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PRODUCT DETAILS

Seeed Studio XIAO nRF52840 featuring Nordic nRF52840 MCU supports Bluetooth 5.0 & NFC and is Arduino-compatible. With its exquisite design, Bluetooth and built-in Type-C, it's perfect for TinyML, smart wearable devices, and IoT projects.

Features

  • Powerful CPU(Nordic nRF52840): ARM® Cortex™-M4 32-bit processor with FPU operating at 64 MHz
  • Low Power Consumption and Prolonged Use Time:  5 μA, deep sleep model and Support lithium battery charge management
  • Ultra-small size: 21 x 17.5mm, Seeed Studio XIAO series classic form-factor for wearable devices
  • Various Wireless Connectivity Options: Support Bluetooth 5.0, NFC, and ZigBee module with onboard antenna
  • Multiple interfaces: 1x Reset button, Ix UART, 1x IIC, 1x SPI, 1x NFC, 1x SWD, 11x GPIO, 6x ADC, 1x Three-in-one LED,1x User LED
  • Designed for production: Breadboard-friendly & SMD design, no components on the back
  • Comprehensive certificates: CE | FCC | MIC

 

Seeed Studio XIAO nRF52840 has an ultra-low power consumption of only 5 μA in the deep sleep mode, the embedded BQ25101 chip supports battery charge management which prolongs its use time. Moreover, Seeed Studio XIAO nRF52840 supports the USB Type-C interface which can supply power and download code. It also has rich On-chip Memory of 1 MB flash and 256 kB RAM, and an Onboard Memory of 2 MB QSPI flash. There are 11 digital i/o that can be used as PWM pins and 6 analog i/o that can be used as ADC pins. It supports UART, IIC, and SPI all three common serial ports. 1 Reset button, 1 3-in-one LED, 1 Charge LED, and 1 Bluetooth antenna are on board, allowing developers to debug their code very easily. 

The powerful performance makes it perfect for machine learning applications, and the tiny size allows it to be used in wearable devices and Internet of Things projects, not just for prototypes but the mass production. Furthermore, Seeed Studio XIAO nRF52840 is friendly to the communities for its strong software compatibilities, which supports Arduino, Micropython, and CircuitPython. Except for the software, flexible I/O allows it to speak to almost any external device.

To provide a more smoothed learning experience for beginners, we have prepared a free course based on the Starter Kit for Seeed Xiao which contains 4 Units and 16 lessons to help you quickly get started with development boards, and then you can proceed to realize little and individual fun projects.

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 5 XIAO products based on different 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

  The same as Seeed Studio XIAO nRF52840

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

  Wireless

  Bluetooth 5.0/NFC/Zigbee

  The same as Seeed Studio XIAO nRF52840

  On-chip Memory

  1 MB flash and 256 kB RAM

  The same as Seeed Studio XIAO nRF52840

  Onboard Memory

  2 MB QSPI flash

  The same as Seeed Studio XIAO nRF52840

  Interface

  1xUART, 1xIIC, 1xSPI, 1xNFC, 1xSWD,

  The same as Seeed Studio XIAO nRF52840

  11xGPIO(PWM), 6xADC

  Sensors

 

  Onboard PDM digital microphone

  Onboard 6-axis IMU

  Dimensions

  21 x 17.5mm

  The same as Seeed Studio XIAO nRF52840

   Power

  Circuit operating voltage: [email protected]

  The same as Seeed Studio XIAO nRF52840

  Charging current: 50mA/100mA

  Input voltage (VIN): 5V

  Standby power consumption:  <5μA

 

Application

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

 

Co-invent with Seeed

Seeed Fusion is launching a DIY XIAO Mechanical Keyboard Contest based on Seeed Studio XIAO Series! Show us your XIAO keyboard creations for a chance to win $1000 in prizes and Seeed XIAO Pillows!!! To join the contest.

 

Hardware Pinout

Attention:

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

 

Part List

Seeed Studio XIAO nRF52840 x1
7 Pins Header x2

 

 

ECCN/HTS

HSCODE 8543709990
USHSCODE 8471490000
UPC

LEARN AND DOCUMENTS

Learn

[Wiki] XIAO BLE
This wiki will help you quickly get started with Seeed XIAO BLE.
On this page, the user provides a tutorial about controlling a WS2812B LED strip to make it shine in different colors with the XIAO BLE.
Get to know Wio Terminal TinyML Course #7 Machine Learning on ARM Cortex M0+ MCU Seeeduino XIAO and XIAO RP2040
The RP2040 is a 32-bit dual ARM Cortex-M0+ microcontroller integrated circuit by Raspberry Pi Foundation.
Wonder how you can pair and control your Arduino Board with Bluetooth? If so, you’re in the right place!
Have space constraints on your Arduino Project? Need a small Arduino board? However, there are so many small Arduino boards out there currently out there. Which one should you use?
What is TensorFlow Lite ? Just heard of TensorFlow Lite and want to know more about it? Today we will discuss everything about TensorFlow Lite.
Seeed XIAO BLE Sense & Seeed XIAO BLE Sense. These small-sized boards are specially designed for IoT and AI applications. This board is an ideal board to run AI using TinyML and TensorFlow Lite.
This project is using the Seeed Studio XIAO nRF52840 board and Sony Spresense boards to build a bicycle computer, where the components are the Sony Spresence main board in combination with the LTE extension board and various other peripherals.
Implementing machine learning models running on small, low-power microcontrollers and incorporating them into your projects becomes more accessible and affordable.

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    Top quality. This is what I need. Just do not like label on top of the metal cover. The label destroys the aesthetics.
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    Excellent quality and design of all products and fast shipping
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    Excellent quality and design of all products and fast shipping
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    good quality and fast shipment.
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