sorry for double posting, i understand now why i’d need the optocoupler, but i’m confused on another part, why would i need to modify the code? does the direct way through the rx/tx work differently than with some form of usb host?
ok, thanks for your reply. i’m kind of new to this, but i think i should be able to do this. now to clarify, i would for example take a midi socket and solder them to the respective tx/rx connections on a micro-b plug? and this doesn’t work already from usb->usb, because most usb-powered midi keyboards dont directly transmit data, but are some kind of proprietary device that needs a driver to pass through the midi signal?
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