@widdly The 60knobs does have opto-isolation, but only on one side in or out. This is MIDI spec so it’s good, but the cheapy USB interface doesn’t have an isolator on either end! The footprint for the part is even on the PCB, they just straight up didn’t put it on! So ridiculous lol
Bastl went with using only an Arduino in their toolchain so no USB to MIDI. Easier to program that way I suppose. No dealing with bootloaders, although when using their previous Arduino toolchains it doesn’t seem like it would have been that difficult for them.
I went with the Mio 1 IO USB interface as a lot of people said it would send SysEx and has been super solid for them.
I really need to get an Axoloti! So versatile. I was thinking about using a Teensy as a USB to DIN MIDI adapter, but that was more effort and not as compact as a commercial one.
I am thinking of building an all in one generative groovebox that incorporates pretty much all of my patches with the 60knobs! My other gear has been neglected way too much since I’ve gotten the Organelle.