Struct CurrentReading

pub struct CurrentReading {

    pub co2: u16,
    pub temperature: f32,
    pub pressure: f32,
    pub humidity: u8,
    pub battery: u8,
    pub status: Status,
    pub interval: u16,
    pub age: u16,
    pub captured_at: Option<OffsetDateTime>,
    pub radon: Option<u32>,
    pub radiation_rate: Option<f32>,
    pub radiation_total: Option<f64>,
    pub radon_avg_24h: Option<u32>,
    pub radon_avg_7d: Option<u32>,
    pub radon_avg_30d: Option<u32>,
}

Current reading from an Aranet sensor.

This struct supports all Aranet device types:

• Aranet4: CO2, temperature, pressure, humidity
• Aranet2: Temperature, humidity (co2 and pressure will be 0)
• AranetRn+ (Radon): Radon, temperature, pressure, humidity (co2 will be 0)
• Aranet Radiation: Radiation dose, temperature (uses radiation_* fields)

Fields

co2: u16

CO2 concentration in ppm (Aranet4 only, 0 for other devices).

temperature: f32

Temperature in degrees Celsius.

pressure: f32

Atmospheric pressure in hPa (0 for Aranet2).

humidity: u8

Relative humidity percentage (0-100).

battery: u8

Battery level percentage (0-100).

status: Status

CO2 status indicator.

interval: u16

Measurement interval in seconds.

age: u16

Age of reading in seconds since last measurement.

captured_at: Option<OffsetDateTime>

Timestamp when the reading was captured (if known).

This is typically set by the library when reading from a device, calculated as now - age.

radon: Option<u32>

Radon concentration in Bq/m³ (AranetRn+ only).

radiation_rate: Option<f32>

Radiation dose rate in µSv/h (Aranet Radiation only).

radiation_total: Option<f64>

Total radiation dose in mSv (Aranet Radiation only).

radon_avg_24h: Option<u32>

24-hour average radon concentration in Bq/m³ (AranetRn+ only).

radon_avg_7d: Option<u32>

7-day average radon concentration in Bq/m³ (AranetRn+ only).

radon_avg_30d: Option<u32>

30-day average radon concentration in Bq/m³ (AranetRn+ only).

Implementations

impl CurrentReading

pub fn from_bytes(data: &[u8]) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes (Aranet4 format).

The byte format is:

• bytes 0-1: CO2 (u16 LE)
• bytes 2-3: Temperature (u16 LE, divide by 20 for Celsius)
• bytes 4-5: Pressure (u16 LE, divide by 10 for hPa)
• byte 6: Humidity (u8)
• byte 7: Battery (u8)
• byte 8: Status (u8)
• bytes 9-10: Interval (u16 LE)
• bytes 11-12: Age (u16 LE)

Errors

Returns ParseError::InsufficientBytes if data contains fewer than MIN_CURRENT_READING_BYTES (13) bytes.

pub fn from_bytes_aranet4(data: &[u8]) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes (Aranet4 format).

This is an alias for from_bytes for explicit device type parsing.

Errors

Returns ParseError::InsufficientBytes if data contains fewer than MIN_CURRENT_READING_BYTES (13) bytes.

pub fn from_bytes_aranet2(data: &[u8]) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes (Aranet2 format).

The byte format is:

• bytes 0-1: Temperature (u16 LE, divide by 20 for Celsius)
• byte 2: Humidity (u8)
• byte 3: Battery (u8)
• byte 4: Status (u8)
• bytes 5-6: Interval (u16 LE)

Errors

Returns ParseError::InsufficientBytes if data contains fewer than MIN_ARANET2_READING_BYTES (7) bytes.

pub fn from_bytes_radon(data: &[u8]) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes (Aranet Radon GATT format).

The byte format is:

• bytes 0-1: Device type marker (u16 LE, 0x0003 for radon)
• bytes 2-3: Interval (u16 LE, seconds)
• bytes 4-5: Age (u16 LE, seconds since update)
• byte 6: Battery (u8)
• bytes 7-8: Temperature (u16 LE, divide by 20 for Celsius)
• bytes 9-10: Pressure (u16 LE, divide by 10 for hPa)
• bytes 11-12: Humidity (u16 LE, divide by 10 for percent)
• bytes 13-16: Radon (u32 LE, Bq/m³)
• byte 17: Status (u8)

Extended format (47 bytes) includes working averages:

• bytes 18-21: 24h average time (u32 LE)
• bytes 22-25: 24h average value (u32 LE, Bq/m³)
• bytes 26-29: 7d average time (u32 LE)
• bytes 30-33: 7d average value (u32 LE, Bq/m³)
• bytes 34-37: 30d average time (u32 LE)
• bytes 38-41: 30d average value (u32 LE, Bq/m³)
• bytes 42-45: Initial progress (u32 LE, optional)
• byte 46: Display type (u8, optional)

Note: If an average value >= 0xff000000, it indicates the average is still being calculated (in progress) and is not yet available.

Errors

Returns ParseError::InsufficientBytes if data contains fewer than MIN_RADON_GATT_READING_BYTES (18) bytes.

pub fn from_bytes_radiation(data: &[u8]) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes (Aranet Radiation GATT format).

The byte format is:

• bytes 0-1: Unknown/header (u16 LE)
• bytes 2-3: Interval (u16 LE, seconds)
• bytes 4-5: Age (u16 LE, seconds)
• byte 6: Battery (u8)
• bytes 7-10: Dose rate (u32 LE, nSv/h, divide by 1000 for µSv/h)
• bytes 11-18: Total dose (u64 LE, nSv, divide by 1_000_000 for mSv)
• bytes 19-26: Duration (u64 LE, seconds) - not stored in CurrentReading
• byte 27: Status (u8)

Errors

Returns ParseError::InsufficientBytes if data contains fewer than MIN_RADIATION_READING_BYTES (28) bytes.

pub fn from_bytes_for_device( data: &[u8], device_type: DeviceType, ) -> Result<Self, ParseError>

Parse a CurrentReading from raw bytes based on device type.

This dispatches to the appropriate parsing method based on the device type.

Errors

Returns ParseError::InsufficientBytes if data doesn’t contain enough bytes for the specified device type.

pub fn with_captured_at(self, now: OffsetDateTime) -> Self

Set the captured timestamp to the current time minus the age.

This is useful for setting the timestamp when reading from a device.

pub fn builder() -> CurrentReadingBuilder

Create a builder for constructing CurrentReading with optional fields.

Trait Implementations

impl Clone for CurrentReading

fn clone(&self) -> CurrentReading

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CurrentReading

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

Formats the value using the given formatter.

impl Default for CurrentReading

fn default() -> Self

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CurrentReading

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for CurrentReading

fn eq(&self, other: &CurrentReading) -> 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 Serialize for CurrentReading

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Copy for CurrentReading

impl StructuralPartialEq for CurrentReading