A trill, generally three very fast notes on updating the fireball for rev 2 beta f12031bb41 updates to rev 2 beta edits README.md file 2537badf28 updates led holes to PCB edge 9.12mm, see https://disti-assets.s3.amazonaws.com/tonar/files/datasheets/16730.pdf 15-pin D-Sub connector edge mount solder cup female x-pin-pitch 2.77mm mounting holes with circular drills, http://www.alps.com/prod/info/E/HTML/Encoder/Incremental/EC12E/EC12E1240405.html .