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nice!nano v2


The nice!nano is a wireless, BLE enabled replacement for the Pro Micro powered by the nRF52840 SoC.


Includes square post headers to install the device, but it is recommended to socket using machine pin sockets.


Requires a 3.7v lithium rechargeable battery. We recommend this Battery as it fits under the header pins.


IMPORTANT: For split builds, you will need to purchase 2 nice!nanos. Due to limitations/restrictions, the nice!nano doesn’t play nice with other micro-controllers. 


NOTE: A battery DOES NOT come with this product as we cannot post batteries in the UK. Please purchase the above battery before using this product.

282 in stock


V2 Change List:

– Reduced quiescent (system idle) power by ~70%
– Increased through hole pad sizes to make soldering easier
– Reduced battery pin size to avoid incorrect installation
– Charge boost added to optionally increase charge rate from ~100mA to ~500mA
– Miscellaneous changes to reduce GPIO failures, improve thermals, and reduce component failures


Information copied from

For more information including build tips, firmware, and more, read the documentation.


  • Mid mount USB-C port making the board a 3.2mm total thickness (thinner than a Pro Micro)
  • nRF52840 chip on board with 1MB of Flash and 256KB of RAM
  • Adafruit Bootloader loaded offering DFU flashing as well as flashing via UF2 storage (similar to dragging a file to a flash drive!)
  • Programmable indicator (blue) LED as well as a charging indicator (orange) LED
  • Battery voltage reader to report battery percentage to main device
  • External power can be cut off using an on board MOSFET saving power from LEDs (each can draw 1mA when off!)
  • 5 extra GPIO pins (3 thru holes and 2 pads on the back) offering a total of 23 GPIO pins
  • 3.3V out of the VCC pin to power external features
  • 32.768 kHz oscillator on board for real-time clock capabilities
  • Clean design with matte black solder mask, immersion gold plating, and Tg 170 FR4 for durability (picture coming soon)