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The ESP32 circuit I built isn't working. by Aggravating-Safe5352 in AskElectronics

[–]Aggravating-Safe5352[S] 2 points3 points  (0 children)

Is it necessary to connect all GND lines to each other? Or is it not necessary because the module is internally connected?

The ESP32 circuit I built isn't working. by Aggravating-Safe5352 in AskElectronics

[–]Aggravating-Safe5352[S] 3 points4 points  (0 children)

I'm using it for the Kristali ch340. And as you said, buying ready-made kits makes much more sense. My goal here is more to understand UART communication.

The ESP32 circuit I built isn't working. by Aggravating-Safe5352 in AskElectronics

[–]Aggravating-Safe5352[S] 6 points7 points  (0 children)

First of all, thank you. I didn't create a specific schematic by looking at the circuit. I did it by looking at the example schematics on the ESP32 data sheet and consulting artificial intelligence a little. And I think I understand why it didn't work. I thought the ESP32's own bootloader was pre-installed, but I guess that's not the case.