Need help to get default state of unused IO pads for ESP32 modules

Ritesh
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Need help to get default state of unused IO pads for ESP32 modules

Postby Ritesh » Fri Apr 27, 2018 7:34 pm

Hi Espressif Systems Developer,

We have started to use ESP32 SoC as well as ESP32 based modules into different product which are running successfully.

Now, I have one question like what is the default state of unused GPIO or IO pads into module itself?

Let's take one example like there is one IO3 which I haven't used into my product then what will be the default state means HIGH or LOW and input or output direction.

So, I just want to get I formation regard that so that I need to configure it from software side if state is tristate or not fixed
Regards,
Ritesh Prajapati

WiFive
Posts: 3529
Joined: Tue Dec 01, 2015 7:35 am

Re: Need help to get default state of unused IO pads for ESP32 modules

Postby WiFive » Sat Apr 28, 2018 1:12 am

Look at datasheet appendix A you can see that io3 has input mode with weak pull-up and default function is u0rxd

Ritesh
Posts: 1365
Joined: Tue Sep 06, 2016 9:37 am
Location: India
Contact:

Re: Need help to get default state of unused IO pads for ESP32 modules

Postby Ritesh » Sat Apr 28, 2018 6:36 pm

WiFive wrote:Look at datasheet appendix A you can see that io3 has input mode with weak pull-up and default function is u0rxd
Thanks for Reply.

I will check and will let you know if any query regarding that.
Regards,
Ritesh Prajapati

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