> For the complete documentation index, see [llms.txt](https://docs.microside.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.microside.com/en/user-manuals/xide/x-board/xb15-xiao.md).

# XB15 - XIAO

<figure><img src="/files/U263nniFRAIxfJd2bjpT" alt=""><figcaption></figcaption></figure>

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center"><strong>Buy</strong></td><td><a href="https://www.microside.com/shop/x-board-xiao-112">https://www.microside.com/shop/x-board-xiao-112</a></td></tr></tbody></table>

**X-BOARD XIAO** is an expansion board designed to bring compatibility to [**Seeed Studio**](https://www.seeedstudio.com/)’s [**XIAO**](https://www.seeedstudio.com/xiao-series-page) development boards and It’s [**Grove**](https://wiki.seeedstudio.com/Grove_System/) ecosystem with **X-NODE**’s or [**Click Boards™**](https://www.mikroe.com/click-boards), allowing swift evaluation of sensors, actuators or communication modules. Ideal for prototyping and building electronic projects in an easy, compact and highly extendable fashion with other popular development standards like [**Grove**](https://wiki.seeedstudio.com/Grove_System/), [**mikroBUS™**](https://www.mikroe.com/mikrobus) and [**Qwiic®**](https://www.sparkfun.com/qwiic). It carries a single socket for [**XIAO**](https://www.seeedstudio.com/xiao-series-page)’s development boards, two JST connectors, three [**mikroBUS™**](https://www.mikroe.com/mikrobus) sockets and one single row 40 female pin header.

### TABLE OF CONTENTS

1. [**How does it work?**](#i.-how-does-it-work)
2. [**Layout**](#ii.-layout)
3. [**Specification**](#iii.-specification)
4. [**Downloads**](#iv.-downloads)
   * [**Schematic**](https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FwdUmuRaMzmibBUKMkDR3%2FSCHEMATIC%20X-BOARD%20XIAO.pdf?alt=media\&token=8247e1bd-4208-4ebd-a9bd-95d903150732)
   * [**Dimensions**](https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FMxfXTjEpd81iKWPcI0iE%2FDIMENSIONS%20X-BOARD%20XIAO%20XB15.PDF?alt=media\&token=7b94b3a3-5a4d-43fb-9e29-6e76070eaa90)

## I. How does it work?

**X-BOARD XIAO** allows ease of communication between [**Seeed Studio**](https://www.seeedstudio.com/)’s [**XIAO**](https://www.seeedstudio.com/xiao-series-page) development boards with X-NODE’s or [**Click Boards™**](https://www.mikroe.com/click-boards), or any other development tool that integrates [**mikroBUS™**](https://www.mikroe.com/mikrobus) pinout standard, just insert the board into one the available sockets.  It has two JST connectors compatible with [**Qwiic®**](https://www.sparkfun.com/qwiic) standard, be aware that the logic level is 3.3V, it also features 4 connectors compatible with [**Grove**](https://wiki.seeedstudio.com/Grove_System/) ecosystem making it compatible with a wide variety of development modules by [**Seeed Studio**](https://www.seeedstudio.com/). Finally, it features a single row 40 pin female header to access every single one the pins of any socket, this allows an easy access to all signal for analyzing, debugging, and testing.

**X-BOARD XIAO** is compatible with [**XIAO**](https://www.seeedstudio.com/xiao-series-page) and [**Grove**](https://wiki.seeedstudio.com/Grove_System/) standards from [**Seeed Studio**](https://www.seeedstudio.com/), [**Mikroe®**](https://www.mikroe.com/)’s [**mikroBUS™**](https://www.mikroe.com/mikrobus) and [**SparkFun®**](https://www.sparkfun.com/)’s [**Qwiic®**](https://www.sparkfun.com/qwiic), enabling ease of integration between multiple modules and development boards.

## II. Layout

<figure><img src="/files/oovJWIHlOqwXu6xP4KrD" alt=""><figcaption></figcaption></figure>

1. [**mikroBUS™**](https://www.mikroe.com/mikrobus) socket
2. 4-pin JST [**Qwiic®**](https://www.sparkfun.com/qwiic) connectors
3. Single row 40 pin female header to access every single pin of [**mikroBUS™**](https://www.mikroe.com/mikrobus) sockets
4. X-BOARD model
5. [**Seeed Studio**](https://www.seeedstudio.com/)'s [**XIAO**](https://www.seeedstudio.com/xiao-series-page) compatible connector
6. [**Seeed Studio**](https://www.seeedstudio.com/)'s [**Grove**](https://wiki.seeedstudio.com/Grove_System/) compatible connector
7. Hardware revision: R1

## III. Specification

<table data-header-hidden><thead><tr><th width="219"></th><th></th></tr></thead><tbody><tr><td><strong>Model</strong></td><td>XIAO</td></tr><tr><td><strong>Add-on Compatibility</strong></td><td><a href="https://www.seeedstudio.com/xiao-series-page">XIAO</a> boards, X-NODEs and <a href="https://www.mikroe.com/click-boards">Click Boards™</a></td></tr><tr><td><strong>Standards</strong></td><td><a href="https://wiki.seeedstudio.com/Grove_System/">Grove</a>, <a href="https://www.mikroe.com/mikrobus">mikroBUS™</a> and <a href="https://www.sparkfun.com/qwiic">Qwiic®</a></td></tr><tr><td><strong>Key features</strong></td><td>Single socket <a href="https://www.seeedstudio.com/xiao-series-page">XIAO</a> compatible, three <a href="https://www.mikroe.com/mikrobus">mikroBUS™</a> sockets, 2x JST connectors <a href="https://www.sparkfun.com/qwiic">Qwiic®</a> Connect System compatible, 4x connectors <a href="https://wiki.seeedstudio.com/Grove_System/">Grove</a> ecosystem compatible, single row 40 pin female header (2.54mm pitch).</td></tr><tr><td><strong>Dimensions</strong></td><td>102.11 x 71.63 x 14 mm</td></tr><tr><td><strong>Voltage</strong></td><td>3.3 V</td></tr></tbody></table>

## IV. Downloads

<table data-card-size="large" data-view="cards"><thead><tr><th align="center"></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td align="center"><strong>Schematic</strong></td><td><a href="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FwdUmuRaMzmibBUKMkDR3%2FSCHEMATIC%20X-BOARD%20XIAO.pdf?alt=media&#x26;token=8247e1bd-4208-4ebd-a9bd-95d903150732">https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FwdUmuRaMzmibBUKMkDR3%2FSCHEMATIC%20X-BOARD%20XIAO.pdf?alt=media&#x26;token=8247e1bd-4208-4ebd-a9bd-95d903150732</a></td></tr><tr><td align="center"><strong>Dimensions</strong></td><td><a href="https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FMxfXTjEpd81iKWPcI0iE%2FDIMENSIONS%20X-BOARD%20XIAO%20XB15.PDF?alt=media&#x26;token=7b94b3a3-5a4d-43fb-9e29-6e76070eaa90">https://files.gitbook.com/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FwzhjxMFtAHZqHlRBU68T%2Fuploads%2FMxfXTjEpd81iKWPcI0iE%2FDIMENSIONS%20X-BOARD%20XIAO%20XB15.PDF?alt=media&#x26;token=7b94b3a3-5a4d-43fb-9e29-6e76070eaa90</a></td></tr></tbody></table>