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BBS24
BBS24 is a small keyboard scanner, especially designed for bass and chord section of MIDI accordion. It holds 24 contact inputs, as well as 3 analog inputs and features very small size. Wires to contacts must be soldered to the 24 pads evenly located for easier soldering. Usually there's not much space in accordion to fit regular scanner with tall pin headers, so for any case where you need small form factor, BBS24 is the way to go.
Keys must have one pole of each contact connected to GND (negative side of whole MIDI system's power supply). As any other scanner board, this one cannot work just by itself, but it needs one of the master controllers to operate. Features:
See the layout of all connections in the board |