Yes is that, i m testing now the MB9090 of Jozef and i think that we can control other drum box with this.
The MB9090 app is based on MBSeq V4 and used midi port. I will try to see if the MB9090 works with my new yamaha RX5.
For the the switch and the led i have found some information in the setup_808_default.asm file
For exemple for the button and i m not shure that is the same
i see also 27 button and not 33 :ermm:
SEQ_IO_TABLE_DIN
;; Function name SR# Pin#
;; NOTE: the pins of the 16 general purpose buttons are assigned above, search for DEFAULT_GP_DIN_SR_L (and _R)
DIN_ENTRY SEQ_BUTTON_Scrub, 0, 0
DIN_ENTRY SEQ_BUTTON_Metronome, 0, 0
DIN_ENTRY SEQ_BUTTON_Stop, 5, 5
DIN_ENTRY SEQ_BUTTON_Pause, 0, 0
DIN_ENTRY SEQ_BUTTON_Play, 5, 3
DIN_ENTRY SEQ_BUTTON_Rew, 5, 6
DIN_ENTRY SEQ_BUTTON_Fwd, 5, 2
DIN_ENTRY SEQ_BUTTON_Live, 5, 1
DIN_ENTRY SEQ_BUTTON_F1, 0, 0
DIN_ENTRY SEQ_BUTTON_F2, 0, 0
DIN_ENTRY SEQ_BUTTON_F3, 0, 0
DIN_ENTRY SEQ_BUTTON_F4, 0, 0
DIN_ENTRY SEQ_BUTTON_Shift, 2, 5
DIN_ENTRY SEQ_BUTTON_Alt, 2, 4
DIN_ENTRY SEQ_BUTTON_SectionA, 1, 0
DIN_ENTRY SEQ_BUTTON_SectionB, 1, 5
DIN_ENTRY SEQ_BUTTON_SectionC, 1, 3
DIN_ENTRY SEQ_BUTTON_SectionD, 1, 4
DIN_ENTRY SEQ_BUTTON_LayerGate, 2, 0
DIN_ENTRY SEQ_BUTTON_LayerAux, 2, 1
DIN_ENTRY SEQ_BUTTON_Edit, 6, 4
DIN_ENTRY SEQ_BUTTON_Mute, 5, 0
DIN_ENTRY SEQ_BUTTON_Pattern, 6, 7
DIN_ENTRY SEQ_BUTTON_Song, 6, 5
DIN_ENTRY SEQ_BUTTON_Solo, 0, 0
DIN_ENTRY SEQ_BUTTON_Fast, 0, 0
DIN_ENTRY SEQ_BUTTON_All, 0, 0
;; OPTIONAL! see CHANGELOG.txt
DIN_ENTRY SEQ_BUTTON_Group1, 0, 0
DIN_ENTRY SEQ_BUTTON_Group2, 0, 0
DIN_ENTRY SEQ_BUTTON_Group3, 0, 0
DIN_ENTRY SEQ_BUTTON_Group4, 0, 0
DIN_ENTRY_EOT