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Heyo! I'm trying to hook up a series of buttons to my Teensy 4.0, but I didn't have enough pins for the amount of buttons I'm using (trying to create an instrument with 2 octaves, that's 23 buttons total, the 24th is the root note that plays if no button is pressed), so I got an SX1509 Expander...

Scratch that, I found a solution! I don't know why this works but it does so I'm happy :D

Alright, I tried that, fiddled around some more, not much luck though. It was crystal clear for a split second before it went back to noise :(

Alright, that helped! Progress has been made! I've attached photos of the new setup. Now, while the noise is still happening, if I plug my headphones in only partially - around 75% - I can hear the guitar sounds running from the recommended example. However, any more or less than that results...

Here's what I've got. The more I look into this the more I feel like it's the wires lol. I can make a diagram of the exact connections if that would help, I know it's a bit hard to tell what's what from the photos.

Hey all! I'm a complete beginner, but even when I've gone to someone I know who's more knowledgeable, he couldn't figure this out either. I'm trying to create an instrument using Teensy's Audio library. I'm currently in the very basic stages; I'm just trying to get the audio shield to play a...