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This board is most usable in organ emulators as stops/pistons addition to a MIDI set built with MRG boards. It takes care of 24 contacts and every one of them is paired with LED driver. This is to enable the use of momentary normally-open switches to work as bistable lighted stops/pistons. One press of a button lights up associated LED, and MRG board sends appropriate MIDI message. Next button press turns the light off and again MRG generates MIDI. Part of the inputs (or all) can be assigned to work in 1-of-many mode, where pressing one button lights up associated LED, and turns off the other ones in the group. Although LITSW is mostly designed for stop control, it can be used as any other scanner/expander
As any other scanner board, this one cannot work just by itself, but it needs one of the master controllers to operate.
Features:
- scans 24 contacts
- drives 24 LEDS at about 3mA (high efficiency LEDs recommended)
- user defined split point for independent, and 1-of-many group of buttons
- can be used as banks/programs unit, with rows of buttons for "tens" and "units"
- ability to be used as CC array - every input can then have independent MIDI event and channel
- usable with MRG2, MRG3, POT32, MBBS, limited functionality when paired with MIDI128 or BBS32
- dimensions: 93x22mm (3.7''x0.9'')
- more marketing talk
The board has 3 black connectors for user devices, as shown in the photo above. Each of them covers 8 pairs of button+LED according to the following schematic:
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