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Thank you! I ended up using RX/TX pairs; I agree that the MIDI library didn't seem like it wanted them split. Everything else makes sense to me except the current loop thing; I'll have to research that further for my own understanding. I appreciate you taking the time, thank you.

Hello! I'm using a Teensy 4.1 and I'm going to add MIDI in/out (both DIN and TRS). I'm copying the schematic from MIDI Library page. Couple of things: 1. The schematic shows pin 8 of the 6N138 being attached to Teensy's VIN and it's labeled as 5V. Just as a learning opportunity: that's because...

I was trying to figure out how to use the Teensy's USB host with the audio board stacked on top, so I thought I'd make a small PCB that's basically just a USB host breakout. The idea is I'll stack the Teensy on the USB board and the audio board on the Teensy; that way I can plug in a USB MIDI...

I didn't want to inconvenience you and thought this would be a good opportunity to learn how to make my own PCB. I've never been more frustrated in my life, just trying to connect two things in EasyEDA.

This is the stupidest question I've ever asked on a forum and I'm sorry. How are you all connecting the Teensy 4.1 to the Audio Shield? I bought a Teensy, the shield, the USB host cable, and every set of headers PJRC sells. However I'm confused at how they're supposed to connect: - If I stack...