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Replying to @buzzkobb

hah no that’s me testing a fix for my design error in rev 1, the lack of pullup resistors. Already have rev 2 in progress which refactors the buttons and adds two resistor arrays (just to the right of the shift register) so this hack won’t be necessary :) https://github.com/joeycastillo/The-Open-Book/tree/master/Open%20Book%20Feather

(original)