Seeed XIAO nRF52840 module

Seeed Studio

15 in stock

SKU: XIA0-001Code: XIAO-NRF52840

Seeed Studio XIAO nRF52840 - TinyML/TensorFlow Lite - Bluetooth5


15 in stock

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.

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.

For details on Seeed Studio Wiki page, click here.see this page:


  • 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
  • USB Type-C
  • Circuit Operating Voltage: 3.3V
  • Supply Voltage(via USB): 5V


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.


Seeed Studio XIAO nRF52840

 Seeed Studio XIAO nRF52840 Sense


  Nordic nRF52840

  The same as Seeed Studio XIAO nRF52840

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


  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


  1xUART, 1xIIC, 1xSPI, 1xNFC, 1xSWD,

  The same as Seeed Studio XIAO nRF52840

  11xGPIO(PWM), 6xADC



  Onboard PDM digital microphone

  Onboard 6-axis IMU


  21 x 17.5mm

  The same as Seeed Studio XIAO nRF52840


  Circuit operating voltage: 3.3V@200mA

  The same as Seeed Studio XIAO nRF52840

  Charging current: 50mA/100mA

  Input voltage (VIN): 5V

  Standby power consumption:  <5μA

Package Includes

1 x Seeed XIAO nRF52840 module

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SKU: XIA0-001 Categories: , Tags: , , ,
Weight2 g
Wireless Technology


Chip Family