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
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Powerful nRF52840 SoC: Built on a 32-bit ARM Cortex-M4F processor with 1MB Flash and 256KB RAM.
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Bluetooth 5.0 & BLE Support: Seamless wireless connectivity for smart devices and IoT solutions.
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Arduino Micro Form Factor: Compatible with Arduino IDE for rapid prototyping and development.
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Micro/CircuitPython Support: Program easily with Python for enhanced versatility and learning.
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Ultra-Compact Design: Small size, perfect for embedded systems, wearables, and compact projects.
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Low Power Consumption: Ideal for battery-powered applications.
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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
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Application Scenarios
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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.
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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.
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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.
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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.
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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.
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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 |