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Seeed Studio XIAO nRF52840 Sense - TinyML/TensorFlow Lite- IMU / Microphone - Bluetooth5

SKU
102010469

Seeed Studio XIAO nRF52840 Sense featuring Nordic nRF52840 MCU supports Bluetooth 5.0 & NFC and is Arduino-compatible. As the advanced yet smaller version of the Seeed Studio XIAO nRF52840, it carries extra onboard 6-axis IMU and microphone sensors making it suitable for TinyML AIoT projects requiring gesture/voice recognition.

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PRODUCT DETAILS

Seeed Studio XIAO nRF52840 Sense featuring Nordic nRF52840 MCU supports Bluetooth 5.0 & NFC and is Arduino-compatible. As the advanced yet smaller version of the Seeed Studio XIAO nRF52840, it carries extra onboard 6-axis IMU and microphone sensors making it suitable for TinyML AIoT projects requiring gesture/voice recognition.

 

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
  • Advanced functionality: Onboard digital microphone and Onboard 6-axis IMU 
  • 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 Sense 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 Sense 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. 

As the advanced yet smaller version of the Seeed Studio XIAO nRF52840, it carries two extra onboard sensors. One of them is a digital microphone created through Pulse Density Modulation(PDM) module on the nRF52840 chip. It can receive audio data in real-time which allows it can be used for audio recognition. The board can receive audio data through the MSM261D3526H1CPM microphone. The other one is 6-axis Inertial Measurement Unit(IMU) which can be applied in TinyML projects like gesture recognition. 

The powerful performance makes it perfect for TinyML AIoT projects requiring gesture/voice recognition, 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 Sense 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 utilize the accelerometer on XIAO nRF52840 Sense combined with Edge Impulse to enable motion recognition by connecting with a Grove - OLED Display 0.66" (SSD1306)- IIC - 3.3V/5V. 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

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

  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

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  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

  • Small and flexible wearable device

  • Wifi/Bluetooth controlled wireless connection project

  • Embedded Machine Learning Project

  • IoT and TinyML AI applications

  • Great for mini Arduino projects

 

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 Sense - nRF52840 x1

Check five pieces of 7-pin male header compatible for Seeed Studio XIAO Series Board!

 

ECCN/HTS

HSCODE 8543709990
USHSCODE 8471490000
UPC
EUHSCODE 8543709099
COO CHINA
CE 1
EU DoC 1
FCC 1
RoHS 1
TELEC 1
UK DoC 1

LEARN AND DOCUMENTS

Learn

[Wiki] XIAO BLE
This wiki will help you quickly get started with Seeed XIAO BLE.
Here is a XIAO BLE Sense user and he uses the 6-axis inertial measurement unit (IMU) on the board to measure yaw, pitch & roll. For the application, he uses just yaw to "open & close" the Fibonacci64 Nano like an aperture in Arduino.
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.
Want to know about your pets daliy active? this project gonna teach about how to set up the tracker using XIAO BLE Sense & Edge Impulse.
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.
A Blues Wireless Notecard provides cellular connectivity to a sound classification MCU. This is part of the elevator Digital Twin series.
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.
Get to test the nRF52840-powered XIAO BLE Sense board, a good idea to review it with Edge Impulse with a motion/gesture recognition demo on the board.
In this tutorial, we will explore Embedded Machine Learning, or simply, TinyML, running on a robust and still very tiny device, the Seed XIAO BLE Sense.
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.
We will explore the fantastic world of Physical Computing by programming tiny devices such as the XIAO BLE Sense using CircuitPython!
Just got your Arduino but don’t know what to do with it? No worries, we have compiled 30 cool Arduino projects to get you started!
This is the wiki that shows you how to use XIAO BLE Sense to connect Edge Impulse and achieve motion recognition.
Implementing machine learning models running on small, low-power microcontrollers and incorporating them into your projects becomes more accessible and affordable.

SHARED BY USERS

REVIEWS

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  1. Product Quality
    100%
    Documentation
    100%
    from order view
    Please publish Battery Charging Arduino Sketch for this product..
    I still have hard time getting the battery charging working..
    Love this product..
    By
  2. Product Quality
    100%
    Documentation
    100%
    from order view
    Really liked the board and the possibility of programming it using python. I'm amazed about making some sketches in my pc, debugging them, and adapting to be used with the board with minor changes.

    I've used not only this, but also the version without the IMU. It is really good to develop concept-proof for weareable devices.

    The small XIAO-form factor also helps a lot when trying to made concept-proof of developments as small as possible.

    The only concern I have is about the documentation, I expected more information about the BLE interface using Circuitpython, but even the adafruit's docs (circuitpython mantainer) is not as complete as I would like. That is the reason why I did not lowered the score for 'Documentation'.
    By
  3. Documentation
    100%
    Product Quality
    100%
    from order view
    Used it in a wearable headband to control LEDs programmed in CircuitPython that respond to changing orientation of the headband, and it works wonderfully well, and charges the battery for me, which I love!
    By
  4. Product Quality
    100%
    Documentation
    100%
    from order view
    Good Morning
    I didn't got an invoice
    please send me the invoice for this order to
    [email protected]

    BR
    Niv
    By
  5. Product Quality
    100%
    Documentation
    100%
    from order view
    The product arrived promptly. Packaging was great. After soldering the headers. Installed CircuitPython. Attached to the XIAO expansion board with Display and RTC. Placed program to display Day and Time and worked as expected.
    By

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