So basically, I’m an idiot. There’s no way my method of “doubling up” on LEDs is going to work.
No matter how you slice it, there’s no way to light up just 1 LED.
I’m too tired to think about this anymore, but my solution will definitely involve some shift registers or a bigger micro controller.
why dont you try charlie-plexing? is a bit complicated because is not so obvious, but you can save a lot of pins from your microcontroler! charlie plexing rules!
Huh, I’ve heard of Charlieplexing but never really looked into it. This could work really well. Thanks for the tip!