Struct Threshold 

pub struct Threshold {
    pub level: u16,
    pub hold_ms: u16,
    pub variation_only: bool,
}

Parameters of Reporting::ThresholdBased.

The node keeps a slow running average of the channel’s amplitude profile over up to 32 sampled subcarriers, and scores every measurement by how far its profile’s shape departs from that average, on a 0..=65535 scale. Both profiles are normalised by their own totals first, so the receiver’s per-frame gain changes score nothing; 65535 is a profile with no overlap at all. A measurement scoring at least level is reported and opens a hold_ms window in which every measurement is reported, so a movement is captured whole rather than as its loudest frames.

Calibrate level on your own link. Raw 8-bit estimates carry per-frame quantisation noise, so a still room does not score zero. Measured on two ESP32-C5s at HE20 (245 subcarriers, 100 frames/s, an empty room), single-frame scores had a median of ~2700 and a 99th percentile of ~4300. Run the node with variation_only first, read the scores it reports while nothing moves, and set level comfortably above their high percentile; the level that separates motion from stillness has not been measured here and depends on the room.

Fields

level: u16

Score at or above which a measurement is reported.

hold_ms: u16

How long to keep reporting after a measurement crosses level, in milliseconds.

variation_only: bool

Report only the score, as a CsiPayload::Variation, instead of the full measurement. The lightest report a node can send.

Implementations

impl Threshold

pub const fn new(level: u16, hold_ms: u16) -> Self

Report full measurements scoring at least level, holding for hold_ms.

Examples found in repository

examples/sniffer.rs (line 61)

const EXAMPLE_THRESHOLD: Threshold = Threshold::new(6000, 500);

pub const fn variation_only(self) -> Self

Report only the score, not the measurement.

Trait Implementations

impl Clone for Threshold

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Threshold

impl Debug for Threshold

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

Formats the value using the given formatter.

impl Eq for Threshold

impl PartialEq for Threshold

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Threshold