---
product_id: 416219032
title: "XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk."
brand: "seeed studio"
price: "₨13526"
currency: LKR
in_stock: true
reviews_count: 13
category: "Seeed Studio"
url: https://www.desertcart.lk/products/416219032-xiao-nrf52840-supports-arduino-circuitpython-bluetooth5-0-nfc-with-onboard
store_origin: LK
region: Sri Lanka
---

# 64MHz ARM Cortex-M4 CPU Bluetooth 5.0 + NFC onboard antenna Ultra-low 5μA deep sleep power XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk.

**Brand:** seeed studio
**Price:** ₨13526
**Availability:** ✅ In Stock

## Summary

> 🚀 Tiny Tech, Massive Impact: Power your next-gen IoT with the XIAO nRF52840!

## Quick Answers

- **What is this?** XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. by seeed studio
- **How much does it cost?** ₨13526 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/416219032-xiao-nrf52840-supports-arduino-circuitpython-bluetooth5-0-nfc-with-onboard)

## Best For

- seeed studio enthusiasts

## Why This Product

- Trusted seeed studio brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Compact Yet Capable:** Ultra-small 21 x 17.5mm form factor fits perfectly into sleek, space-conscious designs.
- • **Versatile Programming:** Supports Arduino, MicroPython, CircuitPython — code your way with 2MB onboard flash memory.
- • **Powerhouse Performance:** Harness the 32-bit ARM Cortex-M4 with FPU running at 64MHz for lightning-fast processing.
- • **Battery-Friendly Design:** 5μA deep sleep mode with integrated lithium battery charging for all-day, always-on applications.
- • **Seamless Wireless Connectivity:** Bluetooth 5.0 and NFC with onboard antenna keep your IoT and wearable projects effortlessly connected.

## Overview

The Seeed Studio XIAO nRF52840 is a compact, high-performance microcontroller featuring a 64MHz 32-bit ARM Cortex-M4 CPU with FPU, integrated Bluetooth 5.0 and NFC wireless connectivity, and a rich interface supporting UART, IIC, and SPI. Designed for tiny machine learning and IoT applications, it boasts ultra-low 5μA deep sleep power consumption with battery charging management, all within a sleek 21 x 17.5mm footprint. Compatible with Arduino, MicroPython, and CircuitPython, it’s the ultimate choice for professionals seeking cutting-edge wireless microcontroller solutions.

## Description

Product description Works with desertcart Sidewalk desertcart Sidewalk is a secure wireless community network that uses desertcart Sidewalk Gateways (also called Sidewalk Bridges), such as compatible desertcart Echo and Ring devices, to provide cloud connectivity for IoT endpoint devices. desertcart Sidewalk enables low-bandwidth and long-range connectivity at home and beyond using Bluetooth Low Energy for short-distance communication and LoRa and FSK radio protocols at 900MHz frequencies to cover longer distances. The XIAO nRF52840 is a wireless module qualified for desertcart Sidewalk, providing IoT device connectivity via Bluetooth Low Energy radio technology on desertcart Sidewalk network. Tiny ESP32-S3 WiFi 4 and BLE 5.0 module for IoT, AI, and robotics XIAO nRF52840 XIAO nRF52840 3PCS Pack nRF52840 (Pre-Soldered) XIAO nRF52840 Sense nRF52840 Sense 3PCS Pack 52840 Sense Pre-Soldered

Review: Bought to use as SteamVR Dongle - Bought a pair of these to use as SteamVR dongles to connect my Valve Index controllers to. Super easy to set up, just had to hold the button while the device was plugged into my PC, dragged and dropped the firmware onto the device, and was set to go. Much cheaper than any other aftermarket SteamVR dongle, works great.
Review: Tiny but mighty! - I got one of these to replace a different nrf52 board. I was able to get a Bluetooth keyboard working and I love it! It uses the same SoC as the adafruit feather series and I was able to get most of their libraries working! I have ordered multiple as their small form factor makes them perfect for what I’m making. Small complaint that the arduino BSP includes the boot loader, but I can’t seem to figure out how to burn the factory boot loader back after I replaced it. It hasn’t affected any of my projects but I have wanted to revert back to the original boot loader a few times.

## Features

- 📌【Powerful CPU】As the first wireless product in the Seeed XIAO family, Seeed Studio XIAO nRF52840 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.
- 📌【Wireless Capabilities】XIAO nRF52840 has Bluetooth 5.0 NFC module with an onboard antenna. With the capabilities 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.
- 📌【Rich Interface】Firstly, 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. 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.
- 📌【Ultra-low Sleep Power】5 μA, deep sleep model with battery charging chip: BQ25101 chip supported lithium battery charge management.
- 📌【Ultra-small Size】21 x 17.5mm, Seeed Xiao series classic form-factor for wearable devices. Part List: Seeed XIAO BLE nRF52840*1/7 Pins Header*2.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B09T9VVQG7 |
| Best Sellers Rank | #40 in Single Board Computers (Computers & Accessories) |
| Brand | seeed studio |
| Built-In Media | / |
| CPU Speed | 0.06 GHz |
| Compatible Devices | Computers (PCs, laptops, tablets), microcontrollers (Arduino), and other devices that can communicate via USB or wirelessly |
| Connectivity Technology | Bluetooth 5.0, NFC, Zigbee |
| Customer Reviews | 4.4 out of 5 stars 95 Reviews |
| Item Dimensions L x W x H | 0.83"L x 0.69"W x 0.83"H |
| Manufacturer | seeed studio |
| Memory Storage Capacity | 2 MB |
| Mfr Part Number | 102010448-FA |
| Model Name | Seeed Studio XIAO nRF52840 |
| Operating System | Arduino IDE, MicroPython, CircuitPython |
| Processor Brand | Nordic |
| Processor Count | 1 |
| Processor Speed | 0.06 GHz |
| RAM Memory Installed | 0.25 MB |
| RAM Memory Technology | RAM |
| Ram Memory Installed Size | 0.25 MB |
| Smart Home Compatibility | Not Smart Home Compatible |
| Total Usb Ports | 1 |
| Unit Count | 1.0 Count |
| Warranty Description | / |
| Wireless Compability | Bluetooth |

## Product Details

- **Brand:** seeed studio
- **CPU Speed:** 0.06 GHz
- **Memory Storage Capacity:** 2 MB
- **Model Name:** Seeed Studio XIAO nRF52840
- **Ram Memory Installed Size:** 0.25 MB

## Images

![XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. - Image 1](https://m.media-amazon.com/images/I/61VzG7EuK3L.jpg)
![XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. - Image 2](https://m.media-amazon.com/images/I/61-yWm-whwL.jpg)
![XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. - Image 3](https://m.media-amazon.com/images/I/51i+aUY0KZL.jpg)
![XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. - Image 4](https://m.media-amazon.com/images/I/51ZAvdY30AL.jpg)
![XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk. - Image 5](https://m.media-amazon.com/images/I/51r5WFQE+6L.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bought to use as SteamVR Dongle
*by B***N on May 2, 2024*

Bought a pair of these to use as SteamVR dongles to connect my Valve Index controllers to. Super easy to set up, just had to hold the button while the device was plugged into my PC, dragged and dropped the firmware onto the device, and was set to go. Much cheaper than any other aftermarket SteamVR dongle, works great.

### ⭐⭐⭐⭐⭐ Tiny but mighty!
*by H***S on April 1, 2022*

I got one of these to replace a different nrf52 board. I was able to get a Bluetooth keyboard working and I love it! It uses the same SoC as the adafruit feather series and I was able to get most of their libraries working! I have ordered multiple as their small form factor makes them perfect for what I’m making. Small complaint that the arduino BSP includes the boot loader, but I can’t seem to figure out how to burn the factory boot loader back after I replaced it. It hasn’t affected any of my projects but I have wanted to revert back to the original boot loader a few times.

### ⭐⭐⭐⭐ I'm probably the reason I have issues.
*by S***R on January 2, 2023*

I bought a few of these for smaller projects. I have made several adruino projects with no issues but haven't been able to make these work. I'm pretty sure its my fault. I would consider myself at an intermediate skill level with Arduino but these seem to need a bit more skill. I also have trouble with the cheap knock off Arduino minis. It's most likely a settings issue. I dropped my star rating because of the skill needed to make it work even though its listed as if it can act a direct Arduino Uno replacement. Will be awesome once I get them to work right.

## Frequently Bought Together

- Seeed Studio XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with Amazon Sidewalk.
- Seeed Studio XIAO ESP32C3 - Tiny MCU Board with Wi-Fi and BLE for IoT Controlling Scenarios. Microcontroller with Battery Charge, Power Efficient, and Rich Interface for Tiny Machine Learning. …

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.lk/products/416219032-xiao-nrf52840-supports-arduino-circuitpython-bluetooth5-0-nfc-with-onboard](https://www.desertcart.lk/products/416219032-xiao-nrf52840-supports-arduino-circuitpython-bluetooth5-0-nfc-with-onboard)

---

*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-06-05*