Seeed Studio XIAO nRF52840 Sense

This is a compact microcontroller board from Seeed Studio based on the Nordic nRF52840 MCU. The nRF52840 features Bluetooth 5.0, NFC, and ZigBee connectivity. Coupled with the 32-bit ARM Cortex-M4 processor, the board can be integrated into many demanding applications. The board is very compact with a size of 17.5x21mm and can therefore be easily installed in small devices or projects. It can be programmed with MicroPython, Arduino or CircuitPython. 

Features: 

• Built-in digital PDM microphone
• Built-in 6-axis IMU
• Nordic nRF52840 MCU  
• 32-bit ARM Cortex-M4 processor  
• Compact size of 17.5x21mm 
• Battery connection with charging chip 
• USB-C 
• Bluetooth 5.0, NFC, and ZigBee connectivity 
• UART, I2C, SPI, NFC, and SWD interface 
• Reset and Boot buttons 

Documentation: 

• User Guide
• Xiao Overview

Pinout XIAO nRF52840:

Technical Details: 

• Manufacturer: Seedstudio 
• Manufacturer SKU: 102010469 
• Chip: nRF52840 
• CPU: 32-bit ARM Cortex-M4 
• Clock Frequency: 64MHz 
• SRAM: 256KB 
• Flash: 1MB 
• USB Interface: USB-C 
• Voltage: 3.3V 
• I/O Pins: 11x GPIO (PWM), 6xADC 
• Buttons: 1x Reset, 1x Boot 
• Dimensions: 17.5 x 21 x 5mm 
• Weight: 4g 

Package includes: 

• 1x Seeed Studio XIAO nRF52840 Sense 
• 2x 7pin header