I am working on a song with multiple buzzers and I’ve downloaded a library that allows me to play two simultaneous tones:
According to their manual, my Uno r3 should be able to play 3 simultaneous tones, since it has an ATmega328 chip, with three internal timers. My friend told me that one of these timers is a system timer, and it cannot be used for anything except for system processes. Is there any way around this while (preferably) still using the above mentioned library?
I already know of a couple libraries in which I can play several simultaneous tones by “hacking” one of the internal timers:
However, both of these seem especially confusing, and I’d rather know what I’m working with before using it. I would also be OK if someone told me how to use these libraries, and what are the different things I can do with it.