The `!Seed Studio XIAO ESP32-S3`! is a microcontroller board based around the ESP32-S3 microcontroller. It is typically connected to a `F0af`_`[Wio-SX1262`:/page/wiki.mu`path=Wio-SX1262]`_`f LoRa module to enable long-range wireless communication.

>>Contents

• `F0af`_`[Firmware`#firmware]`_`f

• `F0af`_`[Power`#power]`_`f

• `F0af`_`[Issues`#issues]`_`f

• `F0af`_`[References`#references]`_`f

• `F0af`_`[External links`#external-links]`_`f

>>Firmware

The XIAO ESP32-S3 is supported by the official `F0af`_`[RNode`:/page/wiki.mu`path=RNode]`_`f firmware as of version 1.82.`:cite-ref-1[`F5bf`_`[1`#cite-note-1]`_`f] It is also supported by the `F0af`_`[microReticulum`:/page/wiki.mu`path=MicroReticulum]`_`f firmware as of version 1.85.10.`:cite-ref-2[`F5bf`_`[2`#cite-note-2]`_`f]

>>Power

Like most other microcontroller boards, the XIAO can be powered through its USB port. It can also receive 5 V power directly through its VBUS pin, so long as a diode is placed between the power source and the pin.`:cite-ref-wiki-3-0[`F5bf`_`[3`#cite-note-wiki-3]`_`f]

It also features solder pads on the back of the board for connecting a standard 3.7 V Li-ion or LiPo battery. These pads are very small, so a soldering iron with a fine tip is required. The small size of the pads also poses the risk of short-circuiting the battery. Shorting an unprotected Lithium battery can result in a fire, so a protected battery should always be used.

When connected to 5 V power, the XIAO charges batteries at 50 mA by default. It also supports a trickle charging current of 3.8 mA.`:cite-ref-wiki-3-1[`F5bf`_`[3`#cite-note-wiki-3]`_`f]

>>Issues

Flashing the XIAO ESP32-S3 with RNode firmware can be inconsistent. The reset button may have to be manually pressed when the device is meant to automatically reset on its own during the flashing process. There are also different versions of the board, which may affect the flashing process. Some users have reported that flashing the device with Meshtastic's web flasher followed by an `F0af`_`[RNode flasher`:/page/wiki.mu`path=RNode|anchor=flashing]`_`f can occasionally solve some issues.

>>References

`:cite-note-1`!1.`! `F0af`_`[↑`#cite-ref-1]`_`f "Release 1.82".

`:cite-note-2`!2.`! `F0af`_`[↑`#cite-ref-2]`_`f "Release 1.85.10".

`:cite-note-wiki-3`!3.`! `F0af`_`[↑`#cite-ref-wiki-3-0]`_`f "Getting Started with Seeed Studio XIAO ESP32-S3 Series".

>>External links

`!Official Store`!

• Seeed Studio XIAO ESP32-S3

• XIAO ESP32S3 & Wio-SX1262 Kit

`!Technical Information`!

• Official wiki

• Hardware repository

>>Seeed Studio XIAO ESP32-S3

`!Manufacturer:`! Seeed Technology

`!Type:`! Microcontroller board

`!Price:`! US$7.49

`!MCU:`! ESP32-S3R8

`!CPU:`! Xtensa LX7 @ 240 MHz

`!Memory:`! 512 kB SRAM 8 MB PSRAM 8 MB Flash

`!Power source:`! 5 V USB Type-C 3.7 V Li-ion Battery

`!Dimensions:`! 21.0 × 17.8 mm

`!Open hardware?:`! Yes

`!License:`! CC BY-SA 4.0

`!Related:`! `F0af`_`[XIAO nRF52840`:/page/wiki.mu`path=XIAO_nRF52840]`_`f

>>>Bluetooth LE

`!Transceiver IC:`! ESP32-S3R8

`!PHY modes:`! 2M, Coded

`!Output power:`! 20 dBm (100 mW)

`!Sensitivity:`! -98 dBm @ 1 Mbps

`!Antenna type:`! Shared External u.FL

>>>2.4 GHz Wi-Fi

`!Transceiver IC:`! ESP32-S3R8

`!PHY modes:`! IEEE 802.11b/g/n

`!Output power:`! 21 dBm (125 mW)

`!Sensitivity:`! -98 dBm @ 1 Mbps

`!Antenna type:`! Shared External u.FL