Adding more midi ports to Axolotl

#1

What's the simplest way to add more midi ports to the Axolotl? I'm looking for as compact a solution as possible. If I can have 3 midi out total that would be terrific.

#2

so you only need additional midi outs?

#3

Hugo has an object that can add an extra midi in and midi out on serial pins PA3 and PA2. Here you can find useful info on how to add an extra midi in and out. You can also find hugo's the example code in Axoloti patcher here: File>Liberary>Community>hug>mid_io>extra_midi_io

I have read in this forum that next major update of Axoloti firmware will support USB hubs. Not a 100% sure but I think you will be able to use a usb midi interface with more din midi ios with that hub.

#4

Thank you very much. I'm also looking forward to being able to use midi over USB in the future. That will be very convenient.

#5

Extra in and out would be great but at the very minimum extra outs would add a lot of convenience to the device overall. I have to use it on a relatively compact pedalboard rig setup so anyway to reduce the necessity of extra hubs and breakout boxes is a big win.

#6

for extra midi outputs you can also build something like a midi thru which is simply a hex buffer and some resistors. this will give you easily 5 extra midi outs. i assume you want 5 physical ports but you don't need to send 5 times 16 different channels, right? (the midi output would be the same on all the 5 outputs with that solution)

there are many midi thru schematics on the net. you can build a dedicated box or integrate it with the axoloti, then you can even omit the optocoupler.