Seeed Studio XIAO nRF52840 Sense (XIAO BLE Sense) (EU Version)

Description
The Seeed Studio XIAO nRF52840 Sense (XIAO BLE Sense) is a compact and versatile microcontroller board designed for Bluetooth Low Energy (BLE) and IoT applications. Its small size and integrated sensors make it ideal for wearable devices, environmental monitoring, and smart electronics. As a result, it provides a high-performance solution for compact and portable projects.
This board features the nRF52840 microcontroller with BLE support, enabling wireless communication and low-power operation. Consequently, the Seeed Studio XIAO nRF52840 Sense can be used for remote sensing, data logging, and IoT automation. Additionally, it integrates multiple onboard sensors, including temperature, humidity, light, and motion sensors, which simplifies prototyping without external modules.
One of the key advantages of the XIAO BLE Sense is its ease of programming. It is compatible with Arduino IDE, CircuitPython, and PlatformIO, allowing developers to quickly write and upload code. Furthermore, the small form factor makes it perfect for embedded systems and wearable designs where space is limited.
The board is designed for durability and low power consumption. It supports USB programming and can operate on small battery packs, making it ideal for portable IoT devices. The Seeed Studio XIAO nRF52840 Sense also includes GPIO pins for additional expansion and integration with external components, enhancing its versatility.
This microcontroller board is widely used in environmental monitoring, smart home projects, robotics, and health monitoring devices. Moreover, it supports BLE communication, making it compatible with smartphones, tablets, and other wireless devices.
Overall, the Seeed Studio XIAO nRF52840 Sense is a compact, powerful, and flexible solution for developers and hobbyists. Its onboard sensors, BLE capabilities, and ease of programming make it an essential component for IoT, wearable, and smart electronics projects.
Features

Versatile Microcontroller:?Incorporate the?Nordic nRF52840?chip with FPU, operating up to 64 MHz, mounted multiple development ports, supported by Arduino / CircuitPython
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 ?A in deep sleep mode while supporting lithium?battery charge management
Advanced onboard Functionality:?Assemble additional?digital microphone?and?6-axis IMU?in the tiny board for embedded Machine Learning applications
Thumb-sized Design:?21 x 17.8mm, Seeed Studio XIAO series classic form-factor, suitable for wearable devices

Specification

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: <5?A Hardware Overview Attention All the I/O pins are 3.3V, please do not input more than 3.3V, otherwise, the CPU may be damaged. PinOut Application Small and flexible wearable device Wifi/Bluetooth controlled wireless connection project Embedded Machine Learning Project IoT and TinyML AI applications Great for mini Arduino projects Package Includes 1 x Seeed Studio XIAO nRF52840 Sense