very excited about this, i dreamt of doing this years ago when i read about FPGAs being able to replicate old hardware and here now it is.
So my interest is mostly music focused and ive been pouring over the possibilities of a bit more capable MIDI interface. Ive been looking over the history of 3rd party stuff and nothing jumps out as easy to adapt to MiSTer so my idea is this: MIDI out to a 1 to 16 MIDI mult with a thru thrown in for good measure. Pack it up using the arduino header for 3v3 and 5v and the two pins used by the digital board. Do two boards:
3.5mm TRS headers, one with 8 outs (4 on top, 4 bottom) + In and thru
8 more outs that stack on board 1
any input is welcome.
Re: Lets Make Some New MIDI Hardware
Posted: Sun Dec 03, 2023 6:39 pm
by altitude909
so on second thought, making a shield for this doesnt make any sense since a majority of people already have the user port so i'll simply go stand alone. This is the basic premise but scaled up
mrmidi.png (164.49 KiB) Viewed 4674 times
Re: Lets Make Some New MIDI Hardware
Posted: Sun Dec 03, 2023 8:24 pm
by callanabrown
I'm wondering why you would need so many physical ports? Most of my gear is daisy chained with midi thrus, with each piece of gear on a separate channel.
Re: Lets Make Some New MIDI Hardware
Posted: Sun Dec 03, 2023 8:28 pm
by altitude909
so you dont have to daisy chain Couple of those boards should be landing here soon so I'll see how it works.
My other idea is to get some macro keyboards to make some quick launch controls like transport and whatever shortcuts. there are 5x2 ones on amazon for $25 that will take relegendable keycaps
Re: Lets Make Some New MIDI Hardware
Posted: Tue Dec 05, 2023 12:34 am
by altitude909
And done
received_347015548024692.jpeg (75.01 KiB) Viewed 4299 times
Re: Lets Make Some New MIDI Hardware
Posted: Sat Dec 09, 2023 11:36 pm
by altitude909
And sucess! So one input (either TRS A or TRS B) that goes into the hc14 for the thru and midi in and the midi outs multed to 3 outputs. If there's and interest, ill jlc some populated boards and make a panel for it.
17021649576512090673265908011095.jpg (2.14 MiB) Viewed 3919 times
Re: Lets Make Some New MIDI Hardware
Posted: Thu Dec 21, 2023 10:05 pm
by altitude909
Behold!
MIDI out -> 16x MIDI outs
1 PSIMIDI MIDI In
1 MIDI Thru
The way it works:
MiSTer MIDI out is just Multed and level shifted to the outputs via Hex Schmitt−Trigger
Board 1: MIDI IN, USB C socket -> MiSTer user port, MIDI Thru, 3x MIDI outs
Board 2: Adds 5x MIDI outs
Board 3: Adds 8x MIDI outs