Name: Seeed Studio XIAO nRF52840 Sense - XIAO BLE Sense
Brand: Seeed Studio
SKU: 078-102010469
Price: 1882.1 INR
Availability: InStock

Technical Specifications

Brand:

Seeed Studio

Processor:

Nordic nRF52840, ARM Cortex-M4 with FPU runs up to 64 MHz

Wireless:

Bluetooth Low Energy 5.4/Bluetooth Mesh/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

Dimensions:

21 x 17.5mm

Circuit operating voltage:

3.3V@200mA

Charging current:

50mA/100mA

Input voltage (VIN):

Warranty Information

All the products supplied by Evelta are genuine and original. We offer 24-hour shipping for all orders to ensure your products reach you quickly. In case of manufacturing defects, please visit our returns page for more details

Description

Resources:

Seeed Studio XIAO nRF52840 Sense with BLE 5.4, 6-Axis IMU, PDM Microphone and Ultra-Low-Power Operation

The Seeed Studio XIAO nRF52840 Sense, also known as XIAO BLE Sense, is a compact wireless development board based on the Nordic nRF52840 Arm Cortex-M4F microcontroller. Running at up to 64 MHz, it provides 1 MB of on-chip Flash, 256 KB RAM, and an additional 2 MB onboard QSPI Flash for embedded applications. Bluetooth Low Energy 5.4, Bluetooth Mesh, NFC, and an onboard antenna make the board suitable for wearable electronics, wireless sensors, IoT nodes, portable devices, and battery-powered embedded systems.

The Sense version adds an onboard LSM6DS3TR-C 6-axis IMU and PDM digital microphone, allowing motion, orientation, gesture, vibration, and audio data to be captured without additional sensor modules. Its ultra-low-power architecture supports standby consumption below 5 uA, while integrated lithium-battery charging simplifies portable designs. With UART, I2C, SPI, NFC, SWD, PWM, ADC, Arduino, MicroPython, and CircuitPython support in a 21 x 17.8 mm XIAO form factor, the board is well-suited for TinyML, embedded machine-learning, and compact wireless prototyping.

Key Features

Nordic nRF52840 MCU: Uses a 32-bit Arm Cortex-M4 processor with a floating-point unit for embedded processing and DSP-oriented applications.
64 MHz CPU: Provides sufficient performance for wireless sensing, motion processing, embedded control, and TinyML workloads.
1 MB On-Chip Flash: Provides integrated program storage for firmware and embedded applications.
256 KB RAM: Supports Bluetooth stacks, sensor processing, application code, and embedded machine-learning workloads.
2 MB QSPI Flash: Additional onboard Flash provides extra storage for application data and resources.
Bluetooth Low Energy 5.4: Supports low-power wireless communication for wearables, sensors, and IoT devices.
Bluetooth Mesh Support: Enables development of compatible distributed Bluetooth Mesh applications.
NFC Connectivity: Integrated NFC support provides additional short-range wireless interaction capability.
Onboard Antenna: Integrated antenna reduces the need for an external RF antenna in compact applications.
6-Axis IMU: Onboard LSM6DS3TR-C combines a 3-axis accelerometer and 3-axis gyroscope for motion and orientation sensing.
PDM Digital Microphone: Integrated microphone supports audio sensing, voice-triggered functions, and embedded ML applications.
Ultra-Low-Power Standby: Standby power consumption is below 5 uA for battery-powered and always-on systems.
Lithium-Battery Management: Integrated battery-charging circuitry supports portable 3.7 V lithium-battery applications.
11 GPIO/PWM Pins: Provides configurable digital I/O and PWM capability for sensors, actuators, LEDs, and control signals.
6 ADC Inputs: Supports analogue-sensor and voltage measurement applications.
UART Interface: Enables serial communication with embedded modules and development systems.
I2C Interface: Supports connection to digital sensors, displays, and peripheral ICs.
SPI Interface: Provides high-speed synchronous communication for displays, memory, and external peripherals.
SWD Interface: Supports programming and hardware-level debugging.
3.3 V I/O Logic: GPIO pins operate at 3.3 V logic levels and should not be driven above 3.3 V.
Arduino Support: Compatible with the Arduino development ecosystem for rapid prototyping.
MicroPython Support: Enables Python-based embedded development.
CircuitPython Support: Supports beginner-friendly and rapid Python-based hardware development.
TinyML Ready: Onboard IMU and microphone make the board suitable for motion- and audio-based machine-learning projects.
Compact XIAO Form Factor: Measures only 21 x 17.8 mm for wearables, compact sensor nodes, and embedded products.
Single-Sided Component Layout: Supports easier surface mounting and integration into custom carrier boards.