Seeed Studio XIAO nRF52840 (Pre-Soldered)

• Versatile Microcontroller: Incorporate the Nordic nRF52840 chip with FPU, operating up to 64 MHz, mounted multiple development ports, supported by Arduino / CircuitPython / Micropython
• Wireless Capabilities: Implement Bluetooth 5.0, BLE functions with onboard antenna, also provide NFC connectivity
• Elaborate Power Design: Provide ultra-low power consumption as 5 μA in deep sleep mode while supporting lithium battery charge management
• Thumb-sized Design: 21 x 17.5mm, Seeed Studio XIAO series classic form-factor, suitable for wearable devices
• Perfect for Production: Breadboard-friendly & SMD design, no components on the back

Starter Kit with free Course for all Electronics Neophytes and Enthusiasts

Seeed Studio has provided the Grove Starter Kit along with free and detailed courses for you quickly get started with microcontrollers and electronics, regarding all the Seeed Studio XIAO boards, promising you a great learning experience.

Not only programming but also electronics knowledge is not required, you will be taken step by step, from understanding the basic concepts to exercising the simple projects individually, finally being able to build complex, interesting, wearable projects on your own, owing a practical electronic product prototype from the course.

You can have access to the Seeed Studio Grove ecosystem by connecting it to the compatible Seeed Studio XIAO expansion board. We have developed more than 400 Grove modules, covering a wide range of applications that can fulfill various needs. For example, you can make a BLE AI-driven Smartwatch Detecting Potential Sun Damage by connecting the Seeed Studio XIAO nRF52840 with an expansion board, and a Grove – UV Sensor. Get started and explore the infinite possibilities of the Seeed Studio XIAO series!

If you are interested in programming embedded machine learning, we have Codecraft visual programming that can help you quickly start your own TinyML project. And we have set up a #tinyml channel on our Discord server, please click to join for 24/7 making, sharing, discussing, and helping each other out.

We already have 10 XIAO products based on different solutions in the XIAO family, to help you better understand the differences and choose the most suitable part for your projects, please refer to the Seeed Studio XIAO Series Page.

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 17.5mm
Power	Circuit operating voltage: 3.3V@200mA
Charging current: 50mA/100mA
Input voltage (VIN): 5V
Standby power consumption: <5μA

• Onboard

• PinOut

• Back

• Wearable devices
• Wireless connect
• Embedded machine learning projects
• Perfect for mini Arduino projects
• Tiny Machine Learning application

Nano BLE MCU-nRF52840 PS v1.1

Bottom-pad-positioning

Flash_P25Q16H-UXH-IR_Datasheet

Seeed Studio XIAO nRF52840 BLE Communication Distance Test Report

Seeed Studio XIAO nRF52840 CE | FCC | MIC

XIAO Reference Design

3D Printing “Case” Studies

Seeed Studio XIAO nRF52840 (Pre-Soldered)

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