Seeed Studio XIAO BLE nRF52840

(1 customer review)

Out of stock

Approx Restocking Date: NA
SKU: 1201741
  1. Powerful CPU: Nordic nRF52840, ARM® Cortex™-M4 32-bit processor with FPU operating at 64 MHz
  2. Bluetooth 5.0
  3. Wireless connect
  4. Onboard 2 MB flash
  5. Embedded machine learning projects
  6. BQ25101 chip supported lithium battery charge management


(inc GST)

Out of stock

You must register to use the waitlist feature. Please login or create an account
Category: Interface Module
Tags: SeeedStudio XIAO

As the first wireless product in the Seeed XIAO family, Seeed XIAO BLE has equipped a powerful Nordic nRF52840 MCU which is designed in a Bluetooth 5.0 module, built around 32-bit ARM® Cortex™-M4 CPU with Floating-Point Unit(FPU) operating at 64Mhz. With the capability of wireless connection, it still remains the Seeed XIAO series classic form-factor of small and exquisite which can be used for wearable devices and Internet of Things projects. Furthermore, it only costs 5 μA in the deep sleep model and it supports battery charge management because of the BQ25101 chip. To better support IoT and TinyML AI projects, there is an advanced version “Seeed XIAO BLE Sense” that carries both 6-axis IMU and PDM microphones.

Compare to XIAO RP2040, XIAO BLE has a richer interface. The first thing to note is that the Near Field Communication(NFC) is functional on the board. Secondly, there is a tiny and elegant reset button on one side of the Type-C interface. On the other side, it is designed in a three-in-one LED along with power LED. 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. Same as Seeed XIAO RP2040, it has an onboard 2 MB flash which means it can also be programmed by Arduino, MicroPython, CircuitPython, or other program languages.


  1. Powerful CPU: Nordic nRF52840, ARM® Cortex™-M4 32-bit processor with FPU operating at 64 MHz
  2. Wireless capabilities: Bluetooth 5.0, NFC, and ZigBee module with onboard antenna
  3. Ultra-small size: 21 x 17.5mm, Seeed Xiao series classic form-factor for wearable devices
  4. Ultra-low sleep power: 5 μA, deep sleep model
  5. Battery charging chip: BQ25101 chip supported lithium battery charge management
  6. Rich interface: 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
  7. Onboard 2 MB flash
  8. Onboard PDM microphone and 6-axis IMU (only for XIAO BLE nRF52840 Sense)
  9. Single-sided components, surface mounting design


  1. Wearable devices
  2. Wireless connect
  3. Embedded machine learning projects
  4. Perfect for mini Arduino projects
  5. Tiny Machine Learning application

Package Includes:

1 x Seeed Studio XIAO BLE nRF52840


Seeed XIAO BLE – nRF52840


Nordic nRF52840&ARM®
Cortex®-M4 with FPU run up to 64 MHz


Bluetooth 5.0/NFC/Zigbee

On-chip Memory

1 MB flash
256 kB RAM

Onboard Memory

2 MB QSPI flash


1xUART, 1xIIC, 1xSPI, 1xNFC, 1xSWD,

 Power Circuit

operating voltage: [email protected]
Charging current: 50mA/100mA
Input voltage (VIN): 5V/
Standby power consumption:  <5μA


21 x 17.5mm

Shipment Weight

0.008 kg

Shipment Dimensions

10 × 7 × 1 cm

3 Months Warranty

This item is covered with a standard supplier warranty of 3 months from the time of delivery against manufacturing defects only. This is a quality product & only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Based on 1 review

1.0 overall

Add a review

  1. adipotnis (verified owner)

    The SEEED xiao was a disappointing board. It started in the first bootup but after using once it stopped displaying as arduino/ circuitpython board. I tried st-link, jtags but no avail.
    I recommend anyone considering this to spend a bit more and invest in the more reliable adafruit ble boards available on robu


Questions and answers of the customers

There are no questions yet. Be the first to ask a question about this product.

Only registered users are eligible to enter questions
Country Of Origin: China