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

DISCLAIMER:

Some technical affinity is needed to set up and use this product. You will need to use the command line and may need to modify configuration files for it to work with your keyboard.

To use this product, you'll need to purchase a power source, such as a rechargeable 3.7V lithium battery (size 301230 or 301228 will fit between the controller and PCB). It will also work on USB power.

Using this controller for a split keyboard? You'll need two nice!nano controllers.

Includes square post headers for assembly. It is recommended to socket using Mill Max Low Profile Sockets.

Using this microcontroller requires an external power source, such as a 3.7v lithium rechargeable battery. One example of a compatible battery is the 301230 lithium battery.

Due to export and shipping restrictions, batteries are not available at splitkb.com.

We recommend using a set of sockets with headers per controller to allow space for the battery.

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

Features

• The mid mount USB-C port makes this microcontroller board 3.2mm thin, saving space when compared to the Pro Micro;
• nRF52840 chip on board with 1MB of Flash and 256KB of RAM;
• Comes preloaded with the Adafruit Bootloader, offering DFU flashing as well as flashing via UF2 storage (similar to dragging a file to a flash drive);
• Programmable blue indicator LED as well as an orange charging indicator LED;
• Battery voltage reader to report battery percentage to main device;
• Save power by cutting off external power 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.

Revision 2.0 changes

• 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
• Several small changes to increase stability and reliability: reduce GPIO failures, improve thermals, and reduce component failures

Options

• It's recommended to get Mill Max Low Profile Sockets with your nice!nano, so you can more easily reuse or replace it when needed.
• You can choose to get the Wireless Controller Expansion Bundle, which contains two power switches and two JST jacks. You'll only need one bundle per two nice!nanos, unless you want to have a few extras.
  

Read more

• To read about how to use the nice!nano, check out Nice Technologies' documentation on the nice!nano.
• For technical support, consider joining Nice Technologies' Discord server.
• Why would I want to socket my microcontroller? for reasons why you could choose to socket your microcontroller.
  
• How do I socket a microcontroller? for a guide on how you can socket your microcontroller.

Warning: Please pay attention to the polarity of your battery. Failing to adhere to the battery polarity may result in battery failure, which may include fire or a risk of explosion. These are not toys and need to be treated seriously and with proper caution.