Struct co2mon::Sensor

pub struct Sensor { /* fields omitted */ }

Sensor driver struct.

Example

let sensor = Sensor::open_default()?;
let reading = sensor.read_one()?;
println!("{:?}", reading);

Methods

impl Sensor

pub fn open_default() -> Result<Self>

Opens the sensor device using the default USB Vendor ID (0x04d9) and Product ID (0xa052) values.

When multiple devices are connected, the first one will be used.

Example

let sensor = Sensor::open_default()?;
let reading = sensor.read_one()?;
println!("{:?}", reading);

pub fn read_one(&self) -> Result<SingleReading>

Takes a single reading from the sensor.

Errors

An error will be returned on an I/O error or if a message could not be read or decoded.

Example

let sensor = Sensor::open_default()?;
let reading = sensor.read_one()?;
println!("{:?}", reading);

pub fn read(&self) -> Result<Reading>

Takes a multiple readings from the sensor until the temperature and CO₂ concentration are available, and returns both.

Errors

An error will be returned on an I/O error or if a message could not be read or decoded.

Example

let sensor = Sensor::open_default()?;
let reading = sensor.read()?;
println!("{} °C, {} ppm CO₂", reading.temperature(), reading.co2());