--- product_id: 416221489 title: "XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, MCU with 6-axis IMU Works with Amazon Sidewalk" brand: "seeed studio" price: "€ 44.77" currency: EUR in_stock: true reviews_count: 13 category: "Seeed Studio" url: https://www.desertcart.pt/products/416221489-xiao-nrf52840-sense-supports-arduino-circuitpython-bluetooth5-0-nfc-onboard store_origin: PT region: Portugal --- # 64MHz ARM Cortex-M4 CPU Bluetooth 5.0 + NFC onboard antenna Ultra-low 5μA deep sleep power XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, MCU with 6-axis IMU Works with Amazon Sidewalk **Brand:** seeed studio **Price:** € 44.77 **Availability:** ✅ In Stock ## Summary > 🚀 Tiny Tech, Massive Impact: Power Your Next-Gen IoT Revolution ## Quick Answers - **What is this?** XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, MCU with 6-axis IMU Works with Amazon Sidewalk by seeed studio - **How much does it cost?** € 44.77 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/416221489-xiao-nrf52840-sense-supports-arduino-circuitpython-bluetooth5-0-nfc-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 Mighty:** Classic 21 x 17.5mm form factor fits anywhere—perfect for discreet wearables and sleek IoT devices. - • **Plug & Play Versatility:** Supports Arduino, CircuitPython, MicroPython—code your way with 2MB flash and multiple serial interfaces (UART, IIC, SPI). - • **Powerhouse in a Pinhead:** Harness the 64MHz 32-bit ARM Cortex-M4 with FPU for lightning-fast processing and smooth multitasking. - • **Battery-Smart Efficiency:** Ultra-low 5μA deep sleep mode with BQ25101 battery charging chip means longer runtime and smarter power management. - • **Seamless Wireless Freedom:** 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 board featuring a 64MHz Nordic nRF52840 MCU with Bluetooth 5.0 and NFC capabilities. Designed for seamless wireless connectivity and ultra-low power consumption (5μA deep sleep), it supports multiple programming environments including Arduino and CircuitPython. Its small 21 x 17.5mm form factor and rich interface options make it ideal for wearable devices and IoT projects, delivering professional-grade performance in a pocket-sized package. ## Description desertcart.com: Seeed Studio XIAO nRF52840 - Supports Arduino/CircuitPython - Bluetooth5.0 NFC, with Onboard Antenna, Microcontroller with Rich Interface for Tiny Machine Learning Works with desertcart Sidewalk. : Electronics 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 | #42 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 96 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 - **Model Name:** nRF52840 - **Ram Memory Installed Size:** 256 KB - **Memory Storage Capacity:** 2 MB - **CPU Model:** core_m ## Images ![XIAO nRF52840 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, MCU with 6-axis IMU Works with Amazon Sidewalk - Image 1](https://m.media-amazon.com/images/I/51fc9bJ8CEL.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 Sense - Supports Arduino/CircuitPython - Bluetooth5.0 NFC with Onboard Antenna, MCU with 6-axis IMU Works with Amazon Sidewalk - Raspberry Pi Zero 2W - 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.pt/products/416221489-xiao-nrf52840-sense-supports-arduino-circuitpython-bluetooth5-0-nfc-onboard](https://www.desertcart.pt/products/416221489-xiao-nrf52840-sense-supports-arduino-circuitpython-bluetooth5-0-nfc-onboard) --- *Product available on Desertcart Portugal* *Store origin: PT* *Last updated: 2026-07-10*