Tone

1. Synopsis

2. Description

3. Return Value

4. Conforming To

5. Examples

6. See Also

¶Synopsis

 void tone(uint8_t pin, unsigned int frequency, unsigned long duration)

¶Description

Generate a tone (square wave) on an I/O pin at frequency Hz. If duration is greater than 0 the tone will play for the specified number of milliseconds. If duration is less than 0 it will be generated indefinitely until noTone() is called. If duration is 0 it acts the same as if noTone() had been called.

¶Return Value

None

¶Conforming To

tone() conforms to the Arduino 1.6.x API.

¶Examples

Play a 1 second 2KHz tone:

 tone(3, 2000, 1000);

¶See Also

noTone()