#sensor #co2

no-std mh-z19c

Pure rust implementation to read out the Winsen MH-Z19C CO2 sensor

4 releases (2 breaking)

0.3.0 Feb 17, 2023
0.2.0 Mar 22, 2021
0.1.1 Mar 13, 2021
0.1.0 Mar 13, 2021

#1809 in Embedded development

42 downloads per month
Used in rpi-mh-z19c-exporter

MIT/Apache

45KB
1K SLoC

MH-Z19C crate

Pure rust implementation to read out the Winsen MH-Z19C CO2 sensor.

This crate provides an API to read-out the nondispersive infrared (NDIR) CO₂ sensor MH-Z19C by Winsen via the serial (UART) interface.

The provided API supports non-blocking usage and is no_std.

Examples

use mh_z19c::MhZ19C;
use nb::block;

let mut co2sensor = MhZ19C::new(uart);
let co2 = block!(co2sensor.read_co2_ppm())?;
println!("CO₂ concentration: {}ppm", co2);

To activate features of a sensor with a firmware of version 5:

let mut co2sensor = block!(co2sensor.upgrade_to_v5())?;
let co2_temp = block!(co2sensor.read_co2_and_temp())?;
println!("Temperature: {}°C", co2_temp.temp_celsius);

Versioning

This crate uses Semantic Versioning.

License

Licensed under either of

at your option.

Contribution

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.

Dependencies

~80KB