noTone()
[Advanced I/O]
Description
Stops the generation of a square wave triggered by tone(). Has no effect if no tone is being generated.
Syntax
noTone(pin)
Parameters
pin: the Arduino pin on which to stop generating the tone
Returns
Nothing
Notes and Warnings
If you want to play different pitches on multiple pins, you need to call noTone() on one pin before calling tone() on the next pin.