ESP32 Forum

Posted: **Sat Apr 27, 2024 7:15 pm**

I'm creating a Board with an ESP32 S3.
Is there a comprehensive guide to handle the IO0 and EN pins in a way so that I can get in and out of boot mode via software? I know the dev boards do it, but honestly i'm just lacking the right search terms.
Greatful for any help!

Posted: **Sat Apr 27, 2024 9:33 pm**

Search for ESP32 DTR RTS, see e.g. here:
https://docs.espressif.com/projects/esp ... bootloader

Posted: **Sat Apr 27, 2024 9:49 pm**

do i read this correctly that I would have to add a CP2102 to my design?

Posted: **Sat Apr 27, 2024 10:15 pm**

yes. Or use external cp2102 or CH340 module (from ebay/aliexpress)

Posted: **Sun Apr 28, 2024 6:46 am**

hdsjulian2 wrote: ↑
Sat Apr 27, 2024 9:49 pm
do i read this correctly that I would have to add a CP2102 to my design?

Either that, or you connect to the built-in USB CDC/JTAG of the S3, if USB isn't in use by the application already.

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