non-defined frequency variable in first Piezo demonstration code

[Vernon Roberts]

I have looked at the code and there is no definition of frequency.

I can add a line of int frequency =440.

Then I compile, but get a constant 440 on the serial printout.

The raw value prints out perfectly.

Is there a line or two of code missing?

All the previous example work.

[Mozzi-users]

Hi Vernon,

you're right, it looks like a line is missing.  

Try something like this after piezo_value has been defined:

int frequency = piezo_value / 2;

or :

int frequency = (int)(piezo_value* 0.3f);

The multiply by a float --might-- work faster than divides.

Does that give a result in a range you can hear?  Let us know what works for you...

Thanks for noticing the missing line!

Tim

[Vernon Roberts]

The solution worked perfectly

Thanks,

Vern

Sent via the Samsung Galaxy S23 Ultra 5G, an AT&T 5G smartphone

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