Struct PassiveMonitor 

pub struct PassiveMonitor { /* private fields */ }

Passive monitor for Aranet devices using BLE advertisements.

This allows monitoring multiple devices without establishing connections, which is useful for scenarios where:

• You need to monitor more devices than the BLE connection limit
• Low power consumption is important
• Real-time data isn’t critical (advertisement interval is typically 4+ seconds)

Implementations

impl PassiveMonitor

pub fn new(options: PassiveMonitorOptions) -> Self

Create a new passive monitor with the given options.

pub fn subscribe(&self) -> Receiver<PassiveReading>

Subscribe to passive readings.

Returns a receiver that will receive readings as they are detected.

pub fn subscriber_count(&self) -> usize

Get the number of active subscribers.

pub fn start( self: &Arc<Self>, cancel_token: CancellationToken, ) -> JoinHandle<()>

Start the passive monitor.

This spawns a background task that continuously scans for BLE advertisements and parses Aranet device data.

The task runs until the cancellation token is triggered.

pub async fn get_last_reading( &self, device_id: &str, ) -> Option<AdvertisementData>

Get the last known reading for a device.

pub async fn known_devices(&self) -> Vec<String>

Get all known device IDs.

pub async fn clear_cache(&self)

Clear the reading cache.

Trait Implementations

impl Default for PassiveMonitor

fn default() -> Self

Returns the “default value” for a type.