Required parts for MB808:
1 x MBHP_CORE, stuffed with PIC18F4620
2 x MBHP_DINX4 (only 6 74HC165 shift registers used)
2 x MBHP_DOUTX4 (7 74HC595 shift registers used)
1 rotary encoder (for tempo, could also be used for additonal purposes in future)
33 buttons
35 LEDs (33 could be integrated into buttons, 2 additional LEDs to display selected layer and record mode)
BASE BOARD : BD, SD, MA, CP
VOICE BOARD : HHs, CY, CB
PERC BOARD : TOMS/CONGAS, RS/CL
Documents how to link the stuff: