PMS700x

Embeded-hal implementation for the PMS700x family of sensors

Example

```rust let serial = getembedhalserialfrom_somewhere();

let mut pms = Pms700X::new(serial).into_active()?; let result = nb::block!(pms.read())?;

let concentration10 = result.pm10; let concentration25 = result.pm25; let concentration_100 = result.pm100; ```