Hex drum is a midi-capable port of the Big Button sequencer by Look Mum No Computer.
The code is completely rewritten for easier editing and optimizations and to add a few new features:
- MIDI input (clock and note-to-gate)
- Note audition
- 32nd note fills
- Clear all/shift all banks
- Mute/solo
MIDI input is received by default on Channel 16 and notes received on 6 standard MIDI GM drum notes (C1, D1, E1, F1, G1, A1) are transmitted to the six gate outputs.
MIDI input is acheived through a standard 6n138 optocoupler on a small daughterboard. MIDI THRU can be added with a 2n3904 transistor and a few extra resistors.
