10Pcs/1pc Seeed Studio XIAO BLE NRF52840 SENSE Plus RP2040 Bluetooth-compatible Module For Arduino Nano Microcontroller

Specification
Item
Seeed XIAO BLE - nRF52840
Seeed XIAO BLE Sense - nRF52840
Processor
Nordic nRF52840
The same as XIAO BLE
ARM® Cortex®-M4 with FPU run up to 64 MHz
Wireless
Bluetooth-compatible 5.0/NFC/Zigbee
The same as XIAO BLE
On-chip Memory
1 MB flash and 256 kB RAM
The same as XIAO BLE
Onboard Memory
2 MB QSPI flash
The same as XIAO BLE
Interface
1xUART, 1xIIC, 1xSPI, 1xNFC, 1xSWD,
The same as XIAO BLE
11xGPIO(PWM), 6xADC
Sensors
Onboard PDM digital microphone
Onboard 6-axis IMU
Dimensions
21 x 17.5mm
The same as XIAO BLE
Power
Circuit operating voltage:3.3V@200mA
The same as XIAO BLE
Charging current: 50mA/100mA
Input voltage (VIN): 5V
Standby power consumption:  <5μA
Application
Wearable devices
Wireless connect
Embedded machine learning projects
Perfect for mini Arduino projects
Tiny Machine Learning application
Hardware Pinout
Seeed XIAO Series
Seeeduino XIAO series product selection reference is provided here. The table compares Seeedino XIAO, Seeed XIAO RP2040, Seeed XIAO BLE and Seeed XIAO BLE Sense in detail in terms of processor, memory, interface, etc.
Item
Seeeduino XIAO
Seeed XIAO RP2040
Seeed XIAO BLE
Seeed XIAO BLE Sense
Processor
SAMD21M0+@48MHz
RP2040 Dual-coreM0+@133Mhz
nRF52840M4F@64MHz
nRF52840M4F@64MHz
Wireless Connectivity
N/A
N/A
Bluetooth-compatible 5.0/BLE/NFC
Bluetooth 5.0/BLE/NFC
Memory
32 KB SRAM 256KB FLASH
264 KB SRAM 2MB onboard Flash
256 KB RAM, 1MB Flash 2MB onboard Flash
256 KB RAM,1MB Flash 2MB onboard Flash
Built-in Sensors
N/A
N/A
N/A
6 DOF IMU (LSM6DS3TR-C), PDM Microphone
Interfaces
I2C/UART/SPI
I2C/UART/SPI
I2C/UART/SPI
I2C/UART/SPI
PWM/Analog Pins
11/11
11/4
11/6
11/6
Onboard Buttons
N/A
Reset/ Boot Button
Reset Button
Reset Button
Onboard LEDs
N/A
Full-color RGB/ 3-in-one LED
3-in-one LED/ Charge LED
3-in-one LED/ Charge LED
Battery Charge Chip
N/A
N/A
BQ25101
BQ25101
Programming Languages
Arduino/ CircuitPython
Arduino/ MicroPython/ CircuitPython
Arduino/ MicroPython/ CircuitPython
Arduino/ MicroPython/ CircuitPython