Yeah so I want to use the midi TX pin on the waveblaster header of my soundcard to connect to the raspberry pi GPIO. I can't just hook that up directly, since it's running at 5V and the RPi uses 3.3, but is the only thing I need a logic level converter? Or do I need something else? The reason I …

So you'd still need an MPU-401 or the midi->USB adapter? You can't just use midi TX to logic level converter to RPi RX directly?

How are you hooking up the Raspberry Pi? I was thinking to use the 3.3v MIDI output on the Dreamblaster S1 since I already have that and it would save some circuitry, and somehow wiring that up in such a way that I can switch from one to the other. Would that just go into the RX UART pin? Then just …