Seeed Studio XIAO nRF52840 Sense Plus Bluetooth Development Board
The Seeed Studio XIAO nRF52840 Sense Plus is a compact and feature-rich wireless development board designed for IoT, wearable electronics, smart sensing, AI edge computing, and embedded system applications. Powered by the Nordic nRF52840 processor, the board delivers efficient low-power performance combined with Bluetooth Low Energy connectivity and integrated sensing capabilities. Its ultra-small XIAO form factor makes it ideal for space-constrained projects, portable devices, and battery-powered embedded systems.
Designed for makers, embedded developers, students, researchers, and AIoT enthusiasts, the XIAO nRF52840 Sense Plus features onboard sensors that support motion detection, environmental monitoring, gesture recognition, and intelligent sensing applications. The board supports popular development environments including Arduino, MicroPython, and TinyML frameworks, enabling flexible development for machine learning, edge AI, and wireless embedded applications. Its versatile GPIO support allows seamless integration with displays, sensors, actuators, and external communication modules for advanced prototyping and automation projects.
The low-power architecture makes the board highly suitable for wearable devices, wireless sensor networks, health monitoring systems, robotics, and portable IoT products. With integrated sensing, wireless communication, and compact hardware design, the Seeed Studio XIAO nRF52840 Sense Plus provides an efficient solution for intelligent connected devices and embedded AI applications.
Hardware Overview
Onboard
PinOut
XIAO nRF52840 back vs XIAO nRF52840 Plus back
High-Performance MCU:Nordic Semiconductor‘s nRF52840chip with FPU at 64 MHz, multiple development ports, compatible with Arduino/CircuitPython/MicroPython
Onboard Sensing:Integrated 6-axis IMU and PDM microphone enable motion sensing and audio input, ideal for wearable devices and compact ML applications
Advanced Wireless Connectivity: Bluetooth Low Energy 5.4 with built-in antenna and NFC support
Efficient Power Management: 5 μA deep sleep consumption with integrated Li-ion battery charging
Expanded 20 GPIOs: 9 extra 1.27mm pitch SMD castellation pins beyond standard XIAO nRF52840
Universal Compatibility: Standard backside layout (with aligned battery pads, and debugger pads) for more to-be-released XIAO expansion boards
Classic XIAOForm Factor:21 x 17.8mm design with 2.54mm pin headers, single-sided mounting for wearables and space-constrained projects
Features
nRF52840 based wireless development board
Bluetooth Low Energy connectivity support
Integrated onboard sensors for smart sensing applications
Ultra-compact XIAO form factor design
Low-power architecture for battery-powered systems
Supports Arduino and MicroPython development
Compatible with TinyML and AI edge workflows
Versatile GPIO expansion support
Suitable for wearable and IoT applications
Easy integration with external sensors and modules
This product comes with a 1-year manufacturer warranty from the date of purchase, covering manufacturing defects only.
Warranty Void If:
The product shows signs of physical damage, mishandling, exposure to water/moisture, fire, natural calamities, unauthorized repairs, improper storage near heat or direct sunlight, or alteration in any way.
Testing NFC features for simple tap interactions went smoothly, with clear documentation outlining setup. Hardware feels robust despite its small size. Store checkout and order tracking were smooth, contributing to a positive customer experience overall.
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Anirudh Kumaran
Reliable sensor platform
After extended testing, IMU and microphone readings remain consistent, and Bluetooth links stay stable. Documentation covers most needs, and any gaps are filled by community resources. Packaging was appropriate, and product quality inspires confidence for long-term use.
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STEM Solutions
Minor learning curve
Getting advanced Bluetooth features running required some reading, but examples and community posts helped overcome hurdles. Once configured, performance has been solid. Shipping was uneventful, and the board showed no manufacturing defects.
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hemant malve
Sensor fusion fun
Combining IMU data and microphone input for small projects has been enjoyable, and examples demonstrate capabilities well. Bluetooth connectivity stayed stable in my tests. Delivery arrived on schedule, and overall product working feels reliable.
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Aditya Singh
Compact yet feature rich
Despite its tiny footprint, the board integrates IMU, microphone and extra SMD pads for more I/O. Website documentation and diagrams helped me plan soldering. Delivery was fast, and everything matched the online description perfectly.
While the product has always been good and have never found a faulty one, the experience of purchase from Robocraze has also always been a wonderful one. On time delivery, well packaged, no follow up or reminder, easy tracking etc. Great work team, keep it up !!