[−][src]Trait teensyduino::sound::Tone

pub trait Tone {
    fn tone(&self, frequency: u16);

    fn tone_with_duration(&self, frequency: u16, duration: u64);

    fn no_tone(&self);
}

Allow a pin to output square wave notes asynchronously using the IntervalTimer behind the scenes.

See Also

Required methods

fn tone(&self, frequency: u16)

Generates a square wave of the specified frequency (and 50% duty cycle) on a pin. A duration can be specified, otherwise the wave continues until a call to noTone(). The pin can be connected to a piezo buzzer or other speaker to play tones.

Only one tone can be generated at a time. If a tone is already playing on a different pin, the call to tone() will have no effect. If the tone is playing on the same pin, the call will set its frequency.

Use of the tone() function will interfere with PWM output on pins 3 and 11 (on boards other than the Mega). It is not possible to generate tones lower than 31Hz. For technical details, see Brett Hagman’s notes.

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.

See Also

fn tone_with_duration(&self, frequency: u16, duration: u64)

Generates a square wave of the specified frequency (and 50% duty cycle) on a pin. A duration can be specified, otherwise the wave continues until a call to noTone(). The pin can be connected to a piezo buzzer or other speaker to play tones.

Only one tone can be generated at a time. If a tone is already playing on a different pin, the call to tone() will have no effect. If the tone is playing on the same pin, the call will set its frequency.

Use of the tone() function will interfere with PWM output on pins 3 and 11 (on boards other than the Mega). It is not possible to generate tones lower than 31Hz. For technical details, see Brett Hagman’s notes.

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.

See Also

fn no_tone(&self)

Stops the generation of a square wave triggered by tone(). Has no effect if no tone is being generated.

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.

See Also

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Implementors

impl Tone for Pin[src]

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