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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.
New with Rev. 1.3:
Addition of 3rd encoder option on top row!
New kit option!: Pre-Soldered PCB - Resistors, transistor, RGB LEDs, and reset switch already soldered on
You still need to solder on in-switch LEDs, switches, and Pro Micro-compatible controller
3x3 grid of keys
Ability to use rotary encoders in the upper row of the board