Is it safe to have the MIDI I/O at 5V vs 3.5V?


I am designing the MIDI portion of my new device based off of the Daisy Patch. I noticed it is using 3.5V and I wasn’t sure if I could use 5V as all of my other components are either 5V or +/-12V.

Any thoughts or insights here would be appreciated.


I think the MIDI electrical spec is a current loop, rather than some voltage signalling. You change the current by adjusting the resistors - there’s an example (don’t know how up to date it is) here:

MIDI DIN Electrical Specification


Thank you for the info.