Struct bmp390::Measurement

pub struct Measurement {
    pub pressure: Pressure,
    pub temperature: ThermodynamicTemperature,
    pub altitude: Length,
}

A single measurement from the Bmp390 barometer.

Measurements utilize the uom crate to provide automatic, type-safe, and zero-cost units of measurement.

Example

let measurement = bmp390::Measurement {
   pressure: Pressure::new::<pascal>(90_240.81),
   temperature: ThermodynamicTemperature::new::<degree_celsius>(25.0),
   altitude: Length::new::<meter>(1000.0),
};

defmt::info!("Measurement: {}", measurement);

Note: these examples show creation of Measurement structs directly. In practice you would receive these from Bmp390::measure.

Conversion between units is easy with the uom crate. For example, to convert to imperial units:

use uom::si::pressure::millimeter_of_mercury;
use uom::si::thermodynamic_temperature::degree_fahrenheit;
use uom::si::length::foot;

// "Pressure: 676.9753 mmHg, Temperature: 77 °F, Altitude: 3280.84 feet"
defmt::info!("Pressure: {} mmHg, temperature: {} °F, altitude: {} feet",
    measurement.pressure.get::<millimeter_of_mercury>(),
    measurement.temperature.get::<degree_fahrenheit>(),
    measurement.altitude.get::<foot>());

Fields

pressure: Pressure

The pressure as a Pressure, allowing for easy conversion to any unit of pressure.

Example

use uom::si::pressure::millimeter_of_mercury;
let measurement = bmp390::Measurement {
   pressure: Pressure::new::<pascal>(90_240.81),
   temperature: ThermodynamicTemperature::new::<degree_celsius>(25.0),
   altitude: Length::new::<meter>(1000.0),
};

// "Pressure: 676.9753 mmHg"
defmt::info!("Pressure: {} mmHg", measurement.pressure.get::<millimeter_of_mercury>());

temperature: ThermodynamicTemperature

The temperature as a ThermodynamicTemperature, allowing for easy conversion to any unit of temperature.

Example

use uom::si::thermodynamic_temperature::degree_fahrenheit;
let measurement = bmp390::Measurement {
   pressure: Pressure::new::<pascal>(90_240.81),
   temperature: ThermodynamicTemperature::new::<degree_celsius>(25.0),
   altitude: Length::new::<meter>(1000.0),
};

// "Temperature: 77 °F"
defmt::info!("Temperature: {} °F", measurement.temperature.get::<degree_fahrenheit>());

altitude: Length

The altitude as a Length, allowing for easy conversion to any unit of length.

Example

use uom::si::length::foot;
let measurement = bmp390::Measurement {
   pressure: Pressure::new::<pascal>(90_240.81),
   temperature: ThermodynamicTemperature::new::<degree_celsius>(25.0),
   altitude: Length::new::<meter>(1000.0),
};

// "Length: 3280.84 feet"
defmt::info!("Length: {} feet", measurement.altitude.get::<foot>());

Trait Implementations

impl Clone for Measurement

fn clone(&self) -> Measurement

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Measurement

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

Formats the value using the given formatter.

impl Format for Measurement

fn format(&self, f: Formatter<'_>)

Writes the defmt representation of self to fmt.

impl Copy for Measurement