Framework (A-Z)

Reference for Wiring version 1.0 Build 0100+ If you have a previous version, use the reference included with your software. If see any errors or have any comments, let us know.

Name

tone()
Examples 
void setup() {
  // generates a 400Hz tone in output pin 8 with 2000ms of duration
  tone(8, 400, 2000); 
}

void loop() {

}

void setup() {
  // generates a 415Hz tone in output pin 8 with infinite duration
  tone(8, NOTE_GS4); 
}

void loop() {

}
Description The tone() generates a tone of a determined frequency in hertz on a specific pin for a specified duration. The tone command uses timer resources to generate the tone accurately. Use a negative number in duration for infinite duration. If a previous tone command is playing, and a new pin is specified, and tonePolyphony has been set to > 1, and there are available timers, a simultaneous tone will be played on the new pin.
Syntax 
tone(pin, frequency, duration)
tone(pin, frequency)
Parameters
pin int the output pin number in which the tone will be generated.
frequency int: the frequency for the pulse in Hertz. The following pitch frequencies are predefined to use with tone: NOTE_B0=31, NOTE_C1=33, NOTE_CS1=35, NOTE_D1=37, NOTE_DS1=39, NOTE_E1=41, NOTE_F1=44, NOTE_FS1=46, NOTE_G1=49, NOTE_GS1=52, NOTE_A1=55, NOTE_AS1=58, NOTE_B1=62, NOTE_C2=65, NOTE_CS2=69, NOTE_D2=73, NOTE_DS2=78, NOTE_E2=82, NOTE_F2=87, NOTE_FS2=93, NOTE_G2=98, NOTE_GS2=104, NOTE_A2=110, NOTE_AS2=117, NOTE_B2=123, NOTE_C3=131, NOTE_CS3=139, NOTE_D3=147, NOTE_DS3=156, NOTE_E3=165, NOTE_F3=175, NOTE_FS3=185, NOTE_G3=196, NOTE_GS3=208, NOTE_A3=220, NOTE_AS3=233, NOTE_B3=247, NOTE_C4=262, NOTE_CS4=277, NOTE_D4=294, NOTE_DS4=311, NOTE_E4=330, NOTE_F4=349, NOTE_FS4=370, NOTE_G4=392, NOTE_GS4=415, NOTE_A4=440, NOTE_AS4=466, NOTE_B4=494, NOTE_C5=523, NOTE_CS5=554, NOTE_D5=587, NOTE_DS5=622, NOTE_E5=659, NOTE_F5=698, NOTE_FS5=740, NOTE_G5=784, NOTE_GS5=831, NOTE_A5=880, NOTE_AS5=932, NOTE_B5=988, NOTE_C6=1047, NOTE_CS6=1109, NOTE_D6=1175, NOTE_DS6=1245, NOTE_E6=1319, NOTE_F6=1397, NOTE_FS6=1480, NOTE_G6=1568, NOTE_GS6=1661, NOTE_A6=1760, NOTE_AS6=1865, NOTE_B6=1976, NOTE_C7=2093, NOTE_CS7=2217, NOTE_D7=2349, NOTE_DS7=2489, NOTE_E7=2637, NOTE_F7=2794, NOTE_FS7=2960, NOTE_G7=3136, NOTE_GS7=3322, NOTE_A7=3520, NOTE_AS7=3729, NOTE_B7=3951, NOTE_C8=4186, NOTE_CS8=4435, NOTE_D8=4699 and NOTE_DS8=4978.
duration int: the tone duration in milliseconds or nothing to play infinitely (until noTone() method called, or new tone() called)
Returns None
Usage Application
Related tone()
noTone()
setTonePolyphony()
getTonePolyphony()
Updated on July 07, 2011 11:09:15pm PDT

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