ESP32-WROVER-IE Module UART Unstable output

[komal_dabhade]

We have purchased ESP32-WROVER-IE Module, we are willing to interface 3 UART communication sensors to following module but observed issues of unstable output on following pins i.e 16, 17, 35, 34, 25, 27, 18, 19. Please suggest pins for UART communication.

[ESP_Sprite]

I assume you mean GPIO numbers in the list you mentioned:

> 16, 17,
those are used by the PSRAM; you can't use those.

> 35, 34,
Those are input-only and can't be used as outputs

> 25, 27, 18, 19
Those should work fine; what issue do you see with these?