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nice!nano rev1.0

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    The nice!nano will be back in stock soon, likely by the end of July/early August.

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


    Some technical affinity is needed to set up and use this product. You will need to use the commandline 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. It will also work on USB power.

    I recommend not to install RGB LEDs on wireless builds, as they take a lot of power and will drain your batteries empty quickly.

    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. Do note that when you intend to use these batteries underneath the controller while socketing the controller, you should use diode legs instead of the Mill Max pins as the pins will be too short. Due to export and shipping restrictions, batteries are not available at splitkb.com.

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


    • 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.

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