Reference for Wiring version 0024+. If you have a previous version, use the reference included with your software. If you see any errors or have any comments, let us know.
| Name |
tone() |
| Examples |
void setup() {
tone(0, 400, 200); // generates a 400Hz tone in output pin 0 with 200ms of duration
}
void loop() {
}
void setup() {
tone(0, 400, -1); // generates a 400Hz tone in output pin 0 with infinite duration
}
void loop() {
} |
| Description |
The tone() generates a tone of a determined frequency in hertz on a specific pin with a specified duration. The tone command uses timer2 to generate the tone accurately. Use a negative number in duration for infinite duration. |
| Syntax |
tone(pin, frequency, duration) |
| Parameters |
| pin |
int the PWM output pin number in which the pulse will be generated. It can only be on 29, 30 or 31 PWM output pins |
| frequency |
int: the frequency for the pulse in Hertz |
| duration |
int: the tone duration in milliseconds or a negative number for infinite duration |
|
| Returns |
None |
| Usage |
Application |
| Related |
noTone()
|
Updated on January 26, 2010 11:24:28pm PST
