Struct HealthStatus 

pub struct HealthStatus {
    pub battery_percent: u8,
    pub heart_rate: Option<u8>,
    pub activity: u8,
    pub alerts: u8,
}

Health status data with LWW semantics

Fields

battery_percent: u8

Battery percentage (0-100)

heart_rate: Option<u8>

Heart rate BPM (optional)

activity: u8

Activity level — non-validated u8 render hint (see HealthStatus::decode). Current emitters use 0=still/standing, 3=PossibleFall; 4+ is reserved for sender-side extensions and receivers treat unknown values as “no animation.”

alerts: u8

Alert status flags

Implementations

impl HealthStatus

pub const ALERT_MAN_DOWN: u8 = 0x01

Alert flag: Man down

pub const ALERT_LOW_BATTERY: u8 = 0x02

Alert flag: Low battery

pub const ALERT_OUT_OF_RANGE: u8 = 0x04

Alert flag: Out of range

pub const ALERT_CUSTOM_1: u8 = 0x08

Alert flag: Custom alert 1

pub fn new(battery_percent: u8) -> Self

Create a new health status

pub fn with_heart_rate(self, hr: u8) -> Self

Set heart rate

pub fn with_activity(self, activity: u8) -> Self

Set activity level

pub fn set_alert(&mut self, flag: u8)

Set alert flag

pub fn clear_alert(&mut self, flag: u8)

Clear alert flag

pub fn has_alert(&self, flag: u8) -> bool

Check if alert is set

pub fn encode(&self) -> Vec<u8>

Encode to bytes (3-4 bytes)

pub fn decode(data: &[u8]) -> Option<Self>

Decode from bytes with validation

Security

Validates battery percentage and heart rate are within physiological bounds. Rejects garbage data that could indicate spoofing or corruption.

Activity is intentionally not validated — it’s a u8 render hint (animation/icon selection), not a security-load-bearing discriminator. Receivers should treat unknown values as “no animation” and keep the rest of the peripheral intact. Re-adding a range check here silently drops entire peripherals (callsign, battery, location) for any peer reporting a value outside the known set; that was the failure mode that motivated this carve-out.

Trait Implementations

impl Clone for HealthStatus

fn clone(&self) -> HealthStatus

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HealthStatus

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

Formats the value using the given formatter.

impl Default for HealthStatus

fn default() -> HealthStatus

Returns the “default value” for a type.

impl PartialEq for HealthStatus

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for HealthStatus