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Feature

 
  • Versatile Microcontroller: Incorporate the Nordic nRF52840 chip with FPU, operating up to 64 MHz, mounted multiple development ports, supported by Arduino / CircuitPython / Micropython
  • Wireless Capabilities: Implement Bluetooth Low Energy 5.4, BLE functions with onboard antenna, also provide NFC connectivity
  • Elaborate Power Design: Provide ultra-low power consumption as 5 μA in deep sleep mode while supporting lithium battery charge management
  • Thumb-sized Design: 21 x 17.8mm, Seeed Studio XIAO series classic form-factor, suitable for wearable devices
  • Perfect for Production: Breadboard-friendly & SMD design, no components on the back

 

Production-Ready Design with Fusion PCBA Support

All Seeed Studio XIAO dev boards feature a production-optimized SMD (Surface Mount Device) design with standardized stamp holes, making it perfect for commercial PCBA (Printed Circuit Board Assembly) integration. With our Seeed Studio Fusion services, you can access competitive one-stop PCB fabrication, component sourcing, assembly, and testing, plus free DFA/DFM review to reduce manufacturing risks and accelerate the journey from prototype to production.

Note

XIAO SoM User Manual open-sources all hardware and software materials of XIAO, providing professional product design guidelines to help you accelerate ideas off the ground, streamline product design, providing a seamless experience from module selection to mass production. You can check here to see more info. 

 

Starter Kit with free Course for all Electronics Neophytes and Enthusiasts

Seeed Studio has provided the Grove Starter Kit along with free and detailed courses for you quickly get started with microcontrollers and electronics, regarding all the Seeed Studio XIAO boards, promising you a great learning experience. Not only programming but also electronics knowledge is not required, you will be taken step by step, from understanding the basic concepts to exercising the simple projects individually, finally being able to build complex, interesting, wearable projects on your own, owing a practical electronic product prototype from the course.

You can have access to the Seeed Studio Grove ecosystem by connecting it to the compatible Seeed Studio XIAO expansion board. We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. For example, you can make a BLE AI-driven Smartwatch Detecting Potential Sun Damage by connecting the Seeed Studio XIAO nRF52840 with an expansion board, and a Grove - UV Sensor. Get started and explore the infinite possibilities of the Seeed Studio XIAO series!

If you are interested in programming embedded machine learning, we have Codecraft visual programming that can help you quickly start your own TinyML project. And we have set up a #tinyml channel on our Discord server, please click to join for 24/7 making, sharing, discussing, and helping each other out.

 

We already have 15 XIAO dev boards based on different chipset solutions in the XIAO family, to help you better understand the differences and choose the most suitable part for your projects, please refer to the Seeed Studio XIAO Series Page.

Specification

To better support IoT and TinyML AI projects, there is an advanced version "Seeed Studio XIAO nRF52840 Sense" that carries an extra 6-axis IMU and a PDM microphone.

 

Item

Seeed Studio XIAO nRF52840

Seeed Studio XIAO nRF52840 Sense

Processor

Nordic nRF52840

ARM® Cortex®-M4 with FPU runs up to 64 MHz

Wireless

Bluetooth Low Energy 5.4/Bluetooth mesh/NFC

On-chip Memory

1 MB flash and 256 kB RAM

Onboard Memory

2 MB QSPI flash

Interface

1xUART

1xIIC

1xSPI

1xNFC

1xSWD

11xGPIO(PWM)

6xADC

Sensors

/

 1xOnboard PDM digital microphone

 1xOnboard 6-axis IMU

Dimensions

21 x 17.8mm

Power(Typ.)

Circuit operating voltage: 3.3V@200mA

Charging current: 50mA/100mA

Input voltage (Type-C): 5V

Input voltage (BAT): 3.7V

Standby power consumption: 5μA

 

Hardware Overview

 

Attention:

All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise, the CPU may be damaged.

  • Onboard

  • PinOut

  • Back

Application

 

  • Wearable devices
  • Wireless connect
  • Embedded machine learning projects
  • Perfect for mini Arduino projects
  • Tiny Machine Learning application

 

 

Certification

HSCODE8517180050
USHSCODE8517180050
UPC841454123514
EUHSCODE8543709099
COOCHINA

Part List

Seeed Studio XIAO nRF52840 (pin not included)

x1

7 Pin Header

x2

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Seeed Studio XIAO nRF52840 (XIAO BLE)

SKU 102010448

Seeed Studio XIAO nRF52840 by Nordic is carrying wireless capability for the first time and it supports Bluetooth Low Energy 5.4, also able to operate with low power consumption. It will be your best microcontroller for Bluetooth applications.

XIAO Dev Board
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Package
USD$9.90
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