
Posts: 1132
Joined: Mon Jul 22, 2019 3:20 pm

Re: ESP32 + CP2102

Postby lbernstone » Fri Apr 25, 2025 4:52 pm

If you want TX and RX to have activity lights, put them directly in line. As you have it, the lines are being pulled up. You can remove the LEDs or those resistors to test it (or cut the traces).

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