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

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 few 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.

Note: PCB is sold separately from the plates/cases. You will either need to purchase the FR4 Plate kit or one of the Acrylic cases to go along with the PCB.

Features

• 3x3 grid of keys
• Ability to add up 3 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

PCB Includes

• Just 1 PCB

Other parts needed

• BDN9 Rev. 2 Case/Plates or Jawn aluminum case
• MX-compatible, Alps, or Choc switches
• Keycaps
• Rotary Encoders (EC11 or EC12) and Knobs
• EC11 is preferred
• Middle layer (Optional)

Build Guide

BDN9 Rev. 2 Build Guide

Case Files

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

Build Video! Stop-motion style.

Default Keymapping:

The default keymapping that the board is pre-programmed with can be found here: Default Keymaps