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Welcome to the midi8d wiki!

MIDI8d is a 8 Gate outputs module, with 1 MIDI input. It can be programmed with different Arduino skectches, and be transformed into either a 8 addressable MIDI Drum outputs, or a MIDI clock output.

midi_8_drum_gates.ino

The midi_8_drum_gates.ino sketch reacts to incoming MIDI messages on channel 10 (usually dedicated to drums) and activates 8 independent drum modules. By default, each Gate Output is activated by NoteOn and NOteOff MIDI messages, from Key #36 (C1) up to key #43 (G1).

The MIDI channel and the starting Key number can be set into code.

Gate 1	C1	#36
Gate 2	C#1	#37
Gate 3	D1	#38
Gate 4	D#1	#39
Gate 5	E1	#40
Gate 6	F1	#41
Gate 7	F#1	#42
Gate 8	G1	#43

See:

• https://www.midi.org/specifications-old/item/gm-level-1-sound-set
• https://musescore.org/sites/musescore.org/files/General%20MIDI%20Standard%20Percussion%20Set%20Key%20Map.pdf)