# ProS3 ESP32-S3 Dev board (CE08579)

**URL:** <https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074>\
**Category:** Product Questions\
**Created:** [16 March 2025 20:20 UTC](https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074 "2025-03-16T20:20:31Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![Core](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/core/32/57_2.png) [@Core](https://forum.core-electronics.com.au/u/Core)\
**Post date:** [16 March 2025 20:20 UTC](https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074/1 "2025-03-16T20:20:31Z")

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This is a placeholder topic for [**“ProS3 ESP32-S3 Dev board”**](https://core-electronics.com.au/pros3-esp32-s3-dev-board-1.html) comments.

![](https://core-electronics.com.au/media/catalog/product/cache/5ba536955e3e815f4e908e49c1dd8155/C/E/CE08579-3.jpg)

Introducing the ProS3 - The Ultimate Pro ESP32-S3 Development Board  
Ships with a set of male headers you can solder on if required.  
Each ProS3 ships…

[**Read more**](https://core-electronics.com.au/pros3-esp32-s3-dev-board-1.html)

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**Author:** ![J.a.m.e.s](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/j.a.m.e.s/32/11068_2.png) [@J.a.m.e.s](https://forum.core-electronics.com.au/u/J.a.m.e.s)\
**Post date:** [16 March 2025 20:20 UTC](https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074/2 "2025-03-16T20:20:32Z")

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What is the max input/output voltage on the GPIO pins?

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**Author:** ![Jeff105671](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/jeff105671/32/3729_2.png) [@Jeff105671](https://forum.core-electronics.com.au/u/Jeff105671)\
**Post date:** [16 March 2025 21:29 UTC](https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074/3 "2025-03-16T21:29:21Z")

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The ESP32-S3 is a 3.3V device. The voltage applied to a GPIO pin should never exceed VDD + 0.3V, or 3.6V for a 3.3V supply. The minimum should never be less than -0.3V.

[esp32-s3\_datasheet\_en.pdf](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf) (Section 5 Page 63)

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**Author:** ![Samuel](https://yyz2.discourse-cdn.com/flex028/user_avatar/forum.core-electronics.com.au/samuel/32/11763_2.png) [@Samuel](https://forum.core-electronics.com.au/u/Samuel)\
**Post date:** [17 March 2025 00:34 UTC](https://forum.core-electronics.com.au/t/pros3-esp32-s3-dev-board-ce08579/22074/4 "2025-03-17T00:34:40Z")

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Hey @J.a.m.e.s,

@Jeff105671 is correct in his answer. If you want a bit more information that datasheet Jeff linked contains a bit more information in [section 5.1 (Page 63)](https://www.espressif.com/sites/default/files/documentation/esp32-s3_datasheet_en.pdf).