BDN9 Rev. 2 - 3x3 9-key Macropad - Rotary Encoder and RGB

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Revision 2 of the board that's a tribute to one of the greatest players ever, the BDN9 is a fun little 3x3 macropad that lets you try out a couple of rotary encoders as well. What can you do with rotary encoders? That's for you to figure out! Use it as up/down, page up/down, volume control, or whatever, get creative. Go win a Super Bowl with it or something.

With Rev. 2, the microcontroller and other components are already soldered on.


  • 3x3 grid of keys
  • Ability to add up to rotary encoders on the top row of the board
  • In-switch RGB LEDs and two underglow RGB LEDs
  • STM32F072 microcontroller
  • Mid-mount USB-C port for lower profile build
  • MX/Alps/Choc switch support

Base Kit Includes:

  • 1 PCB
  • 1 Switch plate
  • 1 Bottom plate
  • 8 4mm M2 screws and 4 6mm M2 standoffs

    Other parts needed:

    Build Log: Not available yet

    Case Files: GitHub - BDN9 Case (Rev. 2 files not ready yet)