Experimenting with ATtiny1626 and Buzzer on TCB

[GeorgeIoak]

Before I reinvent the wheel I figured I'd ask here if anyone had experimented with different sounds on buzzers. I know you can set different frequencies to get different tones (within reason) but has anyone also experimented with changing the duty cycle?

I've done some initial tests with tone and analogWrite but it seems like I'm getting some inconsistent results and I'm not sure if that's a function of the buzzer or the way the code is working.

[apws]

well, over 30years ago on 8080 school computer I did some "synth" by cycling 8 or 16 bits on driven speaker and it definitely had different spectrum/tone, if you can find some FFT simulation on web (only idea) then it can be proven too - so lets try it, sure :)

[GeorgeIoak]

I don't think it has to be that fancy to use FFT, my main goal is to just sound a warning and as I started testing I began to wonder what different sounds I could create if I also varied the duty cycle on these buzzers. I like your thinking outside the box though!

[apws]

piezzo buzzer is probably too much "digital", though... and also "tuned" for some frequency band; having real tiny speaker with simple RC filter at least to limit harmonics up to say 10-15kHz will have some effect for sure - with FFT I mean to simulate/predict the effect, may be simplest in free AudaCity or Reaper editors - may be in some old mobile phone you can find speaker to test ))

[GeorgeIoak]

Well it's definitely not anything pleasant to listen to but I just wanted to try something more than just a beep. Maybe someone will see this and chime in if they've messed around with these before otherwise I'll have to just dig under the hood a bit and run some tests.