noTone() to stop sound in Arduino - Cheat Sheet & Quick Revision

Recall & Review

beginner

What does the noTone() function do in Arduino?

The noTone() function stops the sound that is currently playing on a pin where tone() was used.

beginner

How do you stop a tone playing on pin 8 in Arduino?

You use noTone(8); to stop the sound on pin 8.

beginner

True or False: noTone() can stop sounds on any pin, even if tone() was not used on it.

False. noTone() only stops sounds started by tone() on that specific pin.

beginner

What happens if you call noTone() on a pin that is not playing any tone?

Nothing happens. It simply ensures no tone is playing on that pin.

beginner

Why would you use noTone() in your Arduino program?

To stop a sound when you want silence or to change the sound being played.

What is the correct way to stop a tone on pin 5?

A noTone(5);

B stopTone(5);

C tone(5, 0);

D endTone(5);

The noTone() function stops the tone on the specified pin.

Which function starts a tone that noTone() can stop?

A playSound()

B tone()

C soundOn()

D beep()

tone() starts a sound on a pin, and noTone() stops it.

If you call noTone() on a pin with no sound, what happens?

A It starts a silent tone

B It stops any sound playing

C It causes an error

D Nothing happens

Calling noTone() on a silent pin does nothing.

Can noTone() stop sounds started by other functions?

A No, only sounds started by <code>tone()</code>

B Yes, but only on pin 13

C Yes, any sound

D No, it only pauses sounds

noTone() only stops sounds started by tone().

Which Arduino pin mode is required to use tone() and noTone()?

A INPUT

B INPUT_PULLUP

C OUTPUT

D ANALOG

The pin must be set as OUTPUT to play and stop tones.

Explain how noTone() works and when you would use it in an Arduino project.

Think about how you stop a sound after starting it.

Describe the relationship between tone() and noTone() functions.

One starts sound, the other stops it.