Struct Debounce 

pub struct Debounce { /* private fields */ }

Cleans a noisy boolean signal by requiring it to hold steady before reporting a change.

A mechanical switch, a relay contact, or a reading crossing a threshold does not flip cleanly: for a few milliseconds it chatters between states. A Debounce reports a change only after the new value has been seen for a set number of consecutive samples, so a button press, a float-switch trip, or a threshold crossing reads as one clean event. This is the standard counter debounce: N stable samples accept a change, and any contrary sample resets the count. At a fixed sample rate, N samples is the debounce time

• sampling every 5 ms with samples of 4 debounces over 20 ms.

Examples

use pamoja_kit::Debounce;

// A button needs three stable samples to register.
let mut button = Debounce::new(3, false);
assert!(!button.update(true)); // first press sample
assert!(!button.update(false)); // the contact bounced back
assert!(!button.update(true)); // counting restarts
assert!(!button.update(true));
assert!(button.update(true)); // three in a row: pressed

Implementations

impl Debounce

pub fn new(samples: u16, initial: bool) -> Self

Creates a debouncer.

Arguments

• samples - consecutive stable samples required to accept a change. 0 and 1 both accept a change on the first contrary sample.
• initial - the starting debounced state.

Returns

A debouncer reporting initial until a change is confirmed.

pub fn update(&mut self, raw: bool) -> bool

Feeds a raw sample and returns the debounced state.

Arguments

• raw - the latest raw signal value.

Returns

The debounced state after this sample. It changes only once a contrary value has held for the required number of samples.

pub fn state(&self) -> bool

Returns the current debounced state.

Trait Implementations

impl Clone for Debounce

fn clone(&self) -> Debounce

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for Debounce

impl Debug for Debounce

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for Debounce

impl PartialEq for Debounce

fn eq(&self, other: &Debounce) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Debounce