Hi,

I’m using a pre‑certified ESPRESSIF ESP32-C3-WROOM-02-N4 in a product. Firmware currently enables BLE, and only starts a Wi‑Fi access point when OTA update is needed. The Firmware doesn’t set country, channel range, or transmit‑power explicitly.

Questions:

- For selling in multiple regions ...

That would work. If you're developing that anyway (and have enough GPIOs free), also put EN, RX and TX on that connector, in case the contract manufacturer prefers serial over USB. Also, if you're interested, Espressif also sells ESP32 modules preprogrammed with your firmware of choice (if you buy ...

For the USB-serial-JTAG converter you don't need an external reset circuit, the thing implements that internally. Your schematic as it is should be good to go. You do want to make sure you make GPIO9 accessible from somewhere, as you want to be able to put the chip into download mode manually for ...

I guess you already found the answer

Not really.

I made a research before coming here. some say that there is an auto-reset circuit, and you don't need to hold the BOOT button at all, others insist that you need to press BOOT at power-on/reset.

Hello,

I am designing a Basic PCB at the moment using the ESP32-C3-WROOM-02-N4

I am wondering, how to design the board in such a way, that I am able to upload my code without pressing the boot and enable buttons (without using an external USB to Serial CP2102 or similar) ?

Attached: Schematic ...