ESP32 Forum

Posted: **Sat Sep 19, 2020 2:59 am**

Can the analog inputs IO34, 35, 36 and 39 on WROOM32 be used for Interrupt, MISO and UART RXD functions?
I suspect that apart from needing pull-up resistors, these all provide full input functionality and any of the other GPIO?

Thanks

Posted: **Sun Sep 20, 2020 7:33 am**

Posted: **Sun Sep 20, 2020 7:37 am**

Thanks

Posted: **Fri Nov 11, 2022 7:58 am**

ESP_Sprite wrote: ↑
Sun Sep 20, 2020 7:33 am
Yes.

Hi
I have connected a toggle transistor at pin 34. I have to send out control voltage out.
Can I use this as control pin?

Posted: **Sun Nov 13, 2022 1:10 pm**

This is on an ESP32 (not -S2, S3, C3 etc)? If so, no; GPIO34 is input-only.

ESP32 Forum

Use of inputs IO34,35,36 and 39

Use of inputs IO34,35,36 and 39

Re: Use of inputs IO34,35,36 and 39

Re: Use of inputs IO34,35,36 and 39

Re: Use of inputs IO34,35,36 and 39

Re: Use of inputs IO34,35,36 and 39