Seeed Studio XIAO nRF52840 Supports Arduino Micro/CircuitPython Ble
Need a larger quantity?
Need bulk pricing?
Get a formal quotation with lead time and volume pricing.
For universities, companies, distributors, and project orders.
Seeed Studio XIAO nRF52840 Supports Arduino Micro/CircuitPython Ble
The Seeed Studio XIAO nRF52840 is a powerful, ultra-compact development board based on the Nordic nRF52840 SoC, offering robust Bluetooth Low Energy (BLE) support. Designed for versatility, the Seeed Studio XIAO nRF52840 fully supports Arduino programming and MicroPython/CircuitPython, making it an ideal choice for wireless applications, wearable devices, and low-power IoT projects.
Despite its lovely tiny size, Seeed Studio XIAO nRF52840 packs a punch with its rich peripheral interfaces and ultra-low power consumption, enabling flexible, real-world deployment in a wide range of applications.
Key Features
-
Powerful nRF52840 SoC: Built on a 32-bit ARM Cortex-M4F processor with 1MB Flash and 256KB RAM.
-
Bluetooth 5.0 & BLE Support: Seamless wireless connectivity for smart devices and IoT solutions.
-
Arduino Micro Form Factor: Compatible with Arduino IDE for rapid prototyping and development.
-
Micro/CircuitPython Support: Program easily with Python for enhanced versatility and learning.
-
Ultra-Compact Design: Small size, perfect for embedded systems, wearables, and compact projects.
-
Low Power Consumption: Ideal for battery-powered applications.
-
Rich Peripheral Interfaces: Supports I2C, UART, SPI, PWM, ADC, and more.
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 5.0/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 |
/ |
Onboard PDM digital microphone |
|
Onboard 6-axis IMU |
||
|
Dimensions |
21 x 17.8mm |
|
|
Power |
Circuit operating voltage: 3.3V@200mA |
|
|
Charging current: 50mA/100mA |
||
|
Input voltage (VIN): 5V |
||
|
Standby power consumption: <5μA |
||
Hardware Overview
Onboard

PinOut

Back

Application Scenarios
-
Wireless IoT Devices
Build ultra-compact, battery-powered IoT devices with the Seeed Studio XIAO nRF52840, taking advantage of its low power consumption and BLE 5.0 connectivity.
-
Wearable Technology
Thanks to its miniature size and versatile interfaces, the Seeed Studio XIAO nRF52840 is perfect for designing fitness trackers, smart jewelry, and health monitors.
-
Smart Home Controllers
Create smart home solutions such as lighting controls, security sensors, and automation hubs with the robust wireless capabilities of the Seeed Studio XIAO nRF52840.
-
Remote Sensors and Data Loggers
Utilize the ultra-low power features of the Seeed Studio XIAO nRF52840 to deploy remote monitoring systems that run efficiently for extended periods.
-
BLE Beacons and Communication Nodes
Develop BLE beacons, proximity sensors, or wireless communication nodes using the reliable Bluetooth 5.0 stack built into the Seeed Studio XIAO nRF52840.
-
Education and STEM Projects
The Seeed Studio XIAO nRF52840 supports Arduino and Python programming, making it an ideal learning tool for coding, electronics, and IoT education.

Why Choose the Seeed Studio XIAO nRF52840?
The Seeed Studio XIAO nRF52840 seamlessly combines the ease of Arduino programming with the flexibility of MicroPython and CircuitPython, offering a highly versatile platform for makers, developers, and educators alike. Whether you're building a mini Bluetooth device, designing smart wearable gadgets, or creating a scalable IoT sensor network, the Seeed Studio XIAO nRF52840 provides the performance, low-power operation, and compact form factor needed to bring your ideas to life.
With its ultra-compact size, rich peripheral support, and robust BLE 5.0 connectivity, the Seeed Studio XIAO nRF52840 is the ultimate choice for anyone seeking powerful wireless solutions without compromise.
Shipping list
|
Seeed Studio XIAO nRF52840 (pin not included) |
x1 |
|
7 Pin Header |
x2 |
Reference
Related Article
1. General Shipping Information
- We provide reliable shipping services with a tracking number for each order.
- Shipping addresses must be entered in English and should not contain special symbols, so that the courier system can recognize your location correctly.
- Please make sure your shipping address is accurate before placing your order. We ship strictly according to the address provided at checkout.
- In-stock orders are usually dispatched within 1 business day after order confirmation.
- Estimated delivery times refer to the period after dispatch and do not include order processing time, weekends, public holidays, customs inspection, or force majeure delays.
- If you need to cancel or modify your order, please contact us before the order is marked as “Shipped”. Once shipped, the order cannot be canceled or changed.
🚀 Need Faster Shipping?
If you require expedited shipping, please contact our customer support team at info@openelab.io for a customized quote based on your destination.
2. Shipping Rates & Options
Shipping rates are calculated based on order value, destination, and available shipping methods. The final available options will be displayed at checkout.
2.1 Germany Domestic Shipping
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| Deutsche Post | €0.00 - €50.00 | €4.95 | 2-4 Business Days |
| Deutsche Post | Over €50.00 | Free | 2-4 Business Days |
|
DHL Paket (Faster Delivery) |
€0.00 - €50.00 | €6.95 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
€50.00 - €100.00 | €2.00 | 1-3 Business Days |
|
DHL Paket (Faster Delivery) |
Over €100.00 | Free | 1-3 Business Days |
2.2 Selected EU Countries / Regions
Available EU shipping destinations are shown at checkout based on your shipping address. For orders shipped to selected EU countries or regions outside Germany, we use FedEx Regional Economy.
| Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|
| FedEx Regional Economy | €0.00 - €100.00 | €7.95 | 3-5 Business Days |
| FedEx Regional Economy | Over €100.00 | Free | 3-5 Business Days |
EU orders may be fulfilled from our Munich warehouse or, when applicable, from our Shenzhen warehouse depending on inventory availability. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
2.3 United States
| Region | Shipping Method | Order Value | Cost | Est. Delivery |
|---|---|---|---|---|
|
Continental U.S. (50 States) |
USPS Ground Advantage | €0.00 - €45.00 | €4.95 | 3-7 Business Days |
| USPS Ground Advantage | Over €45.00 | Free | 3-7 Business Days | |
| USPS Priority Mail | €0.00 - €45.00 | €16.95 | 1-4 Business Days | |
| USPS Priority Mail | Over €45.00 | €14.95 | 1-4 Business Days | |
|
Non-Continental U.S. (AK, HI, PR, etc.) |
USPS Ground Advantage | €0.00 - €60.00 | €6.95 | 5-9 Business Days |
| USPS Ground Advantage | Over €60.00 | Free | 5-9 Business Days |
Non-Continental U.S. regions include Alaska, American Samoa, Guam, Hawaii, the Marshall Islands, the Northern Mariana Islands, Palau, Puerto Rico, the U.S. Virgin Islands, and U.S. Armed Forces addresses.
2.4 International Destinations Outside the EU
For selected international destinations outside the EU, including Switzerland, the United Kingdom, and Norway, shipping rates are as follows:
| Order Amount | Shipping Cost |
|---|---|
| €0.00 - €300.00 | €19.95 |
| Over €300.00 | Free |
For non-EU destinations, import duties, taxes, and customs fees may be charged by the destination country and are the responsibility of the recipient.
3. Warehouses & Fulfillment
Our products may be stored in our Munich, Arlington, and Shenzhen warehouses. The actual shipping warehouse depends on product availability and destination.
3.1 Munich Warehouse
For products stored in our Munich warehouse, we use Deutsche Post or DHL Paket for domestic deliveries within Germany. For selected EU destinations outside Germany, we use FedEx Regional Economy.
3.2 Arlington Warehouse
For products stored in our Arlington warehouse, we use USPS or UPS for deliveries within the United States.
3.3 Shenzhen Warehouse
For pre-order items or products fulfilled directly from our Shenzhen warehouse, we arrange reliable international shipping based on destination and inventory status. For EU member states, OpenELAB covers applicable import duties and taxes under DDP service where required.
4. Inventory, Pre-orders & Split Shipments
- Inventory Status: Please check the product page for real-time stock information. If an item is out of stock in our local warehouses, it may be marked as “Pre-order”.
- Pre-order Fulfillment: Pre-order items may be shipped directly from Shenzhen or restocked to a local warehouse first before final delivery.
- Split Shipments: If your order contains both in-stock and pre-order items, we may ship them separately. No additional shipping fee will be charged for split shipments caused by our fulfillment arrangement.
5. Customs, Taxes & Delivery Issues
5.1 Customs and Taxes
For EU Member States:
Whether shipped from Germany or China, OpenELAB covers applicable import duties and taxes under DDP service where required. Customers in EU member states should not be charged additional import duties or VAT upon delivery.
For destinations outside the European Union, such as Switzerland, Norway, and the United Kingdom, import duties, taxes, and customs fees may be charged by local authorities upon delivery. These fees are the responsibility of the recipient.
5.2 Damaged, Delayed, or Lost Parcels
Please inspect your parcel upon delivery where possible. If you notice visible damage, please report it to the courier and contact us as soon as possible. This does not affect your statutory consumer rights.
If your parcel is delayed, lost, returned to sender, or the tracking information has not updated for an unusual period of time, please contact us at info@openelab.io. We will assist you in checking the shipment status with the courier.
5.3 Incorrect Address or Failed Delivery
If a parcel cannot be delivered due to an incorrect or incomplete address provided by the customer, refusal of delivery, or failure to collect the parcel, additional shipping or return costs may apply.
6. VAT
For orders within the EU, VAT is collected at checkout according to the applicable destination rules. No additional VAT should be collected upon delivery for EU member state orders covered under our DDP shipping arrangement.






