[Question] noTone method

[aleperno]

Hi,

I'm testing this Library (actually trying to make the cricket prank) on an Arduino "Pro Micro" (Atmega 32u4)

currently using this code

void setup() {
  vol.begin();
}
void loop() {
  vol.tone(3850, 255);
  vol.delay(2500);
  vol.noTone();
  vol.delay(2500);
}

This is not generating any tone (testing both on a speaker and a led). The same code on a Arduino Mega works just fine.

Replacing vol.noTone() with a vol.fadeOut(1) does the trick and it works. I took a look at Volume.cpp and couldn't find anything that could explain this behaviour, moreover nothing that could imply the difference between the boards.

What should I be looking for in order to make noTone work properly?

Thanks in advance

[Edit]

Nevermind... a more thorough google search showed me for some boards there are issues between pwm and tone. Changing the output pin to another pwm (3 instead of 9) made it work.

[heltonbiker]

Perhaps this could be documented somewhwere in this library