BDN9 - 3x3 9-key Macropad - Rotary Encoder Support
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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.
Also, this build doesn't require any diodes, simplifying the build.
3x3 grid of keys
Ability to use rotary encoders in the upper two corners of the board