Messing with Uno Sounds, not getting what I expected. I know it's a pebcac error, just not sure which one

Projects General Guidance
4

@Paul_KD7HB: Thank you, I will. I can compare it to the signal I expected. I can't see, literally, so the serial plotter doesn't do me much good, but the monitor should be awesome, thank you! I'll post back.

@ToddL1962: There are at least 3 reasons.

  1. I'm still trying to wrap my head around interrupt and timer registers, I thought this would be a fun way to do that.
  2. I'd like to work with the ATTiny85 soon, its my understanding that tone() doesn't work with that.
  3. I also wanted to work with different wave shapes, triangle for example, but tone only produces square waves.