Hi all, it's my first post here :grin: I am trying to implement multiplexing for a 61 keys music keyboard, 5 octaves plus an additional C key; and selected the Arduino Mega 2560 board model. The 13 keyboard's outputs are the keys grouped by note (C, B, A#,… , E, D#, D plus the additional C). The 1…

Multiplexing a music keyboard

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