GPIO 9 and 10 (Pin D2 and D3) usability for UART

[rammkumar]

Hello. Is there any software or hardware changes that I can do to use GPIO 9 and GPIO 10 (Pin D2 and D3) for UART ? When I program the esp32-wroom-32 DEVKIT-C to use pin 9 and 10 for UART, the controller starts resetting continuously . I need to use the third uart in my project, so I will be glad to know if there is any way to use it .

PS: I am aware of the fact that GPIO 9 to 10 are not recommended to use as per the datasheet. Would like to know if there is away that i can achieve this by modifying anything - hardware or software wise.

Thanks

[ESP_Sprite]

You can re-route any UART to use any GPIO (but do consider the fact that some are input-only, and the fact that some indeed are used for flash), so there's no need to use exactly these pins.

[zliudr]

Hi Ramm, aren't these pins for internal flash use for wrover modules? (could that be true with wroom as well?). Just in the slight case you will upgrade to wrover, it's a good idea to stay clear GPIO7 thru 11.