Struct Buzzer 

pub struct Buzzer<I2C> { /* private fields */ }

Driver for the Modulino Buzzer module.

Example

use modulino::{Buzzer, Note};

let mut buzzer = Buzzer::new(i2c)?;

// Play a tone at 440 Hz for 500ms
buzzer.tone(440, 500)?;

// Play a note
buzzer.play_note(Note::C5, 1000)?;

// Stop the tone
buzzer.no_tone()?;

Implementations

impl<I2C, E> Buzzer<I2C>

where I2C: I2c<Error = E>,

pub const MIN_FREQUENCY: u16 = 180

Minimum supported frequency in Hz.

pub fn new(i2c: I2C) -> Result<Self, E>

Create a new Buzzer instance with the default address.

pub fn new_with_address(i2c: I2C, address: u8) -> Result<Self, E>

Create a new Buzzer instance with a custom address.

pub fn address(&self) -> u8

Get the I2C address.

pub fn tone(&mut self, frequency: u16, duration_ms: u16) -> Result<(), E>

Play a tone at the specified frequency.

Arguments

• frequency - The frequency in Hz (minimum 180 Hz, or 0 for silence)
• duration_ms - The duration in milliseconds (0xFFFF for indefinite)

Note

Frequencies below 180 Hz (except 0) are not supported by the hardware.

pub fn tone_continuous(&mut self, frequency: u16) -> Result<(), E>

Play a tone indefinitely until stopped.

pub fn play_note(&mut self, note: Note, duration_ms: u16) -> Result<(), E>

Play a musical note.

Arguments

• note - The note to play
• duration_ms - The duration in milliseconds

pub fn no_tone(&mut self) -> Result<(), E>

Stop playing any tone.

pub fn stop(&mut self) -> Result<(), E>

Alias for no_tone().

pub fn release(self) -> I2C

Release the I2C bus.