Quick answer

XIAO nRF52840 Sense is a development board from Seeed Studio, listed under IoT. It uses the nRF52840 on a nRF52 core. It carries 1MB flash, 256KB RAM, 11 GPIO. Official framework support: Arduino, MicroPython, CircuitPython. The sensing variant of the nRF52840 XIAO with a six-axis IMU and PDM microphone for motion and audio projects.

Vendor
Seeed Studio
Architecture
nRF52
MCU
nRF52840
Clock
64MHz
Flash
1MB
RAM
256KB
GPIO
11
Current draw
5V / 3.7V BAT
Focus
IoT

Common questions

What is the XIAO nRF52840 Sense development board?

XIAO nRF52840 Sense is a development board from Seeed Studio, listed under IoT. It uses the nRF52840 on a nRF52 core. It carries 1MB flash, 256KB RAM, 11 GPIO. Official framework support: Arduino, MicroPython, CircuitPython. The sensing variant of the nRF52840 XIAO with a six-axis IMU and PDM microphone for motion and audio projects.

What MCU and instruction architecture does XIAO nRF52840 Sense use?

nRF52840 on a nRF52 core.

How much flash and RAM does XIAO nRF52840 Sense have?

It carries 1MB flash, 256KB RAM, 11 GPIO.

What kind of projects is XIAO nRF52840 Sense meant for?

ZouIC lists it under IoT, with official framework support for Arduino, MicroPython, CircuitPython.

How much power does XIAO nRF52840 Sense draw?

The listed figure is 5V / 3.7V BAT.

Where can I find official material for XIAO nRF52840 Sense?

See the official community at https://wiki.seeedstudio.com/XIAO_BLE/; the purchase page at https://www.seeedstudio.com/Seeed-XIAO-BLE-Sense-nRF52840-p-5253.html.

Seeed Studio
nRF52Seeed StudioCheck official channels

XIAO nRF52840 Sense

The sensing variant of the nRF52840 XIAO with a six-axis IMU and PDM microphone for motion and audio projects.

Quick specs

From vendor docs
64MHzSpeed
11GPIO
1MBFlash
256KBRAM
Chip modelnRF52840
Power5V / 3.7V battery

Peripherals

BLE 5.4
6-axis IMU
PDM microphone
NFC

Frameworks

Arduino
MicroPython
CircuitPython

Technical Specifications

Processor info

Chip ArchitecturenRF52
VendorSeeed Studio
Chip modelnRF52840
Clock speed64MHz

Storage and memory

Flash1MB
RAM256KB
GPIO count11pcs
Power5V / 3.7V battery

Official links and data notes

Specifications are compiled from public vendor materials for selection reference only. Licenses for hardware design files and documentation are determined by the vendor or project owner; ZouIC does not grant them.

Last verified 2026-10-28

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